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Note: This page contains sample records for the topic "lithium ion nano" from the National Library of EnergyBeta (NLEBeta).
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We encourage you to perform a real-time search of NLEBeta
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1

Positive Electrodes of Nano-Scale for Lithium-Ion Batteries (Focusing on Nano-Size Effects)  

Science Journals Connector (OSTI)

One of the most effective methods to improve power density is by the use of very fine cathode particles. We investigated a new excess-lithium method of preparing nano-sized LiCoO2 powders. To begin with, lithium ...

Jun-ichi Yamaki

2014-01-01T23:59:59.000Z

2

Surface reconstruction and chemical evolution of stoichiometric layered cathode materials for lithium-ion batteries  

E-Print Network [OSTI]

Li-Rich Layered Oxides for Lithium Batteries. Nano Lett. 13,O 2 Cathode Material in Lithium Ion Batteries. Adv. Energysolvent decomposition in lithium ion batteries: first-

Lin, Feng

2014-01-01T23:59:59.000Z

3

Embedding nano-silicon in graphene nanosheets by plasma assisted milling for high capacity anode materials in lithium ion batteries  

Science Journals Connector (OSTI)

Abstract The lithium storage performance of silicon (Si) is improved substantially by forming composite of nano-Si particles embedded homogeneously in graphene nanosheets (GNs) using a simple discharge plasma assisted milling (P-milling) method. The synergistic effect of the rapid heating of the plasma and the mechanical ball mill grinding with nano-Si as nanomiller converted the graphite powder to \\{GNs\\} with the integration of nano-Si particles in the in-situ formed GNs. This composite structure inhibits the agglomeration of nano-Si and improves electronic conductivity. The cycling stability and rate capability are enhanced, with a stable reversible capacity of 976 mAhg?1 at 50 mAg?1 for the P-milled 20 h nano-Si/GNs composite. A full cell containing a commercial LiMn2O4 cathode is assembled and demonstrated a satisfying utilization of the P-milled nano-Si/GNs composite anode with stable working potential. This composite shows promise for application in lithium ion batteries.

Wei Sun; Renzong Hu; Hui Liu; Meiqin Zeng; Lichun Yang; Haihui Wang; Min Zhu

2014-01-01T23:59:59.000Z

4

Nano-Structured Li3V2(PO4)3 /Carbon Composite for High Rate Lithium...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Nano-Structured Li3V2(PO4)3 Carbon Composite for High Rate Lithium Ion Batteries. Nano-Structured Li3V2(PO4)3 Carbon Composite for High Rate Lithium Ion Batteries. Abstract:...

5

Hierarchical 3D micro-/nano-V2O5 (vanadium pentoxide) spheres as cathode materials for high-energy and high-power lithium ion-batteries  

Science Journals Connector (OSTI)

Abstract We facilely fabricate hierarchical 3D microspheres consisting of 2D V2O5 (vanadium pentoxide) nanosheets by a low temperature hydrothermal method and use it to structure hierarchical 3D micro-/nano-LIBs (lithium ion batteries) cathode. This is a template-free and facile method easy for scale-up production of hierarchical 3D micro-/nano-structured V2O5 spheres beneficial for high performance \\{LIBs\\} applications. Such a facile method resulted hierarchical 3D micro-/nano-V2O5 possess many unique features good for LIBs: (1) 2D V2O5 nanosheets facilitate the Li+ diffusions and electron transports; (2) hierarchical 3D micro-/nano-cathode structure built up by V2O5 nanosheet spheres will lead to the close and sufficient contact between electrolytes and activate materials and at the same time will create buffer volume to accommodate the volume change during discharging/charging process; and (3) micro-scale V2O5 spheres are easy to result in high cell packing density beneficial for high power battery. As revealed by the experimental results, the micro-/nano-V2O5 electrode demonstrates high initial discharge and charge capacities with no irreversible loss, high rate capacities at different currents and long-lasting lifespan. The high-energy and high-power performances of the micro-/nano-V2O5 electrode is ascribed to the unique hierarchical micro-/nano-structure merits of V2O5 spheres as abovementioned. In view of the advantages of facile fabrication method and unique features of 3D micro-/nano-V2O5 spheres for high power and high energy LIB battery, it is of great significance to beneficially broaden the applications of high-energy and high-power \\{LIBs\\} with creating novel hierarchical micro-/nano-structured V2O5 cathode materials.

Hongwei Bai; Zhaoyang Liu; Darren Delai Sun; Siew Hwa Chan

2014-01-01T23:59:59.000Z

6

Lithium Ion Accomplishments  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Lithium ion Battery Commercialization Lithium ion Battery Commercialization Johnson Controls-Saft Advanced Power Solutions, of Milwaukee, Wisconsin: Johnson Controls-Saft (JCS) will supply lithium-ion batteries to Mercedes for their S Class Hybrid to be introduced in October 2009. Technology developed with DOE support (the VL6P cell) will be used in the S Class battery. In May 2006, the Johnson Controls-Saft Joint Venture was awarded a 24 month $14.4 million contract by the DOE/USABC to develop a 40kW Li ion HEV battery system offering improved safety, low temperature performance, and cost. JCS has reported a 40% cost reduction of the 40kW system being developed in their DOE/USABC contract while maintaining performance. Lithium Ion Battery Material Commercialization Argonne National Laboratory has licensed cathode materials and associated processing

7

Novel Electrolytes for Lithium Ion Batteries  

SciTech Connect (OSTI)

We have been investigating three primary areas related to lithium ion battery electrolytes. First, we have been investigating the thermal stability of novel electrolytes for lithium ion batteries, in particular borate based salts. Second, we have been investigating novel additives to improve the calendar life of lithium ion batteries. Third, we have been investigating the thermal decomposition reactions of electrolytes for lithium-oxygen batteries.

Lucht, Brett L

2014-12-12T23:59:59.000Z

8

Lithium ion conducting electrolytes  

DOE Patents [OSTI]

A liquid, predominantly lithium-conducting, ionic electrolyte is described having exceptionally high conductivity at temperatures of 100 C or lower, including room temperature, and comprising the lithium salts selected from the group consisting of the thiocyanate, iodide, bromide, chloride, perchlorate, acetate, tetrafluoroborate, perfluoromethane sulfonate, perfluoromethane sulfonamide, tetrahaloaluminate, and heptahaloaluminate salts of lithium, with or without a magnesium-salt selected from the group consisting of the perchlorate and acetate salts of magnesium. Certain of the latter embodiments may also contain molecular additives from the group of acetonitrile (CH{sub 3}CN), succinnonitrile (CH{sub 2}CN){sub 2}, and tetraglyme (CH{sub 3}--O--CH{sub 2}--CH{sub 2}--O--){sub 2} (or like solvents) solvated to a Mg{sup +2} cation to lower the freezing point of the electrolyte below room temperature. Other particularly useful embodiments contain up to about 40, but preferably not more than about 25, mol percent of a long chain polyether polymer dissolved in the lithium salts to provide an elastic or rubbery solid electrolyte of high ambient temperature conductivity and exceptional 100 C conductivity. Another embodiment contains up to about but not more than 10 mol percent of a molecular solvent such as acetone. 2 figs.

Angell, C.A.; Liu, C.

1996-04-09T23:59:59.000Z

9

Electrolytes for lithium ion batteries  

SciTech Connect (OSTI)

A family of electrolytes for use in a lithium ion battery. The genus of electrolytes includes ketone-based solvents, such as, 2,4-dimethyl-3-pentanone; 3,3-dimethyl 2-butanone(pinacolone) and 2-butanone. These solvents can be used in combination with non-Lewis Acid salts, such as Li.sub.2[B.sub.12F.sub.12] and LiBOB.

Vaughey, John; Jansen, Andrew N.; Dees, Dennis W.

2014-08-05T23:59:59.000Z

10

Nano-sized Li-Fe composite oxide prepared by a self-catalytic reverse atom transfer radical polymerization approach as an anode material for lithium-ion batteries  

SciTech Connect (OSTI)

A novel Self-catalytic Reverse Atom Transfer Radical Polymerization (RATRP) approach that can provide the radical initiator and the catalyst by the system itself is used to synthesize a nano-sized Li-Fe composite oxide powder in large scale. Its crystalline structure and morphology have been characterized by X-ray diffraction and scanning electron microscopy. The results reveal that the composite is composed of nano-sized LiFeO{sub 2} and Fe{sub 3}O{sub 4}. Its electrochemical properties are evaluated by charge/discharge measurements. The results show that the Li-Fe composite oxide is an excellent anode material for lithium-ion batteries with good cycling performance (1249 mAh g{sup -1} at 100th cycle) and outstanding rate capability (967 mAh g{sup -1} at 5 C). Such a self-catalytic RATRP approach provides a way to synthesize nano-sized iron oxide-based anode materials industrially with preferable electrochemical performance and can also be applied in other polymer-related area.

Yue, G.Q.; Liu, C.; Wang, D.Z. [CAS Key Laboratory of Materials for Energy Conversions, Department of Materials Science and Engineering, University of Science and Technology of China, Anhui Hefei 230026 (China)] [CAS Key Laboratory of Materials for Energy Conversions, Department of Materials Science and Engineering, University of Science and Technology of China, Anhui Hefei 230026 (China); Wang, Y.; Yuan, Q.F.; Xu, R.; Zhao, F.G. [Amperex Technology Ltd, Guanggong Dongguan 523080 (China)] [Amperex Technology Ltd, Guanggong Dongguan 523080 (China); Chen, C.H., E-mail: cchchen@ustc.edu.cn [CAS Key Laboratory of Materials for Energy Conversions, Department of Materials Science and Engineering, University of Science and Technology of China, Anhui Hefei 230026 (China)

2010-09-15T23:59:59.000Z

11

Anode materials for lithium-ion batteries  

DOE Patents [OSTI]

An anode material for lithium-ion batteries is provided that comprises an elongated core structure capable of forming an alloy with lithium; and a plurality of nanostructures placed on a surface of the core structure, with each nanostructure being capable of forming an alloy with lithium and spaced at a predetermined distance from adjacent nanostructures.

Sunkara, Mahendra Kumar; Meduri, Praveen; Sumanasekera, Gamini

2014-12-30T23:59:59.000Z

12

SECONDARY BATTERIES – LITHIUM RECHARGEABLE SYSTEMS – LITHIUM-ION | Overview  

Science Journals Connector (OSTI)

The need to increase the specific energy and energy density of secondary batteries has become more urgent as a result of the recent rapid development of new applications, such as electric vehicles (EVs), load leveling, and various types of portable equipments, including cellular phones, personal computers, camcorders, and digital cameras. Among various types of secondary batteries, rechargeable lithium-ion batteries have been used in a wide variety of portable equipments due to their high energy density. Many researchers have contributed to develop lithium-ion batteries, and their contributions are reviewed from historical aspects onward, including the researches in primary battery with metal lithium anode, and secondary battery with metal lithium negative electrode. Researches of new materials are still very active to develop new lithium-ion batteries with higher performances. The researches of positive and negative electrode active materials and electrolytes are also reviewed historically.

J. Yamaki

2009-01-01T23:59:59.000Z

13

Exploring the interaction between lithium ion and defective graphene...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Exploring the interaction between lithium ion and defective graphene surface using dispersion corrected DFT studies. Exploring the interaction between lithium ion and defective...

14

Expansion of Novolyte Capacity for Lithium Ion Electrolyte Production...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

15eswise2012p.pdf More Documents & Publications Expansion of Novolyte Capacity for Lithium Ion Electrolyte Production Expansion of Novolyte Capacity for Lithium Ion Electrolyte...

15

Celgard US Manufacturing Facilities Initiative for Lithium-ion...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

More Documents & Publications Celgard US Manufacturing Facilities Initiative for Lithium-ion Battery Separator Celgard US Manufacturing Facilities Initiative for Lithium-ion...

16

Expansion of Novolyte Capacity for Lithium Ion Electrolyte Production...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

15eswise2011p.pdf More Documents & Publications Expansion of Novolyte Capacity for Lithium Ion Electrolyte Production Expansion of Novolyte Capacity for Lithium Ion Electrolyte...

17

Multi-layered, chemically bonded lithium-ion and lithium/air batteries  

SciTech Connect (OSTI)

Disclosed are multilayer, porous, thin-layered lithium-ion batteries that include an inorganic separator as a thin layer that is chemically bonded to surfaces of positive and negative electrode layers. Thus, in such disclosed lithium-ion batteries, the electrodes and separator are made to form non-discrete (i.e., integral) thin layers. Also disclosed are methods of fabricating integrally connected, thin, multilayer lithium batteries including lithium-ion and lithium/air batteries.

Narula, Chaitanya Kumar; Nanda, Jagjit; Bischoff, Brian L; Bhave, Ramesh R

2014-05-13T23:59:59.000Z

18

Towards Safer Lithium-Ion Batteries  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Towards Safer Lithium-Ion Batteries Towards Safer Lithium-Ion Batteries Speaker(s): Guoying Chen Date: October 25, 2007 - 12:00pm Location: 90-3122 Seminar Host/Point of Contact: Venkat Srinivasan Safety problems associated with rechargeable lithium batteries are now well recognized. Recent spectacular fires involving cell phones, laptops, and (here at LBNL) AA cells have made the news. These events are generally caused by overcharging and subsequent development of internal shorts. Before these batteries can be used in vehicle applications, improvement in cell safety is a must. We have been active in the area of lithium battery safety for many years. For example, a versatile, inexpensive overcharge protection approach developed in our laboratory, uses an electroactive polymer to act as a reversible, self-actuating, low resistance internal

19

Development of Large Format Lithium Ion Cells with Higher Energy...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Large Format Lithium Ion Cells with Higher Energy Density Exceeding 500WhL Development of Large Format Lithium Ion Cells with Higher Energy Density Exceeding 500WhL 2012 DOE...

20

Mitigating Performance Degradation of High-Energy Lithium-Ion...  

Broader source: Energy.gov (indexed) [DOE]

Mitigating Performance Degradation of High-Energy Lithium-Ion Cells Mitigating Performance Degradation of High-Energy Lithium-Ion Cells 2013 DOE Hydrogen and Fuel Cells Program and...

Note: This page contains sample records for the topic "lithium ion nano" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

Lithium-ion batteries having conformal solid electrolyte layers  

DOE Patents [OSTI]

Hybrid solid-liquid electrolyte lithium-ion battery devices are disclosed. Certain devices comprise anodes and cathodes conformally coated with an electron insulating and lithium ion conductive solid electrolyte layer.

Kim, Gi-Heon; Jung, Yoon Seok

2014-05-27T23:59:59.000Z

22

Lithium Ion Batteries DOI: 10.1002/anie.201103163  

E-Print Network [OSTI]

Lithium Ion Batteries DOI: 10.1002/anie.201103163 LiMn1Ã?xFexPO4 Nanorods Grown on Graphene Sheets for Ultrahigh- Rate-Performance Lithium Ion Batteries** Hailiang Wang, Yuan Yang, Yongye Liang, Li-Feng Cui cathode materials for rechargeable lithium ion batteries (LIBs) owing to their high capacity, excellent

Cui, Yi

23

Mechanical Properties of Lithium-Ion Battery Separator Materials  

E-Print Network [OSTI]

Mechanical Properties of Lithium-Ion Battery Separator Materials Patrick Sinko B.S. Materials Science and Engineering 2013, Virginia Tech John Cannarella PhD. Candidate Mechanical and Aerospace and motivation ­ Why study lithium-ion batteries? ­ Lithium-ion battery fundamentals ­ Why study the mechanical

Petta, Jason

24

Batteries - Beyond Lithium Ion Breakout session  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

BEYOND LITHIUM ION BREAKOUT BEYOND LITHIUM ION BREAKOUT Breakout Session #1 - Discussion of Performance Targets and Barriers Comments on the Achievability of the Targets * 1 - Zn-Air possible either w/ or w/o electric-hybridization; also possible with a solid electrolyte variant * 2 - Multivalent systems (e.g Mg), potentially needing hybrid-battery * 3 - Advanced Li-ion with hybridization @ cell / molecular level for high-energy and high- power * 4 - MH-air, Li-air, Li-S, all show promise * 5 - High-energy density (e.g. Na-metal ) flow battery can meet power and energy goals * 6 - Solid-state batteries (all types) * 7 - New cathode chemistries (beyond S) to increase voltage * 8 - New high-voltage non-flammable electrolytes (both li-ion and beyond li-ion) * 9 - Power to energy ratio of >=12 needed for fast charge (10 min)  So liquid refill capable

25

Batteries - Lithium-ion - Developing Better High-Energy Batteries for  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Argonne's Lithium-Ion Battery Technology Offers Reliability, Greater Safety Argonne's Lithium-Ion Battery Technology Offers Reliability, Greater Safety Michael Thackeray holds a model of the molecular structure associated with Argonne's advanced cathode material. Researcher Michael Thackeray holds a model of the molecular structure associated with Argonne's advanced cathode material, a key element of the material licensed to NanoeXa. Argonne's an internationally recognized leader in the development of lithium-battery technology. "Our success reflects a combined effort with a materials group and a technology group to exploit the concept to tackle key safety and energy problems associated with conventional technology," said Argonne's Michael Thackeray. Recently, Argonne announced a licensing agreement with NanoeXa (see

26

Transparent lithium-ion batteries  

Science Journals Connector (OSTI)

...computers). Typically, a battery is composed of electrode...nanotubes (5, 7), graphene (11), and organic...is not suitable for batteries, because, to our knowledge...production of 30-inch graphene films for transparent electrodes...rechargeable lithium batteries . Nature 414 : 359 – 367...

Yuan Yang; Sangmoo Jeong; Liangbing Hu; Hui Wu; Seok Woo Lee; Yi Cui

2011-01-01T23:59:59.000Z

27

Electrothermal Analysis of Lithium Ion Batteries  

SciTech Connect (OSTI)

This report presents the electrothermal analysis and testing of lithium ion battery performance. The objectives of this report are to: (1) develop an electrothermal process/model for predicting thermal performance of real battery cells and modules; and (2) use the electrothermal model to evaluate various designs to improve battery thermal performance.

Pesaran, A.; Vlahinos, A.; Bharathan, D.; Duong, T.

2006-03-01T23:59:59.000Z

28

Nano-scale Composite Hetero-structures: Novel High Capacity Reversible...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Nano-scale Composite Hetero-structures: Novel High Capacity Reversible Anodes for Lithium-ion Batteries Nano-scale Composite Hetero-structures: Novel High Capacity Reversible...

29

Lithium borate cluster salts as novel redox shuttles for overcharge protection of lithium-ion cells.  

SciTech Connect (OSTI)

Redox shuttle is a promising mechanism for intrinsic overcharge protection in lithium-ion cells and batteries. Two lithium borate cluster salts are reported to function as both the main salt for a nonaqueous electrolyte and the redox shuttle for overcharge protection. Lithium borate cluster salts with a tunable redox potential are promising candidates for overcharge protection for most positive electrodes in state-of-the-art lithium-ion cells.

Chen, Z.; Liu, J.; Jansen, A. N.; Casteel, B.; Amine, K.; GirishKumar, G.; Air Products and Chemicals, Inc.

2010-01-01T23:59:59.000Z

30

High-discharge-rate lithium ion battery  

DOE Patents [OSTI]

The present invention provides for a lithium ion battery and process for creating such, comprising higher binder to carbon conductor ratios than presently used in the industry. The battery is characterized by much lower interfacial resistances at the anode and cathode as a result of initially mixing a carbon conductor with a binder, then with the active material. Further improvements in cycleability can also be realized by first mixing the carbon conductor with the active material first and then adding the binder.

Liu, Gao; Battaglia, Vincent S; Zheng, Honghe

2014-04-22T23:59:59.000Z

31

Flexible graphene-based lithium ion batteries with ultrafast charge and discharge rates  

Science Journals Connector (OSTI)

Flexible graphene-based lithium ion batteries with ultrafast charge and...and flexible lithium ion battery made from graphene foam, a three-dimensional...and flexible lithium ion battery made from graphene foam, a three-dimensional...

Na Li; Zongping Chen; Wencai Ren; Feng Li; Hui-Ming Cheng

2012-01-01T23:59:59.000Z

32

Stress fields in hollow core–shell spherical electrodes of lithium ion batteries  

Science Journals Connector (OSTI)

...core-shell spherical electrodes of lithium ion batteries Yingjie Liu 1 Pengyu Lv...System, Department of Mechanics and Engineering Science, College of Engineering...structure design of electrodes of lithium ion batteries. lithium ion battery...

2014-01-01T23:59:59.000Z

33

Lithium Ion Electrode Production NDE and QC Considerations |...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

QC Considerations Lithium Ion Electrode Production NDE and QC Considerations Review of Oak Ridge process and QC activities by David Wood, Oak Ridge National Laboratory, at the...

34

Physically based Impedance Modelling of Lithium-Ion Cells.  

E-Print Network [OSTI]

??In this book, a new procedure to analyze lithium-ion cells is introduced. The cells are disassembled to analyze their components in experimental cell housings. Then,… (more)

Illig, Jörg

2014-01-01T23:59:59.000Z

35

JCESR: Moving Beyond Lithium-Ion | Argonne National Laboratory  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

JCESR: Moving Beyond Lithium-Ion Share Topic Energy Energy usage Energy storage Batteries Browse By - Any - Energy -Energy efficiency --Vehicles ---Alternative fuels ---Automotive...

36

High capacity nanostructured electrode materials for lithium-ion batteries.  

E-Print Network [OSTI]

??The lithium-ion battery is currently the most widely used electrochemical storage system on the market, with applications ranging from portable electronics to electric vehicles, to… (more)

Seng, Kuok H

2013-01-01T23:59:59.000Z

37

Development of Large Format Lithium Ion Cells with Higher Energy...  

Broader source: Energy.gov (indexed) [DOE]

Overall Project Goal: To research, develop and demonstrate large format lithium ion cells with energy density > 500 WhL Barriers addressed: - Low energy density - Cost -...

38

Sandia National Laboratories: lithium-ion-based solid electrolyte...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

lithium-ion-based solid electrolyte battery Sandia Labs, Front Edge Technology, Inc., Pacific Northwest National Lab, Univ. of California-Los Angeles: Micro Power Source On March...

39

Development of Electrolytes for Lithium-ion Batteries  

Broader source: Energy.gov (indexed) [DOE]

Battaglia & J. Kerr (LBNL) * M. Payne (Novolyte) * F. Puglia & B. Ravdel (Yardney) * G. Smith & O. Borodin (U. Utah) 3 3 Develop novel electrolytes for lithium ion batteries that...

40

Significant influence of insufficient lithium on electrochemical performance of lithium-rich layered oxide cathodes for lithium ion batteries  

Science Journals Connector (OSTI)

Abstract With an aim to broaden the understanding of the factors that govern electrochemical performance of lithium-rich layered oxide, the influences of insufficient lithium on reversible capacity, cyclic stability and rate capability of the oxide as cathode of lithium ion battery are investigated in this study. Various concentrations of lithium precursor are introduced to synthesize a target composition Li[Li0.13Ni0.30Ni0.57]O2, and the resulting products are characterized with inductively coupled plasma spectrum, scanning electron microscope, X-ray diffraction, Raman spectroscopy, and electrochemical measurements. The results indicate that the lithium content in the resulting oxide decreases with reducing the concentration of lithium precursor from 10wt%-excess lithium to stoichiometric lithium, due to insufficient compensation for lithium volatilization during synthesis process at high temperature. However, all these oxides still exhibit typically structural and electrochemical characteristics of lithium-rich layered oxides. Interestingly, with decreasing the Li content in the oxide, its reversible capacity increases due to relatively higher content of active transition-metal ions, while the cyclic stability degrades severely because of structural instability induced by higher content of Mn3+ ions and deeper lithium extraction.

Xingde Xiang; Weishan Li

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "lithium ion nano" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

Lithium Source For High Performance Li-ion Cells | Department...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Li-ion Cells Lithium Source For High Performance Li-ion Cells 2012 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer...

42

Side Reactions in Lithium-Ion Batteries  

E-Print Network [OSTI]

even with excess negative capacity, lithium can deposit ifdeposits lithium and reaches cutoff sooner. electrode excessexcess by 10%, an extension of about 0.4 mm is sufficient to prevent the onset of lithium

Tang, Maureen Han-Mei

2012-01-01T23:59:59.000Z

43

Lithium-Ion Battery Teacher Workshop  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Lithium Ion Battery Teacher Workshop Lithium Ion Battery Teacher Workshop 2012 2 2 screw eyes 2 No. 14 rubber bands 2 alligator clips 1 plastic gear font 2 steel axles 4 nylon spacers 2 Pitsco GT-R Wheels 2 Pitsco GT-F Wheels 2 balsa wood sheets 1 No. 280 motor Also: Parts List 3 Tools Required 1. Soldering iron 2. Hobby knife or coping saw 3. Glue gun 4. Needlenose pliers 5. 2 C-clamps 6. Ruler 4 1. Using a No. 2 pencil, draw Line A down the center of a balsa sheet. Making the Chassis 5 2. Turn over the balsa sheet and draw Line B ¾ of an inch from one end of the sheet. Making the Chassis 6 3. Draw a 5/8" x ½" notch from 1" from the top of the sheet. Making the Chassis 7 4. Draw Line C 2 ½" from the other end of the same sheet of balsa. Making the Chassis 8 5. Using a sharp utility knife or a coping saw, cut

44

Chemical Shuttle Additives in Lithium Ion Batteries  

SciTech Connect (OSTI)

The goals of this program were to discover and implement a redox shuttle that is compatible with large format lithium ion cells utilizing LiNi{sub 1/3}Mn{sub 1/3}Co{sub 1/3}O{sub 2} (NMC) cathode material and to understand the mechanism of redox shuttle action. Many redox shuttles, both commercially available and experimental, were tested and much fundamental information regarding the mechanism of redox shuttle action was discovered. In particular, studies surrounding the mechanism of the reduction of the oxidized redox shuttle at the carbon anode surface were particularly revealing. The initial redox shuttle candidate, namely 2-(pentafluorophenyl)-tetrafluoro-1,3,2-benzodioxaborole (BDB) supplied by Argonne National Laboratory (ANL, Lemont, Illinois), did not effectively protect cells containing NMC cathodes from overcharge. The ANL-RS2 redox shuttle molecule, namely 1,4-bis(2-methoxyethoxy)-2,5-di-tert-butyl-benzene, which is a derivative of the commercially successful redox shuttle 2,5-di-tert-butyl-1,4-dimethoxybenzene (DDB, 3M, St. Paul, Minnesota), is an effective redox shuttle for cells employing LiFePO{sub 4} (LFP) cathode material. The main advantage of ANL-RS2 over DDB is its larger solubility in electrolyte; however, ANL-RS2 is not as stable as DDB. This shuttle also may be effectively used to rebalance cells in strings that utilize LFP cathodes. The shuttle is compatible with both LTO and graphite anode materials although the cell with graphite degrades faster than the cell with LTO, possibly because of a reaction with the SEI layer. The degradation products of redox shuttle ANL-RS2 were positively identified. Commercially available redox shuttles Li{sub 2}B{sub 12}F{sub 12} (Air Products, Allentown, Pennsylvania and Showa Denko, Japan) and DDB were evaluated and were found to be stable and effective redox shuttles at low C-rates. The Li{sub 2}B{sub 12}F{sub 12} is suitable for lithium ion cells utilizing a high voltage cathode (potential that is higher than NMC) and the DDB is useful for lithium ion cells with LFP cathodes (potential that is lower than NMC). A 4.5 V class redox shuttle provided by Argonne National Laboratory was evaluated which provides a few cycles of overcharge protection for lithium ion cells containing NMC cathodes but it is not stable enough for consideration. Thus, a redox shuttle with an appropriate redox potential and sufficient chemical and electrochemical stability for commercial use in larger format lithium ion cells with NMC cathodes was not found. Molecular imprinting of the redox shuttle molecule during solid electrolyte interphase (SEI) layer formation likely contributes to the successful reduction of oxidized redox shuttle species at carbon anodes. This helps to understand how a carbon anode covered with an SEI layer, that is supposed to be electrically insulating, can reduce the oxidized form of a redox shuttle.

Patterson, Mary

2013-03-31T23:59:59.000Z

45

A Better Anode Design to Improve Lithium-Ion Batteries  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

A Better Anode Design to Improve A Better Anode Design to Improve Lithium-Ion Batteries A Better Anode Design to Improve Lithium-Ion Batteries Print Friday, 23 March 2012 13:53 Lithium-ion batteries are in smart phones, laptops, most other consumer electronics, and the newest electric cars. Good as these batteries are, the need for energy storage in batteries is surpassing current technologies. In a lithium-ion battery, charge moves from the cathode to the anode, a critical component for storing energy. A team of Berkeley Lab scientists has designed a new kind of anode that absorbs eight times the lithium of current designs, and has maintained its greatly increased energy capacity after more than a year of testing and many hundreds of charge-discharge cycles. Cyclical Science Succeeds

46

Development of Lithium?ion Battery as Energy Storage for Mobile Power Sources Applications  

Science Journals Connector (OSTI)

In view of the need to protect the global environment and save energy there has been strong demand for the development of lithium?ion battery technology as a energy storage system especially for Light Electric Vehicle (LEV) and electric vehicles (EV) applications. The R&D trend in the lithium?ion battery development is toward the high power and energy density cheaper in price and high safety standard. In our laboratory the research and development of lithium?ion battery technology was mainly focus to develop high power density performance of cathode material which is focusing to the Li?metal?oxide system LiMO 2 where M=Co Ni Mn and its combination. The nano particle size material which has irregular particle shape and high specific surface area was successfully synthesized by self propagating combustion technique. As a result the energy density and power density of the synthesized materials are significantly improved. In addition we also developed variety of sizes of lithium?ion battery prototype including (i) small size for electronic gadgets such as mobile phone and PDA applications (ii) medium size for remote control toys and power tools applications and (iii) battery module for high power application such as electric bicycle and electric scooter applications. The detail performance of R&D in advanced materials and prototype development in AMREC SIRIM Berhad will be discussed in this paper.

Mohd Ali Sulaiman; Hasimah Hasan

2009-01-01T23:59:59.000Z

47

Recycling of Lithium-Ion Batteries  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

B. Dunn B. Dunn Center for Transportation Research Argonne National Laboratory Recycling of Lithium-Ion Batteries Plug-In 2013 San Diego, CA October 2, 2013 The submitted manuscript has been created by UChicago Argonne, LLC, Operator of Argonne National Laboratory ("Argonne"). Argonne, a U.S. Department of Energy Office of Science laboratory, is operated under Contract No. DE-AC02-06CH11357. The U.S. Government retains for itself, and others acting on its behalf, a paid-up nonexclusive, irrevocable worldwide license in said article to reproduce, prepare derivative works, distribute copies to the public, and perform publicly and display publicly, by or on behalf of the Government.

48

Materials Challenges and Opportunities of Lithium Ion Batteries  

Science Journals Connector (OSTI)

His research interests are in the area of materials for lithium ion batteries, fuel cells, and solar cells, including novel synthesis approaches for nanomaterials. ... Lithium–sulfur (Li–S) batteries with a high theoretical energy density of ?2500 Wh kg–1 are considered as one promising rechargeable battery chemistry for next-generation energy storage. ...

Arumugam Manthiram

2011-01-10T23:59:59.000Z

49

Abstract--This paper describes experimental results aiming at analyzing lithium-ion batteries performances  

E-Print Network [OSTI]

years, Saft has been developing a range of lithium ion cells and batteries to cover the full spectrum. To follow such a characteristic, electrochemical impedance spectroscopy (EIS) measurements on Saft lithium or several cells. II. OVERVIEW OF EXPERIMENT A. Used lithium-ion cells The cells used are lithium-ion Saft

Boyer, Edmond

50

Students race lithium ion battery powered cars in Pantex competition |  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

race lithium ion battery powered cars in Pantex competition | race lithium ion battery powered cars in Pantex competition | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Continuing Management Reform Countering Nuclear Terrorism About Us Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Media Room Congressional Testimony Fact Sheets Newsletters Press Releases Speeches Events Social Media Video Gallery Photo Gallery NNSA Archive Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog Home > NNSA Blog > Students race lithium ion battery powered cars ... Students race lithium ion battery powered cars in Pantex competition Posted By Greg Cunningham, Pantex Public Affairs

51

Lithium Ion Electrode Production NDE and QC Considerations  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

3 Presentation name New Directions in Lithium Ion Electrode In-Line NDE * Low-cost IR laser thickness measurement (can be done in multiple point scans across the web or an entire...

52

Understanding Why Silicon Anodes of Lithium-Ion Batteries Are...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Understanding Why Silicon Anodes of Lithium-Ion Batteries Are Fast to Discharge but Slow to Charge December 02, 2014 Measured and calculated rate-performance of a Si thin-film (70...

53

Thermo-mechanical Behavior of Lithium-ion Battery Electrodes  

E-Print Network [OSTI]

Developing electric vehicles is widely considered as a direct approach to resolve the energy and environmental challenges faced by the human race. As one of the most promising power solutions to electric cars, the lithium ion battery is expected...

An, Kai

2013-11-25T23:59:59.000Z

54

Novel Electrolyte Enables Stable Graphite Anodes in Lithium Ion...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

(1) A194-A200 (2014). (1,716 KB) Technology Marketing Summary Berkeley Lab researchers led by Gao Liu have developed an improved lithium ion battery electrolyte containing a...

55

Three-Dimensional Lithium-Ion Battery Model (Presentation)  

SciTech Connect (OSTI)

Nonuniform battery physics can cause unexpected performance and life degradations in lithium-ion batteries; a three-dimensional cell performance model was developed by integrating an electrode-scale submodel using a multiscale modeling scheme.

Kim, G. H.; Smith, K.

2008-05-01T23:59:59.000Z

56

Graphene-Based Composite Anodes for Lithium-Ion Batteries  

Science Journals Connector (OSTI)

Graphene has emerged as a novel, highly promising ... . As an anode material for lithium-ion batteries, it was shown that it cannot be ... cycling that leads to the failure of the batteries. To resolve this probl...

Nathalie Lavoie; Fabrice M. Courtel…

2013-01-01T23:59:59.000Z

57

The application of graphene in lithium ion battery electrode materials  

Science Journals Connector (OSTI)

Graphene is composed of a single atomic layer ... concept, structure, properties, preparation methods of graphene and its application in lithium ion batteries. A continuous 3D conductive network formed by graphene

Jiping Zhu; Rui Duan; Sheng Zhang; Nan Jiang; Yangyang Zhang; Jie Zhu

2014-10-01T23:59:59.000Z

58

Thermal Behavior and Modeling of Lithium-Ion Cuboid Battery  

Science Journals Connector (OSTI)

Thermal behaviour and model are important items should be considered when designing a battery pack cooling system. Lithium-ion battery thermal behaviour and modelling method are investigated in this paper. The te...

Hongjie Wu; Shifei Yuan

2013-01-01T23:59:59.000Z

59

Development of Large Format Lithium Ion Cells with Higher Energy...  

Broader source: Energy.gov (indexed) [DOE]

Hydrogen and Fuel Cells Program Review ES-127 Development of Large Format Lithium Ion Cells with Higher Energy Density Erin O'Driscoll (PI) Han Wu (Presenter) Dow Kokam May 13,...

60

Synthesis, Characterization and Performance of Cathodes for Lithium Ion Batteries  

E-Print Network [OSTI]

lithium ion batteries. Materials Science & Engineering R-Ion Batteries by Jianxin Zhu Doctor of Philosophy, Graduate Program in Materials Science and EngineeringIon Batteries A Dissertation submitted in partial satisfaction of the requirements for the degree of Doctor of Philosophy in Materials Science and Engineering

Zhu, Jianxin

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "lithium ion nano" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

An Advanced Lithium-Ion Battery Based on a Graphene Anode and a Lithium Iron Phosphate Cathode  

Science Journals Connector (OSTI)

An Advanced Lithium-Ion Battery Based on a Graphene Anode and a Lithium Iron Phosphate Cathode ... To the best of our knowledge, complete, graphene-based, lithium ion batteries having performances comparable with those offered by the present technology are rarely reported; hence, we believe that the results disclosed in this work may open up new opportunities for exploiting graphene in the lithium-ion battery science and development. ... A full Li-ion battery (Figure 4a) is obtained by coupling the Cu-supported graphene nanoflake anode with a lithium iron phosphate, LiFePO4, that is, a cathode commonly used in commercial batteries. ...

Jusef Hassoun; Francesco Bonaccorso; Marco Agostini; Marco Angelucci; Maria Grazia Betti; Roberto Cingolani; Mauro Gemmi; Carlo Mariani; Stefania Panero; Vittorio Pellegrini; Bruno Scrosati

2014-07-15T23:59:59.000Z

62

SURFACE RECONSTRUCTION AND CHEMICAL EVOLUTION OF STOICHIOMETRIC LAYERED CATHODE MATERIALS FOR LITHIUM-ION BATTERIES  

E-Print Network [OSTI]

CATHODE MATERIALS FOR LITHIUM-ION BATTERIES Feng Lin, 1*As shown in Figure 2, in lithium-metal half-cells, capacitypredominantly occurs along the lithium diffusion channels,

Lin, Feng

2014-01-01T23:59:59.000Z

63

Performance and Characterization of Lithium-Ion Type Polymer Batteries  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Performance and Characterization of Lithium-Ion Type Polymer Batteries Performance and Characterization of Lithium-Ion Type Polymer Batteries Speaker(s): Myung D. Cho Date: January 18, 2002 - 12:00pm Location: Bldg. 90 Seminar Host/Point of Contact: Frank McLarnon A new process for the preparation of lithium-polymer batteries with crosslinked gel-polymer electrolyte will be introduced. The new process employs a thermal crosslinking method rather than cell lamination, and is termed "lithium ion type polymer battery (ITPB)". This thermal crosslinking process has many advantages over the standard lamination method, such as fusing the polymer into the electrodes and better adhesion between the electrolyte and electrodes. The new method results in improved high-temperature stability and a simpler process, as well as the improved

64

Muon Spin Relaxation Studies of Lithium Nitridometallate Battery Materials: Muon Trapping and Lithium Ion Diffusion  

Science Journals Connector (OSTI)

Muon Spin Relaxation Studies of Lithium Nitridometallate Battery Materials: Muon Trapping and Lithium Ion Diffusion ... The muons themselves are quasi-static, most probably located in a 4h site between the [Li2N] plane and the Li(1)/Ni layer. ... The initial fall in ? results from an increase in muon hopping as the temperature is raised, while the subsequent rise originates from an increasing proportion of trapped and therefore static muons. ...

Andrew S. Powell; James S. Lord; Duncan H. Gregory; Jeremy J. Titman

2009-10-27T23:59:59.000Z

65

Design of Safer High-Energy Density Materials for Lithium-Ion...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Safer High-Energy Density Materials for Lithium-Ion Cells Design of Safer High-Energy Density Materials for Lithium-Ion Cells 2012 DOE Hydrogen and Fuel Cells Program and Vehicle...

66

Post-Test Analysis of Lithium-Ion Battery Materials at Argonne...  

Broader source: Energy.gov (indexed) [DOE]

Test Analysis of Lithium-Ion Battery Materials at Argonne National Laboratory Post-Test Analysis of Lithium-Ion Battery Materials at Argonne National Laboratory 2013 DOE Hydrogen...

67

Thermal behaviors of electrolytes in lithium-ion batteries determined by differential scanning calorimeter  

Science Journals Connector (OSTI)

Lithium-ion batteries have been widely used in daily electric ... occurred from time to time. Lithium-ion batteries composed of various electrolytes (containing organic solvents ... to meet safety requirements of...

Yu-Yun Sun; Tsai-Ying Hsieh; Yih-Shing Duh…

2014-06-01T23:59:59.000Z

68

A New Method for Quantitative Marking of Deposited Lithium via Chemical Treatment on Graphite Anodes in Lithium-Ion Cells  

E-Print Network [OSTI]

A New Method for Quantitative Marking of Deposited Lithium via Chemical Treatment on Graphite Anodes in Lithium-Ion Cells Yvonne Krämer*[a] , Claudia Birkenmaier[b] , Julian Feinauer[a,c] , Andreas*[e] and Thomas Schleid[f] Abstract: A novel approach for the marking of deposited lithium on graphite anodes from

Schmidt, Volker

69

Side Reactions in Lithium-Ion Batteries  

E-Print Network [OSTI]

2.8 V vs. lithium suggests Tafel kinetics, but the bend in? a gives the slope of the Tafel region, k eff affects itsincreases, the slope of the Tafel region remains constant,

Tang, Maureen Han-Mei

2012-01-01T23:59:59.000Z

70

Advanced Electrolyte Additives for PHEV/EV Lithium-ion Battery...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

More Documents & Publications Advanced Electrolyte Additives for PHEVEV Lithium-ion Battery Development of Advanced Electrolytes and Electrolyte Additives...

71

[11] Cui L, Hu L, Choi JW, Cui Y. Light-weight free-standing carbon nanotube-silicon films for anodes of lithium ion batteries.  

E-Print Network [OSTI]

for anodes of lithium ion batteries. ACS Nano 2010;4:3671­8. [12] Krivchenko VA, Pilevsky AA, Rakhimov AT online 6 October 2011 A B S T R A C T Chemically modified graphenes (CMGs) are promising candidates 2011 Elsevier Ltd. All rights reserved. Graphene has excellent mechanical, electrical, thermal

72

Nanostructured lithium-aluminum alloy electrodes for lithium-ion batteries.  

SciTech Connect (OSTI)

Electrodeposited aluminum films and template-synthesized aluminum nanorods are examined as negative electrodes for lithium-ion batteries. The lithium-aluminum alloying reaction is observed electrochemically with cyclic voltammetry and galvanostatic cycling in lithium half-cells. The electrodeposition reaction is shown to have high faradaic efficiency, and electrodeposited aluminum films reach theoretical capacity for the formation of LiAl (1 Ah/g). The performance of electrodeposited aluminum films is dependent on film thickness, with thicker films exhibiting better cycling behavior. The same trend is shown for electron-beam deposited aluminum films, suggesting that aluminum film thickness is the major determinant in electrochemical performance regardless of deposition technique. Synthesis of aluminum nanorod arrays on stainless steel substrates is demonstrated using electrodeposition into anodic aluminum oxide templates followed by template dissolution. Unlike nanostructures of other lithium-alloying materials, the electrochemical performance of these aluminum nanorod arrays is worse than that of bulk aluminum.

Hudak, Nicholas S.; Huber, Dale L.

2010-12-01T23:59:59.000Z

73

Adaptable Silicon–Carbon Nanocables Sandwiched between Reduced Graphene Oxide Sheets as Lithium Ion Battery Anodes  

Science Journals Connector (OSTI)

Adaptable Silicon–Carbon Nanocables Sandwiched between Reduced Graphene Oxide Sheets as Lithium Ion Battery Anodes ... Despite rapidly growing interest in the application of graphene in lithium ion batteries, the interaction of the graphene with lithium ions and electrolyte species during electrochemical cycling is not fully understood. ...

Bin Wang; Xianglong Li; Xianfeng Zhang; Bin Luo; Meihua Jin; Minghui Liang; Shadi A. Dayeh; S. T. Picraux; Linjie Zhi

2013-01-02T23:59:59.000Z

74

Abstract--This paper describes experimental results aiming at analyzing lithium-ion batteries performances  

E-Print Network [OSTI]

several years SAFT has developed a range of lithium ion cells and batteries to cover the full spectrum. To follow such a characteristic, electrochemical impedance spectroscopy (EIS) measurements on SAFT lithium-ion cells The cells used are lithium-ion SAFT power cells: VL30P which outputs a nominal capacity of 30 Ah

Paris-Sud XI, Université de

75

Thermal Analysis of Lithium-Ion Battery Packs and Thermal Management Solutions.  

E-Print Network [OSTI]

??Lithium ion (Li-ion) batteries have been gaining recognition as the primary technology for energy storage in motive applications due to their improved specific energy densities,… (more)

Bhatia, Padampat Chander

2013-01-01T23:59:59.000Z

76

Lithium ion batteries with titania/graphene anodes  

DOE Patents [OSTI]

Lithium ion batteries having an anode comprising at least one graphene layer in electrical communication with titania to form a nanocomposite material, a cathode comprising a lithium olivine structure, and an electrolyte. The graphene layer has a carbon to oxygen ratio of between 15 to 1 and 500 to 1 and a surface area of between 400 and 2630 m.sup.2/g. The nanocomposite material has a specific capacity at least twice that of a titania material without graphene material at a charge/discharge rate greater than about 10 C. The olivine structure of the cathode of the lithium ion battery of the present invention is LiMPO.sub.4 where M is selected from the group consisting of Fe, Mn, Co, Ni and combinations thereof.

Liu, Jun; Choi, Daiwon; Yang, Zhenguo; Wang, Donghai; Graff, Gordon L; Nie, Zimin; Viswanathan, Vilayanur V; Zhang, Jason; Xu, Wu; Kim, Jin Yong

2013-05-28T23:59:59.000Z

77

Non-aqueous electrolyte for lithium-ion battery  

DOE Patents [OSTI]

The present technology relates to stabilizing additives and electrolytes containing the same for use in electrochemical devices such as lithium ion batteries and capacitors. The stabilizing additives include triazinane triones and bicyclic compounds comprising succinic anhydride, such as compounds of Formulas I and II described herein.

Zhang, Lu; Zhang, Zhengcheng; Amine, Khalil

2014-04-15T23:59:59.000Z

78

Novel carbonaceous materials used as anodes in lithium ion cells  

SciTech Connect (OSTI)

The objective of this work is to synthesize disordered carbons used as anodes in lithium ion batteries, where the porosity and surface area are controlled. Both parameters are critical since the irreversible capacity obtained in the first cycle seems to be associated with the surface area (an exfoliation mechanism occurs in which the exposed surface area continues to increase).

Sandi, G.; Winans, R.E.; Carrado, K.A.

1997-09-01T23:59:59.000Z

79

Structural Integration of Silicon Solar Cells and Lithium-ion Batteries Using Printed Electronics  

E-Print Network [OSTI]

state lithium-ion (Li-ion) battery were adhesively joinedfilm solid state Li-ion battery was not able to withstand5.8 The performance of the Li-ion battery under tensile

Kang, Jin Sung

2012-01-01T23:59:59.000Z

80

Fabricating Genetically Engineered High-Power Lithium-Ion Batteries Using Multiple Virus Genes  

Science Journals Connector (OSTI)

...system) and a photograph of the battery used to power a green LED...electrode in a lithium-ion battery using lithium metal foil as...nanowires as a lithium-ion battery cathode was evaluated (Fig...expected to bind favorably to the graphene surface via {pi}-stacking...

Yun Jung Lee; Hyunjung Yi; Woo-Jae Kim; Kisuk Kang; Dong Soo Yun; Michael S. Strano; Gerbrand Ceder; Angela M. Belcher

2009-05-22T23:59:59.000Z

Note: This page contains sample records for the topic "lithium ion nano" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

Comparison of Cycling Performance of Lithium Ion Cell Anode Graphites  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Comparison of Cycling Performance of Lithium Ion Cell Anode Graphites Comparison of Cycling Performance of Lithium Ion Cell Anode Graphites Title Comparison of Cycling Performance of Lithium Ion Cell Anode Graphites Publication Type Journal Article Year of Publication 2012 Authors Ridgway, Paul L., Honghe Zheng, A. F. Bello, Xiangyun Song, Shidi Xun, Jin Chong, and Vincent S. Battaglia Journal Journal of The Electrochemical Society Volume 159 Issue 5 Pagination A520 Date Published 2012 ISSN 00134651 Abstract Battery grade graphite products from major suppliers to the battery industry were evaluated in 2325 coin cells with lithium counter electrodes. First and ongoing cycle efficiency, total and reversible capacity, cycle life and discharge rate performance were measured to compare these anode materials. We then ranked the graphites using a formula which incorporates these performance measures to estimate the cost of the overall system, relative to the cost of a system using MCMB. This analysis indicates that replacing MCMB with CCP-G8 (Conoco Phillips) would add little to no cost, whereas each of the other graphites would lead to a more costly system. Therefore we chose CCP-G8 as the new baseline graphite for the BATT program.

82

A Better Anode Design to Improve Lithium-Ion Batteries  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

A Better Anode Design to Improve Lithium-Ion Batteries Print A Better Anode Design to Improve Lithium-Ion Batteries Print Lithium-ion batteries are in smart phones, laptops, most other consumer electronics, and the newest electric cars. Good as these batteries are, the need for energy storage in batteries is surpassing current technologies. In a lithium-ion battery, charge moves from the cathode to the anode, a critical component for storing energy. A team of Berkeley Lab scientists has designed a new kind of anode that absorbs eight times the lithium of current designs, and has maintained its greatly increased energy capacity after more than a year of testing and many hundreds of charge-discharge cycles. Cyclical Science Succeeds The anode achievement described in this highlight provides a rare scientific showcase, combining advanced tools of synthesis, characterization, and simulation in a novel approach to materials development. Gao Liu's original research team, part of Berkeley Lab's Environmental Energy Technologies Division (EETD), got the ball rolling by designing the original series of polyfluorene-based conducting polymers. Then, Wanli Yang of the ALS suggested soft x-ray absorption spectroscopy to determine their key electronic properties. To better understand these results, and their relevance to the conductivity of the polymer, the growing team sought a theoretical explanation from Lin-Wang Wang of Berkeley Lab's Materials Sciences Division (MSD). By conducting calculations on the promising polymers at Berkeley Lab's National Energy Research Scientific Computing Center (NERSC), the team gained insight into what was really happening in the PF with the carbonyl functional group, singling it out for further development.

83

A Better Anode Design to Improve Lithium-Ion Batteries  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

A Better Anode Design to Improve Lithium-Ion Batteries Print A Better Anode Design to Improve Lithium-Ion Batteries Print Lithium-ion batteries are in smart phones, laptops, most other consumer electronics, and the newest electric cars. Good as these batteries are, the need for energy storage in batteries is surpassing current technologies. In a lithium-ion battery, charge moves from the cathode to the anode, a critical component for storing energy. A team of Berkeley Lab scientists has designed a new kind of anode that absorbs eight times the lithium of current designs, and has maintained its greatly increased energy capacity after more than a year of testing and many hundreds of charge-discharge cycles. Cyclical Science Succeeds The anode achievement described in this highlight provides a rare scientific showcase, combining advanced tools of synthesis, characterization, and simulation in a novel approach to materials development. Gao Liu's original research team, part of Berkeley Lab's Environmental Energy Technologies Division (EETD), got the ball rolling by designing the original series of polyfluorene-based conducting polymers. Then, Wanli Yang of the ALS suggested soft x-ray absorption spectroscopy to determine their key electronic properties. To better understand these results, and their relevance to the conductivity of the polymer, the growing team sought a theoretical explanation from Lin-Wang Wang of Berkeley Lab's Materials Sciences Division (MSD). By conducting calculations on the promising polymers at Berkeley Lab's National Energy Research Scientific Computing Center (NERSC), the team gained insight into what was really happening in the PF with the carbonyl functional group, singling it out for further development.

84

A Better Anode Design to Improve Lithium-Ion Batteries  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Better Anode Design to Improve Lithium-Ion Batteries Print Better Anode Design to Improve Lithium-Ion Batteries Print Lithium-ion batteries are in smart phones, laptops, most other consumer electronics, and the newest electric cars. Good as these batteries are, the need for energy storage in batteries is surpassing current technologies. In a lithium-ion battery, charge moves from the cathode to the anode, a critical component for storing energy. A team of Berkeley Lab scientists has designed a new kind of anode that absorbs eight times the lithium of current designs, and has maintained its greatly increased energy capacity after more than a year of testing and many hundreds of charge-discharge cycles. Cyclical Science Succeeds The anode achievement described in this highlight provides a rare scientific showcase, combining advanced tools of synthesis, characterization, and simulation in a novel approach to materials development. Gao Liu's original research team, part of Berkeley Lab's Environmental Energy Technologies Division (EETD), got the ball rolling by designing the original series of polyfluorene-based conducting polymers. Then, Wanli Yang of the ALS suggested soft x-ray absorption spectroscopy to determine their key electronic properties. To better understand these results, and their relevance to the conductivity of the polymer, the growing team sought a theoretical explanation from Lin-Wang Wang of Berkeley Lab's Materials Sciences Division (MSD). By conducting calculations on the promising polymers at Berkeley Lab's National Energy Research Scientific Computing Center (NERSC), the team gained insight into what was really happening in the PF with the carbonyl functional group, singling it out for further development.

85

STUDIES ON TWO CLASSES OF POSITIVE ELECTRODE MATERIALS FOR LITHIUM-ION BATTERIES  

E-Print Network [OSTI]

A new cathode material for batteries of high energy density.art positive electrode materials for high-energy lithium ionwhen exploring new materials for high-energy lithium ion

Wilcox, James D.

2010-01-01T23:59:59.000Z

86

N-Doped Graphene–VO2(B) Nanosheet-Built 3D Flower Hybrid for Lithium Ion Battery  

Science Journals Connector (OSTI)

N-Doped Graphene–VO2(B) Nanosheet-Built 3D Flower Hybrid for Lithium Ion Battery ... Graphene-based electrode materials for rechargeable lithium batteries ...

C. Nethravathi; Catherine R. Rajamathi; Michael Rajamathi; Ujjal K. Gautam; Xi Wang; Dmitri Golberg; Yoshio Bando

2013-03-13T23:59:59.000Z

87

Microsoft Word - Nano-sized Ion Exchange Particles.docx  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Reducing Ion Exchange Particles to Nano-Size Shows Big Potential Reducing Ion Exchange Particles to Nano-Size Shows Big Potential AIKEN, S.C. (January 30, 2012) - Sometimes bigger isn't better. Researchers at the U.S. Department of Energy's Savannah River National Laboratory have successfully shown that they can replace useful little particles of monosodium titanate (MST) with even tinier nano-sized particles, making them even more useful for a variety of applications. MST is an ion exchange material used to decontaminate radioactive and industrial wastewater solutions, and has been shown to be an effective way to deliver metals into living cells for some types of medical treatment. Typically, MST, and a modified form known as mMST developed by SRNL and Sandia National Laboratories, are in the form of fine powders, spherically-shaped particles about 1 to 10 microns in diameter

88

Batteries - EnerDel Lithium-Ion Battery  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

EnerDel/Argonne Advanced High-Power Battery for Hybrid Electric Vehicles EnerDel/Argonne Advanced High-Power Battery for Hybrid Electric Vehicles EnerDel lithium-ion battery The EnerDel Lithium-Ion Battery The EnerDel/Argonne lithium-ion battery is a highly reliable and extremely safe device that is lighter in weight, more compact, more powerful and longer-lasting than the nickel-metal hydride (Ni-MH) batteries in today's hybrid electric vehicles (HEVs). The battery is expected to meet the U.S. Advanced Battery Consortium's $500 manufacturing price criterion for a 25-kilowatt battery, which is almost a sixth of the cost to make comparable Ni-MH batteries intended for use in HEVs. It is also less expensive to make than comparable Li-ion batteries. That cost reduction is expected to help make HEVs more competitive in the marketplace and enable consumers to receive an immediate payback in

89

Ground state hyperfine structure in muonic lithium ions  

E-Print Network [OSTI]

On the basis of perturbation theory in fine structure constant alpha and the ratio of electron to muon masses we calculate one-loop vacuum polarization, electron vertex corrections, nuclear structure and recoil corrections to hyperfine splitting of the ground state in muonic lithium ions $(\\mu\\ e\\ ^6_3Li)^+$ and $(\\mu\\ e\\ ^7_3Li)^+$. We obtain total results for the ground state small hyperfine splittings in $(\\mu\\ e\\ ^6_3Li)^+$ $\\Delta\

Martynenko, A P

2014-01-01T23:59:59.000Z

90

Ground state hyperfine structure in muonic lithium ions  

E-Print Network [OSTI]

On the basis of perturbation theory in fine structure constant alpha and the ratio of electron to muon masses we calculate one-loop vacuum polarization, electron vertex corrections, nuclear structure and recoil corrections to hyperfine splitting of the ground state in muonic lithium ions $(\\mu\\ e\\ ^6_3Li)^+$ and $(\\mu\\ e\\ ^7_3Li)^+$. We obtain total results for the ground state small hyperfine splittings in $(\\mu\\ e\\ ^6_3Li)^+$ $\\Delta\

A. P. Martynenko; A. A. Ulybin

2014-11-12T23:59:59.000Z

91

NANOWIRE CATHODE MATERIAL FOR LITHIUM-ION BATTERIES  

SciTech Connect (OSTI)

This project involved the synthesis of nanowire ã-MnO2 and characterization as cathode material for high-power lithium-ion batteries for EV and HEV applications. The nanowire synthesis involved the edge site decoration nanowire synthesis developed by Dr. Reginald Penner at UC Irvine (a key collaborator in this project). Figure 1 is an SEM image showing ã-MnO2 nanowires electrodeposited on highly oriented pyrolytic graphite (HOPG) electrodes. This technique is unique to other nanowire template synthesis techniques in that it produces long (>500 um) nanowires which could reduce or eliminate the need for conductive additives due to intertwining of fibers. Nanowire cathode for lithium-ion batteries with surface areas 100 times greater than conventional materials can enable higher power batteries for electric vehicles (EVs) and hybrid electric vehicles (HEVs). The synthesis of the ã-MnO2 nanowires was successfully achieved. However, it was not found possible to co-intercalate lithium directly in the nanowire synthesis. Based on input from proposal reviewers, the scope of the project was altered to attempt the conversion into spinel LiMn2O4 nanowire cathode material by solid state reaction of the ã-MnO2 nanowires with LiNO3 at elevated temperatures. Attempts to perform the conversion on the graphite template were unsuccessful due to degradation of the graphite apparently caused by oxidative attack by LiNO3. Emphasis then shifted to quantitative removal of the nanowires from the graphite, followed by the solid state reaction. Attempts to quantitatively remove the nanowires by several techniques were unsatisfactory due to co-removal of excess graphite or poor harvesting of nanowires. Intercalation of lithium into ã-MnO2 electrodeposited onto graphite was demonstrated, showing a partial demonstration of the ã-MnO2 material as a lithium-ion battery cathode material. Assuming the issues of nanowires removal can be solved, the technique does offer potential for creating high-power lithium-ion battery cathode needed for advanced EV and HEVs. Several technical advancements will still be required to meet this goal, and are likely topics for future SBIR feasibility studies.

John Olson, PhD

2004-07-21T23:59:59.000Z

92

Recovery of lithium and cobalt from waste lithium ion batteries of mobile phone  

SciTech Connect (OSTI)

Graphical abstract: Recovery of valuable metals from scrap batteries of mobile phone. - Highlights: • Recovery of Co and Li from spent LIBs was performed by hydrometallurgical route. • Under the optimum condition, 99.1% of lithium and 70.0% of cobalt were leached. • The mechanism of the dissolution of lithium and cobalt was studied. • Activation energy for lithium and cobalt were found to be 32.4 kJ/mol and 59.81 kJ/mol, respectively. • After metal recovery, residue was washed before disposal to the environment. - Abstract: In view of the stringent environmental regulations, availability of limited natural resources and ever increasing need of alternative energy critical elements, an environmental eco-friendly leaching process is reported for the recovery of lithium and cobalt from the cathode active materials of spent lithium-ion batteries of mobile phones. The experiments were carried out to optimize the process parameters for the recovery of lithium and cobalt by varying the concentration of leachant, pulp density, reductant volume and temperature. Leaching with 2 M sulfuric acid with the addition of 5% H{sub 2}O{sub 2} (v/v) at a pulp density of 100 g/L and 75 °C resulted in the recovery of 99.1% lithium and 70.0% cobalt in 60 min. H{sub 2}O{sub 2} in sulfuric acid solution acts as an effective reducing agent, which enhance the percentage leaching of metals. Leaching kinetics of lithium in sulfuric acid fitted well to the chemical controlled reaction model i.e. 1 ? (1 ? X){sup 1/3} = k{sub c}t. Leaching kinetics of cobalt fitted well to the model ‘ash diffusion control dense constant sizes spherical particles’ i.e. 1 ? 3(1 ? X){sup 2/3} + 2(1 ? X) = k{sub c}t. Metals could subsequently be separated selectively from the leach liquor by solvent extraction process to produce their salts by crystallization process from the purified solution.

Jha, Manis Kumar, E-mail: mkjha@nmlindia.org; Kumari, Anjan; Jha, Amrita Kumari; Kumar, Vinay; Hait, Jhumki; Pandey, Banshi Dhar

2013-09-15T23:59:59.000Z

93

Intercalation dynamics in lithium-ion batteries  

E-Print Network [OSTI]

A new continuum model has been proposed by Singh, Ceder, and Bazant for the ion intercalation dynamics in a single crystal of rechargeable-battery electrode materials. It is based on the Cahn-Hilliard equation coupled to ...

Burch, Damian

2009-01-01T23:59:59.000Z

94

Improved Electrode Materials in Lithium-Ion (Li-ion) Batteries: Innovation  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Improved Electrode Materials in Lithium-Ion (Li-ion) Batteries: Innovation Improved Electrode Materials in Lithium-Ion (Li-ion) Batteries: Innovation and Optimization Speaker(s): Jordi Cabana-Jimenez Date: January 14, 2008 - 12:00pm Location: 90-3122 Seminar Host/Point of Contact: Venkat Srinivasan The advent of Li-ion batteries has played a central role in the impressive development of portable digital and wireless technology. Such success has triggered further efforts to utilize them as key components in other applications with an even larger impact on society, which include electric vehicles and energy backup for renewable energy sources. However, several challenges need to be met before these expectations can be realized, as Li-ion batteries currently do not meet the power and energy density requirements of these devices. New and better materials for the electrodes

95

Tennessee, Pennsylvania: Porous Power Technologies Improves Lithium Ion Battery, Wins R&D 100 Award  

Office of Energy Efficiency and Renewable Energy (EERE)

Porous Power Technologies, partnered with Oak Ridge National Laboratory (ORNL), developed SYMMETRIX HPX-F, a nanocomposite separator for improved lithium-ion battery technology.

96

E-Print Network 3.0 - advanced lithium-ion batteries Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

being undertaken at ISEM... .isem.uow.edu.au 12;Project Lithium ion batteries for Electric Vehicles (EVs) Aims To provide novel solutions... to enhance the performance ......

97

Post-Test Analysis of Lithium-Ion Battery Materials at Argonne...  

Broader source: Energy.gov (indexed) [DOE]

not contain any proprietary, confidential, or otherwise restricted information Post-test Analysis of Lithium-Ion Battery Materials at Argonne National Laboratory Overview...

98

Post-Test Analysis of Lithium-Ion Battery Materials at Argonne...  

Broader source: Energy.gov (indexed) [DOE]

DC This presentation contains no proprietary information. Project ID: ES166 Post-test Analysis of Lithium-Ion Battery Materials at Argonne National Laboratory Overview...

99

Graphene as a high-capacity anode material for lithium ion batteries  

Science Journals Connector (OSTI)

Graphene was produced via a soft chemistry synthetic route for lithium ion battery applications. The sample was characterized by X ... electron microscopy, respectively. The electrochemical performances of graphene

Hongdong Liu ???; Jiamu Huang ???; Xinlu Li…

2013-04-01T23:59:59.000Z

100

Development of Novel Nanomaterials Based on Silicon and Graphene for Lithium Ion Battery Applications.  

E-Print Network [OSTI]

??Electrochemical energy storage is one of the important strategies to address the strong demand for clean energy. Rechargeable lithium ion batteries (LIBs) are one of… (more)

Hu, Yuhai

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "lithium ion nano" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

Hybrid neural net and physics based model of a lithium ion battery.  

E-Print Network [OSTI]

??Lithium ion batteries have become one of the most popular types of battery in consumer electronics as well as aerospace and automotive applications. The efficient… (more)

Refai, Rehan

2011-01-01T23:59:59.000Z

102

Innovative Manufacturing and Materials for Low-Cost Lithium-Ion...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Manufacturing and Materials for Low-Cost Lithium-Ion Batteries 2012 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer...

103

Exploring the interaction between lithium ion and defective graphene surface using dispersion corrected DFT studies  

SciTech Connect (OSTI)

To analyze the lithium ion interaction with realistic graphene surfaces, we carried out dispersion corrected DFT-D3 studies on graphene with common point defects and chemisorbed oxygen containing functional groups along with defect free graphene surface. Our study reveals that, the interaction between lithium ion (Li+) and graphene is mainly through the delocalized ? electron of pure graphene layer. However, the oxygen containing functional groups pose high adsorption energy for lithium ion due to the Li-O ionic bond formation. Similarly, the point defect groups interact with lithium ion through possible carbon dangling bonds and/or cation-? type interactions. Overall these defect sites render a preferential site for lithium ions compared with pure graphene layer. Based on these findings, the role of graphene surface defects in lithium battery performance were discussed.

Vijayakumar, M.; Hu, Jian Z.

2013-10-15T23:59:59.000Z

104

Towards a lithium-ion fiber battery  

E-Print Network [OSTI]

One of the key objectives in the realm of flexible electronics and flexible power sources is to achieve large-area, low-cost, scalable production of flexible systems. In this thesis we propose a new Li-ion battery architecture ...

Grena, Benjamin (Benjamin Jean-Baptiste)

2013-01-01T23:59:59.000Z

105

Laser-Cooled Lithium Atoms: A New Source for Focused Ion Beams  

E-Print Network [OSTI]

Laser-Cooled Lithium Atoms: A New Source for Focused Ion Beams P R O J E C T L E A D E R : Jabez Mc) to provide ions for a focused ion beam (FIB) capable of non-destructive imaging. K E Y A C C O M P L I S H M mounted on a commercial focused ion beam system, creating the world's first lithium ion microscope

106

Abnormal Cyclibility in Ni@Graphene Core–Shell and Yolk–Shell Nanostructures for Lithium Ion Battery Anodes  

Science Journals Connector (OSTI)

Abnormal Cyclibility in Ni@Graphene Core–Shell and Yolk–Shell Nanostructures for Lithium Ion Battery Anodes ... A new graphene-based hybrid nanostructure is designed for anode materials in lithium-ion batteries. ...

Huawei Song; Hao Cui; Chengxin Wang

2014-07-08T23:59:59.000Z

107

Composition-Tailored Synthesis of Gradient Transition Metal Precursor Particles for Lithium-Ion Battery Cathode Materials  

Science Journals Connector (OSTI)

Composition-Tailored Synthesis of Gradient Transition Metal Precursor Particles for Lithium-Ion Battery Cathode Materials ... Collected particles were lithiated, and one promising material was evaluated as the active cathode component in a lithium-ion battery. ...

Gary M. Koenig, Jr.; Ilias Belharouak; Haixai Deng; Yang-Kook Sun; Khalil Amine

2011-03-09T23:59:59.000Z

108

Prediction of Multi-Physics Behaviors of Large Lithium-Ion Batteries During Internal and External Short Circuit (Presentation)  

SciTech Connect (OSTI)

This presentation describes the multi-physics behaviors of internal and external short circuits in large lithium-ion batteries.

Kim, G. H.; Lee, K. J.; Chaney, L.; Smith, K.; Darcy, E.; Pesaran, A.; Darcy, E.

2010-11-01T23:59:59.000Z

109

Graphene–Nanotube–Iron Hierarchical Nanostructure as Lithium Ion Battery Anode  

Science Journals Connector (OSTI)

Graphene–Nanotube–Iron Hierarchical Nanostructure as Lithium Ion Battery Anode ... In this study, we report a novel route via microwave irradiation to synthesize a bio-inspired hierarchical graphene–nanotube–iron three-dimensional nanostructure as an anode material in lithium-ion batteries. ...

Si-Hwa Lee; Vadahanambi Sridhar; Jung-Hwan Jung; Kaliyappan Karthikeyan; Yun-Sung Lee; Rahul Mukherjee; Nikhil Koratkar; Il-Kwon Oh

2013-04-03T23:59:59.000Z

110

Solution-Grown Silicon Nanowires for Lithium-Ion Battery Anodes  

E-Print Network [OSTI]

interest in using nanomaterials for advanced lithium-ion battery electrodes, par- ticularly for increasingSolution-Grown Silicon Nanowires for Lithium-Ion Battery Anodes Candace K. Chan, Reken N. Patel storage capacity (theoretical values of 4200 vs 372 mAh/g for graphite). How- ever, the insertion

Cui, Yi

111

Diagnostic Characterization of High-Power Lithium-Ion Batteries For Use in Hybrid Electric Vehicles  

E-Print Network [OSTI]

Diagnostic Characterization of High-Power Lithium-Ion Batteries For Use in Hybrid Electric Vehicles and electric vehicles due to their relatively high specific energy and specific power. The Advanced Technology of lithium-ion batteries for hybrid electric vehicle (HEV) applications. The ATD Program is a joint effort

112

Impedance Analysis of Silicon Nanowire Lithium Ion Battery Anodes Riccardo Ruffo,  

E-Print Network [OSTI]

resistance and solid state diffusion through the bulk of the nanowires. The surface process is dominatedImpedance Analysis of Silicon Nanowire Lithium Ion Battery Anodes Riccardo Ruffo, Seung Sae Hong as a high-capacity anode in a lithium ion battery. The ac response was measured by using impedance

Cui, Yi

113

Power Capability Estimation Accounting for Thermal and Electical Contraints of Lithium-Ion Batteries.  

E-Print Network [OSTI]

??Lithium-ion (Li-ion) batteries have become one of the most critical components in vehicle electrification due to their high specific power and energy density. The performance… (more)

Kim, Youngki

2014-01-01T23:59:59.000Z

114

Electronically conductive polymer binder for lithium-ion battery electrode  

DOE Patents [OSTI]

A family of carboxylic acid group containing fluorene/fluorenon copolymers is disclosed as binders of silicon particles in the fabrication of negative electrodes for use with lithium ion batteries. These binders enable the use of silicon as an electrode material as they significantly improve the cycle-ability of silicon by preventing electrode degradation over time. In particular, these polymers, which become conductive on first charge, bind to the silicon particles of the electrode, are flexible so as to better accommodate the expansion and contraction of the electrode during charge/discharge, and being conductive promote the flow battery current.

Liu, Gao; Xun, Shidi; Battaglia, Vincent S; Zheng, Honghe

2014-10-07T23:59:59.000Z

115

Improved Lithium Ion Behavior Properties of TiO2@Graphitic-like Carbon Core@Shell Nanostructure  

E-Print Network [OSTI]

Improved Lithium Ion Behavior Properties of TiO2@Graphitic-like Carbon Core@Shell Nanostructure Min Intercalation Electrochemistry Capacitance Lithium Ion batteries A B S T R A C T We demonstrate TiO2@graphitic on the electrode surface and enhanced lithium ion intercalation, leading to lower charge transfer resistance

Cao, Guozhong

116

Mn3O4-Graphene Hybrid as a High-Capacity Anode Material for Lithium Ion Hailiang Wang,,  

E-Print Network [OSTI]

Mn3O4-Graphene Hybrid as a High-Capacity Anode Material for Lithium Ion Batteries Hailiang Wang hybrid materials of Mn3O4 nanoparticles on reduced graphene oxide (RGO) sheets for lithium ion battery-cost, and environ- mentally friendly anode for lithium ion batteries. Our growth-on- graphene approach should offer

Cui, Yi

117

Nano-sized structured layered positive electrode materials to enable high energy density and high rate capability lithium batteries  

DOE Patents [OSTI]

Nano-sized structured dense and spherical layered positive active materials provide high energy density and high rate capability electrodes in lithium-ion batteries. Such materials are spherical second particles made from agglomerated primary particles that are Li.sub.1+.alpha.(Ni.sub.xCo.sub.yMn.sub.z).sub.1-tM.sub.tO.sub.2-dR.sub.d- , where M is selected from can be Al, Mg, Fe, Cu, Zn, Cr, Ag, Ca, Na, K, In, Ga, Ge, V, Mo, Nb, Si, Ti, Zr, or a mixture of any two or more thereof, R is selected from F, Cl, Br, I, H, S, N, or a mixture of any two or more thereof, and 0.ltoreq..alpha..ltoreq.0.50; 0

Deng, Haixia; Belharouak, Ilias; Amine, Khalil

2012-10-02T23:59:59.000Z

118

Costs of lithium-ion batteries for vehicles  

SciTech Connect (OSTI)

One of the most promising battery types under development for use in both pure electric and hybrid electric vehicles is the lithium-ion battery. These batteries are well on their way to meeting the challenging technical goals that have been set for vehicle batteries. However, they are still far from achieving the current cost goals. The Center for Transportation Research at Argonne National Laboratory undertook a project for the US Department of Energy to estimate the costs of lithium-ion batteries and to project how these costs might change over time, with the aid of research and development. Cost reductions could be expected as the result of material substitution, economies of scale in production, design improvements, and/or development of new material supplies. The most significant contributions to costs are found to be associated with battery materials. For the pure electric vehicle, the battery cost exceeds the cost goal of the US Advanced Battery Consortium by about $3,500, which is certainly enough to significantly affect the marketability of the vehicle. For the hybrid, however, the total cost of the battery is much smaller, exceeding the cost goal of the Partnership for a New Generation of Vehicles by only about $800, perhaps not enough to deter a potential buyer from purchasing the power-assist hybrid.

Gaines, L.; Cuenca, R.

2000-08-21T23:59:59.000Z

119

High-Power Electrodes for Lithium-Ion Batteries | U.S. DOE Office of  

Office of Science (SC) Website

High-Power Electrodes for Lithium-Ion High-Power Electrodes for Lithium-Ion Batteries Energy Frontier Research Centers (EFRCs) EFRCs Home Centers Research Science Highlights Highlight Archives News & Events Publications Contact BES Home 04.27.12 High-Power Electrodes for Lithium-Ion Batteries Print Text Size: A A A RSS Feeds FeedbackShare Page Scientific Achievement For novel 3-D anodes made of sheets of carbon (graphene) and silicon nanoparticles, transport studies found much shorter lithium diffusion paths throughout the electrode and fast lithiation/delithiation of the nanoparticles. Significance and Impact This anode design holds a greater charge than conventional lithium-ion anodes and charges/discharges more rapidly while maintaining mechanical stability. Research Details Electrochemical studies: 83% of theoretical capacity (3200 mAh g-1)

120

Better Lithium-Ion Batteries Are On The Way From Berkeley Lab  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Lithium-Ion Lithium-Ion Batteries A Better Lithium-ion Battery on the Way Simulations Reveal How New Polymer Absorbs Eight Times the Lithium of Current Designs September 23, 2011 Paul Preuss, +1 510 486 6249, paul_preuss@lbl.gov traditional-new.jpg At left, the traditional approach to composite anodes using silicon (blue spheres) for higher energy capacity has a polymer binder such as PVDF (light brown) plus added particles of carbon to conduct electricity (dark brown spheres). Silicon swells and shrinks while acquiring and releasing lithium ions, and repeated swelling and shrinking eventually break contacts among the conducting carbon particles. At right, the new Berkeley Lab polymer (purple) is itself conductive and continues to bind tightly to the silicon particles despite repeated swelling and shrinking.

Note: This page contains sample records for the topic "lithium ion nano" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

Missouri Lithium-Ion Battery Company Hosts Tour With U.S. Deputy Secretary  

Broader source: Energy.gov (indexed) [DOE]

Missouri Lithium-Ion Battery Company Hosts Tour With U.S. Deputy Missouri Lithium-Ion Battery Company Hosts Tour With U.S. Deputy Secretary of Energy Poneman Missouri Lithium-Ion Battery Company Hosts Tour With U.S. Deputy Secretary of Energy Poneman February 9, 2012 - 4:25pm Addthis Washington, D.C. - Today, U.S. Deputy Secretary of Energy Daniel Poneman toured Dow Kokam's new global battery research and development center, located in Lee's Summit, Missouri, outside of Kansas City, to highlight America's investments in cutting-edge energy innovations that are laying the building blocks for an American economy built to last. The R&D center aims to bring next-generation lithium-ion battery solutions to the market faster, increase battery performance and reduce their overall cost. Lithium batteries are used in a variety of everyday products from laptops to cell

122

Missouri Lithium-Ion Battery Company Hosts Tour With U.S. Deputy Secretary  

Broader source: Energy.gov (indexed) [DOE]

Missouri Lithium-Ion Battery Company Hosts Tour With U.S. Deputy Missouri Lithium-Ion Battery Company Hosts Tour With U.S. Deputy Secretary of Energy Poneman Missouri Lithium-Ion Battery Company Hosts Tour With U.S. Deputy Secretary of Energy Poneman February 9, 2012 - 4:25pm Addthis Washington, D.C. - Today, U.S. Deputy Secretary of Energy Daniel Poneman toured Dow Kokam's new global battery research and development center, located in Lee's Summit, Missouri, outside of Kansas City, to highlight America's investments in cutting-edge energy innovations that are laying the building blocks for an American economy built to last. The R&D center aims to bring next-generation lithium-ion battery solutions to the market faster, increase battery performance and reduce their overall cost. Lithium batteries are used in a variety of everyday products from laptops to cell

123

Development of High Capacity Anode for Li-ion Batteries | Department...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Anode Structures: Overview of New DOE BATT Anode Projects Hybrid Nano Carbon FiberGraphene Platelet-Based High-Capacity Anodes for Lithium Ion Batteries Hybrid Nano Carbon...

124

Molybdenum nitride/nitrogen-doped graphene hybrid material for lithium storage in lithium ion batteries  

Science Journals Connector (OSTI)

Abstract Molybdenum nitride and nitrogen-doped graphene nanosheets (MoN/GNS) hybrid materials are synthesized by a simple hydrothermal method combined with a heat treatment at 800 °C under an ammonia atmosphere. It is found by scanning and transmission electron microscopy that MoN nanoparticles ranging from 20 to 40 nm in diameter are homogeneously anchored to GNS. The electrochemical performance of MoN/GNS as a possible anode material for Li-ion batteries is investigated. Galvanostatic charge/discharge experiments reveal that the hybrid materials exhibit an enhanced lithium storage capacity and excellent rate capacity as a result of its efficient electronic and ionic mixed conducting network. The electrochemical results demonstrate that the weight ratio of GNS and MoN had significant effect on the electrochemical performance.

Botao Zhang; Guanglei Cui; Kejun Zhang; Lixue Zhang; Pengxian Han; Shanmu Dong

2014-01-01T23:59:59.000Z

125

Fact Sheet: Lithium-Ion Batteries for Stationary Energy Storage (October  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Fact Sheet: Lithium-Ion Batteries for Stationary Energy Storage Fact Sheet: Lithium-Ion Batteries for Stationary Energy Storage (October 2012) Fact Sheet: Lithium-Ion Batteries for Stationary Energy Storage (October 2012) DOE's Energy Storage Program is funding research to develop longer-lifetime, lower-cost Li-ion batteries. Researchers at Pacific Northwest National Laboratory are investigating cost-effective electrode materials and electrolytes, as well as novel low-cost synthesis approaches for making highly efficient electrode materials using additives such as graphine, oleic acid, and paraffin. To address safety issues, researchers will also identify materials with better thermal stability. Fact Sheet: Lithium-Ion Batteries for Stationary Energy Storage (October 2012) More Documents & Publications Battery SEAB Presentation

126

Hybrid of Co3Sn2@Co Nanoparticles and Nitrogen-Doped Graphene as a Lithium Ion Battery Anode  

Science Journals Connector (OSTI)

Hybrid of Co3Sn2@Co Nanoparticles and Nitrogen-Doped Graphene as a Lithium Ion Battery Anode ... VO2 Nanowires Assembled into Hollow Microspheres for High-Rate and Long-Life Lithium Batteries ...

Nasir Mahmood; Chenzhen Zhang; Fei Liu; Jinghan Zhu; Yanglong Hou

2013-10-16T23:59:59.000Z

127

Secretary Chu Celebrates Expansion of Lithium-Ion Battery Production in  

Broader source: Energy.gov (indexed) [DOE]

Celebrates Expansion of Lithium-Ion Battery Celebrates Expansion of Lithium-Ion Battery Production in North Carolina Secretary Chu Celebrates Expansion of Lithium-Ion Battery Production in North Carolina July 26, 2011 - 3:15pm Addthis Secretary Chu joins local officials and dignitaries for Celgard's ribbon-cutting. | Photo courtesy of Celgard Secretary Chu joins local officials and dignitaries for Celgard's ribbon-cutting. | Photo courtesy of Celgard Niketa Kumar Niketa Kumar Public Affairs Specialist, Office of Public Affairs What are the key facts? Celgard received $49 million in Recovery Act funding to help expand its Charlotte operations and build a new lithium-ion battery separator facility in Concord. With the help of Recovery Act-funded expansions, Celgard expects to double its production capacity by 2012 and since January 2010, the company

128

Secretary Chu Celebrates Expansion of Lithium-Ion Battery Production in  

Broader source: Energy.gov (indexed) [DOE]

Celebrates Expansion of Lithium-Ion Battery Celebrates Expansion of Lithium-Ion Battery Production in North Carolina Secretary Chu Celebrates Expansion of Lithium-Ion Battery Production in North Carolina July 26, 2011 - 3:15pm Addthis Secretary Chu joins local officials and dignitaries for Celgard's ribbon-cutting. | Photo courtesy of Celgard Secretary Chu joins local officials and dignitaries for Celgard's ribbon-cutting. | Photo courtesy of Celgard Niketa Kumar Niketa Kumar Public Affairs Specialist, Office of Public Affairs What are the key facts? Celgard received $49 million in Recovery Act funding to help expand its Charlotte operations and build a new lithium-ion battery separator facility in Concord. With the help of Recovery Act-funded expansions, Celgard expects to double its production capacity by 2012 and since January 2010, the company

129

An electrical network model for computing current distribution in a spirally wound lithium ion cell  

E-Print Network [OSTI]

Lithium ion batteries are the most viable option for electric vehicles but they still have significant limitations. Safety of these batteries is one of the concerns that need to be addressed when they are used in mainstream ...

Patnaik, Somani

2012-01-01T23:59:59.000Z

130

Vehicle Technologies Office Merit Review 2014: Daikin Advanced Lithium Ion Battery Technology – High Voltage Electrolyte  

Broader source: Energy.gov [DOE]

Presentation given by Daikin America at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about Daikin advanced lithium ion...

131

Cathode materials for lithium ion batteries prepared by sol-gel methods  

Science Journals Connector (OSTI)

Improving the preparation technology and electrochemical performance of cathode materials for lithium ion batteries is a current major focus of research and development in the areas of materials, power sources...

H. Liu; Y. P. Wu; E. Rahm; R. Holze; H. Q. Wu

2004-06-01T23:59:59.000Z

132

Graphene-based composites as cathode materials for lithium ion batteries  

Science Journals Connector (OSTI)

Owing to the superior mechanical, thermal, and electrical properties, graphene was a perfect candidate to improve the performance of lithium ion batteries. Herein, we review the recent advances in graphene-based composites and their application as cathode ...

Libao Chen; Ming Zhang; Weifeng Wei

2013-01-01T23:59:59.000Z

133

Development of a representative volume element of lithium-ion batteries for thermo-mechanical integrity  

E-Print Network [OSTI]

The importance of Lithium-ion batteries continues to grow with the introduction of more electronic devices, electric cars, and energy storage. Yet the optimization approach taken by the manufacturers and system designers ...

Hill, Richard Lee, Sr

2011-01-01T23:59:59.000Z

134

Design of a testing device for quasi-confined compression of lithium-ion battery cells  

E-Print Network [OSTI]

The Impact and Crashworthiness Laboratory at MIT has formed a battery consortium to promote research concerning the crash characteristics of new lithium-ion battery technologies as used in automotive applications. Within ...

Roselli, Eric (Eric J.)

2011-01-01T23:59:59.000Z

135

Graphene sheets decorated with ZnO nanoparticles as anode materials for lithium ion batteries  

Science Journals Connector (OSTI)

ZnO/graphene composites were synthesized using a facile solution- ... 4 nm were densely and homogeneously deposited on graphene sheets. As the anode material for the lithium ion batteries, the ZnO/graphene compos...

Ling-Li Xu; Shao-Wei Bian; Kang-Lin Song

2014-09-01T23:59:59.000Z

136

Cobalt oxide–graphene nanocomposite as anode materials for lithium-ion batteries  

Science Journals Connector (OSTI)

Composites of Co3O4/graphene nanosheets are prepared and characterized by X- ... behavior as anode materials of lithium-ion rechargeable batteries is investigated by galvanostatic discharge/charge measurements...

Guiling Wang; Jincheng Liu; Sheng Tang…

2011-12-01T23:59:59.000Z

137

TiO2/graphene nanocomposites as anode materials for high rate lithium-ion batteries  

Science Journals Connector (OSTI)

A simple strategy to prepare a hybrid of nanocomposites of anatase TiO2/graphene nanosheets (GNS) as anode materials for lithium-ion batteries was reported. The morphology and crystal structure...2/GNS electrode ...

Yi-ping Tang ???; Shi-ming Wang ???; Xiao-xu Tan ???…

2014-05-01T23:59:59.000Z

138

Hierarchical 3D mesoporous silicon@graphene nanoarchitectures for lithium ion batteries with superior performance  

Science Journals Connector (OSTI)

Silicon has been recognized as the most promising anode material for high capacity lithium ion batteries. However, large volume variations during charge ... can be overcome by combination with well-organized graphene

Shuangqiang Chen; Peite Bao; Xiaodan Huang; Bing Sun; Guoxiu Wang

2014-01-01T23:59:59.000Z

139

The effect of graphene nanosheets as an additive for anode materials in lithium ion batteries  

Science Journals Connector (OSTI)

A small amount of graphene nanosheets was added to commercial graphite as an anode active material in lithium ion batteries and its effects were examined through a ... composite electrode containing 1 or 5 wt% graphene

Jae Hun Jeong; Dong-Won Jung; Byung-Sun Kong…

2011-11-01T23:59:59.000Z

140

Self-reactive rating of thermal runaway hazards on 18650 lithium-ion batteries  

Science Journals Connector (OSTI)

Vent sizing package 2 (VSP2) was used to measure the thermal hazard and runaway characteristics of 18650 lithium-ion batteries, which were manufactured by Sanyo Electric Co ... ., Ltd. Runaway reaction behaviors ...

C.-Y. Jhu; Y.-W. Wang; C.-Y. Wen…

2011-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "lithium ion nano" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

Evaluation of thermal hazard for commercial 14500 lithium-ion batteries  

Science Journals Connector (OSTI)

Commercial lithium-ion batteries ranged from different sizes, shapes, capacities, ... In this study, the worst scenarios on thermal runaway of four commercial batteries were conducted and compared. A customized-m...

Tsai-Ying Hsieh; Yih-Shing Duh…

2014-06-01T23:59:59.000Z

142

Comb-shaped single ion conductors based on polyacrylate ethers and lithium  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Comb-shaped single ion conductors based on polyacrylate ethers and lithium Comb-shaped single ion conductors based on polyacrylate ethers and lithium alkyl sulfonate Title Comb-shaped single ion conductors based on polyacrylate ethers and lithium alkyl sulfonate Publication Type Journal Article Year of Publication 2005 Authors Sun, Xiao-Guang, Jun Hou, and John B. Kerr Journal Electrochimica Acta Volume 50 Pagination 1139-1147 Keywords ionic conductivity, plasticizer, polyacrylate ethers, single ion conductor Abstract Comb-shaped single ion conductors have been synthesized by sulfonation of small molecule chloroethyleneglycols, which, after ion exchange to the Li+ salt were then converted to the acrylate by reaction with acryloyl chloride and copolymerized with polyethylene glycol monomethyl ether acrylate (Mn = 454, n = 8) (PAE8-co-E3SO3Li);

143

Simplified Heat Generation Model for Lithium ion battery used in Electric Vehicle  

Science Journals Connector (OSTI)

It is known that temperature variations inside a battery may greatly affect its performance, life, and reliability. In an effort to gain a better understanding of the heat generation in Lithium ion batteries, a simple heat generation models were constructed in order to predict the thermal behaviour of a battery pack. The Lithium ion battery presents in this paper is Lithium Iron Phosphate (LiFePO4). The results show that the model can be viewed as an acceptable approximation for the variation of the battery pack temperature at a continuous discharge current from data provided by the manufacturer and literature.

Nur Hazima Faezaa Ismail; Siti Fauziah Toha; Nor Aziah Mohd Azubir; Nizam Hanis Md Ishak; Mohd Khair Hassan; Babul Salam Ksm Ibrahim

2013-01-01T23:59:59.000Z

144

Co3O4/Carbon Aerogel Hybrids as Anode Materials for Lithium-Ion Batteries with Enhanced Electrochemical Properties  

Science Journals Connector (OSTI)

Co3O4/Carbon Aerogel Hybrids as Anode Materials for Lithium-Ion Batteries with Enhanced Electrochemical Properties ... A facile hydrothermal and sol–gel polymerization route was developed for large-scale fabrication of well-designed Co3O4 nanoparticles anchored carbon aerogel (CA) architecture hybrids as anode materials for lithium-ion batteries with improved electrochemical properties. ... carbon aerogel; oxide; hybrid; mesoporous structure; lithium-ion battery ...

Fengbin Hao; Zhiwei Zhang; Longwei Yin

2013-08-08T23:59:59.000Z

145

High-Energy Cathode Materials (Li2MnO3–LiMO2) for Lithium-Ion Batteries  

Science Journals Connector (OSTI)

High-Energy Cathode Materials (Li2MnO3–LiMO2) for Lithium-Ion Batteries ... Fabrication of Nitrogen-Doped Holey Graphene Hollow Microspheres and Their Use as an Active Electrode Material for Lithium Ion Batteries ... Li-rich materials are considered the most promising for Li-ion battery cathodes, as high energy densities can be achieved. ...

Haijun Yu; Haoshen Zhou

2013-03-28T23:59:59.000Z

146

Nanostructured Tin-Based Anodes for Lithium Ion Batteries with X-Ray Absorption Fine Structure Studies.  

E-Print Network [OSTI]

??The practical applications of lithium ion batteries are highly dependent on the choice of electrodes, where boosting the materials innovations to design and achieve high… (more)

Wang, Dongniu

2013-01-01T23:59:59.000Z

147

Design and Simulation of Passive Thermal Management System for Lithium-ion Battery Packs on an Unmanned Ground Vehicle.  

E-Print Network [OSTI]

?? The transient thermal response of a 15-cell, 48 volt, lithium-ion battery pack for an unmanned ground vehicle was simulated with ANSYS Fluent. Heat generation… (more)

Parsons, Kevin Kenneth

2012-01-01T23:59:59.000Z

148

SISGR: Linking Ion Solvation and Lithium Battery Electrolyte Properties  

SciTech Connect (OSTI)

The solvation and phase behavior of the model battery electrolyte salt lithium trifluoromethanesulfonate (LiCF3SO3) in commonly used organic solvents; ethylene carbonate (EC), gamma-butyrolactone (GBL), and propylene carbonate (PC) was explored. Data from differential scanning calorimetry (DSC), Raman spectroscopy, and X-ray diffraction were correlated to provide insight into the solvation states present within a sample mixture. Data from DSC analyses allowed the construction of phase diagrams for each solvent system. Raman spectroscopy enabled the determination of specific solvation states present within a solvent-Ã?Â?Ã?Â?salt mixture, and X-ray diffraction data provided exact information concerning the structure of a solvates that could be isolated Thermal analysis of the various solvent-salt mixtures revealed the phase behavior of the model electrolytes was strongly dependent on solvent symmetry. The point groups of the solvents were (in order from high to low symmetry): C2V for EC, CS for GBL, and C1 for PC(R). The low symmetry solvents exhibited a crystallinity gap that increased as solvent symmetry decreased; no gap was observed for EC-LiTf, while a crystallinity gap was observed spanning 0.15 to 0.3 mole fraction for GBL-LiTf, and 0.1 to 0.33 mole fraction for PC(R)-LiTf mixtures. Raman analysis demonstrated the dominance of aggregated species in almost all solvent compositions. The AGG and CIP solvates represent the majority of the species in solutions for the more concentrated mixtures, and only in very dilute compositions does the SSIP solvate exist in significant amounts. Thus, the poor charge transport characteristics of CIP and AGG account for the low conductivity and transport properties of LiTf and explain why is a poor choice as a source of Li+ ions in a Li-ion battery.

Trulove, Paul C; Foley, Matthew P

2013-03-14T23:59:59.000Z

149

Hybrid Nano Carbon Fiber/Graphene Platelet-Based High-Capacity...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

D.C. es009jang2010o.pdf More Documents & Publications Hybrid Nano Carbon FiberGraphene Platelet-Based High-Capacity Anodes for Lithium Ion Batteries 2010 DOE EERE Vehicle...

150

Hybrid Nano Carbon Fiber/Graphene Platelet-Based High-Capacity...  

Broader source: Energy.gov (indexed) [DOE]

es009jang2011o.pdf More Documents & Publications Hybrid Nano Carbon FiberGraphene Platelet-Based High-Capacity Anodes for Lithium Ion Batteries Progress of DOE...

151

Efficient Reformulation of Solid-Phase Diffusion in Physics-Based Lithium-Ion Battery Models  

E-Print Network [OSTI]

Efficient Reformulation of Solid-Phase Diffusion in Physics-Based Lithium-Ion Battery Models or approximation for the solid phase. One of the major difficulties in simulating Li-ion battery models is the need typically solve electrolyte con- centration, electrolyte potential, solid-state potential, and solid-state

Subramanian, Venkat

152

Mathematical Model Reformulation for Lithium-Ion Battery Simulations: Galvanostatic Boundary Conditions  

E-Print Network [OSTI]

-ion battery which has been converted to a one-dimensional 1D model using approxi- mations for solid-state listed elsewhere Electrochem. Solid-State Lett., 10, A225 2007 can be carried out to expedite of charge, state of health, and other parameters of lithium-ion batteries in millisec- onds. Rigorous

Subramanian, Venkat

153

Fact Sheet: Lithium-Ion Batteries for Stationary Energy Storage (October 2012)  

Broader source: Energy.gov (indexed) [DOE]

Pacific Northwest National Laboratory Pacific Northwest National Laboratory Current Li-Ion Battery Improved Li-Ion Battery Novel Synthesis New Electrode Candidates Coin Cell Test Stability and Safety Full Cell Fabrication and Optimization Lithium-ion (Li-ion) batteries offer high energy and power density, making them popular in a variety of mobile applications from cellular telephones to electric vehicles. Li-ion batteries operate by migrating positively charged lithium ions through an electrolyte from one electrode to another, which either stores or discharges energy, depending on the direction of the flow. They can employ several different chemistries, each offering distinct benefits and limitations. Despite their success in mobile applications, Li-ion technologies have not demonstrated

154

Development of Electrolytes for Lithium-ion Batteries  

Broader source: Energy.gov (indexed) [DOE]

goals. * Develop understanding of the mechanism of improved capacity retention for Si nano- particle electrodes in the presence of electrolyte additives FEC andor VC. * Conduct...

155

Development of Electrolytes for Lithium-ion Batteries  

Broader source: Energy.gov (indexed) [DOE]

4.75V(LNMO) 5.30V(LNMO) Similar surface species are observed on Pt to metal oxide, polyethylene carbonate and lithium fluorophosphates The metal oxide does not appear to catalyze...

156

Synthesis, Characterization and Performance of Cathodes for Lithium Ion Batteries  

E-Print Network [OSTI]

A new cathode material for batteries of high energy density.high-energy cathode for rechargeable lithium batteries. Advanced Materialsmaterials are promising cathodes, as they can provide high power and high energy,

Zhu, Jianxin

2014-01-01T23:59:59.000Z

157

Reduced Graphene Oxide Wrapped FeS Nanocomposite for Lithium-Ion Battery Anode with Improved Performance  

Science Journals Connector (OSTI)

Reduced Graphene Oxide Wrapped FeS Nanocomposite for Lithium-Ion Battery Anode with Improved Performance ... A new nanocomposite formulation of the FeS-based anode for lithium-ion batteries is proposed, where FeS nanoparticles wrapped in reduced graphene oxide (RGO) are produced via a facile direct-precipitation approach. ...

Ling Fei; Qianglu Lin; Bin Yuan; Gen Chen; Pu Xie; Yuling Li; Yun Xu; Shuguang Deng; Sergei Smirnov; Hongmei Luo

2013-05-14T23:59:59.000Z

158

Lithium-Ion battery State of Charge estimation with a Kalman Filter based on a electrochemical model  

E-Print Network [OSTI]

Lithium-Ion battery State of Charge estimation with a Kalman Filter based on a electrochemical state of charge (SOC). In this paper an averaged electrochemical Lithium-ion battery model suitable-Volmer current and the solid concentration at the interface with the electrolyte and (ii) the battery current

Stefanopoulou, Anna

159

Facile synthesis of mesoporous lithium titanate spheres for high rate lithium-ion batteries  

Science Journals Connector (OSTI)

Lithium titanate is synthesized from titanium isopropoxide and lithium acetate solution under hydrothermal environment and calcinations. Introducing acidized carbon black during synthesis can produce mesoporous Li4Ti5O12. The crystalline structure and morphological observation of the as-synthesized mesoporous Li4Ti5O12 are characterized by X-ray diffraction (XRD) and scanning electron microscopy, respectively. The mesoporous structure can be directly observed through BEI images of the cross-section sample. Besides, N2 adsorption/desorption isotherm also displays a hysteresis loop, implying the beneficial evidence of mesoporous structure. The pore size distribution of mesoporous lithium titanate evaluated by BJH model is narrow, and the average size of voids is around 4 nm. It is demonstrated that the electrochemical performance is significantly improved by the mesoporous structure. The mesoporous lithium titanate exhibits a stable capacity of 140 mAhg?1 at 0.5 C. Besides, the reversible capacity at 30 C remains over half of that at 0.5 C. The superior C-rate performance is associated with the mesoporous structure, facilitating lithium transportation ability during cycling.

Yu-Sheng Lin; Jenq-Gong Duh

2011-01-01T23:59:59.000Z

160

Spinel LiMn(2)O(4)/Reduced Graphene Oxide Hybrid for High Rate Lithium Ion Batteries  

SciTech Connect (OSTI)

A well-crystallized and nano-sized spinel LiMn{sub 2}O{sub 4}/reduced graphene oxide hybrid cathode material for high rate lithium-ion batteries has been successfully synthesized via a microwave-assisted hydrothermal method at 200 C for 30 min without any post heat-treatment. The nano-sized LiMn{sub 2}O{sub 4} particles were evenly dispersed on the reduced graphene oxide template without agglomeration, which allows the inherent high active surface area of individual LiMn{sub 2}O{sub 4} nanoparticles in the hybrid. These unique structural and morphological properties of LiMn{sub 2}O{sub 4} on the highly conductive reduced graphene oxide sheets in the hybrid enable achieving the high specific capacity, an excellent high rate capability and stable cycling performance. An analysis of the cyclic voltammogram data revealed that a large surface charge storage contribution of the LiMn{sub 2}O{sub 4}/reduced graphene oxide hybrid plays an important role in achieving faster charge/discharge.

Bak, S.M.; Nam, K.; Lee, C.-W.; Kim, K.-H.; Jung, H.-C.; Yang, X-Q.; Kim, K.-B.

2011-10-04T23:59:59.000Z

Note: This page contains sample records for the topic "lithium ion nano" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

Status of the Bio-Nano electron cyclotron resonance ion source at Toyo University  

SciTech Connect (OSTI)

In the paper, the material science experiments, carried out recently using the Bio-Nano electron cyclotron resonance ion source (ECRIS) at Toyo University, are reported. We have investigated several methods to synthesize endohedral C{sub 60} using ion-ion and ion-molecule collision reaction in the ECRIS. Because of the simplicity of the configuration, we can install a large choice of additional equipment in the ECRIS. The Bio-Nano ECRIS is suitable not only to test the materials production but also to test technical developments to improve or understand the performance of an ECRIS.

Uchida, T., E-mail: uchida-t@toyo.jp [Bio-Nano Electronics Research Centre, Toyo University, Kawagoe 350-8585 (Japan); Minezaki, H.; Ishihara, S. [Graduate School of Engineering, Toyo University, Kawagoe 350-8585 (Japan)] [Graduate School of Engineering, Toyo University, Kawagoe 350-8585 (Japan); Muramatsu, M.; Kitagawa, A.; Drentje, A. G. [National Institute of Radiological Sciences (NIRS), Chiba 263-8555 (Japan)] [National Institute of Radiological Sciences (NIRS), Chiba 263-8555 (Japan); Rácz, R.; Biri, S. [Institute for Nuclear Research (ATOMKI), H-4026 Debrecen (Hungary)] [Institute for Nuclear Research (ATOMKI), H-4026 Debrecen (Hungary); Asaji, T. [Oshima National College of Maritime Technology, Yamaguchi 742-2193 (Japan)] [Oshima National College of Maritime Technology, Yamaguchi 742-2193 (Japan); Kato, Y. [Graduate School of Engineering, Osaka University, Suita 565-0871 (Japan)] [Graduate School of Engineering, Osaka University, Suita 565-0871 (Japan); Yoshida, Y. [Bio-Nano Electronics Research Centre, Toyo University, Kawagoe 350-8585 (Japan) [Bio-Nano Electronics Research Centre, Toyo University, Kawagoe 350-8585 (Japan); Graduate School of Engineering, Toyo University, Kawagoe 350-8585 (Japan)

2014-02-15T23:59:59.000Z

162

Status of the Bio-Nano electron cyclotron resonance ion source at Toyo University  

E-Print Network [OSTI]

In the paper, the material science experiments, carried out recently using the Bio-Nano electron cyclotron resonance ion source (ECRIS) at Toyo University, are reported. We have investigated several methods to synthesize endohedral C60 using ion-ion and ion-molecule collision reaction in the ECRIS. Because of the simplicity of the configuration, we can install a large choice of additional equipment in the ECRIS. The Bio-Nano ECRIS is suitable not only to test the materials production but also to test technical developments to improve or understand the performance of an ECRIS.

Uchida, T; Ishihara, S; Muramatsu, M; Racz, R; Asaji, T; Kitagawa, A; Kato, Y; Biri, S; Drentje, A G; Yoshida, Y

2015-01-01T23:59:59.000Z

163

The Self-Improvement of Lithium-Ion Batteries | Advanced Photon Source  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Architecture and Viral Disease Architecture and Viral Disease RNA Folding: A Little Cooperation Goes a Long Way A New Phase in Cellular Communication Engineering Thin-Film Oxide Interfaces Novel Materials Become Multifunctional at the Ultimate Quantum Limit Science Highlights Archives: 2013 | 2012 | 2011 | 2010 2009 | 2008 | 2007 | 2006 2005 | 2004 | 2003 | 2002 2001 | 2000 | 1998 | Subscribe to APS Science Highlights rss feed The Self-Improvement of Lithium-Ion Batteries NOVEMBER 30, 2012 Bookmark and Share Amorphous titanium oxide nanotubes, upon lithium insertion in a Li-ion battery, self-create the highest capacity cubic lithium titanium oxide structure. The search for clean and green energy in the 21st century requires a better and more efficient battery technology. The key to attaining that goal may

164

Artificial SEI Enables High-Voltage Lithium-ion Batteries | ornl.gov  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Functional Materials for Energy Functional Materials for Energy Artificial SEI Enables High-Voltage Lithium-ion Batteries September 03, 2013 Efficacy of Lipon coating as an artificial SEI for suppression of electrolyte decomposition on a 5V spinel cathode: coulombic efficiency was measured versus cycle numbers at samples with different coating thickness. An artificial solid electrolyte interphase (SEI) of lithium phosphorus oxynitride (Lipon) enables the use of 5V cathode materials with conventional carbonate electrolytes in lithium-ion batteries. Five volt cathode materials, such as LiNi0.5Mn1.5O4, are desirable to provide higher energy, however conventional carbonate electrolytes decompose above 4.5V compromising the battery performance. This work shows that Lipon coating suppresses the electrolyte decomposition, as measured by the

165

Defect-Free, Size-Tunable Graphene for High-Performance Lithium Ion Battery  

Science Journals Connector (OSTI)

Defect-Free, Size-Tunable Graphene for High-Performance Lithium Ion Battery ... These results propose that the as-prepared defect free graphene will bring significant advance of composite electrodes for high performance in electrochemical energy systems such as batteries, fuel cells, and capacitors. ...

Kwang Hyun Park; Dongju Lee; Jungmo Kim; Jongchan Song; Yong Min Lee; Hee-Tak Kim; Jung-Ki Park

2014-07-11T23:59:59.000Z

166

Diagnostic Characterization of High Power Lithium-Ion Batteries for Use in Hybrid Electric Vehicles  

E-Print Network [OSTI]

Diagnostic Characterization of High Power Lithium-Ion Batteries for Use in Hybrid Electric Vehicles are a fast-growing technology that is attrac- tive for use in portable electronics and electric vehicles due electric vehicle HEV applications.c A baseline cell chemistry was identified as a carbon anode negative

167

Crumpled Graphene-Encapsulated Si Nanoparticles for Lithium Ion Battery Anodes  

E-Print Network [OSTI]

Crumpled Graphene-Encapsulated Si Nanoparticles for Lithium Ion Battery Anodes Jiayan Luo, Xin Zhao Information ABSTRACT: Submicrometer-sized capsules made of Si nanoparticles wrapped by crumpled graphene dispersion of micrometer-sized graphene oxide (GO) sheets and Si nanoparticles were nebulized to form aerosol

Huang, Jiaxing

168

Thermal analysis and two-directional air flow thermal management for lithium-ion battery pack  

Science Journals Connector (OSTI)

Abstract Thermal management is a routine but crucial strategy to ensure thermal stability and long-term durability of the lithium-ion batteries. An air-flow-integrated thermal management system is designed in the present study to dissipate heat generation and uniformize the distribution of temperature in the lithium-ion batteries. The system contains of two types of air ducts with independent intake channels and fans. One is to cool the batteries through the regular channel, and the other minimizes the heat accumulations in the middle pack of batteries through jet cooling. A three-dimensional anisotropic heat transfer model is developed to describe the thermal behavior of the lithium-ion batteries with the integration of heat generation theory, and validated through both simulations and experiments. Moreover, the simulations and experiments show that the maximum temperature can be decreased to 33.1 °C through the new thermal management system in comparison with 42.3 °C through the traditional ones, and temperature uniformity of the lithium-ion battery packs is enhanced, significantly.

Kuahai Yu; Xi Yang; Yongzhou Cheng; Changhao Li

2014-01-01T23:59:59.000Z

169

Thermal hazard evaluations of 18650 lithium-ion batteries by an adiabatic calorimeter  

Science Journals Connector (OSTI)

In this study, the thermal hazard features of various lithium-ion batteries, such as LiCoO2 and LiFePO4..., were assessed properly by calorimetric techniques. Vent sizing package 2 (VSP2), an adiabatic calorimete...

Tien-Yuan Lu; Chung-Cheng Chiang…

2013-12-01T23:59:59.000Z

170

Nuclear quantum effects in water exchange around lithium and fluoride ions  

E-Print Network [OSTI]

We employ classical and ring polymer molecular dynamics simulations to study the effect of nuclear quantum fluctuations on the structure and the water exchange dynamics of aqueous solutions of lithium and fluoride ions. While we obtain reasonably good agreement with experimental data for solutions of lithium by augmenting the Coulombic interactions between the ion and the water molecules with a standard Lennard-Jones ion-oxygen potential, the same is not true for solutions of fluoride, for which we find that a potential with a softer repulsive wall gives much better agreement. A small degree of destabilization of the first hydration shell is found in quantum simulations of both ions when compared with classical simulations, with the shell becoming less sharply defined and the mean residence time of the water molecules in the shell decreasing. In line with these modest differences, we find that the mechanisms of the exchange processes are unaffected by quantization, so a classical description of these reaction...

Wilkins, David M; Dang, Liem X

2015-01-01T23:59:59.000Z

171

Nano-Domain Analysis Via Massive Cluster Secondary Ion Mass Spectrometry in the Event-by-Event Mode  

E-Print Network [OSTI]

clusters useful probes to obtain molecular information from both nano-objects and nano-domains. The "event-by-event bombardment/detection mode" probes nano-objects one-at-a-time, while collecting and storing the corresponding secondary ion (SI) information...

Pinnick, Veronica Tiffany

2011-02-22T23:59:59.000Z

172

Success Stories: Solid Electrolyte Lithium Ion Batteries - Seeo, Inc.  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Solid Electrolyte May Usher in a New Generation of Solid Electrolyte May Usher in a New Generation of Rechargeable Lithium Batteries For Vehicles With sky rocketing gasoline prices and exploding laptops, there could not have been a better time for a new rechargeable battery breakthrough. Enter Lawrence Berkeley National Laboratory's (LBNL) nanostructured polymer electrolyte (NPE). NPE is a solid electrolyte designed for use in rechargeable lithium batteries. The unique material was developed by LBNL researchers Nitash Balsara, Hany Eitouni, Enrique Gomez, and Mohit Singh and licensed to startup company Seeo Inc. in 2007. With solid financial backing from Khosla Ventures, located in Menlo Park, California, and an impressive scientific team recruited from LBNL, University of California, Berkeley, and the battery industry, Seeo is now

173

VSe2/graphene nanocomposites as anode materials for lithium-ion batteries  

Science Journals Connector (OSTI)

Abstract Unprecedented VSe2/graphene nanocomposites are synthesized through a hydrothermal route. A large number of hexagonal \\{VSe2\\} sheets anchored on the graphene sheets can be observed. The thicknesses and lengths of \\{VSe2\\} sheets are controlled by graphene sheets. VSe2/graphene nanocomposite prepared with 15 mg graphite oxide (VSe2/G-15) exhibits the best electrochemical lithium storage properties such as charge/discharge capacities, cycle stability and rate capability when used as an anode material for lithium-ion batteries.

Yaping Wang; Binbin Qian; Huanhuan Li; Liang Liu; Long Chen; Haobin Jiang

2015-01-01T23:59:59.000Z

174

Synthesis and electrochemical performances of amorphous carbon-coated Sn-Sb particles as anode material for lithium-ion batteries  

SciTech Connect (OSTI)

The amorphous carbon coating on the Sn-Sb particles was prepared from aqueous glucose solutions using a hydrothermal method. Because the outer layer carbon of composite materials is loose cotton-like and porous-like, it can accommodate the expansion and contraction of active materials to maintain the stability of the structure, and hinder effectively the aggregation of nano-sized alloy particles. The as-prepared composite materials show much improved electrochemical performances as anode materials for lithium-ion batteries compared with Sn-Sb alloy and carbon alone. This amorphous carbon-coated Sn-Sb particle is extremely promising anode materials for lithium secondary batteries and has a high potentiality in the future use. - Graphical abstract: The amorphous carbon coating on the Sn-Sb particles was prepared from aqueous glucose solutions using a hydrothermal method. Because the outer layer carbon of composite materials is loose cotton-like and porous-like, it can accommodate the expansion and contraction of active materials to maintain the stability of the structure, and hinder effectively the aggregation of nano-sized alloy particles.

Wang Zhong [State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871 (China); General Research Institute for Nonferrous Metal, Beijing 100088 (China); Tian Wenhuai [Department of Materials Physics and Chemistry, University of Science and Technology Beijing, Beijing 100083 (China); Liu Xiaohe [Department of Inorganic Materials, Central South University, Changsha, Hunan 410083 (China); Yang Rong [State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871 (China); Li Xingguo [State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871 (China)], E-mail: xgli@pku.edu.cn

2007-12-15T23:59:59.000Z

175

Lithium Source For High Performance Li-ion Cells  

Broader source: Energy.gov (indexed) [DOE]

New cathode and anode electrodes are required to improve the energy density of Li-ion cells for transportation technologies. The cost of Li-ion systems for transportation...

176

Thermally stable hyperbranched polyether-based polymer electrolyte for lithium-ion batteries  

Science Journals Connector (OSTI)

A thermally stable polymer matrix, comprising hyperbranched polyether PHEMO (poly(3-{2-[2-(2-hydroxyethoxy) ethoxy] ethoxy}methyl-3'-methyloxetane)) and PVDF-HFP (poly(vinylidene fluoride-hexafluoropropylene)), has been successfully prepared for applications in lithium-ion batteries. This type of polymer electrolyte has been made by adding different amounts of lithium bis(oxalate)borate (LiBOB) to the polymer matrix. Its thermal and structural properties were measured using differential scanning calorimetry and x-ray diffraction. Experimental results show that the polymer electrolyte system possesses good thermal stability, with a decomposition temperature above 420?°C. The ionic conductivity of the polymer electrolyte system is dependent on the lithium salt content, reaching a maximum of 1.1 ? 10?5?S?cm?1 at 30?°C and 2.3 ? 10?4?S?cm?1 at 80?°C when doped with 10?wt% LiBOB.

Feng Wu; Ting Feng; Chuan Wu; Ying Bai; Lin Ye; Junzheng Chen

2010-01-01T23:59:59.000Z

177

The Effects of Various Conductive Additive and Polymeric Binder Contents on the Performance of a Lithium-ion Composite  

E-Print Network [OSTI]

Performance of a Lithium-ion Composite Cathode G Liu a,z ,of the AB and PVDF composites films. (100% legend representsimages of the AB/PVDF composites. A. AB:PVDF = 0.2:1; B. AB:

Liu, G.

2008-01-01T23:59:59.000Z

178

Development of a constitutive model predicting the point of short-circuit within lithium-ion battery cells  

E-Print Network [OSTI]

The use of Lithium Ion batteries continues to grow in electronic devices, the automotive industry in hybrid and electric vehicles, as well as marine applications. Such batteries are the current best for these applications ...

Campbell, John Earl, Jr

2012-01-01T23:59:59.000Z

179

Graphene-encapsulated mesoporous SnO2 composites as high performance anodes for lithium-ion batteries  

Science Journals Connector (OSTI)

Mesoporous metal oxides such as SnO2...exhibit a superior electrochemical performance as anode materials for lithium-ion batteries due to their large surface areas and ... collapse during the charge–discharge pro...

Shuhua Jiang; Wenbo Yue; Ziqi Gao; Yu Ren; Hui Ma…

2013-05-01T23:59:59.000Z

180

TiO2 nanoparticles on nitrogen-doped graphene as anode material for lithium ion batteries  

Science Journals Connector (OSTI)

Anatase TiO2...nanoparticles in situ grown on nitrogen-doped, reduced graphene oxide (rGO) have been successfully synthesized ... as an anode material for the lithium ion battery. The nanosized TiO2 particles wer...

Dan Li; Dongqi Shi; Zongwen Liu; Huakun Liu…

2013-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "lithium ion nano" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

In situ synthesis of SnO2 nanosheet/graphene composite as anode materials for lithium-ion batteries  

Science Journals Connector (OSTI)

A novel SnO2/graphene composite has been synthesized via an in...2 nanosheets are uniformly grown on graphene support. The as-prepared products were characterized ... used as an anode material for lithium ion batteries

Hongdong Liu; Jiamu Huang; Chengjie Xiang…

2013-10-01T23:59:59.000Z

182

Electrochemical performance and thermal property of electrospun PPESK/PVDF/PPESK composite separator for lithium-ion battery  

Science Journals Connector (OSTI)

In this study, PPESK/PVDF/PPESK tri-layer composite separators for lithium-ion batteries were prepared by electrospinning technique. The physical properties, electrochemical performances and thermal properties of...

Chun Lu; Wen Qi; Li Li; Jialong Xu; Ping Chen…

2013-07-01T23:59:59.000Z

183

Transient modeling and validation of lithium ion battery pack with air cooled thermal management system for electric vehicles  

Science Journals Connector (OSTI)

A transient numerical model of a lithium ion battery (LiB) pack with air cooled thermal management system is developed and validated for electric vehicle applications. In the battery model, the open circuit volta...

G. Y. Cho; J. W. Choi; J. H. Park; S. W. Cha

2014-08-01T23:59:59.000Z

184

Improved thermal stability of graphite electrodes in lithium-ion batteries using 4-isopropyl phenyl diphenyl phosphate as an additive  

Science Journals Connector (OSTI)

To enhance the thermal stability of graphite electrodes for lithium-ion batteries, 4-isopropyl phenyl diphenyl phosphate (IPPP)...6...in ethylene carbonate and diethyl carbonate (1:1 in weight). The electrochemic...

Qingsong Wang; Jinhua Sun; Chunhua Chen

2009-07-01T23:59:59.000Z

185

Multiphysics modeling of lithium ion battery capacity fading process with solid-electrolyte interphase growth by elementary reaction kinetics  

Science Journals Connector (OSTI)

Abstract A pseudo two-dimensional mathematical model is developed for a lithium ion battery, integrating the elementary reaction based solid-electrolyte interphase (SEI) growth model with multiple transport processes. The model is validated using the experimental data. Simulation results indicate that the operating temperature has great effect on the SEI layer generation and growth. Under different charging–discharging rates, it is found that high charging–discharging rate can intensify the battery capacity fading process. Different cooling conditions are then applied and show that enhanced surface convective cooling condition can effectively slow down the battery capacity fading. After that, the effect of electrolyte salt concentration and exchange current density are studied. It is found that raising the electrolyte salt concentration can improve the diffusion property of lithium ions, and stabilize the battery performance under lithium ion consumption induced resistance rising. It also suggests that improving exchange current density could greatly decrease the lithium ion battery capacity fading.

Yuanyuan Xie; Jianyang Li; Chris Yuan

2014-01-01T23:59:59.000Z

186

Autonomic Shutdown of Lithium-Ion Batteries Using Thermoresponsive...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

shutdown of Li-ion batteries is demonstrated by incorporating thermoresponsive polyethylene (PE) microspheres (ca. 4 m) onto battery anodes. When the internal battery...

187

GRAPHENE BASED ANODE MATERIALS FOR LITHIUM-ION BATTERIES.  

E-Print Network [OSTI]

??Improvements of the anode performances in Li-ions batteries are in demand to satisfy applications in transportation. In comparison with graphitic carbons, transition metal oxides as… (more)

Cheekati, Sree Lakshmi

2011-01-01T23:59:59.000Z

188

The Effect of Single Walled Carbon Nanotubes on Lithium-Ion Batteries and Electric Double Layer Capacitors  

E-Print Network [OSTI]

into the anode of the Li-ion battery and the electrodes of the EDLC to observe the effects it would have of SWNTs on the overall performance of Li-ion batteries and EDLCs. SWNTs were incorporated into the anode of the Lithium-ion Battery (LIB). A LIB using only graphite in the anode was the control. SWNTs were mixed

Mellor-Crummey, John

189

Advanced Electrolyte Additives for PHEV/EV Lithium-ion Battery  

Broader source: Energy.gov (indexed) [DOE]

calculation method and provide insights for the next step research of advanced additives. 5 Pristine Lithium uptake Lithium removal Lithium anodes - Instantaneous...

190

Phosphazene Based Additives for Improvement of Safety and Battery Lifetimes in Lithium-Ion Batteries  

SciTech Connect (OSTI)

There need to be significant improvements made in lithium-ion battery technology, principally in the areas of safety and useful lifetimes to truly enable widespread adoption of large format batteries for the electrification of the light transportation fleet. In order to effect the transition to lithium ion technology in a timely fashion, one promising next step is through improvements to the electrolyte in the form of novel additives that simultaneously improve safety and useful lifetimes without impairing performance characteristics over wide temperature and cycle duty ranges. Recent efforts in our laboratory have been focused on the development of such additives with all the requisite properties enumerated above. We present the results of the study of novel phosphazene based electrolytes additives.

Mason K Harrup; Kevin L Gering; Harry W Rollins; Sergiy V Sazhin; Michael T Benson; David K Jamison; Christopher J Michelbacher

2011-10-01T23:59:59.000Z

191

Polyethylene-supported polyvinylidene fluoride–cellulose acetate butyrate blended polymer electrolyte for lithium ion battery  

Science Journals Connector (OSTI)

The polyethylene (PE)-supported polymer membranes based on the blended polyvinylidene fluoride (PVDF) and cellulose acetate butyrate (CAB) are prepared for gel polymer electrolyte (GPE) of lithium ion battery. The performances of the prepared membranes and the resulting \\{GPEs\\} are investigated by scanning electron microscopy, electrochemical impedance spectroscopy, linear potential sweep, and charge–discharge test. The effect of the ratio of PVDF to CAB on the performance of the prepared membranes is considered. It is found that the GPE based on the blended polymer with PVDF:CAB = 2:1 (in weight) has the largest ionic conductivity (2.48 × 10?3 S cm?1) and shows good compatibility with anode and cathode of lithium ion battery. The LiCoO2/graphite battery using this GPE exhibits superior cyclic stability at room temperature, storage performance at elevated temperature, and rate performance.

Jiansheng Liu; Weishan Li; Xiaoxi Zuo; Shengqi Liu; Zhao Li

2013-01-01T23:59:59.000Z

192

Carbon-coated silicon nanowire array films for high-performance lithium-ion battery anodes  

Science Journals Connector (OSTI)

Carbon-coated silicon nanowire array films prepared by metal catalytic etching of silicon wafers and pyrolyzing of carbon aerogel were used for lithium-ion battery anodes. The films exhibited an excellent first discharge capacity of 3344 ? mAh ? g ? 1 with a Coulombic efficiency of 84% at a rate of 150 ? mA ? g ? 1 between 2 and 0.02 V and a significantly enhanced cycling performance i.e. a reversible capacity of 1326 ? mAh ? g ? 1 was retained after 40 cycles. These improvements were attributed to the uniform and continuous carbon coatings which increased electronic contact and conduction and buffered large volume changes during lithium ion insertion/extraction.

Rui Huang; Xing Fan; Wanci Shen; Jing Zhu

2009-01-01T23:59:59.000Z

193

Conjugated Polymer Energy Level Shifts in Lithium-Ion Battery Electrolytes  

Science Journals Connector (OSTI)

Conjugated Polymer Energy Level Shifts in Lithium-Ion Battery Electrolytes ... By comparing the data obtained in the different systems, it is found that the IPs of the conjugated polymer films determined by conventional CV (IPC) can be correlated with UPS-measured HOMO energy levels (EH,UPS) by the relationship EH,UPS = (1.14 ± 0.23) × qIPC + (4.62 ± 0.10) eV, where q is the electron charge. ...

Charles Kiseok Song; Brian J. Eckstein; Teck Lip Dexter Tam; Lynn Trahey; Tobin J. Marks

2014-10-20T23:59:59.000Z

194

Eeffect of electrolyte composition on initial cycling and impedance characteristics of lithium-ion-cells.  

SciTech Connect (OSTI)

Hybrid-electric vehicles require lithium-battery electrolytes that form stable, low impedance passivation layers to protect the electrodes, while allowing rapid lithium-ion transport under high current charge/discharge pulses. In this article, we describe data acquired on cells containing LiNi{sub 0.8}Co{sub 0.15}Al{sub 0.05}O{sub 2}-based positive electrodes, graphite-based negative electrodes, and electrolytes with lithium hexafluorophosphate (LiPF{sub 6}), lithium tetrafluoroborate (LiBF{sub 4}), lithium bis(oxalato)borate (LiBOB) and lithium difluoro(oxalato) borate (LiF{sub 2}OB) salts. The impedance data were collected in cells containing a Li-Sn reference electrode to determine effect of electrolyte composition and testing temperature on individual electrode impedance. The full cell impedance data showed the following trend: LiBOB > LiBF{sub 4} > LiF{sub 2}OB > LiPF{sub 6}. The negative electrode impedance showed a trend similar to that of the full cell; this electrode was the main contributor to impedance in the LiBOB and LiBF{sub 4} cells. The positive electrode impedance values for the LiBF{sub 4}, LiF{sub 2}OB, and LiPF{sub 6} cells were comparable; the values were somewhat higher for the LiBOB cell. Cycling and impedance data were also obtained for cells containing additions of LiBF{sub 4}, LiBOB, LiF{sub 2}OB, and vinylene carbonate (VC) to the EC:EMC (3:7 by wt.) + 1.2 M LiPF{sub 6} electrolyte. Our data indicate that the composition and morphology of the graphite SEI formed during the first lithiation cycle is an important determinant of the negative electrode impedance, and hence full cell impedance.

Abraham, D. P.; Furczon, M. M.; Kang, S.-H.; Dees, D. W.; Jansen, A. N.; Chemical Sciences and Engineering Division

2008-01-01T23:59:59.000Z

195

Advanced Surface and Microstructural Characterization of Natural Graphite Anodes for Lithium Ion Batteries  

SciTech Connect (OSTI)

Natural graphite powders were subjected to a series of thermal treatments in order to improve the anode irreversible capacity loss (ICL) and capacity retention during long-term cycling of lithium ion batteries. A baseline thermal treatment in inert Ar or N2 atmosphere was compared to cases with a proprietary additive to the furnace gas environment. This additive substantially altered the surface chemistry of the natural graphite powders and resulted in significantly improved long-term cycling performance of the lithium ion batteries over the commercial natural graphite baseline. Different heat-treatment temperatures were investigated ranging from 950-2900 C with the intent of achieving the desired long-term cycling performance with as low of a maximum temperature and thermal budget as possible. A detailed summary of the characterization data is also presented, which includes X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), Raman spectroscopy, and temperature-programed desorption mass spectroscopy (TPD-MS). This characterization data was correlated to the observed capacity fade improvements over the course of long-term cycling at high charge-discharge rates in full lithium-ion coin cells. It is believed that the long-term performance improvements are a result of forming a more stable solid electrolyte interface (SEI) layer on the anode graphite surfaces, which is directly related to the surface chemistry modifications imparted by the proprietary gas environment during thermal treatment.

Gallego, Nidia C [ORNL] [ORNL; Contescu, Cristian I [ORNL] [ORNL; Meyer III, Harry M [ORNL] [ORNL; Howe, Jane Y [ORNL] [ORNL; Meisner, Roberta Ann [ORNL] [ORNL; Payzant, E Andrew [ORNL] [ORNL; Lance, Michael J [ORNL] [ORNL; Yoon, Steve [A123 Systems, Inc.] [A123 Systems, Inc.; Denlinger, Matthew [A123 Systems, Inc.] [A123 Systems, Inc.; Wood III, David L [ORNL] [ORNL

2014-01-01T23:59:59.000Z

196

Carbon aerogel with 3-D continuous skeleton and mesopore structure for lithium-ion batteries application  

Science Journals Connector (OSTI)

Abstract Carbon aerogel (CA) with 3-D continuous skeleton and mesopore structure was prepared via a microemulsion-templated sol–gel polymerization method and then used as the anode materials of lithium-ion batteries. It was found that the reversible specific capacity of the as-prepared \\{CAs\\} could stay at about 470 mA h g?1 for 80 cycles, much higher than the theoretical capacity of commercial graphite (372 mAh g?1). In addition, CA also showed a better rate capacity compared to commercial graphite. The good electrochemical properties could be ascribed to the following three factors: (1) the large BET surface area of 620 m2 g?1, which can provide more lithium ion insertion sites, (2) 3-D continuous skeleton of CAs, which favors the transport of the electrons, (3) 3-D continuous mesopore structure with narrow mesopore size distribution and high mesopore ratio of 87.3%, which facilitates the diffusion and transport of the electrolyte and lithium ions.

Xiaoqing Yang; Hong Huang; Guoqing Zhang; Xinxi Li; Dingcai Wu; Ruowen Fu

2015-01-01T23:59:59.000Z

197

Atomic layer deposition of Al2O3 on V2O5 xerogel film for enhanced lithium-ion intercalation stability  

E-Print Network [OSTI]

- tages of using Li-ion batteries as alternative of fossil fuel for hybrid vehicle power source lie.1116/1.3664115] I. INTRODUCTION Lithium-ion batteries become the focus of rechargeable batteries in the new decade in hybrid vehicles requires high discharge capacity which current lithium-ion batteries do not have

Cao, Guozhong

198

Effects of a graphene nanosheet conductive additive on the high-capacity lithium-excess manganese–nickel oxide cathodes of lithium-ion batteries  

Science Journals Connector (OSTI)

This study examines the effects of a graphene nanosheet (GNS) conductive additive on the...?3) lithium-ion battery cathode containing 92 wt% Li1.1(Mn0.6Ni0.4)0.9O2...microspheres (approximately 6 ?m in diameter)....

Wen-Chin Chen; Cheng-Yu Hsieh; Yu-Ting Weng…

2014-11-01T23:59:59.000Z

199

Free Energy for Protonation Reaction in Lithium-Ion Battery Cathode Materials  

Science Journals Connector (OSTI)

Free Energy for Protonation Reaction in Lithium-Ion Battery Cathode Materials ... The electrochemically inert layered defect-rocksalt compound Li2MnO3 has been structurally integrated with more electrochemically active layered compounds in order to enhance Li-ion-battery cathode stability. ... Cathodes of the material had a discharge capacity of 200 mA-h/g, based on the mass of the Li-Mn oxide; an electrode capacity of >140 mA-h/g was achieved on cycling in a room-temp. ...

R. Benedek; M. M. Thackeray; A. van de Walle

2008-08-06T23:59:59.000Z

200

American Lithium Energy Corp | Open Energy Information  

Open Energy Info (EERE)

Lithium Energy Corp Jump to: navigation, search Name: American Lithium Energy Corp Place: San Marcos, California Zip: 92069 Product: California-based developer of lithium ion...

Note: This page contains sample records for the topic "lithium ion nano" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

Integrated Lithium-Ion Battery Model Encompassing Multi-Physics in Varied Scales: An Integrated Computer Simulation Tool for Design and Development of EDV Batteries (Presentation)  

SciTech Connect (OSTI)

This presentation discusses the physics of lithium-ion battery systems in different length scales, from atomic scale to system scale.

Kim, G. H.; Smith, K.; Lee, K. J.; Santhanagopalan, S.; Pesaran, A.

2011-01-01T23:59:59.000Z

202

Nano-web structures constructed with a cellulose acetate/lithium chloride/polyethylene oxide hybrid: Modeling, fabrication and characterization  

Science Journals Connector (OSTI)

Abstract Electrospun nano-web structures (ENWSs) were successfully fabricated from ionized binary solution of celluloseMn30/polyethylene oxideMn200 (CA/PEO of 0.5–1.5). Final concentration of polymers was 12% (w/v) in the solution, and lithium chloride was used as ionizing agent. Response surface methodology (RSM) was applied to the optimize fabrication of ENWSs. Results of multiple linear regression analysis revealed that the solution properties and \\{ENWSs\\} morphology were strongly influenced by CA/PEO. An increase in PEO amount increased the viscosity which is a function of molecular weight, and as a result raised the entanglement of polymeric solution but decreased the surface tension that all support nanofibers fabrication. The size of nanofibers decreased with reducing PEO and LiCl concentration. Increasing the content of LiCl promoted the electrical conductivity (EC) value; however, junction zones were formed. The overall optimum region was found to be at combined level of 1.5% CA/PEO and 0.49% (w/v) LiCl.

Atefeh Broumand; Zahra Emam-Djomeh; Faramarz Khodaiyan; Sasan Mirzakhanlouei; Driush Davoodi; Ali A. Moosavi-Movahedi

2015-01-01T23:59:59.000Z

203

Emission of Negative Electricity from Nickel when Bombarded by Positive Lithium Ions  

Science Journals Connector (OSTI)

A nickel target was bombarded with positive lithium ions and observations were made of the number of negative charges emitted per positive ion striking the target. The energies of the bombarding ions were within the ranges 1000 to 2000 electron-volts and 5000 to 20,000 electron-volts, approximately. Observations were made with the target at room temperature and at a yellowish-red heat. There is a marked difference between the curves found for the two cases. For the cold target the curve has a maximum between 10,000 and 11,000 volts, while the number of negative charges emitted per positive ion from the hot target increases from 0.13 at 1000 volts to 2.35 at 20,000 volts, no maximum having been found.

W. S. Stein

1932-05-01T23:59:59.000Z

204

Thermal evaluation and performance of high-power Lithium-ion cells  

SciTech Connect (OSTI)

Under the sponsorship of the US Advanced Battery Consortium (USABC) and the Partnership for a New Generation of Vehicles (PNGV), Saft has developed high-power lithium-ion (Li-Ion) batteries for hybrid electric vehicles (HEVs). These high-power Li-Ion batteries are being evaluated for the US Department of Energy's (DOE) Hybrid Vehicle Propulsion Program. As part of this program, the National Renewable Energy Laboratory (NREL) characterized the thermal performance of the Saft (6-Ah) Li-Ion cells. The characterization included (1) obtaining thermal images of cells under a specified cycle, (2) measuring heat generation from the cells at various temperatures and under various charge/discharge profiles, and (3) determining the cells' capabilities for following a simulated power profile (driving cycle) at various initial states of charge and temperatures.

Keyser, M.; Pesaran, A.; Oweis, S.; Chagnon, G.; Ashtiani, C.

2000-01-25T23:59:59.000Z

205

Uniform hierarchical SnS microspheres: Solvothermal synthesis and lithium ion storage performance  

SciTech Connect (OSTI)

Graphical abstract: - Highlights: • Uniform hierarchical SnS microspheres via solvothermal reaction. • The formation process was investigated in detail. • The obtained hierarchical SnS microspheres exhibit superior capacity (1650 mAh g{sup ?1}) when used as lithium battery for the hierarchical microsphere structure. - Abstract: Hierarchical SnS microspheres have been successfully synthesized by a mild solvothermal process using poly(vinylpyrrolidone) as surfactant in this work. The morphology and composition of the microspheres were investigated by X-ray diffraction, scanning electron microscopy and transmission electron microscopy. The influence of reaction parameters, such as sulfur sources, reaction temperature and the concentration of PVP, on the final morphology of the products are investigated. On the basis of time-dependent experiments, the growth mechanism has also been proposed. The specific surface area of the 3D hierarchitectured SnS microspheres were investigated by using nitrogen adsorption and desorption isotherms. Lithium ion storage performances of the synthesized materials as anodes for Lithium-ion battery were investigated in detail and it exhibits excellent electrochemical properties.

Fang, Zhen, E-mail: fzfscn@mail.ahnu.edu.cn; Wang, Qin; Wang, Xiaoqing; Fan, Fan; Wang, Chenyan; Zhang, Xiaojun

2013-11-15T23:59:59.000Z

206

The Application of Synchrotron Techniques to the Study of Lithium-ion Batteries  

SciTech Connect (OSTI)

This paper gives a brief review of the application of synchrotron X-ray techniques to the study of lithium-ion battery materials. The two main techniques are X-ray absorption spectroscopy (XAS) and high-resolution X-ray diffraction (XRD). Examples are given for in situ XAS and XRD studies of lithium-ion battery cathodes during cycling. This includes time-resolved methods. The paper also discusses the application of soft X-ray XAS to do ex situ studies on battery cathodes. By applying two signal detection methods, it is possible to probe the surface and the bulk of cathode materials simultaneously. Another example is the use of time-resolved XRD studies of the decomposition of reactions of charged cathodes at elevated temperatures. Measurements were done both in the dry state and in the presence of electrolyte. Brief reports are also given on two new synchrotron techniques. One is inelastic X-ray scattering, and the other is synchrotron X-ray reflectometry studies of the surface electrode interface (SEI) on highly oriented single crystal lithium battery cathode surfaces.

McBreen, J.

2009-07-01T23:59:59.000Z

207

Investigating the low-temperature impedance increase of lithium-ion cells.  

SciTech Connect (OSTI)

Low-temperature performance loss is a significant barrier to commercialization of lithium-ion cells in hybrid electric vehicles. Increased impedance, especially at temperatures below 0 C, reduces the cell pulse power performance required for cold engine starts, quick acceleration, or regenerative braking. Here we detail electrochemical impedance spectroscopy data on binder- and carbon-free layered-oxide and spinel-oxide electrodes, obtained over the +30 to ?30 C temperature range, in coin cells containing a lithium-preloaded Li{sub 4/3}Ti{sub 5/3}O{sub 4} composite (LTOc) counter electrode and a LiPF{sub 6}-bearing ethylene carbonate/ethyl methyl carbonate electrolyte. For all electrodes studied, the impedance increased with decreasing cell temperature; the increases observed in the midfrequency arc dwarfed the increases in ohmic resistance and diffusional impedance. Our data suggest that the movement of lithium ions across the electrochemical interface on the active material may have been increasingly hindered at lower temperatures, especially below 0 C. Low-temperature performance may be improved by modifying the electrolyte-active material interface (for example, through electrolyte composition changes). Increasing surface area of active particles (for example, through nanoparticle use) can lower the initial electrode impedance and lead to lower cell impedances at -30 C.

Abraham, D. P.; Heaton, J. R.; Kang, S.-H.; Dees, D. W.; Jansen, A. N.; Chemical Engineering

2008-01-01T23:59:59.000Z

208

Hard Carbon Wrapped in Graphene Networks as Lithium Ion Battery Anode  

Science Journals Connector (OSTI)

Abstract Hard carbon enveloped with graphene networks was fabricated by a facile and scalable method. In the constructed architecture, hard carbon offers large lithium storage and flexible graphene layers can provide a highly conductive matrix for enabling good contact between particles and facilitate the diffusion and transport of electrons and ions. As a consequence, the hybrid anode exhibits enhanced reversible capacity (500 mAh g?1 at current density of 20 mA g?1), rate capability (400 mAh g?1 at 0.2 C, 290 mAh g?1 at 1 C, 250 mAh g?1 at 2 C, and 200 mAh g?1 at 5 C, 1C = 400 mA g?1) and cycle performance. We believe that the outstanding synergetic effect between the graphene networks and the hard carbon structures induces the superior lithium storage performance of the overall electrode by maximally utilizing the electrochemically active graphene and hard carbon particles. As far as we know, the hard carbon/graphene hybrids were firstly fabricated as anode in lithium-ion batteries.

Xiang Zhang; Changling Fan; Lingfang Li; Weihua Zhang; Wei Zeng; Xing He; Shaochang Han

2014-01-01T23:59:59.000Z

209

Characterization of Electrode Materials for Lithium Ion and Sodium Ion Batteries using Synchrotron Radiation Techniques  

E-Print Network [OSTI]

Relationships in the Li-Ion Battery Electrode Material LiNiAl foil may be used for Li ion battery cathode materials andElectrode materials, Li ion battery, Na ion battery, X-ray

Doeff, Marca M.

2013-01-01T23:59:59.000Z

210

Nano-SIMS | EMSL  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Nano-SIMS Nano-SIMS EMSL's novel, new-generation ion microprobe extends high spatial resolution secondary ion mass spectrometry (NanoSIMS) analysis to extremely small areas (down...

211

Characterization of polymeric films subjected to lithium ion beam irradiation  

SciTech Connect (OSTI)

Two different polymeric materials that are candidate materials for use as binders for mixed uranium–plutonium oxide nuclear fuel pellets were subjected to Li ion beam irradiation, in order to simulate intense alpha irradiation. The materials (a polyethylene glycol 8000 and a microcrystalline wax) were then analyzed using a combination of mass spectrometry (MS) approaches and X-ray photoelectron spectroscopy (XPS). Samples of the irradiated PEG materials were dissolved in H2O and then analyzed using electrospray ionization-MS, which showed the formation of a series of small oligomers in addition to intact large PEG oligomers. The small oligomers were likely formed by radiation-induced homolytic scissions of the C–O and C–C bonds, which furnish radical intermediates that react by radical recombination with Hradical dot and OHradical dot. Surface analysis using SIMS revealed a heterogeneous surface that contained not only PEG-derived polymers, but also hydrocarbon-based entities that are likely surface contaminants. XPS of the irradiated PEG samples indicated the emergence of different carbon species, with peak shifts suggesting the presence of sp2 carbon atoms. Analysis of the paraffinic film using XPS showed the emergence of oxygen on the surface of the sample, and also a broadening and shifting of the C1s peak, demonstrating a change in the chemistry on the surface. The paraffinic film did not dissolve in either H2O or a H2O–methanol solution, and hence the bulk of the material could not be analyzed using electrospray. However a series of oligomers was leached from the bulk material that produced ion series in the ESI-MS analyses that were identified octylphenyl ethoxylate oligomers. Upon Li ion bombardment, these shifted to a lower average molecular weight, but more importantly showed the emergence of three new ion series that are being formed as a result of radiation damage. Surface analysis of the paraffinic polymers using SIMS produced spectra that were wholly dominated by hydrocarbon ion series, and no difference was observed between unirradiated and irradiated samples. The studies demonstrate that for the PEG-based polymers, direct evidence for radiolytic scission can be observed using ESI-MS, and suggests that both radiolytic pathways and efficiencies as a function of dose should be measurable by calibrating instrument response to the small oligomeric degradation products.

Gary S. Groenewold; W. Roger Cannon; Paul A. Lessing; Recep Avci; Muhammedin Deliorman; Mark Wolfenden; Doug W. Akers; J. Keith Jewell

2013-02-01T23:59:59.000Z

212

Potential use of geothermal energy sources for the production of lithium-ion batteries  

Science Journals Connector (OSTI)

The lithium-ion battery is one of the most promising technologies for energy storage in many recent and emerging applications. However, the cost of lithium-ion batteries limits their penetration in the public market. Energy input is a significant cost driver for lithium batteries due to both the electrical and thermal energy required in the production process. The drying process requires 45–57% of the energy consumption of the production process according to a model presented in this paper. The model is used as a base for quantifying the energy and temperatures at each step, as replacing electric energy with thermal energy is considered. In Iceland, it is possible to use geothermal steam as a thermal resource in the drying process. The most feasible type of dryer and heating method for lithium batteries would be a tray dryer (batch) using a conduction heating method under vacuum operation. Replacing conventional heat sources with heat from geothermal steam in Iceland, we can lower the energy cost to 0.008USD/Ah from 0.13USD/Ah based on average European energy prices. The energy expenditure after 15 years operation could be close to 2% of total expenditure using this renewable resource, down from 12 to 15% in other European countries. According to our profitability model, the internal rate of return of this project will increase from 11% to 23% by replacing the energy source. The impact on carbon emissions amounts to 393.4–215.1 g/Ah lower releases of CO2 per year, which is only 2–5% of carbon emissions related to battery production using traditional energy sources.

Gudrun Saevarsdottir; Pai-chun Tao; Hlynur Stefansson; William Harvey

2014-01-01T23:59:59.000Z

213

The development of low cost LiFePO4-based high power lithium-ion batteries  

SciTech Connect (OSTI)

The cycling performance of low-cost LiFePO4-based high-power lithium-ion cells was investigated and the components were analyzed after cycling to determine capacity fade mechanisms. Pouch type LiFePO4/natural graphite cells were assembled and evaluated by constant C/2 cycling, pulse-power and impedance measurements. From post-test electrochemical analysis after cycling, active materials, LiFePO4 and natural graphite, showed no degradation structurally or electrochemically. The main reasons for the capacity fade of cell were lithium inventory loss by side reaction and possible lithium deposition on the anode.

Shim, Joongpyo; Sierra, Azucena; Striebel, Kathryn A.

2003-11-25T23:59:59.000Z

214

The development of low cost LiFePO4-based high power lithium-ion batteries  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

development of low cost LiFePO4-based high power lithium-ion batteries development of low cost LiFePO4-based high power lithium-ion batteries Title The development of low cost LiFePO4-based high power lithium-ion batteries Publication Type Journal Article Year of Publication 2005 Authors Striebel, Kathryn A., Joongpyo Shim, Azucena Sierra, Hui Yang, Xiangyun Song, Robert Kostecki, and Kathryn N. McCarthy Journal Journal of Power Sources Volume 146 Pagination 33-38 Keywords libob, lifepo4, lithium-ion, post-test, raman spectroscopy Abstract Pouch type LiFePO4-natural graphite lithium-ion cells were cycled at constant current with periodic pulse-power testing in several different configurations. Components were analyzed after cycling with electrochemical, Raman and TEM techniques to determine capacity fade mechanisms. The cells with carbon-coated current collectors in the cathode and LiBOB-salt electrolyte showed the best performance stability. In many cases, iron species were detected on the anodes removed from cells with both TEM and Raman spectroscopy. The LiFePO4 electrodes showed unchanged capacity suggesting that the iron is migrating in small quantities and is acting as a catalyst to destabilize the anode SEI in these cells.

215

Facile Preparation of One-Dimensional Wrapping Structure: Graphene Nanoscroll-Wrapped of Fe3O4 Nanoparticles and Its Application for Lithium-Ion Battery  

Science Journals Connector (OSTI)

Facile Preparation of One-Dimensional Wrapping Structure: Graphene Nanoscroll-Wrapped of Fe3O4 Nanoparticles and Its Application for Lithium-Ion Battery ... graphene nanoscroll; graphene; Fe3O4; one-dimensional wrapping; lithium-ion batteries ...

Jinping Zhao; Bingjun Yang; Zongmin Zheng; Juan Yang; Zhi Yang; Peng Zhang; Wencai Ren; Xingbin Yan

2014-05-14T23:59:59.000Z

216

Subeutectic Growth of Single-Crystal Silicon Nanowires Grown on and Wrapped with Graphene Nanosheets: High-Performance Anode Material for Lithium-Ion Battery  

Science Journals Connector (OSTI)

Subeutectic Growth of Single-Crystal Silicon Nanowires Grown on and Wrapped with Graphene Nanosheets: High-Performance Anode Material for Lithium-Ion Battery ... Yu, A.; Park, H. W.; Davies, A.; Higgins, D.; Chen, Z.; Xaio, X.Free-Standing Layer-by-Layer Hybrid Thin Film of Graphene-MnO2 Nanotube as Anode for Lithium Ion Batteries J. Phys. ...

Fathy M Hassan; Abdel Rahman Elsayed; Victor Chabot; Rasim Batmaz; Xingcheng Xiao; Zhongwei Chen

2014-07-31T23:59:59.000Z

217

PSM: Lithium-Ion Battery State of Charge (SOC) and Critical Surface Charge (CSC) Estimation using an Electrochemical Model-driven  

E-Print Network [OSTI]

PSM: Lithium-Ion Battery State of Charge (SOC) and Critical Surface Charge (CSC) Estimation using Abstract-- This paper presents a numerical calculation of the evolution of the spatially-resolved solid concentration in the two electrodes of a lithium-ion cell. The microscopic solid con- centration is driven

Stefanopoulou, Anna

218

Electrospun carboxymethyl cellulose acetate butyrate (CMCAB) nanofiber for high rate lithium-ion battery  

Science Journals Connector (OSTI)

Abstract Cellulose derivative CMCAB was synthesized, and nanometer fiber composite material was obtained from lithium iron phosphate (LiFePO4, LFP)/CMCAB by electrospinning. Under the protection of inert gas, modified LFP/carbon nanofibers (CNF) nanometer material was obtained by carbonization in 600 °C. IR, TG-DSC, SEM and EDS were performed to characterize their morphologies and structures. LFP/CNF composite materials were assembled into lithium-ion battery and tested their performance. Specific capacity was increased from 147.6 mAh g?1 before modification to 160.8 mAh g?1 after modification for the first discharge at the rate of 2 C. After 200 charge–discharge cycles, when discharge rate was increased from 2 C to 5 C to 10 C, modified battery capacity was reduced from 152.4 mAh g?1 to 127.9 mAh g?1 to 106 mAh g?1. When the ratio was reduced from 10 C to 5 C to 2 C, battery capacity can be quickly approximate to the original level. Cellulose materials that were applied to lithium battery can improve battery performance by electrospinning.

Lei Qiu; Ziqiang Shao; Mingshan Yang; Wenjun Wang; Feijun Wang; Long Xie; Shaoyi Lv; Yunhua Zhang

2013-01-01T23:59:59.000Z

219

Cation-substituted spinel oxide and oxyfluoride cathodes for lithium ion batteries  

DOE Patents [OSTI]

The present invention includes compositions and methods of making cation-substituted and fluorine-substituted spinel cathode compositions by firing a LiMn.sub.2-y-zLi.sub.yM.sub.zO.sub.4 oxide with NH.sub.4HF.sub.2 at low temperatures of between about 300 and 700.degree. C. for 2 to 8 hours and a .eta. of more than 0 and less than about 0.50, mixed two-phase compositions consisting of a spinel cathode and a layered oxide cathode, and coupling them with unmodified or surface modified graphite anodes in lithium ion cells.

Manthiram, Arumugam; Choi, Wongchang

2014-05-13T23:59:59.000Z

220

Electrochemical modeling of lithium-ion positive electrodes during hybrid pulse power characterization tests.  

SciTech Connect (OSTI)

An electrochemical model was developed to examine hybrid pulsed power characterization (HPPC) tests on the positive electrode of lithium-ion cells. By utilizing the same fundamental equations as in previous electrochemical impedance spectroscopy studies, this investigation serves as an extension of the earlier work and a comparison of the two techniques. The electrochemical model was used to examine performance characteristics and limitations for the positive electrode during HPPC tests. Parametric studies using the electrochemical model and focusing on the positive electrode thickness were employed to examine methods of slowing electrode aging and improving performance.

Dees, D.; Gunen, E.; Abraham, D.; Jansen, A.; Prakash, J.; Chemical Sciences and Engineering Division; Illinois Inst. of Tech.

2008-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "lithium ion nano" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

Pulsed laser deposited Si on multilayer graphene as anode material for lithium ion batteries  

Science Journals Connector (OSTI)

Pulsed laser deposition and chemical vapor deposition were used to deposit very thin silicon on multilayer graphene (MLG) on a nickel foam substrate for application as an anode material for lithium ion batteries. The as-grown material was directly fabricated into an anode without a binder and tested in a half-cell configuration. Even under stressful voltage limits that accelerate degradation the Si-MLG films displayed higher stability than Si-only electrodes. Post-cycling images of the anodes reveal the differences between the two material systems and emphasize the role of the graphene layers in improving adhesion and electrochemical stability of the Si.

Gouri Radhakrishnan; Brendan Foran; Michael V. Quinzio; Miles J. Brodie

2013-01-01T23:59:59.000Z

222

Silicon nanoparticle and carbon nanotube loaded carbon nanofibers for use in lithium-ion battery anodes  

Science Journals Connector (OSTI)

Abstract In this report, we introduce electrospun silicon nanoparticle and carbon nanotube loaded carbon nanofibers (SCNFs) as anode materials in lithium-ion batteries (LIBs). The one-dimensional structure of electrospun nanofibers provides porosity for the anode material. Carbon nanotubes (CNTs) in the electrospun fibers reduce the volume expansion of silicon nanoparticles (SiNPs) and improve mechanical stability of the electrode. Both \\{CNTs\\} and carbon nanofibers enhance electronic conduction by connecting SiNPs in \\{SCNFs\\} for electrode reactions. These contribute to improved electrochemical performance of SCNF anode-based \\{LIBs\\} resulting in the enhancement of capacity and cycling ability.

Nguyen Trung Hieu; Jungdon Suk; Dong Wook Kim; Ok Hee Chung; Jun Seo Park; Yongku Kang

2014-01-01T23:59:59.000Z

223

The role of carbon in ion beam nano-patterning of silicon  

SciTech Connect (OSTI)

We report a comparative study of nano-pattern formations on a carbon film and a smooth Si(100) surface following inert and chemically active ion bombardment. For the case of carbon film, patterns could be formed both by inert (Ar{sup +}) and self (C{sup +}) ion bombardment with the former producing ripples at relatively lower fluence. In contrast, bombardment by inert Ar{sup +} failed to form the nano patterns on Si surface, while bombardment by the same energy C{sup +} generated the ripples. Thus, impurity induced chemical effect seems to be crucial rather than the Bradley-Harper or Carter-Vishnyakov effects for destabilizing the surface for ripple formation.

Bhattacharjee, S. [Variable Energy Cyclotron Center, I/AF, Bidhannagar, Kolkata 700064 (India) [Variable Energy Cyclotron Center, I/AF, Bidhannagar, Kolkata 700064 (India); UGC-DAE Consortium for Scientific Research, III/LB-8, Saltlake, Kolkata 700098 (India); Karmakar, P.; Naik, V.; Chakrabarti, A. [Variable Energy Cyclotron Center, I/AF, Bidhannagar, Kolkata 700064 (India)] [Variable Energy Cyclotron Center, I/AF, Bidhannagar, Kolkata 700064 (India); Sinha, A. K. [UGC-DAE Consortium for Scientific Research, III/LB-8, Saltlake, Kolkata 700098 (India)] [UGC-DAE Consortium for Scientific Research, III/LB-8, Saltlake, Kolkata 700098 (India)

2013-10-28T23:59:59.000Z

224

STUDIES ON TWO CLASSES OF POSITIVE ELECTRODE MATERIALS FOR LITHIUM-ION BATTERIES  

E-Print Network [OSTI]

Linden, D. , Handbook of Batteries. 2nd ed. 1995, New York:rechargeable lithium batteries. Nature, 2001. 414(6861): p.of rechargeable lithium batteries, I. Lithium manganese

Wilcox, James D.

2010-01-01T23:59:59.000Z

225

STUDIES ON TWO CLASSES OF POSITIVE ELECTRODE MATERIALS FOR LITHIUM-ION BATTERIES  

E-Print Network [OSTI]

around 3.5 M. A slight excess of lithium (5%) was used tothat there is a slight excess of lithium in materials withto the formation of a lithium excess surface material (Li 1+

Wilcox, James D.

2010-01-01T23:59:59.000Z

226

STUDIES ON TWO CLASSES OF POSITIVE ELECTRODE MATERIALS FOR LITHIUM-ION BATTERIES  

E-Print Network [OSTI]

2 H 3 O 2 Li·2H 2 O (lithium acetate, Sigma Aldrich), and HThe iron nitrate and lithium acetate were combined with the

Wilcox, James D.

2010-01-01T23:59:59.000Z

227

Understanding the Degredation of Silicion Electrodes for Lithium Ion Batteries Using Acoustic Emission  

SciTech Connect (OSTI)

Silicon is a promising anode material for lithium ion battery application due to its high specific capacity, low cost, and abundance. However, when silicon is lithiated at room temperature it can undergo a volume expansion in excess of 280% which leads to extensive fracturing. This is thought to be a primary cause of the rapid decay in cell capacity routinely observed. Acoustic emission (AE) was employed to monitor activity in composite silicon electrodes while cycling in lithium ion half-cells using a constant current-constant voltage procedure. The major source of AE was identified as the brittle fracture of silicon particles resulting from the alloying reaction that gives rise to LixSi phases. The largest number of emissions occurred on the first lithiation corresponding to surface fracture of the silicon particles, followed by distinct emission bursts on subsequent charge and discharge steps. Furthermore, a difference in the average parameters describing emission during charge and discharge steps was observed. Potential diagnostic and materials development applications of the presented AE techniques are discussed.

Rhodes, Kevin J [ORNL; Dudney, Nancy J [ORNL; Lara-Curzio, Edgar [ORNL; Daniel, Claus [ORNL

2010-01-01T23:59:59.000Z

228

The Effect of Temperature on Capacity and Power in Cycled Lithium Ion Batteries  

SciTech Connect (OSTI)

The Idaho National Laboratory (INL) tested six Saft America HP-12 (Generation 2000), 12-Ah lithium ion cells to evaluate cycle life performance as a power assist vehicle battery. The cells were tested to investigate the effects of temperature on capacity and power fade. Test results showed that five of the six cells were able to meet the Power Assist Power and Energy Goals at the beginning of test and after 300,000 cycles using a Battery Size Factor of 44.3 cells. The initial Static Capacity tests showed that the capacities of the cells were stable for three discharges and had an average of 16.4 Ah. All the cells met the Self-Discharge goal, but failed to meet the Cold Cranking goal. As is typical for lithium ion cells, both power and capacity were diminished during the low-temperature Thermal Performance test and increased during the high-temperature Thermal Performance test. Capacity faded as expected over the course of 300,000 life cycles and showed a weak inverse relationship to increasing temperature. Power fade was mostly a result of cycling while temperature had a minor effect compared to cycle life testing. Consequently, temperature had very little effect on capacity and power fade for the proprietary G4 chemistry.

Jeffrey R. Belt

2005-03-01T23:59:59.000Z

229

Hierarchical mesoporous/microporous carbon with graphitized frameworks for high-performance lithium-ion batteries  

SciTech Connect (OSTI)

A hierarchical meso-/micro-porous graphitized carbon with uniform mesopores and ordered micropores, graphitized frameworks, and extra-high surface area of ?2200 m{sup 2}/g, was successfully synthesized through a simple one-step chemical vapor deposition process. The commercial mesoporous zeolite Y was utilized as a meso-/ micro-porous template, and the small-molecule methane was employed as a carbon precursor. The as-prepared hierarchical meso-/micro-porous carbons have homogeneously distributed mesopores as a host for electrolyte, which facilitate Li{sup +} ions transport to the large-area micropores, resulting a high reversible lithium ion storage of 1000 mA h/g and a high columbic efficiency of 65% at the first cycle.

Lv, Yingying; Fang, Yin; Qian, Xufang; Tu, Bo [Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Laboratory of Advanced Materials, Fudan University, Shanghai 200433 (China); Wu, Zhangxiong [Department of Chemical Engineering, Monash University, Clayton, VIC 3800 (Australia); Asiri, Abdullah M. [Chemistry Department and The Center of Excellence for Advanced Materials Research, King Abdulaziz University, P.O. Box 80203, Jeddah 21589 (Saudi Arabia); Zhao, Dongyuan, E-mail: dyzhao@fudan.edu.cn [Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Laboratory of Advanced Materials, Fudan University, Shanghai 200433 (China); Department of Chemical Engineering, Monash University, Clayton, VIC 3800 (Australia)

2014-11-01T23:59:59.000Z

230

Controlled deposition of sulphur-containing semiconductor and dielectric nano-structured films on metals in SF{sub 6} ion-ion plasma  

SciTech Connect (OSTI)

In the present paper, the deposition processes and formation of films in SF{sub 6} ion-ion plasma, with positive and negative ion flows accelerated to the surface, are investigated. The PEGASES (acronym for Plasma Propulsion with Electronegative GASES) source is used as an ion-ion plasma source capable of generating almost ideal ion-ion plasma with negative ion to electron density ratio more than 2500. It is shown that film deposition in SF{sub 6} ion-ion plasma is very sensitive to the polarity of the incoming ions. The effect is observed for Cu, W, and Pt materials. The films formed on Cu electrodes during negative and positive ion assisted deposition were analyzed. Scanning electron microscope analysis has shown that both positive and negative ion fluxes influence the copper surface and leads to film formation, but with different structures of the surface: the low-energy positive ion bombardment causes the formation of a nano-pored film transparent for ions, while the negative ion bombardment leads to a continuous smooth insulating film. The transversal size of the pores in the porous film varies in the range 50–500 nm, and further analysis of the film has shown that the film forms a diode together with the substrate preventing positive charge drain, and positive ions are neutralized by passing through the nano-pores. The film obtained with the negative ion bombardment has an insulating surface, but probably with a multi-layer structure: destroying the top surface layer allows to measure similar “diode” IV-characteristics as for the nano-pored film case. Basing on results, practical conclusions for the probes and electrodes cleaning in ion-ion SF{sub 6} plasmas have been made. Different applications are proposed for the discovered features of the controlled deposition from ion-ion plasmas, from Li-sulphur rechargeable batteries manufacturing and nanofluidics issues to the applications for microelectronics, including low-k materials formation.

Rafalskyi, Dmytro; Bredin, Jérôme; Aanesland, Ane [LPP, CNRS–Ecole Polytechnique, 91128 Palaiseau cedex (France)] [LPP, CNRS–Ecole Polytechnique, 91128 Palaiseau cedex (France)

2013-12-07T23:59:59.000Z

231

NREL Enhances the Performance of a Lithium-Ion Battery Cathode (Fact Sheet), Innovation: The Spectrum of Clean Energy Innovation, NREL (National Renewable Energy Laboratory)  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Enhances the Performance of Enhances the Performance of a Lithium-Ion Battery Cathode Scientists from NREL and the University of Toledo have combined theoretical and experimental studies to demonstrate a promising approach to significantly enhance the performance of lithium iron phosphate (LiFePO 4 ) cathodes for lithium-ion batteries. In the most common commercial design for lithium-ion (Li-ion) batteries, the positive electrode or cathode is lithium cobalt oxide (LiCoO 2 ). This material exhibits high electrical conductivity, meaning that it can transport electrons very effectively. However, the cobalt in LiCoO 2 has at least two detrimental characteristics-it is relatively expensive, which leads to higher battery costs, and it is toxic, which poses potential environmental and safety issues.

232

LiFePO4 batteries with enhanced lithium-ion-diffusion ability due to graphene addition  

Science Journals Connector (OSTI)

In this study, graphene was added to LiFePO4 via a hydrothermal method to improve the lithium-ion-diffusion ability of LiFePO4. The influence of graphene addition on LiFePO4 was studied by X-ray diffraction (XRD)...

Van Hiep Nguyen; Hal-Bon Gu

2014-10-01T23:59:59.000Z

233

CuGeO3 nanowires covered with graphene as anode materials of lithium ion batteries with enhanced  

E-Print Network [OSTI]

CuGeO3 nanowires covered with graphene as anode materials of lithium ion batteries with enhanced one-step route was developed to synthesize crystalline CuGeO3 nanowire/graphene composites (CGCs). Crystalline CuGeO3 nanowires were tightly covered and anchored by graphene sheets, forming a layered structure

Lin, Zhiqun

234

Temperature-Dependent Battery Models for High-Power Lithium-Ion Batteries  

SciTech Connect (OSTI)

In this study, two battery models for a high-power lithium ion (Li-Ion) cell were compared for their use in hybrid electric vehicle simulations in support of the U.S. Department of Energy's Hybrid Electric Vehicle Program. Saft America developed the high-power Li-Ion cells as part of the U.S. Advanced Battery Consortium/U.S. Partnership for a New Generation of Vehicles programs. Based on test data, the National Renewable Energy Laboratory (NREL) developed a resistive equivalent circuit battery model for comparison with a 2-capacitance battery model from Saft. The Advanced Vehicle Simulator (ADVISOR) was used to compare the predictions of the two models over two different power cycles. The two models were also compared to and validated with experimental data for a US06 driving cycle. The experimental voltages on the US06 power cycle fell between the NREL resistive model and Saft capacitance model predictions. Generally, the predictions of the two models were reasonably close to th e experimental results; the capacitance model showed slightly better performance. Both battery models of high-power Li-Ion cells could be used in ADVISOR with confidence as accurate battery behavior is maintained during vehicle simulations.

Johnson, V.H.; Pesaran, A.A. (National Renewable Energy Laboratory); Sack, T. (Saft America)

2001-01-10T23:59:59.000Z

235

Lithium Ion Transport Mechanism in Ternary Polymer Electrolyte-Ionic Liquid Mixtures - A Molecular Dynamics Simulation Study  

E-Print Network [OSTI]

The lithium transport mechanism in ternary polymer electrolytes, consisting of PEO/LiTFSI and various fractions of the ionic liquid N-methyl-N-propylpyrrolidinium bis(trifluoromethane)sulfonimide, are investigated by means of MD simulations. This is motivated by recent experimental findings [Passerini et al., Electrochim. Acta 2012, 86, 330-338], which demonstrated that these materials display an enhanced lithium mobility relative to their binary counterpart PEO/LiTFSI. In order to grasp the underlying microscopic scenario giving rise to these observations, we employ an analytical, Rouse-based cation transport model [Maitra at al., PRL 2007, 98, 227802], which has originally been devised for conventional polymer electrolytes. This model describes the cation transport via three different mechanisms, each characterized by an individual time scale. It turns out that also in the ternary electrolytes essentially all lithium ions are coordinated by PEO chains, thus ruling out a transport mechanism enhanced by the presence of ionic-liquid molecules. Rather, the plasticizing effect of the ionic liquid contributes to the increased lithium mobility by enhancing the dynamics of the PEO chains and consequently also the motion of the attached ions. Additional focus is laid on the prediction of lithium diffusion coefficients from the simulation data for various chain lengths and the comparison with experimental data, thus demonstrating the broad applicability of our approach.

Diddo Diddens; Andreas Heuer

2012-11-14T23:59:59.000Z

236

Graphene/silicon nanocomposite anode with enhanced electrochemical stability for lithium-ion battery applications  

Science Journals Connector (OSTI)

Abstract A graphene/silicon nanocomposite has been synthesized, characterized and tested as anode active material for lithium-ion batteries. A morphologically stable composite has been obtained by dispersing silicon nanoparticles in graphene oxide, previously functionalized with low-molecular weight polyacrylic acid, in eco-friendly, low-cost solvent such as ethylene glycol. The use of functionalized graphene oxide as substrate for the dispersion avoids the aggregation of silicon particles during the synthesis and decreases the detrimental effect of graphene layers re-stacking. Microwave irradiation of the suspension, inducing reduction of graphene oxide, and the following thermal annealing of the solid powder obtained by filtration, yield a graphene/silicon composite material with optimized morphology and properties. Composite anodes, prepared with high-molecular weight polyacrylic acid as green binder, exhibited high and stable reversible capacity values, of the order of 1000 mAh g?1, when cycled using vinylene carbonate as electrolyte additive. After 100 cycles at a current of 500 mA g?1, the anode showed a discharge capacity retention of about 80%. The mechanism of reversible lithium uptake is described in terms of Li–Si alloying/dealloying reaction. Comparison of the impedance responses of cells tested in electrolytes with or without vinylene carbonate confirms the beneficial effects of the additive in stabilizing the composite anode.

F. Maroni; R. Raccichini; A. Birrozzi; G. Carbonari; R. Tossici; F. Croce; R. Marassi; F. Nobili

2014-01-01T23:59:59.000Z

237

Simulation of Electrolyte Composition Effects on High Energy Lithium-Ion Cells  

SciTech Connect (OSTI)

An important feature of the DUALFOIL model for simulation of lithium-ion cells [1,2] is rigorous accounting for non-ideal electrolyte properties. Unfortunately, data are available on only a few electrolytes [3,4]. However, K. Gering has developed a model for estimation of electrolyte properties [5] and recently generated complete property sets (density, conductivity, activity coefficient, diffusivity, transport number) as a function of temperature and salt concentration. Here we use these properties in an enhanced version of the DUALFOIL model called DISTNP, available in Battery Design Studio [6], to examine the effect of different electrolytes on cell performance. Specifically, the behavior of a high energy LiCoO2/graphite 18650-size cell is simulated. The ability of Battery Design Studio to si

K. Gering

2014-09-01T23:59:59.000Z

238

Differential thermal voltammetry for tracking of degradation in lithium-ion batteries  

Science Journals Connector (OSTI)

Abstract Monitoring of lithium-ion batteries is of critical importance in electric vehicle applications in order to manage the operational condition of the cells. Measurements on a vehicle often involve current, voltage and temperature which enable in-situ diagnostic techniques. This paper presents a novel diagnostic technique, termed differential thermal voltammetry, which is capable of monitoring the state of the battery using voltage and temperature measurements in galvanostatic operating modes. This tracks battery degradation through phase transitions, and the resulting entropic heat, occurring in the electrodes. Experiments to monitor battery degradation using the new technique are compared with a pseudo-2D cell model. Results show that the differential thermal voltammetry technique provides information comparable to that of slow rate cyclic voltammetry at shorter timescale and with load conditions easier to replicate in a vehicle.

Billy Wu; Vladimir Yufit; Yu Merla; Ricardo F. Martinez-Botas; Nigel P. Brandon; Gregory J. Offer

2015-01-01T23:59:59.000Z

239

Processes for making dense, spherical active materials for lithium-ion cells  

DOE Patents [OSTI]

Processes are provided for making dense, spherical mixed-metal carbonate or phosphate precursors that are particularly well suited for the production of active materials for electrochemical devices such as lithium ion secondary batteries. Exemplified methods include precipitating dense, spherical particles of metal carbonates or metal phosphates from a combined aqueous solution using a precipitating agent such as ammonium hydrogen carbonate, sodium hydrogen carbonate, or a mixture that includes sodium hydrogen carbonate. Other exemplified methods include precipitating dense, spherical particles of metal phosphates using a precipitating agent such as ammonium hydrogen phosphate, ammonium dihydrogen phosphate, sodium phosphate, sodium hydrogen phosphate, sodium dihydrogen phosphate, or a mixture of any two or more thereof. Further provided are compositions of and methods of making dense, spherical metal oxides and metal phosphates using the dense, spherical metal precursors. Still further provided are electrodes and batteries using the same.

Kang, Sun-Ho (Naperville, IL); Amine, Khalil (Downers Grove, IL)

2011-11-22T23:59:59.000Z

240

Fracture of electrodes in lithium-ion batteries caused by fast charging Kejie Zhao, Matt Pharr, Joost J. Vlassak, and Zhigang Suoa  

E-Print Network [OSTI]

Fracture of electrodes in lithium-ion batteries caused by fast charging Kejie Zhao, Matt Pharr distribution of lithium results in stresses that may cause the particle to fracture. The distributions of the particle, below which fracture is averted. © 2010 American Institute of Physics. doi:10.1063/1.3492617 I

Note: This page contains sample records for the topic "lithium ion nano" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

Characterization of penetration induced thermal runaway propagation process within a large format lithium ion battery module  

Science Journals Connector (OSTI)

Abstract This paper investigates the mechanisms of penetration induced thermal runaway (TR) propagation process within a large format lithium ion battery pack. A 6-battery module is built with 47 thermocouples installed at critical positions to record the temperature profiles. The first battery of the module is penetrated to trigger a TR propagation process. The temperature responses, the voltage responses and the heat transfer through different paths are analyzed and discussed to characterize the underlying physical behavior. The temperature responses show that: 1) Compared with the results of TR tests using accelerating rate calorimetry (ARC) with uniform heating, a lower onset temperature and a shorter TR triggering time are observed in a penetration induced TR propagation test due to side heating. 2) The maximum temperature difference within a battery can be as high as 791.8 °C in a penetration induced TR propagation test. The voltage responses have a 5-stage feature, indicating that the TR happens in sequence for the two pouch cells packed inside a battery. The heat transfer analysis shows that: 1) 12% of the total heat released in TR of a battery is enough to trigger the adjacent battery to TR. 2) The heat transferred through the pole connector is only about 1/10 of that through the battery shell. 3) The fire has little influence on the TR propagation, but may cause significant damage on the accessories located above the battery. The results can enhance our understandings of the mechanisms of TR propagation, and provide important guidelines in pack design for large format lithium ion battery.

Xuning Feng; Jing Sun; Minggao Ouyang; Fang Wang; Xiangming He; Languang Lu; Huei Peng

2015-01-01T23:59:59.000Z

242

Microwave-assisted hydrothermal synthesis of porous SnO{sub 2} nanotubes and their lithium ion storage properties  

SciTech Connect (OSTI)

Porous SnO{sub 2} nanotubes have been synthesized by a rapid microwave-assisted hydrothermal process followed by annealing in air. The detailed morphological and structural studies indicate that the SnO{sub 2} tubes typically have diameters from 200 to 400 nm, lengths from 0.5 to 1.5 {mu}m and wall thicknesses from 50 to 100 nm. The SnO{sub 2} nanotubes are self-assembled by interconnected nanocrystals with sizes {approx}8 nm resulting in a specific surface area of {approx}54 m{sup 2} g{sup -1}. The pristine SnO{sub 2} nanotubes are used to fabricate lithium half cells to evaluate their lithium ion storage properties. The porous SnO{sub 2} nanotubes are characteristic with high lithium ion storage capacity, that is found to be 1258, 951, 757, 603, 458, and 288 mAh g{sup -1}, at 0.1, 0.2, 0.5, 1, 2, and 4C, respectively. The enhanced electrochemical properties of the SnO{sub 2} nanotubes can be ascribed to their unique geometry and porous structures. - Graphical abstract: Porous SnO{sub 2} nanotubes are synthesized by a fast microwave-assisted hydrothermal process and exhibit high lithium ion storage properties due to their unique geometry and porous characteristics. Highlights: Black-Right-Pointing-Pointer A microwave-assisted hydrothermal method was used to prepare porous SnO{sub 2} nanotubes. Black-Right-Pointing-Pointer The porous SnO{sub 2} nanotubes have abundant mesopores on their tube walls. Black-Right-Pointing-Pointer The porous SnO{sub 2} nanotubes possess high lithium ion storage properties. Black-Right-Pointing-Pointer Our results may promote the development of high-performance anode materials.

Wang, H.E., E-mail: hongen.wang@gmail.com [Department of Physics and Materials Science, City University of Hong Kong (Hong Kong); Center of Super-Diamond and Advanced Films (COSDAF), City University of Hong Kong (Hong Kong); Xi, L.J.; Ma, R.G. [Department of Physics and Materials Science, City University of Hong Kong (Hong Kong); Lu, Z.G. [School of Chemistry and Chemical Engineering, Central South University, Changsha 410083 (China); Chung, C.Y. [Department of Physics and Materials Science, City University of Hong Kong (Hong Kong); Bello, I. [Department of Physics and Materials Science, City University of Hong Kong (Hong Kong); Center of Super-Diamond and Advanced Films (COSDAF), City University of Hong Kong (Hong Kong); Zapien, J.A., E-mail: apjazs@cityu.edu.hk [Department of Physics and Materials Science, City University of Hong Kong (Hong Kong); Center of Super-Diamond and Advanced Films (COSDAF), City University of Hong Kong (Hong Kong)

2012-06-15T23:59:59.000Z

243

Biased interface between solid ion conductor LiBH{sub 4} and lithium metal: A first principles molecular dynamics study  

SciTech Connect (OSTI)

We use first-principles molecular dynamics to study the electrochemical solid-solid interface between lithium metal and lithium electrolyte LiBH{sub 4}. An external bias is applied by using an effective screening medium. We observe large polarization in the LiBH{sub 4}, because the lithium cations in LiBH{sub 4} are shifted more on one side of the double-well potential of Li{sup +}. This results in a large potential drop in the interface region and a large double-layer capacity corresponding to ca. 70 ?F/cm{sup 2}. H-coordination to the Li atoms plays an important role in the charge-transfer reaction and ion transfer.

Ikeshoji, Tamio [Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Sendai 980-8577 (Japan) [Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Sendai 980-8577 (Japan); Nanosystem Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), AIST Tsukuba Central 2, 1-1-1 Umezono, Tsukuba 305-8568 (Japan); Ando, Yasunobu; Otani, Minoru; Tsuchida, Eiji [Nanosystem Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), AIST Tsukuba Central 2, 1-1-1 Umezono, Tsukuba 305-8568 (Japan)] [Nanosystem Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), AIST Tsukuba Central 2, 1-1-1 Umezono, Tsukuba 305-8568 (Japan); Takagi, Shigeyuki; Matsuo, Motoaki [Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Sendai 980-8577 (Japan)] [Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Sendai 980-8577 (Japan); Orimo, Shin-ichi [Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Sendai 980-8577 (Japan) [Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Sendai 980-8577 (Japan); WPI-Advanced Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Sendai 980-8577 (Japan)

2013-09-23T23:59:59.000Z

244

r XXXX American Chemical Society A dx.doi.org/10.1021/nl201070c |Nano Lett. XXXX, XXX, 000000 pubs.acs.org/NanoLett  

E-Print Network [OSTI]

-based ultracapacitors,24 electrodes for batteries,25�27 electrochemical sensors,28�30 and graphene-based composites as functionalized graphene sheets (FGSs). FGSs have been used in various applications: In lithium ion batteries­000 LETTER pubs.acs.org/NanoLett Local Voltage Drop in a Single Functionalized Graphene Sheet Characterized

Aksay, Ilhan A.

245

Temporal stability of Y Ba Cu O nano Josephson junctions from ion irradiation  

E-Print Network [OSTI]

stability of Y-Ba-Cu-O nano Josephson junctions from ionion irradiation through a nano-scale implant mask fabricateda two-dimensional array,” Nano Letters, 9, pp. 3581-3585, [

Cybart, Shane A.

2014-01-01T23:59:59.000Z

246

Laterally confined graphene nanosheets and graphene/SnO2 composites as high-rate anode materials for lithium-ion batteries  

Science Journals Connector (OSTI)

High-rate anode materials for lithium-ion batteries are desirable for applications that require high ... demonstrate the advantageous rate capability of few-layered graphene nanosheets, with widths of 100–200 nm,...

Zhiyong Wang; Hao Zhang; Nan Li; Zujin Shi; Zhennan Gu; Gaoping Cao

2010-10-01T23:59:59.000Z

247

A facile bubble-assisted synthesis of porous Zn ferrite hollow microsphere and their excellent performance as an anode in lithium ion battery  

Science Journals Connector (OSTI)

Pure porous hollow Zn ferrite (ZnFe2O4) microspheres have been successfully synthesized by a facile bubble assisted method in the presence of ammonium acetate (NH4Ac) as an anode material in lithium ion battery. ...

Lingmin Yao; Xianhua Hou; Shejun Hu; Qiang Ru…

2013-07-01T23:59:59.000Z

248

Numerical investigation of thermal behaviors in lithium-ion battery stack discharge  

Science Journals Connector (OSTI)

Abstract Thermal management is critically important to maintain the performance and prolong the lifetime of a lithium-ion (Li-ion) battery. In this paper, a two-dimensional and transient model has been developed for the thermal management of a 20-flat-plate-battery stack, followed by comprehensive numerical simulations to study the influences of ambient temperature, Reynolds number, and discharge rate on the temperature distribution in the stack with different cooling materials. The simulation results indicate that liquid cooling is generally more effective in reducing temperature compared to phase-change material, while the latter can lead to more homogeneous temperature distribution. Fast and deep discharge should be avoided, which generally yields high temperature beyond the acceptable range regardless of cooling materials. At low or even subzero ambient temperatures, air cooling is preferred over liquid cooling because heat needs to be retained rather than removed. Such difference becomes small when the ambient temperature increases to a mild level. The effects of Reynolds number are apparent in liquid cooling but negligible in air cooling. Choosing appropriate cooling material and strategy is particularly important in low ambient temperature and fast discharge cases. These findings improve the understanding of battery stack thermal behaviors and provide the general guidelines for thermal management system. The present model can also be used in developing control system to optimize battery stack thermal behaviors.

Rui Liu; Jixin Chen; Jingzhi Xun; Kui Jiao; Qing Du

2014-01-01T23:59:59.000Z

249

Public lecture (Dec. 11, 2013): "The Nature of Nano" | Argonne National  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Public lecture (Dec. 11, 2013): "The Nature of Nano" Public lecture (Dec. 11, 2013): "The Nature of Nano" Share Browse By - Any - Energy -Energy efficiency --Vehicles ---Alternative fuels ---Automotive engineering ---Diesel ---Electric drive technology ---Hybrid & electric vehicles ---Powertrain research --Building design ---Construction --Manufacturing -Energy sources --Renewable energy ---Bioenergy ---Solar energy --Fossil fuels ---Natural Gas --Nuclear energy ---Nuclear energy modeling & simulation ---Nuclear fuel cycle ---Reactors -Energy usage --Energy storage ---Batteries ----Lithium-ion batteries ----Lithium-air batteries --Electricity transmission --Smart Grid Environment -Biology --Computational biology --Environmental biology ---Metagenomics ---Terrestrial ecology --Molecular biology

250

Ultra Strong Silicon-Coated Carbon Nanotube Nonwoven Fabric as a Multifunctional Lithium-Ion Battery Anode  

Science Journals Connector (OSTI)

Ultra Strong Silicon-Coated Carbon Nanotube Nonwoven Fabric as a Multifunctional Lithium-Ion Battery Anode ... Developing technologies to produce flexible batteries with good performance in combination with high specific strength is strongly desired for weight- and power-sensitive applications such as unmanned or aerospace vehicles, high-performance ground vehicles, robotics, and smart textiles. ... Ferrocene dissolved in the fuel served as the source for iron catalyst particles. ...

Kara Evanoff; Jim Benson; Mark Schauer; Igor Kovalenko; David Lashmore; W. Jud Ready; Gleb Yushin

2012-10-17T23:59:59.000Z

251

In situ deposition method preparation of Li4Ti5O12–SnO2 composite materials for lithium ion batteries  

Science Journals Connector (OSTI)

A Li4Ti5O12–SnO2 composite anode material for lithium-ion batteries has been prepared by loading various amounts of nano-SnO2 on Li4Ti5O12 to obtain composite materials with improved electrochemical performance relative to Li4Ti5O12 and SnO2. The composite materials were characterized by XRD, IR and SEM. The results indicated that SnO2 particles have encapsulated on the surface of the Li4Ti5O12 uniformly and tightly. The influence of SnO2 proportion on the electrochemical properties of Li4Ti5O12–SnO2 composite material was investigated and discussed. The results showed that Li4Ti5O12–SnO2 (5%) has the best cycling behavior among all the samples. At a current rate of 0.5 mA cm?2, the material delivered a discharge capacity of 189 mAh g?1 after 42 cycles. Electrochemical results indicated that the Li4Ti5O12–SnO2 composites increased the reversible capacity of Li4Ti5O12 and cycling reliability of the SnO2 anode material. It suggests the existence of synergistic interaction between Li4Ti5O12 and SnO2 and that the capacity of the composite is not a simple weighted sum of the capacities of the individual components.

Yan-Jing Hao; Qiong-Yu Lai; Yuan-Duan Chen; Ji-Zheng Lu; Xiao-Yang Ji

2008-01-01T23:59:59.000Z

252

Influence of heat-treatment on lithium ion anode properties of mesoporous carbons with nanosheet-like walls  

SciTech Connect (OSTI)

Highlights: ? Mesoporous carbons possess unique nanosheet-like pore walls which can be changed by heat treatment. ? Lithium ion anode properties of mesoporous carbons could be influenced by the nanosheet-like walls. ? Mesoporous carbons with nanosheet-like walls exhibit enhanced electrochemical properties LIBs. -- Abstract: Mesoporous carbons (MCs) with nanosheet-like walls have been prepared as electrodes for lithium-ion batteries by a simple one-step infiltrating method under the action of capillary flow. The influence of heat treatment temperature on the surface topography, pore/phase structure and anode performances of as-prepared materials has been investigated. The results reveal that melted liquid-crystal polycyclic aromatic hydrocarbons could be anchored on liquid/silica interfaces by molecule engineering. After carbonization, the nanosheets are formed as the pore walls of MCs and are perpendicular to the long axis of pores. The anode properties demonstrate that C-1200 displays higher reversible capacitance than those treated in higher temperature. The rate performances of C-1200 and C-1800 are similar and more excellent than that of C-2400. These improved lithium ion anode properties could be attributed to the nanosheet-like walls of MCs which can be influenced by the heat treatment temperature.

Zeng, Fanyan [College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082 (China)] [College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082 (China); Hou, Zhaohui, E-mail: zhqh96@163.com [College of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006 (China)] [College of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006 (China); He, Binhong [College of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006 (China)] [College of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006 (China); Ge, Chongyong; Cao, Jianguo [College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082 (China)] [College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082 (China); Kuang, Yafei, E-mail: yafeik@163.com [College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082 (China)] [College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082 (China)

2012-08-15T23:59:59.000Z

253

Interface Modifications by Anion Acceptors for High Energy Lithium...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Modifications by Anion Acceptors for High Energy Lithium Ion Batteries. Interface Modifications by Anion Acceptors for High Energy Lithium Ion Batteries. Abstract: Li-rich, Mn-rich...

254

Interface Modifications by Anion Acceptors for High Energy Lithium Ion Batteries  

SciTech Connect (OSTI)

Li-rich, Mn-rich (LMR) layered composite, for example, Li[Li0.2Ni0.2Mn0.6]O2, has attracted extensive interests because of its highest energy density among all cathode candidates for lithium ion batteries (LIB). However, capacity degradation and voltage fading are the major challenges associated with this series of layered composite, which plagues its practical application. Herein, we demonstrate that anion receptor, tris(pentafluorophenyl)borane ((C6F5)3B, TPFPB), substantially enhances the cycling stability and alleviates the voltage degradation of LMR. In the presence of 0.2 M TPFPB, Li[Li0.2Ni0.2Mn0.6]O2 shows capacity retention of 81% after 300 cycles. It is proposed that TPFPB effectively confines the highly active oxygen species released from structural lattice through its strong coordination ability and high oxygen solubility. The electrolyte decomposition caused by the oxygen species attack is therefore largely mitigated, forming reduced amount of byproducts on the cathode surface. Additionally, other salts such as insulating LiF derived from electrolyte decomposition are also soluble in the presence of TPFPB. The collective effects of TPFPB mitigate the accumulation of parasitic reaction products and stabilize the interfacial resistances between cathode and electrolyte during extended cycling, thus significantly improving the cycling performance of Li[Li0.2Ni0.2Mn0.6]O2.

Zheng, Jianming; Xiao, Jie; Gu, Meng; Zuo, Pengjian; Wang, Chong M.; Zhang, Jiguang

2014-03-15T23:59:59.000Z

255

Calendar Life Studies of Advanced Technology Development Program Gen 1 Lithium Ion Batteries  

SciTech Connect (OSTI)

This report presents the test results of a special calendar-life test conducted on 18650-size, prototype, lithium-ion battery cells developed to establish a baseline chemistry and performance for the Advanced Technology Development Program. As part of electrical performance testing, a new calendar-life test protocol was used. The test consisted of a once-per-day discharge and charge pulse designed to have minimal impact on the cell yet establish the performance of the cell over a period of time such that the calendar life of the cell could be determined. The calendar life test matrix included two states of charge (i.e., 60 and 80%) and four temperatures (40, 50, 60, and 70°C). Discharge and regen resistances were calculated from the test data. Results indicate that both discharge and regen resistance increased nonlinearly as a function of the test time. The magnitude of the discharge and regen resistance depended on the temperature and state of charge at which the test was conducted. The calculated discharge and regen resistances were then used to develop empirical models that may be useful to predict the calendar life or the cells.

Wright, Randy Ben; Motloch, Chester George

2001-03-01T23:59:59.000Z

256

Cycle Life Studies of Advanced Technology Development Program Gen 1 Lithium Ion Batteries  

SciTech Connect (OSTI)

This report presents the test results of a special calendar-life test conducted on 18650-size, prototype, lithium-ion battery cells developed to establish a baseline chemistry and performance for the Advanced Technology Development Program. As part of electrical performance testing, a new calendar-life test protocol was used. The test consisted of a once-per-day discharge and charge pulse designed to have minimal impact on the cell yet establish the performance of the cell over a period of time such that the calendar life of the cell could be determined. The calendar life test matrix included two states of charge (i.e., 60 and 80%) and four temperatures (40, 50, 60, and 70°C). Discharge and regen resistances were calculated from the test data. Results indicate that both discharge and regen resistance increased nonlinearly as a function of the test time. The magnitude of the discharge and regen resistance depended on the temperature and state of charge at which the test was conducted. The calculated discharge and regen resistances were then used to develop empirical models that may be useful to predict the calendar life or the cells.

Wright, Randy Ben; Motloch, Chester George

2001-03-01T23:59:59.000Z

257

Characterization of high-power lithium-ion cells-performance and diagnostic analysis  

SciTech Connect (OSTI)

Lithium-ion cells, with graphite anodes and LiNi0.8Co0.15Al0.05O2 cathodes, were cycled for up to 1000 cycles over different ranges of SOC and temperatures. The decline in cell performance increases with the span of SOC and temperature during cycling. Capacity fade was caused by a combination of the loss of cycleable Li and degradation of the cathode. The room temperature anodes showed SEI compositions and degrees of graphite disorder that correlated with the extent of the Li consumption, which was linear in cell test time. TEM of the cathodes showed evidence of crystalline defects, though no major new phases were identified, consistent with XRD. No evidence of polymeric deposits on the cathode particles (FTIR) was detected although both Raman and TEM showed evidence of P-containing deposits from electrolyte salt degradation. Raman microscopy showed differences in relative carbon contents of the cycled cathodes, which is blamed for part of the cathode degradation.

Striebel, K.A.; Shim, J.; Kostecki, R.; Richardson, T.J.; Ross, P.N.; Song, X.; Zhuang, G.V.

2003-11-25T23:59:59.000Z

258

Thermo-electrochemical analysis of lithium ion batteries for space applications using Thermal Desktop  

Science Journals Connector (OSTI)

Abstract Lithium-ion batteries (LIBs) are replacing the Nickel–Hydrogen batteries used on the International Space Station (ISS). Knowing that LIB efficiency and survivability are greatly influenced by temperature, this study focuses on the thermo-electrochemical analysis of \\{LIBs\\} in space orbit. Current finite element modeling software allows for advanced simulation of the thermo-electrochemical processes; however the heat transfer simulation capabilities of said software suites do not allow for the extreme complexities of orbital-space environments like those experienced by the ISS. In this study, we have coupled the existing thermo-electrochemical models representing heat generation in \\{LIBs\\} during discharge cycles with specialized orbital-thermal software, Thermal Desktop (TD). Our model's parameters were obtained from a previous thermo-electrochemical model of a 185 Amp-Hour (Ah) LIB with 1–3 C (C) discharge cycles for both forced and natural convection environments at 300 K. Our TD model successfully simulates the temperature vs. depth-of-discharge (DOD) profiles and temperature ranges for all discharge and convection variations with minimal deviation through the programming of FORTRAN logic representing each variable as a function of relationship to DOD. Multiple parametrics were considered in a second and third set of cases whose results display vital data in advancing our understanding of accurate thermal modeling of LIBs.

W. Walker; H. Ardebili

2014-01-01T23:59:59.000Z

259

Novel thermal management system design methodology for power lithium-ion battery  

Science Journals Connector (OSTI)

Abstract Battery packs conformed by large format lithium-ion cells are increasingly being adopted in hybrid and pure electric vehicles in order to use the energy more efficiently and for a better environmental performance. Safety and cycle life are two of the main concerns regarding this technology, which are closely related to the cell's operating behavior and temperature asymmetries in the system. Therefore, the temperature of the cells in battery packs needs to be controlled by thermal management systems (TMSs). In the present paper an improved design methodology for developing \\{TMSs\\} is proposed. This methodology involves the development of different mathematical models for heat generation, transmission, and dissipation and their coupling and integration in the battery pack product design methodology in order to improve the overall safety and performance. The methodology is validated by comparing simulation results with laboratory measurements on a single module of the battery pack designed at IK4-IKERLAN for a traction application. The maximum difference between model predictions and experimental temperature data is 2 °C. The models developed have shown potential for use in battery thermal management studies for EV/HEV applications since they allow for scalability with accuracy and reasonable simulation time.

Nerea Nieto; Luis Díaz; Jon Gastelurrutia; Francisco Blanco; Juan Carlos Ramos; Alejandro Rivas

2014-01-01T23:59:59.000Z

260

Computational, electrochemical and {sup 7}Li NMR studies of lithiated disordered carbons electrodes in lithium ion cells.  

SciTech Connect (OSTI)

Disordered carbons that deliver high reversible capacity in electrochemical cells have been synthesized by using inorganic clays as templates to control the pore size and the surface area. The capacities obtained were much higher than those calculated if the resultant carbon had a graphitic-like structure. Computational chemistry was used to investigate the nature of lithium bonding in a carbon lattice unlike graphite. The lithium intercalated fullerene Li{sub n}-C{sub 60} was used as a model for our (non-graphitic) disordered carbon lattice. A dilithium-C{sub 60} system with a charge and multiplicity of (0,1) and a trilithium-C{sub 60} system with a charge and multiplicity of (0,4) were investigated. The spatial distribution of lithium ions in an electrochemical cell containing this novel disordered carbon material was investigated in situ by Li-7 NMR using an electrochemical cell that was incorporated into a toroid cavity nuclear magnetic resonance (NMR) imager. The concentration of solvated Li{sup +} ions in the carbon anode appears to be larger than in the bulk electrolyte, is substantially lower near the copper/carbon interface, and does not change with cell charging.

Sandi, G.; Gerald, R., II; Scanlon, L. G.; Carrado, K. A.; Winans, R. E.

1998-01-07T23:59:59.000Z

Note: This page contains sample records for the topic "lithium ion nano" from the National Library of EnergyBeta (NLEBeta).
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to obtain the most current and comprehensive results.


261

High-performance tin oxide-nitrogen doped graphene aerogel hybrids as anode materials for lithium-ion batteries  

Science Journals Connector (OSTI)

Abstract Tin dioxide nanoparticles on nitrogen doped graphene aerogel (SnO2-NGA) hybrid are synthesized by one-step hydrothermal method and successfully applied in lithium-ion batteries as a free-standing anode. The electrochemical performance of SnO2-NGA hybrid is investigated by galvanostatic charge–discharge cycling, rate capability test, cyclic voltammetry and electrochemical impedance spectroscopy. It is found that the SnO2-NGA hybrid with freestanding spongy-like structure exhibit remarkable lithium storage capacity (1100 mAh g?1 after 100 cycles), good cycling stability and high rate capability. The outstanding performance is attributed to the uniform SnO2 nanoparticles, unique spongy-like structure and N doping defect for Li+ diffusion.

Chunhui Tan; Jing Cao; Abdul Muqsit Khattak; Feipeng Cai; Bo Jiang; Gai Yang; Suqin Hu

2014-01-01T23:59:59.000Z

262

Gram-Scale Synthesis of Graphene-Mesoporous SnO2 Composite as Anode for Lithium-ion Batteries  

Science Journals Connector (OSTI)

Abstract The gram-scale synthesis of graphene based mesoporous SnO2 composite (G-M-SnO2) has been successfully realized based on kirkendall effect. When used as anode for lithium ion batteries, it delivers a high reversible capacity of 1354 mAhg?1 after 50 cycles at 100 mAg?1 and excellent rate capability of 664 mAhg?1 at 2 Ag?1. The outstanding lithium storage performance mainly results from the synergistic effect of the ultrasmall SnO2 and conductive graphene nanoparticles, which not only enhanced the conductivity of the whole electrode but also provide buffer matrix for the expansion of SnO2 nanoparticles during charge-discharge process. Furthermore, the ultra-small size of SnO2 shortens the diffusion length of Li+/e? in SnO2.

Xiaowu Liu; Xiongwu Zhong; Zhenzhong Yang; Fusen Pan; Lin Gu; Yan Yu

2015-01-01T23:59:59.000Z

263

STUDIES ON TWO CLASSES OF POSITIVE ELECTRODE MATERIALS FOR LITHIUM-ION BATTERIES  

SciTech Connect (OSTI)

The development of advanced lithium-ion batteries is key to the success of many technologies, and in particular, hybrid electric vehicles. In addition to finding materials with higher energy and power densities, improvements in other factors such as cost, toxicity, lifetime, and safety are also required. Lithium transition metal oxide and LiFePO{sub 4}/C composite materials offer several distinct advantages in achieving many of these goals and are the focus of this report. Two series of layered lithium transition metal oxides, namely LiNi{sub 1/3}Co{sub 1/3-y}M{sub y}Mn{sub 1/3}O{sub 2} (M=Al, Co, Fe, Ti) and LiNi{sub 0.4}Co{sub 0.2-y}M{sub y}Mn{sub 0.4}O{sub 2} (M = Al, Co, Fe), have been synthesized. The effect of substitution on the crystal structure is related to shifts in transport properties and ultimately to the electrochemical performance. Partial aluminum substitution creates a high-rate positive electrode material capable of delivering twice the discharge capacity of unsubstituted materials. Iron substituted materials suffer from limited electrochemical performance and poor cycling stability due to the degradation of the layered structure. Titanium substitution creates a very high rate positive electrode material due to a decrease in the anti-site defect concentration. LiFePO{sub 4} is a very promising electrode material but suffers from poor electronic and ionic conductivity. To overcome this, two new techniques have been developed to synthesize high performance LiFePO{sub 4}/C composite materials. The use of graphitization catalysts in conjunction with pyromellitic acid leads to a highly graphitic carbon coating on the surface of LiFePO{sub 4} particles. Under the proper conditions, the room temperature electronic conductivity can be improved by nearly five orders of magnitude over untreated materials. Using Raman spectroscopy, the improvement in conductivity and rate performance of such materials has been related to the underlying structure of the carbon films. The combustion synthesis of LiFePO4 materials allows for the formation of nanoscale active material particles with high-quality carbon coatings in a quick and inexpensive fashion. The carbon coating is formed during the initial combustion process at temperatures that exceed the thermal stability limit of LiFePO{sub 4}. The olivine structure is then formed after a brief calcination at lower temperatures in a controlled environment. The carbon coating produced in this manner has an improved graphitic character and results in superior electrochemical performance. The potential co-synthesis of conductive carbon entities, such as carbon nanotubes and fibers, is also briefly discussed.

Wilcox, James D.

2008-12-18T23:59:59.000Z

264

Lithium transition metal fluorophosphates (Li{sub 2}CoPO{sub 4}F and Li{sub 2}NiPO{sub 4}F) as cathode materials for lithium ion battery from atomistic simulation  

SciTech Connect (OSTI)

Lithium transition metal fluorophosphates (Li{sub 2}MPO{sub 4}F, M: Co and Ni) have been investigated from atomistic simulation. In order to predict the characteristics of these materials as cathode materials for lithium ion batteries, structural property, defect chemistry, and Li{sup +} ion transportation property are characterized. The core–shell model with empirical force fields is employed to reproduce the unit-cell parameters of crystal structure, which are in good agreement with the experimental data. In addition, the formation energies of intrinsic defects (Frenkel and antisite) are determined by energetics calculation. From migration energy calculations, it is found that these flurophosphates have a 3D Li{sup +} ion diffusion network forecasting good Li{sup +} ion conducting performances. Accordingly, we expect that this study provides an atomic scale insight as cathode materials for lithium ion batteries. - Graphical abstract: Lithium transition metal fluorophosphates (Li{sub 2}CoPO{sub 4}F and Li{sub 2}NiPO{sub 4}F). Display Omitted - Highlights: • Lithium transition metal fluorophosphates (Li{sub 2}MPO{sub 4}F, M: Co and Ni) are investigated from classical atomistic simulation. • The unit-cell parameters from experimental studies are reproduced by the core–shell model. • Li{sup +} ion conducting Li{sub 2}MPO{sub 4}F has a 3D Li{sup +} ion diffusion network. • It is predicted that Li/Co or Li/Ni antisite defects are well-formed at a substantial concentration level.

Lee, Sanghun, E-mail: sh0129.lee@samsung.com; Park, Sung Soo, E-mail: sung.s.park@samsung.com

2013-08-15T23:59:59.000Z

265

NREL: News - Winners for NREL's 24th Solar and Lithium Ion Car...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

batteries used in the competition are supplied by the DOE and teams purchase authorized solar panels, then design and build the rest of their cars themselves. Solar and lithium...

266

STUDIES ON TWO CLASSES OF POSITIVE ELECTRODE MATERIALS FOR LITHIUM-ION BATTERIES  

E-Print Network [OSTI]

4) Lithium Battery Cathode. Electrochemical and Solid-StateBattery Electrodes Utilizing Fibrous Conductive Additives. Electrochemical and Solid-Statesolid state, these effects can become limiting in some systems. 1.3 Battery

Wilcox, James D.

2010-01-01T23:59:59.000Z

267

Ab initio study of the migration of small polarons in olivine LixFePO4 and their association with lithium ions and vacancies  

Science Journals Connector (OSTI)

Using first-principles pseudopotential calculations, we investigate the formation and transport of small polarons in olivine LixFePO4. It is demonstrated that excess charge carriers form small polarons in LiFePO4 and FePO4. Lower limits to the activation barrier for small polaron migration are calculated within the GGA+U framework. Additionally, the interaction between lithium ions and polarons is investigated and estimates of binding energies between lithium ions and polarons are provided. Our results show that the binding energy between electron polarons and Li+ ions in FePO4 is lower than that between hole polarons and lithium vacancies in LiFePO4. The electron transfer rate is predicted to be higher in FePO4 than in LiFePO4.

Thomas Maxisch; Fei Zhou; Gerbrand Ceder

2006-03-13T23:59:59.000Z

268

On the properties of the negatively charged lithium ions and evaluation of the half-life of the ${}^{7}$Be atom(s)  

E-Print Network [OSTI]

Bound state properties of the ground $2^1S-$state in the four-electron lithium ion Li$^{-}$ (or ${}^{7}$Li$^{-}$ ion) are determined from the results of accurate, variational computations. We also determine such properties for the ground $2^1S-$state(s) in the ${}^{6}$Li$^{-}$ and ${}^{7}$Li$^{-}$ ions with the finite nuclear masses. Another closely related problem discussed in this study is accurate numerical evaluation of the half-life of the beryllium-7 isotope.

Frolov, Alexei M

2014-01-01T23:59:59.000Z

269

Synthesis of rock-salt type lithium borohydride and its peculiar Li{sup +} ion conduction properties  

SciTech Connect (OSTI)

The high energy density and excellent cycle performance of lithium ion batteries makes them superior to all other secondary batteries and explains why they are widely used in portable devices. However, because organic liquid electrolytes have a higher operating voltage than aqueous solution, they are used in lithium ion batteries. This comes with the risk of fire due to their flammability. Solid electrolytes are being investigated to find an alternative to organic liquid. However, the nature of the solid-solid point contact at the interface between the electrolyte and electrode or between the electrolyte grains is such that high power density has proven difficult to attain. We develop a new method for the fabrication of a solid electrolyte using LiBH{sub 4,} known for its super Li{sup +} ion conduction without any grain boundary contribution. The modifications to the conduction pathway achieved by stabilizing the high pressure form of this material provided a new structure with some LiBH{sub 4}, more suitable to the high rate condition. We synthesized the H.P. form of LiBH{sub 4} under ambient pressure by doping LiBH{sub 4} with the KI lattice by sintering. The formation of a KI - LiBH{sub 4} solid solution was confirmed both macroscopically and microscopically. The obtained sample was shown to be a pure Li{sup +} conductor despite its small Li{sup +} content. This conduction mechanism, where the light doping cation played a major role in ion conduction, was termed the “Parasitic Conduction Mechanism.” This mechanism made it possible to synthesize a new ion conductor and is expected to have enormous potential in the search for new battery materials.

Miyazaki, R.; Maekawa, H.; Takamura, H., E-mail: takamura@material.tohoku.ac.jp [Department of Materials Science, Graduate School of Engineering, Tohoku University Aramaki Aoba 6-6-11-301-2-2, Sendai, Miyagi 980-8579 (Japan)

2014-05-01T23:59:59.000Z

270

Solid-state lithium battery  

DOE Patents [OSTI]

The present invention is directed to a higher power, thin film lithium-ion electrolyte on a metallic substrate, enabling mass-produced solid-state lithium batteries. High-temperature thermodynamic equilibrium processing enables co-firing of oxides and base metals, providing a means to integrate the crystalline, lithium-stable, fast lithium-ion conductor lanthanum lithium tantalate (La.sub.1/3-xLi.sub.3xTaO.sub.3) directly with a thin metal foil current collector appropriate for a lithium-free solid-state battery.

Ihlefeld, Jon; Clem, Paul G; Edney, Cynthia; Ingersoll, David; Nagasubramanian, Ganesan; Fenton, Kyle Ross

2014-11-04T23:59:59.000Z

271

Fluorinated Phosphazene Co-solvents for Improved Thermal and Safety Performance in Lithium-Ion Battery Electrolytes  

SciTech Connect (OSTI)

The safety of lithium-ion batteries is coming under increased scrutiny as they are being adopted for large format applications especially in the vehicle transportation industry and for grid-scale energy storage. The primary short-comings of lithium-ion batteries are the flammability of the liquid electrolyte and sensitivity to high voltage and elevated temperatures. We have synthesized a series of non-flammable fluorinated phosphazene liquids and blended them with conventional carbonate solvents. While the use of these phosphazenes as standalone electrolytes is highly desirable, they simply do not satisfy all of the many requirements that must be met such as high LiPF6 solubility and low viscosity, thus we have used them as additives and co-solvents in blends with typical carbonates. The physical and electrochemical properties of the electrolyte blends were characterized, and then the blends were used to build 2032-type coin cells which were evaluated at constant current cycling rates from C/10 to C/1. We have evaluated the performance of the electrolytes by determining the conductivity, viscosity, flash point, vapor pressure, thermal stability, electrochemical window, cell cycling data, and the ability to form solid electrolyte interphase (SEI) films. This paper presents our results on a series of chemically similar fluorinated cyclic phosphazene trimers, the FM series, which has exhibited numerous beneficial effects on battery performance, lifetimes, and safety aspects.

Harry W. Rollins; Mason K. Harrup; Eric J. Dufek; David K. Jamison; Sergiy V. Sazhin; Kevin L. Gering; Dayna L. Daubaras

2014-10-01T23:59:59.000Z

272

Self-assembled porous MoO2/graphene microspheres towards high performance anodes for lithium ion batteries  

Science Journals Connector (OSTI)

Abstract Three dimensional (3D) porous self-assembled MoO2/graphene microspheres are successfully synthesized via microwave-assisted hydrothermal process in a short reaction time followed by thermal annealing. Such rationally designed multifunctional hybrid nanostructure is constructed from interconnected MoO2 nanoparticles (3–5 nm), which is self-assembled into ordered nanoporous microspheres via strong electrostatic attraction between graphene sheets and MoO2 nanoparticles. The MoO2/graphene hybrid structure delivers a high reversible capacity with significantly enhanced cycling stability (?1300 mAh g?1 after 80 cycles at C/10 rate) and excellent rate capability (913 and 390 mAh g?1 at 2C and 5C rates, respectively), when used as an anode material. The microspheres are interconnected and well encapsulated by the flexible graphene sheets, which not only accommodates large volume change but also increases the electrical conductivity of the hybrid structure. Moreover, nanoporous voids present in the 3D framework facilitate effective electrolyte penetration and make a direct contact with the active MoO2 nanoparticles, thereby greatly enhancing lithium ion transport. The strategic combination of self-assembly, nanoporous voids, 3D network and intriguing properties of graphene sheets provides excellent electrochemical performance as anode materials for Lithium ion battery applications.

Kowsalya Palanisamy; Yunok Kim; Hansu Kim; Ji Man Kim; Won-Sub Yoon

2015-01-01T23:59:59.000Z

273

Li3V2(PO4)3/graphene nanocomposite as a high performance cathode material for lithium ion battery  

Science Journals Connector (OSTI)

Abstract In this work, pure LVP nanoparticles and an LVP/graphene nanocomposite are successfully synthesized by a simple and cost effective polyol based solvothermal method, which can be easily scaled up. The synthesized nanocomposite contained small (30–60 nm) LVP nanoparticles completely and uniformly anchored on reduced graphene nanosheets. As a cathode for lithium ion batteries, the nanocomposite electrode delivered high reversible lithium storage capacity (189.8 mA h g?1 at 0.1 C), superior cycling stability (111.8 mA h g?1 at 0.1 C, 112.6 mA h g?1 at 5 C, and 103.4 mA h g?1 at 10 C after 80 cycles) and better C-rate capability (90.8 mA h g?1 at 10 C), whereas the pure LVP nanoparticles electrode delivered much less capacity at all investigated current rates. The enhanced electrochemical performance of the nanocomposite electrode can be attributed to the synergistic interaction between the uniformly dispersed LVP nanoparticles and the graphene nanosheets, which offers a large number of accessible active sites for the fast diffusion of Li ions, low internal resistance, high conductivity and more importantly, accommodates the large volume expansion/contraction during cycling.

Alok Kumar Rai; Trang Vu Thi; Jihyeon Gim; Sungjin Kim; Jaekook Kim

2015-01-01T23:59:59.000Z

274

An experimental study of heat pipe thermal management system with wet cooling method for lithium ion batteries  

Science Journals Connector (OSTI)

Abstract An effective battery thermal management (BTM) system is required for lithium-ion batteries to ensure a desirable operating temperature range with minimal temperature gradient, and thus to guarantee their high efficiency, long lifetime and great safety. In this paper, a heat pipe and wet cooling combined BTM system is developed to handle the thermal surge of lithium-ion batteries during high rate operations. The proposed BTM system relies on ultra-thin heat pipes which can efficiently transfer the heat from the battery sides to the cooling ends where the water evaporation process can rapidly dissipate the heat. Two sized battery packs, 3 Ah and 8 Ah, with different lengths of cooling ends are used and tested through a series high-intensity discharges in this study to examine the cooling effects of the combined BTM system, and its performance is compared with other four types of heat pipe involved BTM systems and natural convection cooling method. A combination of natural convection, fan cooling and wet cooling methods is also introduced to the heat pipe BTM system, which is able to control the temperature of battery pack in an appropriate temperature range with the minimum cost of energy and water spray.

Rui Zhao; Junjie Gu; Jie Liu

2015-01-01T23:59:59.000Z

275

Three-dimensional graphene/LiFePO{sub 4} nanostructures as cathode materials for flexible lithium-ion batteries  

SciTech Connect (OSTI)

Graphical abstract: Graphene/LiFePO{sub 4} composites as a high-performance cathode material for flexible lithium-ion batteries have been prepared by using a co-precipitation method to synthesize graphene/LiFePO4 powders as precursors and then followed by a solvent evaporation process. - Highlights: • Flexible LiFePO{sub 4}/graphene films were prepared first time by a solvent evaporation process. • The flexible electrode exhibited a high discharge capacity without conductive additives. • Graphene network offers the electrode adequate strength to withstand repeated flexing. - Abstract: Three-dimensional graphene/LiFePO{sub 4} nanostructures for flexible lithium-ion batteries were successfully prepared by solvent evaporation method. Structural characteristics of flexible electrodes were investigated by X-ray diffraction (XRD), atomic force microscopy (AFM) and scanning electron microscopy (SEM). Electrochemical performance of graphene/LiFePO{sub 4} was examined by a variety of electrochemical testing techniques. The graphene/LiFePO{sub 4} nanostructures showed high electrochemical properties and significant flexibility. The composites with low graphene content exhibited a high capacity of 163.7 mAh g{sup ?1} at 0.1 C and 114 mAh g{sup ?1} at 5 C without further incorporation of conductive agents.

Ding, Y.H., E-mail: yhding@xtu.edu.cn [College of Chemical Engineering, Xiangtan University, Hunan 411105 (China); Institute of Rheology Mechanics, Xiangtan University, Hunan 411105 (China); Ren, H.M. [Institute of Rheology Mechanics, Xiangtan University, Hunan 411105 (China); Huang, Y.Y. [BTR New Energy Materials Inc., Shenzhen 518000 (China); Chang, F.H.; Zhang, P. [Institute of Rheology Mechanics, Xiangtan University, Hunan 411105 (China)

2013-10-15T23:59:59.000Z

276

Facile synthesis of MnO and nitrogen-doped carbon nanocomposites as anode material for lithium ion battery  

Science Journals Connector (OSTI)

Abstract MnO and nitrogen-doped carbon (N-C) nanocomposites have been successfully synthesized by a facile thermal-decomposing method using the mixture of glycine and manganese acetate as precursor. As anode material for lithium-ion batteries (LIBs), electrochemical results show that the as-prepared MnO/N-C achieves a reversible capacity of 473 mAh g?1 after 50 cycles at a current density of 100 mA g?1 and the capacities of 631.4, 547.7, 443.1, 294.7, and 161.8 mAh g?1 at the current densities of 100, 200, 400, 800, and 1600 mA g?1, respectively. The superior cycling and rate performances is attributed to the nanocomposite structure, in which nanosized MnO particles shorten the diffusion path of lithium ions and the N-doped carbon cushions the volume change and improves the electronic conductivity of electrode.

Song Qiu; Xinzhen Wang; Guixia Lu; Jiurong Liu; Cuizhu He

2014-01-01T23:59:59.000Z

277

Performance improvement of phenyl acetate as propylene carbonate-based electrolyte additive for lithium ion battery by fluorine-substituting  

Science Journals Connector (OSTI)

Abstract Phenyl acetate (PA) is more stable and much cheaper than vinylene carbonate (VC), a commercial electrolyte additive for graphite anode of lithium ion battery, but its performance needs to be improved. In this paper, we report a new additive, 4-fluorophenyl acetate (4-FPA), which results from the fluorine-substituting of PA. The properties of the formed solid electrolyte interphase (SEI) by 4-FPA are investigated comparatively with PA by molecular energy level calculation, cyclic voltammetry, charge–discharge test, scanning electron microscopy, energy dispersive X-ray spectroscopy, and Fourier transform infrared spectroscopy. It is found that the SEI formed by 4-FPA is more protective than PA, resulting in the improved cyclic stability of lithium ion battery: the capacity retention of LiFePO4/graphite cell after 90 cycles is 92% for 4-FPA but only 84% for PA. The fluorine in 4-FPA makes it more reducible than PA and the fluorine-containing reduction products of 4-FPA are incorporated into the SEI, which contributes to the improved performance.

Bin Li; Yaqiong Wang; Haibin Lin; Xianshu Wang; Mengqing Xu; Yating Wang; Lidan Xing; Weishan Li

2014-01-01T23:59:59.000Z

278

Observations of Oxygen Ion Behavior in the Lithium-Based Electrolytic Reduction of Uranium Oxide  

SciTech Connect (OSTI)

Parametric studies were performed on a lithium-based electrolytic reduction process at bench-scale to investigate the behavior of oxygen ions in the reduction of uranium oxide for various electrochemical cell configurations. Specifically, a series of eight electrolytic reduction runs was performed in a common salt bath of LiCl – 1 wt% Li2O. The variable parameters included fuel basket containment material (i.e., stainless steel wire mesh and sintered stainless steel) and applied electrical charge (i.e., 75 – 150% of the theoretical charge for complete reduction of uranium oxide in a basket to uranium metal). Samples of the molten salt electrolyte were taken at regular intervals throughout each run and analyzed to produce a time plot of Li2O concentrations in the bulk salt over the course of the runs. Following each run, the fuel basket was sectioned and the fuel was removed. Samples of the fuel were analyzed for the extent of uranium oxide reduction to metal and for the concentration of salt constituents, i.e., LiCl and Li2O. Extents of uranium oxide reduction ranged from 43 – 70% in stainless steel wire mesh baskets and 8 – 33 % in sintered stainless steel baskets. The concentrations of Li2O in the salt phase of the fuel product from the stainless steel wire mesh baskets ranged from 6.2 – 9.2 wt%, while those for the sintered stainless steel baskets ranged from 26 – 46 wt%. Another series of tests was performed to investigate the dissolution of Li2O in LiCl at 650 °C across various cathode containment materials (i.e., stainless steel wire mesh, sintered stainless steel and porous magnesia) and configurations (i.e., stationary and rotating cylindrical baskets). Dissolution of identical loadings of Li2O particulate reached equilibrium within one hour for stationary stainless steel wire mesh baskets, while the same took several hours for sintered stainless steel and porous magnesia baskets. Rotation of an annular cylindrical basket of stainless steel wire mesh accelerated the Li2O dissolution rate by more than a factor of six.

Steven D. Herrmann; Shelly X. Li; Brenda E. Serrano-Rodriguez

2009-09-01T23:59:59.000Z

279

High energy spinel-structured cathode stabilized by layered materials for advanced lithium-ion batteries  

Science Journals Connector (OSTI)

Abstract Due to well-known Jahn–Teller distortion in spinel LiMn1.5Ni0.5O4, it can only be reversibly electrochemically cycled between 3 and 4.8 V with a limited reversible capacity of ?147 mAh g?1. This study intends to embed the layer-structured Li2MnO3 nanodomains into LiMn1.5Ni0.5O4 spinel matrix so that the Jahn–Teller distortion can be suppressed even when the average Mn oxidation state is below +3.5. A series of xLi2MnO3·(1 ? x)LiMn1.5Ni0.5O4 where x = 0, 0.1, 0.2, 0.3, 0.4, 0.5 and 1 are synthesized by co-precipitation method. The composites with intermediate values of x = 0.1, 0.2, 0.3, 0.4 and 0.5 exhibit both spinel and layered structural domains in the particles and show greatly improved cycle stability than that of the pure spinel. Among them, 0.3Li2MnO3·0.7LiMn1.5Ni0.5O4 delivers the highest and almost constant capacity after a few conditional cycles and shows superior cycle stability. Ex-situ X-ray diffraction results indicate that no Jahn–Teller distortion occurs during the cycling of the 0.3Li2MnO3·0.7LiMn1.5Ni0.5O4 composite. Additionally, 0.3Li2MnO3·0.7LiMn1.5Ni0.5O4 possesses a high energy density of ?700 Wh kg?1, showing great promise for advanced high energy density lithium-ion batteries.

Jia Lu; Ya-Lin Chang; Bohang Song; Hui Xia; Jer-Ren Yang; Kim Seng Lee; Li Lu

2014-01-01T23:59:59.000Z

280

Microsoft PowerPoint - NanoAnode for Li-ion Batteries SRNL-L9100-2009-00153p1.ppt  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Nanostructured Anodes for Lithium-Ion Nanostructured Anodes for Lithium-Ion Batteries at a glance  patent pending  increase energy density  longer cyclic life  replaces graphite anodes  simple and lower cost manufacturing Current carbon-based anodes are fabricated through a series of processes of mixing carbon, binder and conductive additives in organic solution, pasting the slurry on current collector and baking to remove solvent. It involves intensive labor, fire safety and environment emission control resulting in high cost. Background Savannah River Nuclear Solutions (SRNS), managing contractor of the Savannah River Site (SRS) for the Department of Energy, has developed new anodes for lithium-ion batteries that are reported to increase the energy density four-fold. It is

Note: This page contains sample records for the topic "lithium ion nano" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

Prediction of thermal behaviors of an air-cooled lithium-ion battery system for hybrid electric vehicles  

Science Journals Connector (OSTI)

Abstract Thermal management has been one of the major issues in developing a lithium-ion (Li-ion) hybrid electric vehicle (HEV) battery system since the Li-ion battery is vulnerable to excessive heat load under abnormal or severe operational conditions. In this work, in order to design a suitable thermal management system, a simple modeling methodology describing thermal behavior of an air-cooled Li-ion battery system was proposed from vehicle components designer's point of view. A proposed mathematical model was constructed based on the battery's electrical and mechanical properties. Also, validation test results for the Li-ion battery system were presented. A pulse current duty and an adjusted US06 current cycle for a two-mode HEV system were used to validate the accuracy of the model prediction. Results showed that the present model can give good estimations for simulating convective heat transfer cooling during battery operation. The developed thermal model is useful in structuring the flow system and determining the appropriate cooling capacity for a specified design prerequisite of the battery system.

Yong Seok Choi; Dal Mo Kang

2014-01-01T23:59:59.000Z

282

Manganese-Containing Cathode-Active Materials for Lithium-Ion Batteries  

Science Journals Connector (OSTI)

Manganese, which has a Clarke number of 0.06%,1...is the tenth-most abundant element in the earth’s crust, and has been utilized as a cathode-active material for manganese, alkaline-manganese, and lithium ... , f...

Koichi Numata

2009-01-01T23:59:59.000Z

283

AbstractFirst-principles models that incorporate all of the key physics that affect the internal states of a lithium-ion  

E-Print Network [OSTI]

effect, and relatively long battery life [2-4]. Capacity fade, underutilization, and thermal runaway states of a lithium-ion battery are in the form of coupled nonlinear PDEs. While these models are very the internal states of battery with a full simulation running in milliseconds without compromising on accuracy

Subramanian, Venkat

284

ESTABLISHING SUSTAINABLE US HEV/PHEV MANUFACTURING BASE: STABILIZED LITHIUM METAL POWDER, ENABLING MATERIAL AND REVOLUTIONARY TECHNOLOGY FOR HIGH ENERGY LI-ION BATTERIES  

SciTech Connect (OSTI)

FMC Lithium Division has successfully completed the project “Establishing Sustainable US PHEV/EV Manufacturing Base: Stabilized Lithium Metal Powder, Enabling Material and Revolutionary Technology for High Energy Li-ion Batteries”. The project included design, acquisition and process development for the production scale units to 1) produce stabilized lithium dispersions in oil medium, 2) to produce dry stabilized lithium metal powders, 3) to evaluate, design and acquire pilot-scale unit for alternative production technology to further decrease the cost, and 4) to demonstrate concepts for integrating SLMP technology into the Li- ion batteries to increase energy density. It is very difficult to satisfy safety, cost and performance requirements for the PHEV and EV applications. As the initial step in SLMP Technology introduction, industry can use commercially available LiMn2O4 or LiFePO4, for example, that are the only proven safer and cheaper lithium providing cathodes available on the market. Unfortunately, these cathodes alone are inferior to the energy density of the conventional LiCoO2 cathode and, even when paired with the advanced anode materials, such as silicon composite material, the resulting cell will still not meet the energy density requirements. We have demonstrated, however, if SLMP Technology is used to compensate for the irreversible capacity in the anode, the efficiency of the cathode utilization will be improved and the cost of the cell, based on the materials, will decrease.

Yakovleva, Marina

2012-12-31T23:59:59.000Z

285

Composition-tailored synthesis of gradient transition metal precursor particles for lithium-ion battery cathode materials.  

SciTech Connect (OSTI)

We report the tailored synthesis of particles with internal gradients in transition metal composition aided by the use of a general process model. Tailored synthesis of transition metal particles was achieved using a coprecipitation reaction with tunable control over the process conditions. Gradients in the internal composition of the particles was monitored and confirmed experimentally by analysis of particles collected during regularly timed intervals. Particles collected from the reactor at the end of the process were used as the precursor material for the solid-state synthesis of Li{sub 1.2}(Mn{sub 0.62}Ni{sub 0.38}){sub 0.8}O{sub 2}, which was electrochemically evaluated as the active cathode material in a lithium battery. The Li{sub 1.2}(Mn{sub 0.62}Ni{sub 0.38}){sub 0.8}O{sub 2} material was the first example of a structurally integrated multiphase material with a tailored internal gradient in relative transition metal composition as the active cathode material in a lithium-ion battery. We believe our general synthesis strategy may be applied to produce a variety of new cathode materials with tunable interior, surface, and overall relative transition metal compositions.

Koenig, G. M.; Belharouak, I.; Deng, H.; Amine, K.; Sun, Y. K. (Chemical Sciences and Engineering Division)

2011-04-12T23:59:59.000Z

286

Material and energy flows in the materials production, assembly, and end-of-life stages of the automotive lithium-ion battery life cycle  

SciTech Connect (OSTI)

This document contains material and energy flows for lithium-ion batteries with an active cathode material of lithium manganese oxide (LiMn{sub 2}O{sub 4}). These data are incorporated into Argonne National Laboratory's Greenhouse gases, Regulated Emissions, and Energy use in Transportation (GREET) model, replacing previous data for lithium-ion batteries that are based on a nickel/cobalt/manganese (Ni/Co/Mn) cathode chemistry. To identify and determine the mass of lithium-ion battery components, we modeled batteries with LiMn{sub 2}O{sub 4} as the cathode material using Argonne's Battery Performance and Cost (BatPaC) model for hybrid electric vehicles, plug-in hybrid electric vehicles, and electric vehicles. As input for GREET, we developed new or updated data for the cathode material and the following materials that are included in its supply chain: soda ash, lime, petroleum-derived ethanol, lithium brine, and lithium carbonate. Also as input to GREET, we calculated new emission factors for equipment (kilns, dryers, and calciners) that were not previously included in the model and developed new material and energy flows for the battery electrolyte, binder, and binder solvent. Finally, we revised the data included in GREET for graphite (the anode active material), battery electronics, and battery assembly. For the first time, we incorporated energy and material flows for battery recycling into GREET, considering four battery recycling processes: pyrometallurgical, hydrometallurgical, intermediate physical, and direct physical. Opportunities for future research include considering alternative battery chemistries and battery packaging. As battery assembly and recycling technologies develop, staying up to date with them will be critical to understanding the energy, materials, and emissions burdens associated with batteries.

Dunn, J.B.; Gaines, L.; Barnes, M.; Wang, M.; Sullivan, J. (Energy Systems)

2012-06-21T23:59:59.000Z

287

Improved layered mixed transition metal oxides for Li-ion batteries  

E-Print Network [OSTI]

for rechargeable lithium batteries," Science 311(5763), 977-^ for Advanced Lithium-Ion Batteries," J. Electrochem. Soc.02 for lithium-ion batteries," Chem. Lett. , [3] Yabuuchi,

Doeff, Marca M.

2010-01-01T23:59:59.000Z

288

Chapter 16 - Lithium Battery Energy Storage: State of the Art Including Lithium–Air and Lithium–Sulfur Systems  

Science Journals Connector (OSTI)

Abstract Lithium, the lightest and one of the most reactive of metals, having the greatest electrochemical potential (E0 = ?3.045 V), provides very high energy and power densities in batteries. Rechargeable lithium-ion batteries (containing an intercalation negative electrode) have conquered the markets for portable consumer electronics and, recently, for electric vehicles. The electrolyte is usually based on a lithium salt in organic solution. Thin-film batteries use solid oxide or polymer electrolytes. As lithium metal reacts violently with water and can thus cause ignition, modern lithium-ion batteries use carbon negative electrodes and lithium metal oxide positive electrodes. Rechargeable lithium-ion batteries should not be confused with nonrechargeable lithium primary batteries (containing metallic lithium). This chapter covers all aspects of lithium battery chemistry that are pertinent to electrochemical energy storage for renewable sources and grid balancing.

Peter Kurzweil

2015-01-01T23:59:59.000Z

289

Advances in sealed liquid cells for in-situ TEM electrochemial investigation of lithium-ion battery  

Science Journals Connector (OSTI)

Abstract Lithium-ion battery (LIB) technology is currently the most important and promising energy storage technology that has captured the portable electronic market, invaded the power tool equipment market, and penetrated the electric vehicle market. The ever-growing demand for its energy capacity necessitates the understanding of (de)lithiation mechanism on a nanoscale, and thus the development of platforms enabling in-situ electrochemical TEM characterization. Sealed liquid cell (SLC) device has been widely recognized as the most desirable platform, since it allows the introduction of commercial volatile electrolytes into TEM. However, a comprehensive review summarizing the current development of \\{SLCs\\} for in-situ TEM LIB research is missing and in urgent need for its benign development. This review article aims to fill this gap.

Fan Wu; Nan Yao

2015-01-01T23:59:59.000Z

290

Characterization of high-power lithium-ion cells during constant current cycling. Part I. Cycle performance and electrochemical diagnostics  

SciTech Connect (OSTI)

Twelve-cm{sup 2} pouch type lithium-ion cells were assembled with graphite anodes, LiNi{sub 0.8}Co{sub 0.15}Al{sub 0.05}O{sub 2} cathodes and 1M LiPF{sub 6}/EC/DEC electrolyte. These pouch cells were cycled at different depths of discharge (100 percent and 70 percent DOD) at room temperature to investigate cycle performance and pulse power capability. The capacity loss and power fade of the cells cycled over 100 percent DOD was significantly faster than the cell cycled over 70 percent DOD. The overall cell impedance increased with cycling, although the ohmic resistance from the electrolyte was almost constant. From electrochemical analysis of each electrode after cycling, structural and/or impedance changes in the cathode are responsible for most of the capacity and power fade, not the consumption of cycleable Li from side-reactions.

Shim, Joongpyo; Striebel, Kathryn A.

2003-01-24T23:59:59.000Z

291

Pairing in dense lithium  

Science Journals Connector (OSTI)

... of valence electrons. Here we report the results of first-principles calculations, indicating that lithium, the band structure of which is largely free-electron-like at ordinary densities, does ... b.c.c.) becomes unstable to a pairing of the ions. Once paired, lithium possesses an even number of electrons per primitive cell which, although not sufficient, is ...

J. B. Neaton; N. W. Ashcroft

1999-07-08T23:59:59.000Z

292

Implications of Rapid Charging and Chemo-Mechanical Degradation in Lithium-Ion Battery Electrodes  

E-Print Network [OSTI]

Li-ion batteries, owing to their unique characteristics with high power and energy density, are broadly considered a leading candidate for vehicle electrification. A pivotal performance drawback of the Li-ion batteries manifests in the lengthy...

Hasan, Mohammed Fouad

2014-04-23T23:59:59.000Z

293

Efficient Reformulation of Solid-Phase Diffusion in Physics-Based Lithium-Ion Battery Models  

E-Print Network [OSTI]

in the solid phase. Introduction Physics based Li-ion battery models use porous electrode theory. One and their drawbacks Porous electrode models of Li-ion batteries often use approximations to eliminate the time and disadvantages when used in Li-ion battery models. For instance, the Duhamel's superposition method is the robust

Subramanian, Venkat

294

Synthesis and structural properties of lithium titanium oxide powder  

Science Journals Connector (OSTI)

Recently, lithium titanium oxide material has gained renewed interest in electrodes for lithium ion rechargeable batteries. We investigated the influence of excess Li on the structural characteristics of lithium ...

Soo Ho Kim; Kwang Hoon Lee; Baek Seok Seong…

2006-11-01T23:59:59.000Z

295

Olivine electrode engineering impact on the electrochemical performance of lithium-ion batteries.  

SciTech Connect (OSTI)

High energy and power density lithium iron phosphate was studied for hybrid electric vehicle applications. This work addresses the effects of porosity in a composite electrode using a four-point probe resistivity analyzer, galvanostatic cycling, and electrochemical impedance spectroscopy (EIS). The four-point probe result indicates that the porosity of composite electrode affects the electronic conductivity significantly. This effect is also observed from the cell's pulse current discharge performance. Compared to the direct current (dc) methods used, the EIS data are more sensitive to electrode porosity, especially for electrodes with low porosity values.

Lu, W.; Jansen, A.; Dees, D.; Henriksen, G.; Chemical Sciences and Engineering Division

2010-08-01T23:59:59.000Z

296

Tailored Recovery of Carbons from Waste Tires for Enhanced Performance as Anodes in Lithium-ion Batteries  

SciTech Connect (OSTI)

Morphologically tailored pyrolysis-recovered carbon black is utilized in lithium-ion batteries as a potential solution for adding value to waste tire-rubber-derived materials. Micronized tire rubber was digested in a hot oleum bath to yield a sulfonated rubber slurry that was then filtered, washed, and compressed into a solid cake. Carbon was recovered from the modified rubber cake by pyrolysis in a nitrogen atmosphere. The chemical pretreatment of rubber produced a carbon monolith with higher yield than that from the control (a fluffy tire-rubber-derived carbon black). The carbon monolith showed a very small volume fraction of pores of widths 3 4 nm, reduced specific surface area, and an ordered assembly of graphitic domains. Electrochemical studies on the recovered-carbon-based anode revealed an improved Li-ion battery performance with higher reversible capacity than that of commercial carbon materials. Anodes made with a sulfonated tire-rubber-derived carbon and a control tire-rubber-derived carbon, respectively, exhibited an initial coulombic efficiency of 80% and 45%, respectively. The reversible capacity of the cell with the sulfonated carbon as anode was 400 mAh/g after 100 cycles, with nearly 100% coulombic efficiency. Our success in producing higher performance carbon material from waste tire rubber for potential use in energy storage applications adds a new avenue to tire rubber recycling.

Naskar, Amit K [ORNL; Bi, [ORNL; Saha, Dipendu [ORNL; Chi, Miaofang [ORNL; Bridges, Craig A [ORNL; Paranthaman, Mariappan Parans [ORNL

2014-01-01T23:59:59.000Z

297

SECONDARY BATTERIES – LITHIUM RECHARGEABLE SYSTEMS | Overview  

Science Journals Connector (OSTI)

Rechargeable lithium batteries have conquered the markets for portable consumer electronics and, recently, for electric vehicles. Lithium, the lightest and one of the most reactive of metals, having the greatest electrochemical potential (E°=–3.045 V), provides very high energy and power densities in batteries. As lithium metal reacts violently with water and can ignite into flame, modern lithium-ion batteries use carbon negative electrode and lithium metal oxide positive electrode. The electrolyte is usually based on a lithium salt in organic solution. Thin-film batteries use solid oxide or polymer electrolytes. Rechargeable lithium-ion batteries (containing an intercalation negative electrode) should not be confused with nonrechargeable lithium primary batteries (containing metallic lithium). This article outlines energy storage in lithium batteries, basic cell chemistry, positive electrode materials, negative electrode materials, electrolytes, and state-of-charge (SoC) monitoring.

P. Kurzweil; K. Brandt

2009-01-01T23:59:59.000Z

298

Long-life and high-rate LiVPO4F/C nanocrystals modified with graphene as cathode material for lithium-ion batteries  

Science Journals Connector (OSTI)

Abstract Graphene modified LiVPO4F/C nanocomposite has been firstly investigated as cathode material for lithium-ion batteries. The LiVPO4F/C nanocrystals embedded on reduced graphene oxide sheets are synthesized via a sol–gel method. The obtained sample of graphene modified LiVPO4F/C is studied comparatively with LiVPO4F/C by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Raman spectra and various electrochemical tests. The results reveal that the modification of LiVPO4F/C nanocrystals with graphene can form an effective conducting network, which can greatly improve the electronic conductivity and lithium ion transport. Thus, the as-synthesized nanocomposite exhibits excellent high-rate capability and cycling stability. In the voltage range of 3.0–4.5 V, the graphene modified LiVPO4F/C delivers a reversible discharge capacity of 151.6 (nearly to its theoretical capability of 156 mAhg? 1) and 147.8 mAhg? 1 at 0.1 and 0.5 C, respectively. It also achieves an improved cyclability with capacity retention ratio of 91.4% after 300 cycles at a higher rate of 10 C. Therefore, it is of great potential use as a cathode material in rechargeable lithium-ion batteries for hybrid-electric vehicles and electric vehicles.

Yongli Wang; Haixiang Zhao; Yongfeng Ji; Lihua Wang; Zhen Wei

2014-01-01T23:59:59.000Z

299

Direct hybridization of tin oxide/graphene nanocomposites for highly efficient lithium-ion battery anodes  

Science Journals Connector (OSTI)

A facile direct hybridization route to prepare SnO2/graphene nanocomposites for Li-ion battery anode application is demonstrated. Uniform distribution of...2 nanoparticles on graphene layers was enabled by a one-...

Dong Ok Shin; Hun Park; Young-Gi Lee; Kwang Man Kim…

2014-06-01T23:59:59.000Z

300

Khalil Amine on Lithium-air Batteries  

ScienceCinema (OSTI)

Khalil Amine, materials scientist at Argonne National Laboratory, speaks on the new technology Lithium-air batteries, which could potentially increase energy density by 5-10 times over lithium-ion batteries.

Khalil Amine

2010-01-08T23:59:59.000Z

Note: This page contains sample records for the topic "lithium ion nano" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

Graphene oxide oxidizes stannous ions to synthesize tin sulfidegraphene nanocomposites with small crystal size for high performance lithium ion  

E-Print Network [OSTI]

Graphene oxide oxidizes stannous ions to synthesize tin sulfide­graphene nanocomposites with small September 2012 DOI: 10.1039/c2jm34864k This study reports a novel strategy of preparing graphene composites by employing graphene oxide as precursor and oxidizer. It is demonstrated that graphene oxide can oxidize

Cao, Guozhong

302

Final Progress Report for Linking Ion Solvation and Lithium Battery Electrolyte Properties  

SciTech Connect (OSTI)

The research objective of this proposal was to provide a detailed analysis of how solvent and anion structure govern the solvation state of Li+ cations in solvent-LiX mixtures and how this, in turn, dictates the electrolyte physicochemical and electrochemical properties which govern (in part) battery performance. Lithium battery electrolytes remain a poorly understood and hardly studied topic relative to the research devoted to battery electrodes. This is due to the fact that it is the electrodes which determine the energy (capacity) of the battery. The electrolyte, however, plays a crucial role in the practical energy density, power, low and/or high temperature performance, lifetime, safety, etc. which is achievable. The development within this project of a "looking glass" into the molecular interactions (i.e., solution structure) in bulk electrolytes through a synergistic experimental approach involving three research thrusts complements work by other researchers to optimize multi-solvent electrolytes and efforts to understand/control the electrode-electrolyte interfaces, thereby enabling the rational design of electrolytes for a wide variety of battery chemistries and applications (electrolytes-on-demand). The three research thrusts pursued include: (1) conduction of an in-depth analysis of the thermal phase behavior of diverse solvent-LiX mixtures, (2) exploration of the ionic association/solvate formation behavior of select LiX salts with a wide variety of solvents, and (3) linking structure to properties?determination of electrolyte physicochemical and electrochemical properties for comparison with the ionic association and phase behavior.

Henderson, Wesley

2014-08-29T23:59:59.000Z

303

In-Situ Transmission Electron Microscopy Probing of Native Oxide and Artificial Layers on Silicon Nanoparticles for Lithium Ion Batteries  

SciTech Connect (OSTI)

Surface modification of silicon nanoparticle via molecular layer deposition (MLD) has been recently proved to be an effective way for dramatically enhancing the cyclic performance in lithium ion batteries. However, the fundamental mechanism as how this thin layer of coating function is not known, which is even complicated by the inevitable presence of native oxide of several nanometers on the silicon nanoparticle. Using in-situ TEM, we probed in detail the structural and chemical evolution of both uncoated and coated silicon particles upon cyclic lithiation/delithation. We discovered that upon initial lithiation, the native oxide layer converts to crystalline Li2O islands, which essentially increases the impedance on the particle, resulting in ineffective lithiation/delithiation, and therefore low coulombic efficiency. In contrast, the alucone MLD coated particles show extremely fast, thorough and highly reversible lithiation behaviors, which are clarified to be associated with the mechanical flexibility and fast Li+/e- conductivity of the alucone coating. Surprisingly, the alucone MLD coating process chemically changes the silicon surface, essentially removing the native oxide layer and therefore mitigates side reaction and detrimental effects of the native oxide. This study provides a vivid picture of how the MLD coating works to enhance the coulombic efficiency and preserve capacity and clarifies the role of the native oxide on silicon nanoparticles during cyclic lithiation and delithiation. More broadly, this work also demonstrated that the effect of the subtle chemical modification of the surface during the coating process may be of equal importance as the coating layer itself.

He, Yang; Piper, Daniela M.; Gu, Meng; Travis, Jonathan J.; George, Steven M.; Lee, Se-Hee; Genc, Arda; Pullan, Lee; Liu, Jun; Mao, Scott X.; Zhang, Jiguang; Ban, Chunmei; Wang, Chong M.

2014-10-27T23:59:59.000Z

304

Co3O4 nanocubes homogeneously assembled on few-layer graphene for high energy density lithium-ion batteries  

Science Journals Connector (OSTI)

Abstract Graphene-based nanocomposites have been synthesized and tested as electrode materials for high power lithium-ion batteries. In the synthesis of such nanocomposites, graphene is generally introduced by either thermally or chemically reduced graphite oxide (GO), which has poorer electric conductivity and crystallinity than mechanically exfoliated graphene. Here, we prepare few-layer graphene sheet (FLGS) with high electric conductivity, by sonicating expanded graphite in DMF solvent, and develop a simple one-pot hydrothermal method to fabricate monodispersed and ultrasmall Co3O4 nanocubes (about 4 nm in size) on the FLGS. This composite, consisting of homogeneously assembled and high crystalline Co3O4 nanocubes on the FLGS, has shown higher capacity and much better cycling stability than counterparts synthesized using GO as a precursor. The products in different synthesis stages have been characterized by TEM, FTIR and XPS to investigate the nanocube growth mechanism. We find that Co(OH)2 initially grew homogeneously on the graphene surface, then gradually oxidized to form Co3O4 nanoparticle seeds, and finally converted to Co3O4 nanocubes with caboxylated anion as surfactant. This work explores the mechanism of nanocrystal growth and its impact on electrochemical properties to provide further insights into the development of nanostructured electrode materials for high power energy storage.

Junming Xu; Jinsong Wu; Langli Luo; Xinqi Chen; Huibin Qin; Vinayak Dravid; Shaobo Mi; Chunlin Jia

2015-01-01T23:59:59.000Z

305

Thermal investigation of lithium-ion battery module with different cell arrangement structures and forced air-cooling strategies  

Science Journals Connector (OSTI)

Abstract Thermal management needs to be carefully considered in the lithium-ion battery module design to guarantee the temperature of batteries in operation within a narrow optimal range. This article firstly explores the thermal performance of battery module under different cell arrangement structures, which includes: 1 × 24, 3 × 8 and 5 × 5 arrays rectangular arrangement, 19 cells hexagonal arrangement and 28 cells circular arrangement. In addition, air-cooling strategies are also investigated by installing the fans in the different locations of the battery module to improve the temperature uniformity. Factors that influence the cooling capability of forced air cooling are discussed based on the simulations. The three-dimensional computational fluid dynamics (CFD) method and lumped model of single cell have been applied in the simulation. The temperature distributions of batteries are quantitatively described based on different module patterns, fan locations as well as inter-cell distance, and the conclusions are arrived as follows: when the fan locates on top of the module, the best cooling performance is achieved; the most desired structure with forced air cooling is cubic arrangement concerning the cooling effect and cost, while hexagonal structure is optimal when focus on the space utilization of battery module. Besides, the optimized inter-cell distance in battery module structure has been recommended.

Tao Wang; K.J. Tseng; Jiyun Zhao; Zhongbao Wei

2014-01-01T23:59:59.000Z

306

Photoluminescence properties of Ho{sup 3+} ion in lithium-fluoroborate glass containing different modifier oxides  

SciTech Connect (OSTI)

Trivalent holmium (0.5 mol%) doped lithium fluoro-borate glasses with the chemical compositions 49.5Li{sub 2}B{sub 4}O{sub 7?}20BaF{sub 2?}10NaF?20MO (where M=Mg, Ca, Cd and Pb), 49.5Li{sub 2}B{sub 4}O{sub 7?}20BaF{sub 2?}10NaF?10MgO?10CaO and 49.5Li{sub 2}B{sub 4}O{sub 7?}20BaF{sub 2?}10NaF?10CdO?10PbO were synthesized and investigated their photoluminescence properties. The variation in chemical composition by varying modifier oxides causes changes in the structural spectroscopic behavior of Ho{sup 3+} ions. These changes are examined by UV-VIS- NIR and luminescence spectroscopic techniques. The visible luminescence spectra were obtained by exciting samples at 409 nm radiation.

Balakrishna, A., E-mail: ratnakaramsvu@gmail.com; Rajesh, D., E-mail: ratnakaramsvu@gmail.com; Ratnakaram, Y. C., E-mail: ratnakaramsvu@gmail.com [Department of Physics, S. V. University, Tirupati-517502 (India)

2014-04-24T23:59:59.000Z

307

Self-supported poly(methyl methacrylate–acrylonitrile–vinyl acetate)-based gel electrolyte for lithium ion battery  

Science Journals Connector (OSTI)

Self-supported gel polymer electrolyte (GPE) was prepared based on copolymer, poly(methyl methacrylate–acrylonitrile–vinyl acetate) (P(MMA–AN–VAc)). The copolymer P(MMA–AN–VAc) was synthesized by emulsion polymerization and the copolymer membrane was prepared through phase inversion. The structure and the performance of the copolymer, the membrane and the GPE were characterized by FTIR, NMR, SEM, XRD, DSC/TG, LSV, CA, and EIS. It is found that the copolymer was formed through the breaking of double bond CC in each monomer. The membrane has low crystallinity and has low glass transition temperature, 39.1 °C, its thermal stability is as high as 310 °C, and its mechanical strength is improved compared with P(MMA–AN). The GPE is electrochemically stable up to 5.6 V (vs. Li/Li+) and its conductivity is 3.48 × 10?3 S cm?1 at ambient temperature. The lithium ion transference number in the GPE is 0.51 and the conductivity model of the GPE is found to obey the Vogel–Tamman–Fulcher (VTF) equation.

Y.H. Liao; D.Y. Zhou; M.M. Rao; W.S. Li; Z.P. Cai; Y. Liang; C.L. Tan

2009-01-01T23:59:59.000Z

308

Tin oxide-titanium oxide/graphene composited as anode materials for lithium-ion batteries  

Science Journals Connector (OSTI)

A tin oxide-titanium oxide/graphene (SnO2-TiO2.../G) ternary nanocomposite as high-performance anode for Li-ion batteries was prepared via a simple reflux method. ... The graphite oxide (GO) was reduced to graphene

Shan-Shan Chen; Xue Qin

2014-10-01T23:59:59.000Z

309

Thermal study of organic electrolytes with fully charged cathodic materials of lithium-ion batteries  

Science Journals Connector (OSTI)

We systematically investigated thermal effects of organic electrolytes/organic solvents with...0.5CoO2) of Li-ion battery under rupture conditions by using oxygen bomb...3O4, CoO, and LiCoO2 were the main solid p...

Qian Huang; Manming Yan; Zhiyu Jiang

2008-06-01T23:59:59.000Z

310

Effects of carbon-chain length of trifluoroacetate co-solvents for lithium-ion battery electrolytes using at low temperature  

Science Journals Connector (OSTI)

Abstract Trifluoroacetate is suitable as a co-solvent of rechargeable lithium-ion battery electrolyte for low temperature use. In this work, the following four trifluoroacetate solvents have been studied: (1) methyl trifluoroacetate (MTFA), (2) ethyl trifluoroacetate (ETFA), (3) n-butyl trifluoroacetate (NBTFA), (4) n-hexyl trifluoroacetate (NHTFA). Our efforts focus on the effect of carbon-chain length in trifluorinated acetate's molecular structure. These solvents have been incorporated into multi-component carbonate-based electrolytes and evaluated in lithium–graphite cells. FTIR spectrum has been used to analyze the dissociation of LiPF6 in a single co-solvent. The migration abilities of solvated Li+ have been characterized by ionic conductivities and viscosities. It could be concluded that the trifluoroacetate with long carbon-chain has a weak ability to dissociate LiPF6 salt into free ions, and simultaneously decreases mobility of solvated Li+ in the modified electrolyte. The charge–discharge test has shown a larger capacity shrink of lithium de-intercalation at low temperature and higher polarization potential on graphite electrode. As a low-temperature co-solvent, the carbon-chain length of alcohol group in trifluoroacetate structure should be selected as short as possible.

Wei Lu; Kai Xie; Yi Pan; Zhong-xue Chen; Chun-man Zheng

2013-01-01T23:59:59.000Z

311

Helium ion beam milling to create a nano-structured domain wall magnetoresistance spin valve  

Science Journals Connector (OSTI)

We have fabricated and measured single domain wall magnetoresistance devices with sub-20 nm gap widths using a novel combination of electron beam lithography and helium ion beam milling. The measurement wires and external profile of the spin valve are fabricated by electron beam lithography and lift-off. The critical bridge structure is created using helium ion beam milling, enabling the formation of a thinner gap (and so a narrower domain wall) than that which is possible with electron beam techniques alone. Four-point probe resistance measurements and scanning electron microscopy are used to characterize the milled structures and optimize the He ion dose. Successful operation of the device as a spin valve is demonstrated, with a 0.2% resistance change as the external magnetic field is cycled. The helium ion beam milling efficiency as extracted from electrical resistance measurements is 0.044 atoms/ion, about half the theoretical value. The gap in the device is limited to a maximum of 20 nm with this technique due to sub-surface swelling caused by injected ions which can induce catastrophic failure in the device. The fine patterning capabilities of the helium ion microscope milling technique indicate that sub-5 nm constriction widths could be possible.

Yudong Wang; S A Boden; D M Bagnall; H N Rutt; C H de Groot

2012-01-01T23:59:59.000Z

312

Carbons for lithium ion cells prepared using sepiolite as an inorganic template.  

SciTech Connect (OSTI)

Carbon anodes for Li ion cells have been prepared by the in situ polymerization of olefins such as propylene and ethylene in the channels of sepiolite clay mineral. Upon dissolution of the inorganic framework, a disordered carbon was obtained. The carbon was tested as anode in coin cells, yielding a reversible capacity of 633 mAh/g, 1.70 times higher than the capacity delivered by graphitic carbon, assuming 100% efficiency. The coulombic efficiency was higher than 90%.

Sandi, G.

1998-12-09T23:59:59.000Z

313

A new class of non-zeolitic sorbents for air separations: Lithium ion exchanged pillared clays  

SciTech Connect (OSTI)

Zeolites are the only known sorbents that adsorb N{sub 2} selectively over O{sub 2}, and are used for industrial air separation. Pillared clays (PILCs) have a high Broensted acidity (k.e., high proton density). It is found in this study that when the protons are exchanged by alkali metal ions, in particular Li{sup +}, the ion exchanged pillared clays can exhibit a high N{sub 2}/O{sub 2} adsorption selectivity that rivals that of the zeolites. The first result shows a pure-component adsorption ratio of N{sub 2}/O{sub 2} = 3.2 (at 25 C and 1 atm) for Li{sup +}-exchanged PILC. The N{sub 2} capacity, however, is only 20% that of the zeolite, and remains to be improved. A systematic investigation is conducted on the effects of three factors on the N{sub 2}/O{sub 2} selectivity: (1) starting clays (tetrahedral vs octahedral isomorphous substitution and clays with different charge densities), (2) different metal oxides as pillars, and (3) different ion exchange alkali metal cations (Li{sup +}, Na{sup +}, K{sup +}, Rb{sup +}, and Cs{sup +}). The highest N{sub 2}/O{sub 2} selectivities are achieved by using clays with the highest charge densities, metal oxides forming pillars with the narrowest gallery spaces, and ion exchange cations with the smallest ionic radii. Effects by all three factors are qualitatively understood. The high N{sub 2}/O{sub 2} selectivity on the Li{sup +} exchanged PILC is the result of the small ionic radius (and hence high polarizing power) of Li{sup +} and the strong quadrupole moment of the N{sub 2} molecule. Moreover, a technique is developed with which the amount of the exchanged cations can exceed that allowed by the original cation exchange capacity of the clay by using a high pH value in the ion exchange solution.

Cheng, L.S.; Yang, R.T. [State Univ. of New York, Buffalo, NY (United States). Dept. of Chemical Engineering

1995-06-01T23:59:59.000Z

314

Hybrid Nano Carbon Fiber/Graphene Platelet-Based High-Capacity Anodes for Lithium Ion Batteries  

Broader source: Energy.gov [DOE]

2010 DOE Vehicle Technologies and Hydrogen Programs Annual Merit Review and Peer Evaluation Meeting, June 7-11, 2010 -- Washington D.C.

315

Hybrid Nano Carbon Fiber/Graphene Platelet-Based High-Capacity Anodes for Lithium Ion Batteries  

Broader source: Energy.gov [DOE]

2011 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program Annual Merit Review and Peer Evaluation

316

Nano-scale Composite Hetero-structures: Novel High Capacity Reversible Anodes for Lithium-ion Batteries  

Broader source: Energy.gov [DOE]

2010 DOE Vehicle Technologies and Hydrogen Programs Annual Merit Review and Peer Evaluation Meeting, June 7-11, 2010 -- Washington D.C.

317

Nano-scale Composite Hetero-structures: Novel High Capacity Reversible Anodes for Lithium-ion Batteries  

Broader source: Energy.gov [DOE]

2009 DOE Hydrogen Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting, May 18-22, 2009 -- Washington D.C.

318

Lithium metal oxide electrodes for lithium batteries  

DOE Patents [OSTI]

An uncycled electrode for a non-aqueous lithium electrochemical cell including a lithium metal oxide having the formula Li.sub.(2+2x)/(2+x)M'.sub.2x/(2+x)M.sub.(2-2x)/(2+x)O.sub.2-.delta., in which 0.ltoreq.x<1 and .delta. is less than 0.2, and in which M is a non-lithium metal ion with an average trivalent oxidation state selected from two or more of the first row transition metals or lighter metal elements in the periodic table, and M' is one or more ions with an average tetravalent oxidation state selected from the first and second row transition metal elements and Sn. Methods of preconditioning the electrodes are disclosed as are electrochemical cells and batteries containing the electrodes.

Thackeray, Michael M. (Naperville, IL); Kim, Jeom-Soo (Naperville, IL); Johnson, Christopher S. (Naperville, IL)

2008-01-01T23:59:59.000Z

319

Revealing lithium-silicide phase transformations in nano-structured silicon based lithium ion batteries via in-situ NMR spectroscopy  

E-Print Network [OSTI]

assembled in the XRD holder and sealed hermetically by Kapton film to prevent air exposure. SiNWs on SS were cycled galvanostatically at C/25 (Supplementary Figure 7) and C/75 (Supplementary Figure 8) to target voltages (80, 40, 0 mV on discharge, 50, 250... orientations and defects are also found. Air exposure during post-growth transfer results in the formation of a ~2 nm thick native oxide layer surrounding each SiNW. In the following analysis of our materials, we first performed a detailed electrochemical...

Ogata, K.; Salager, E.; Kerr, C. J.; Fraser, A. E.; Ducati, C.; Morris, A. J.; Hofmann, S.; Grey, C. P.

2014-02-03T23:59:59.000Z

320

Effects of sequential tungsten and helium ion implantation on nano-indentation hardness of tungsten  

SciTech Connect (OSTI)

To simulate neutron and helium damage in a fusion reactor first wall sequential self-ion implantation up to 13 dpa followed by helium-ion implantation up to 3000 appm was performed to produce damaged layers of {approx}2 {mu}m depth in pure tungsten. The hardness of these layers was measured using nanoindentation and was studied using transmission electron microscopy. Substantial hardness increases were seen in helium implanted regions, with smaller hardness increases in regions which had already been self-ion implanted, thus, containing pre-existing dislocation loops. This suggests that, for the same helium content, helium trapped in distributed vacancies gives stronger hardening than helium trapped in vacancies condensed into dislocation loops.

Armstrong, D. E. J.; Edmondson, P. D.; Roberts, S. G. [Department of Materials, University of Oxford, Parks Road, Oxford OX1 3PH (United Kingdom)] [Department of Materials, University of Oxford, Parks Road, Oxford OX1 3PH (United Kingdom)

2013-06-24T23:59:59.000Z

Note: This page contains sample records for the topic "lithium ion nano" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

3D Thermal and Electrochemical Model for Spirally Wound Large Format Lithium-ion Batteries (Presentation)  

SciTech Connect (OSTI)

In many commercial cells, long tabs at both cell sides, leading to uniform potentials along the spiral direction of wound jelly rolls, are rarely seen because of their high manufacturing cost. More often, several metal strips are welded at discrete locations along both current collector foils. With this design, the difference of electrical potentials is easily built up along current collectors in the spiral direction. Hence, the design features of the tabs, such as number, location and size, can be crucial factors for spiral-shaped battery cells. This paper presents a Li-ion battery cell model having a 3-dimensional spiral mesh involving a wound jellyroll structure. Further results and analysis will be given regarding impacts of tab location, number, and size.

Lee, K. J.; Kim, G. H.; Smith, K.

2010-10-14T23:59:59.000Z

322

LiMn{sub 2}O{sub 4} nanoparticles anchored on graphene nanosheets as high-performance cathode material for lithium-ion batteries  

SciTech Connect (OSTI)

Nanocrystalline LiMn{sub 2}O{sub 4}/graphene nanosheets nanocomposite has been successfully synthesized by a one-step hydrothermal method without post-heat treatment. In the nanocomposite, LiMn{sub 2}O{sub 4} nanoparticles of 10–30 nm in size are well crystallized and homogeneously anchored on the graphene nanosheets. The graphene nanosheets not only provide a highly conductive matrix for LiMn{sub 2}O{sub 4} nanoparticles but also effectively reduce the agglomeration of LiMn{sub 2}O{sub 4} nanoparticles. The nanocrystalline LiMn{sub 2}O{sub 4}/graphene nanosheets nanocomposite exhibited greatly improved electrochemical performance in terms of specific capacity, cycle performance, and rate capability compared with the bare LiMn{sub 2}O{sub 4} nanoparticles. The superior electrochemical performance of the nanocrystalline LiMn{sub 2}O{sub 4}/graphene nanosheets nanocomposite makes it promising as cathode material for high-performance lithium-ion batteries. - Graphical abstract: Nanocrystalline LiMn{sub 2}O{sub 4}/graphene nanosheets (GNS) nanocomposite exhibit superior cathode performance for lithium-ion batteries compared to the bare LiMn{sub 2}O{sub 4} nanoparticles. Display Omitted - Highlights: • LiMn{sub 2}O{sub 4}/graphene nanocomposite is synthesized by a one-step hydrothermal method. • LiMn{sub 2}O{sub 4} nanoparticles are uniformly anchored on the graphene nanosheets. • The nanocomposite exhibits excellent cathode performance for lithium-ion batteries.

Lin, Binghui; Yin, Qing; Hu, Hengrun; Lu, Fujia [School of Materials Science and Engineering, Nanjing University of Science and Technology, Xiaolingwei 200, Nanjing, Jiangsu 210094 (China); Xia, Hui, E-mail: xiahui@njust.edu.cn [School of Materials Science and Engineering, Nanjing University of Science and Technology, Xiaolingwei 200, Nanjing, Jiangsu 210094 (China); Herbert Gleiter Institute of Nanoscience, Nanjing University of Science and Technology, Nanjing 210094 (China)

2014-01-15T23:59:59.000Z

323

Manufacturing of Protected Lithium Electrodes for Advanced Lithium...  

Broader source: Energy.gov (indexed) [DOE]

Lithium Electrodes for Advanced Lithium-Air, Lithium-Water, and Lithium-Sulfur Batteries, April 2013 Manufacturing of Protected Lithium Electrodes for Advanced Lithium-Air,...

324

Fabrication of carbon microcapsules containing silicon nanoparticles-carbon nanotubes nanocomposite by sol-gel method for anode in lithium ion battery  

SciTech Connect (OSTI)

Carbon microcapsules containing silicon nanoparticles (Si NPs)-carbon nanotubes (CNTs) nanocomposite (Si-CNT-C) have been fabricated by a surfactant mediated sol-gel method followed by a carbonization process. Silicon nanoparticles-carbon nanotubes (Si-CNT) nanohybrids were produced by a wet-type beadsmill method. To obtain Si-CNT nanocomposites with spherical morphologies, a silica precursor (tetraethylorthosilicate, TEOS) and polymer (PMMA) mixture was employed as a structure-directing medium. Thus the Si-CNT/Silica-Polymer microspheres were prepared by an acid catalyzed sol-gel method. Then a carbon precursor such as polypyrrole (PPy) was incorporated onto the surfaces of pre-existing Si-CNT/silica-polymer to generate Si-CNT/Silica-Polymer-PPy microspheres. Subsequent thermal treatment of the precursor followed by wet etching of silica produced Si-CNT-C microcapsules. The intermediate silica/polymer must disappear during the carbonization and etching process resulting in the formation of an internal free space. The carbon precursor polymer should transform to carbon shell to encapsulate remaining Si-CNT nanocomposites. Therefore, hollow carbon microcapsules containing Si-CNT nanocomposites could be obtained (Si-CNT-C). The successful fabrication was confirmed by scanning electron microscopy (SEM) and X-ray diffraction (XRD). These final materials were employed for anode performance improvement in lithium ion battery. The cyclic performances of these Si-CNT-C microcapsules were measured with a lithium battery half cell tests. - Graphical Abstract: Carbon microcapsules containing silicon nanoparticles (Si NPs)-carbon nanotubes (CNTs) nanocomposite (Si-CNT-C) have been fabricated by a surfactant mediated sol-gel method. Highlights: > Polymeric microcapsules containing Si-CNT transformed to carbon microcapsules. > Accommodate volume changes of Si NPs during Li ion charge/discharge. > Sizes of microcapsules were controlled by experimental parameters. > Lithium storage capacity and coulombic efficiency were demonstrated. > Use of sol-gel procedure as intermediate reaction.

Bae, Joonwon, E-mail: joonwonbae@gmail.com [Samsung Advanced Institute of Technology, Yong-In City 446-712, Gyeong-Gi Province (Korea, Republic of)

2011-07-15T23:59:59.000Z

325

Overcharge Protection for 4 V Lithium Batteries at High Rates and Low Temperature  

E-Print Network [OSTI]

Protection for 4 V Lithium Batteries at High Rates and LowRechargeable lithium batteries are known for their highBecause lithium ion batteries are especially susceptible to

Chen, Guoying

2010-01-01T23:59:59.000Z

326

Electrochemical and impedance investigation of the effect of lithium malonate on the performance of natural graphite electrodes in lithium-ion batteries  

SciTech Connect (OSTI)

Lithium malonate (LM) was coated on the surface of a natural graphite (NG) electrode, which was then tested as the negative electrode in the electrolytes of 0.9 M LiPF6/EC-PC-DMC (1/1/3, by weight) and 1.0 M LiBF4/EC-PC-DMC (1/1/3, by weight) under a current density of 0.075 mA cm-2. LM was also used as an additive to the electrolyte of 1.0 M LiPF6/EC-DMC-DEC (1/1/1, by volume) and tested on a bare graphite electrode. It was found that both the surface coating and the additive approach were effective in improving first charge discharge capacity and coulomb efficiency. Electrochemical impedance spectra showed that the decreased interfacial impedance was coupled with improved coulomb efficiency of the cells using coated graphite electrodes. Cyclic voltammograms (CVs) on fresh bare and coated natural graphite electrodes confirmed that all the improvement in the half-cell performance was due to the suppression of the solvent decomposition through the surface modification with LM. The CV data also showed that the carbonate electrolyte with LM as the additive was not stable against oxidation, which resulted in lower capacity of the full cell with commercial graphite and LiCoO2 electrodes.

Sun, Xiao-Guang [ORNL; Dai, Sheng [ORNL

2010-01-01T23:59:59.000Z

327

Impact of microwave synthesis conditions on the rechargeable capacity of LiCoPO4 for lithium ion batteries  

Science Journals Connector (OSTI)

LiCoPO4 was synthesized via microwave synthesis following the procedure previously described [23]. Lithium hydroxide (LiOH, 98 % Sigma Aldrich) and cobalt(II) acetate tetrahydrate [Co(CH3COO)2·4H2O, Sigma Aldrich...

Reginald E. Rogers; Garry M. Clarke…

2013-03-01T23:59:59.000Z

328

A rapid method for the determination of lithium transference numbers  

SciTech Connect (OSTI)

Lithium ion-conducting polymer electrolytes are of increasing interest for use in lithium-polymer batteries. Lithium transference numbers, the net fraction of current carried by lithium in a cell, are key figures of merit for potential lithium battery electrolytes. The authors describe the Electrophoretic NMR (ENMR) method for the determination of lithium ion transference numbers (T{sub Li}). The work presented is a proof-of-concept of the application of the ENMR method to lithium ion transference measurements for several different lithium salts in gelled electrolytes. The NMR method allows accurate determination of T{sub Li} values, as indicated by the similarity of T{sub Li} in the gelled electrolytes to those in aqueous electrolyte solutions at low salt concentration. Based on calculated tradeoffs of various experimental parameters, they also discuss some conclusions concerning the range of applicability of the method to other electrolytes with lower lithium mobility.

Zawodzinski, T.A. Jr.; Dai, H.; Sanderson, S.; Davey, J.; Uribe, F. [Los Alamos National Lab., NM (United States). Electronics Materials and Device Research Group

1997-05-01T23:59:59.000Z

329

SnO{sub 2}/ZnO composite structure for the lithium-ion battery electrode  

SciTech Connect (OSTI)

In this article, SnO{sub 2}/ZnO composite structures have been synthesized by two steps hydrothermal method and investigated their lithium storage capacity as compared with pure ZnO. It has been found that these composite structures combining the large specific surface area, stability and catalytic activity of SnO{sub 2} micro-crystals, demonstrate the higher initial discharge capacity of 1540 mA h g{sup -1} with a Coulombic efficiency of 68% at a rate of 120 mA h g{sup -1} between 0.02 and 2 V and found much better than that of any previously reported ZnO based composite anodes. In addition, a significantly enhanced cycling performance, i.e., a reversible capacity of 497 mA h g{sup -1} is retained after 40 cycles. The improved lithium storage capacity and cycle life is attributed to the addition of SnO{sub 2} structure, which act as good electronic conductors and better accommodation of the large volume change during lithiation/delithiation process. - Graphical abstract: SnO{sub 2}/ZnO composite structures demonstrate the improved lithium storage capacity and cycle life as compared with pure ZnO nanostructure. Highlights: Black-Right-Pointing-Pointer Synthesis of SnO{sub 2}/ZnO composite structures by two steps hydrothermal approach. Black-Right-Pointing-Pointer Investigation of lithium storage capacity. Black-Right-Pointing-Pointer Excellent lithium storage capacity and cycle life of SnO{sub 2}/ZnO composite structures.

Ahmad, Mashkoor, E-mail: mashkoorahmad2003@yahoo.com [Beijing National Center for Electron Microscopy, The State Key Laboratory of New Ceramics and Fine Processing, Laboratory of Advanced Material, China Iron and Steel Research Institute Group, Department of Material Science and Engineering, Tsinghua University, Beijing 100084 (China) [Beijing National Center for Electron Microscopy, The State Key Laboratory of New Ceramics and Fine Processing, Laboratory of Advanced Material, China Iron and Steel Research Institute Group, Department of Material Science and Engineering, Tsinghua University, Beijing 100084 (China); Nanomaterial Research Group, Physics Division, PINSTECH, P.O. Nilore, Islamabad (Pakistan); Yingying, Shi [Laboratory of Advanced Materials, Department of Materials Science and Engineering, Tsinghua University, Beijing 100084 (China)] [Laboratory of Advanced Materials, Department of Materials Science and Engineering, Tsinghua University, Beijing 100084 (China); Sun, Hongyu [Beijing National Center for Electron Microscopy, The State Key Laboratory of New Ceramics and Fine Processing, Laboratory of Advanced Material, China Iron and Steel Research Institute Group, Department of Material Science and Engineering, Tsinghua University, Beijing 100084 (China)] [Beijing National Center for Electron Microscopy, The State Key Laboratory of New Ceramics and Fine Processing, Laboratory of Advanced Material, China Iron and Steel Research Institute Group, Department of Material Science and Engineering, Tsinghua University, Beijing 100084 (China); Shen, Wanci [Laboratory of Advanced Materials, Department of Materials Science and Engineering, Tsinghua University, Beijing 100084 (China)] [Laboratory of Advanced Materials, Department of Materials Science and Engineering, Tsinghua University, Beijing 100084 (China); Zhu, Jing, E-mail: jzhu@mail.tsinghua.edu.cn [Beijing National Center for Electron Microscopy, The State Key Laboratory of New Ceramics and Fine Processing, Laboratory of Advanced Material, China Iron and Steel Research Institute Group, Department of Material Science and Engineering, Tsinghua University, Beijing 100084 (China)] [Beijing National Center for Electron Microscopy, The State Key Laboratory of New Ceramics and Fine Processing, Laboratory of Advanced Material, China Iron and Steel Research Institute Group, Department of Material Science and Engineering, Tsinghua University, Beijing 100084 (China)

2012-12-15T23:59:59.000Z

330

Effects of dispersants and soluble counter-ions on aqueous dispersibility of nano-sized zirconia powder  

Science Journals Connector (OSTI)

The effect of different dispersants and water leaching on aqueous dispersibility of zirconia powder was studied. Zeta potentials of aqueous solutions containing nano-sized zirconia powder and different dispersants, such as ammonium polyacrylic acid (PAA-NH4) and tetramethyl ammonium hydroxide (TMAH) and water leaching were characterized. Better dispersion of nano-sized zirconia powder in aqueous solutions was achieved with the addition of dispersant and water leaching.

Zhipeng Xie; Jingtao Ma; Qing Xu; Yong Huang; Yi-Bing Cheng

2004-01-01T23:59:59.000Z

331

Dual phase polymer gel electrolyte based on non-woven poly(vinylidenefluoride-co-hexafluoropropylene)–layered clay nanocomposite fibrous membranes for lithium ion batteries  

SciTech Connect (OSTI)

Graphical abstract: Display Omitted Highlights: ? P(VdF-co-HFP)–clay nanocomposite based electrospun membranes are prepared. ? The membranes are used as polymer gel electrolyte (PGE) in lithium ion batteries. ? The composite PGE shows ionic conductivity of 5.5 mS cm{sup ?1} at room temperature. ? Li/PGE/LiFePO{sub 4} cell delivers initial discharge capacity of 160 mAh g{sup ?1}. ? The use of prepared electrolyte significantly improved the cell performance. -- Abstract: A new approach for fabricating polymer gel electrolytes (PGEs) based on electrospun poly(vinylidenefluoride-co-hexafluoropropylene) (P(VdF-co-HFP)) incorporated with layered nanoclay has been employed to enhance the ionic conductivity and electrochemical properties of P(VdF-co-HFP) without compromising its mechanical strength. The effect of layered nanoclay on properties of membranes has been evaluated by X-ray diffraction (XRD), differential scanning calorimetry (DSC) and thermal gravimetric analysis (TGA). Surface morphology of the membranes has been studied using field-emission scanning electron microscopy (FE-SEM). Polymer gel electrolytes are prepared by soaking the fibrous membrane into 1 M LiPF{sub 6} in EC/DEC. The electrochemical studies show that incorporation of layered nanoclay into the polymer matrix greatly enhanced the ionic conductivity and compatibility with lithium electrodes. The charge–discharge properties and cycling performance of Li/LiFePO{sub 4} cells comprising nanocomposite polymer gel electrolytes have been evaluated at room temperature.

Shubha, Nageswaran [School of Materials Science and Engineering, Nanyang Technological University, Block N4.1, 50 Nanyang Avenue, Singapore 639798 (Singapore)] [School of Materials Science and Engineering, Nanyang Technological University, Block N4.1, 50 Nanyang Avenue, Singapore 639798 (Singapore); Prasanth, Raghavan [School of Materials Science and Engineering, Nanyang Technological University, Block N4.1, 50 Nanyang Avenue, Singapore 639798 (Singapore) [School of Materials Science and Engineering, Nanyang Technological University, Block N4.1, 50 Nanyang Avenue, Singapore 639798 (Singapore); Energy Research Institute - NTU (ERI-N) Research Techno Plaza, 50 Nanyang Drive, Singapore 637553 (Singapore); TUM-CREATE Center for Electromobility, Nanyang Technological University, Singapore 637553 (Singapore); Hoon, Hng Huey [School of Materials Science and Engineering, Nanyang Technological University, Block N4.1, 50 Nanyang Avenue, Singapore 639798 (Singapore)] [School of Materials Science and Engineering, Nanyang Technological University, Block N4.1, 50 Nanyang Avenue, Singapore 639798 (Singapore); Srinivasan, Madhavi, E-mail: madhavi@ntu.edu.sg [School of Materials Science and Engineering, Nanyang Technological University, Block N4.1, 50 Nanyang Avenue, Singapore 639798 (Singapore) [School of Materials Science and Engineering, Nanyang Technological University, Block N4.1, 50 Nanyang Avenue, Singapore 639798 (Singapore); Energy Research Institute - NTU (ERI-N) Research Techno Plaza, 50 Nanyang Drive, Singapore 637553 (Singapore); TUM-CREATE Center for Electromobility, Nanyang Technological University, Singapore 637553 (Singapore)

2013-02-15T23:59:59.000Z

332

Thermal aging of electrolytes used in lithium-ion batteries – An investigation of the impact of protic impurities and different housing materials  

Science Journals Connector (OSTI)

Abstract Thermal degradation products in lithium-ion batteries result mainly from hydrolysis sensitivity of lithium hexafluorophosphate (LiPF6). As organic carbonate solvents contain traces of protic impurities, the thermal decomposition of electrolytes is enhanced. Therefore, resulting degradation products are studied with nuclear magnetic resonance spectroscopy (NMR) and gas chromatography mass spectrometry (GC–MS). The electrolyte contains 1 M LiPF6 in a binary mixture of ethylene carbonate (EC) and diethylene carbonate (DEC) in a ratio of 1:2 (v/v) and is aged at ambient and elevated temperature. The impact of protic impurities, either added as deionized water or incorporated in positive electrode material, upon aging is investigated. Further, the influence of different housing materials on the electrolyte degradation is shown. Difluorophosphoric acid is identified as main decomposition product by NMR-spectroscopy. Traces of other decomposition products are determined by headspace GC–MS. Acid–base and coulometric titration are used to determine the total amount of acid and water content upon aging, respectively. The aim of this investigation is to achieve profound understanding about the thermal decomposition of one most common used electrolyte in a battery-like housing material.

Patricia Handel; Gisela Fauler; Katja Kapper; Martin Schmuck; Christoph Stangl; Roland Fischer; Frank Uhlig; Stefan Koller

2014-01-01T23:59:59.000Z

333

Poly vinyl acetate used as a binder for the fabrication of a LiFePO4-based composite cathode for lithium-ion batteries  

Science Journals Connector (OSTI)

ABSTRACT This paper describes a method for the preparation of composite cathodes for lithium ion-batteries by using poly vinyl acetate (PVAc) as a binder. \\{PVAc\\} is a non-fluorinated water dispersible polymer commonly used in a large number of industrial applications. The main advantages for using of this polymer are related to its low cost and negligible toxicity. Furthermore, since the \\{PVAc\\} is water processable, its use allows to replace the organic solvent, employed to dissolve the fluorinated polymer normally used as a binder in lithium battery technology, with water. In such a way it is possible to decrease the hazardousness of the preparation process as well as the production costs of the electrodes. In the paper the preparation, characterization and electrochemical performance of a LiFePO4 electrode based on \\{PVAc\\} as the binder is described. Furthermore, to assess the effect of the \\{PVAc\\} binder on the electrode properties, its performance is compared to that of a conventional electrode employing PVdF-HFP as a binder.

Pier Paolo Prosini; Maria Carewska; Cinzia Cento; Amedeo Masci

2014-01-01T23:59:59.000Z

334

nano | EMSL  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

nano nano Leads No leads are available at this time. Molecular Selectivity of Brown Carbon Chromophores. Abstract: Complementary methods of high-resolution mass spectrometry and...

335

Flower-like SnO2 nanoparticles grown on graphene as anode materials for lithium-ion batteries  

Science Journals Connector (OSTI)

Tin oxide (SnO2)/graphene composite was synthesized from SnCl2?·?2H2O and graphene oxide (GO) by a wet chemical-hydrothermal route. The GO was reduced to graphene nanosheet (GNS) and flower-like SnO2 nano-crystal...

Qi Guo; Xue Qin

2014-04-01T23:59:59.000Z

336

A Facile synthesis of flower-like Co{sub 3}O{sub 4} porous spheres for the lithium-ion battery electrode  

SciTech Connect (OSTI)

The porous hierarchical spherical Co{sub 3}O{sub 4} assembled by nanosheets have been successfully fabricated. The porosity and the particle size of the product can be controlled by simply altering calcination temperature. SEM, TEM and SAED were performed to confirm that mesoporous Co{sub 3}O{sub 4} nanostructures are built-up by numerous nanoparticles with random attachment. The BET specific surface area and pore size of the product calcined at 280 deg. C are 72.5 m{sup 2} g{sup -1} and 4.6 nm, respectively. Our experiments further demonstrated that electrochemical performances of the synthesized products working as an anode material of lithium-ion battery are strongly dependent on the porosity. - Graphical abstract: The flower-like Co{sub 3}O{sub 4} porous spheres with hierarchical structure have been successfully prepared via a simple calcination process using cobalt hydroxide as precursor.

Zheng Jun; Liu Jing; Lv Dongping; Kuang Qin [State Key Laboratory for Physical Chemistry of Solid Surfaces and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005 (China); Jiang Zhiyuan, E-mail: zyjiang@xmu.edu.c [State Key Laboratory for Physical Chemistry of Solid Surfaces and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005 (China); Xie Zhaoxiong; Huang Rongbin; Zheng Lansun [State Key Laboratory for Physical Chemistry of Solid Surfaces and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005 (China)

2010-03-15T23:59:59.000Z

337

A ternary phased SnO2-Fe2O3/SWCNTs nanocomposite as a high performance anode material for lithium ion batteries  

Science Journals Connector (OSTI)

Abstract A new SnO2-Fe2O3/SWCNTs (single-walled carbon nanotubes) ternary nanocomposite was first synthesized by a facile hydrothermal approach. SnO2 and Fe2O3 nanoparticles (NPs) were homogeneously located on the surface of SWCNTs, as confirmed by X-ray diffraction (XRD), transmission electron microscope (TEM) and energy dispersive X-ray spectroscopy (EDX). Due to the synergistic effect of different components, the as synthesized SnO2-Fe2O3/SWCNTs composite as an anode material for lithium-ion batteries exhibited excellent electrochemical performance with a high capacity of 692 mAh·g?1 which could be maintained after 50 cycles at 200 mA·g?1. Even at a high rate of 2000 mA·g?1, the capacity was still remained at 656 mAh·g?1.

Wangliang Wu; Yi Zhao; Jiaxin Li; Chuxin Wu; Lunhui Guan

2014-01-01T23:59:59.000Z

338

Significant impact of 2D graphene nanosheets on large volume change tin-based anodes in lithium-ion batteries: A review  

Science Journals Connector (OSTI)

Abstract Sn-based materials have attracted much attention as anodes in lithium ion batteries (LIBs) due to their low cost, high theoretical capacities, and high energy density. However, their practical applications are limited by the poor cyclability originating from the huge volume changes. Graphene nanosheets (GNSs), a novel two-dimensional carbon sheet with one atom thickness and one of the thinnest materials, significantly address the challenges of Sn-based anodes as excellent buffering materials, showing great research interests in LIBs. In this review, various nanocomposites of GNSs/Sn-based anodes are summarized in detail, including binary and ternary composites. The significant impact of 2D \\{GNSs\\} on the volume change of Sn-based anodes during cycling is discussed, along with with their preparation methods, properties and enhanced LIB performance.

Yang Zhao; Xifei Li; Bo Yan; Dejun Li; Stephen Lawes; Xueliang Sun

2015-01-01T23:59:59.000Z

339

Electrochemical performance of polyaniline coated LiMn{sub 2}O{sub 4} cathode active material for lithium ion batteries  

SciTech Connect (OSTI)

LiMn{sub 2}O{sub 4} compound are synthesized by combustion method using glycine as a fuel at temperature (T), 800°C which was coated by a polyaniline. The goal of this procedure is to promote better electronic conductivity of the LiMn{sub 2}O{sub 4} particles in order to improve their electrochemical performance for their application as cathodes in secondary lithium ion batteries. The structures of prepared products have been investigated by X-ray diffraction (XRD) and scanning electron microscopy (SEM). To investigate the effect of polyaniline coating galvanostatic charge-discharge cycling (148 mA g{sup ?1}) studies are made in the voltage range of 3.5-4.5 V vs. Li at room temperature. Electrochemical performance of the LiMn{sub 2}O{sub 4} was significantly improved by the polaniline coating.

?ahan, Halil, E-mail: halil@erciyes.edu.tr; Dokan, Fatma K?l?c, E-mail: halil@erciyes.edu.tr; Ayd?n, Abdülhamit, E-mail: halil@erciyes.edu.tr; Özdemir, Burcu, E-mail: halil@erciyes.edu.tr; Özdemir, Nazl?, E-mail: halil@erciyes.edu.tr; Patat, ?aban, E-mail: halil@erciyes.edu.tr [Department of Chemistry, Science Faculty, Erciyes University, Kayseri, 38039 (Turkey)

2013-12-16T23:59:59.000Z

340

Identifying surface structural changes in layered Li-excess nickel manganese oxides in high voltage lithium ion batteries: A joint experimental and theoretical study  

SciTech Connect (OSTI)

High voltage cathode materials Li-excess layered oxide compounds Li[Ni{sub x}Li{sub 1/3-2x/3}Mn{sub 2/3-x/3}]O{sub 2} (0 < x < 1/2) are investigated in a joint study combining both computational and experimental methods. The bulk and surface structures of pristine and cycled samples of Li[Ni{sub 1/5}Li{sub 1/5}Mn{sub 3/5}]O{sub 2} are characterized by synchrotron X-Ray diffraction together with aberration corrected Scanning Transmission Electron Microscopy (a-S/TEM). Electron Energy Loss Spectroscopy (EELS) is carried out to investigate the surface changes of the samples before/after electrochemical cycling. Combining first principles computational investigation with our experimental observations, a detailed lithium de-intercalation mechanism is proposed for this family of Li-excess layered oxides. The most striking characteristics in these high voltage high energy density cathode materials are (1) formation of tetrahedral lithium ions at voltage less than 4.45 V and (2) the transition metal (TM) ions migration leading to phase transformation on the surface of the materials. We show clear evidence of a new spinel-like solid phase formed on the surface of the electrode materials after high-voltage cycling. It is proposed that such surface phase transformation is one of the factors contributing to the first cycle irreversible capacity and the main reason for the intrinsic poor rate capability of these materials.

Xu, Bo; Fell, Christopher R.; Chi, Miaofang; Meng, Ying Shirley (ORNL); (Florida); (UCSD)

2011-09-06T23:59:59.000Z

Note: This page contains sample records for the topic "lithium ion nano" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

Co2SnO4 nanocrystals anchored on graphene sheets as high-performance electrodes for lithium-ion batteries  

Science Journals Connector (OSTI)

Abstract Cubic spinel Co2SnO4/graphene sheets (Co2SnO4/G) nanocomposites are synthesized by a facile hydrothermal process in alkaline solution, using SnCl4 · 4H2O, CoCl2 · 6H2O and graphene oxide (GO) as the precursor. The structure and morphology of the resulting nanocomposites are characterized with X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Co2SnO4 nanoparticles are uniformly dispersed among graphene sheets, with a size of 80–150 nm. As anode material for lithium-ion batteries, the galvanostatic charge/discharge and cyclic voltammetry are conducted to indicate the electrochemical performance of Co2SnO4/G nanocomposites. Co2SnO4/G nanocomposites exhibit an improved electrochemical performance compared with pure Co2SnO4 nanoparticles, such as high reversible capacities, good cycling stability and excellent rate performance. The initial charge and discharge capacities are 996.1 mAh g?1 and 1424.8 mAh g?1. After 100 cycles, the reversible charge/discharge capacities still remain 1046/1061.1 mAh g?1 at the current density of 100 mA g?1. Co2SnO4 nanoparticles coated by Graphene sheets with superior electrochemical performance indicate that Co2SnO4/G nanocomposites are promising electrode materials used for high-storage lithium-ion batteries.

Chang Chen; Qiang Ru; Shejun Hu; Bonan An; Xiong Song; Xianhua Hou

2015-01-01T23:59:59.000Z

342

Lithium metal oxide electrodes for lithium cells and batteries  

DOE Patents [OSTI]

A lithium metal oxide positive electrode for a non-aqueous lithium cell is disclosed. The cell is prepared in its initial discharged state and has a general formula xLiMO.sub.2.(1-x)Li.sub.2 M'O.sub.3 in which 0ion with at least one ion being Mn or Ni, and where M' is one or more tetravalent ion. Complete cells or batteries are disclosed with anode, cathode and electrolyte as are batteries of several cells connected in parallel or series or both.

Thackeray, Michael M. (Naperville, IL); Johnson, Christopher S. (Naperville, IL); Amine, Khalil (Downers Grove, IL); Kim, Jaekook (Naperville, IL)

2004-01-13T23:59:59.000Z

343

E-Print Network 3.0 - all-solid-state lithium secondary Sample...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

SOC and SOH of Lithium-ion Cells A. Zenati1,* , Ph. Desprez1 , H. Razik2 and S. Rael3 1 SAFT... at analyzing lithium-ion batteries performances with aging, for different state of...

344

Hydrogen, lithium, and lithium hydride production  

DOE Patents [OSTI]

A method of producing high purity lithium metal is provided, where gaseous-phase lithium metal is extracted from lithium hydride and condensed to form solid high purity lithium metal. The high purity lithium metal may be hydrided to provide high purity lithium hydride.

Brown, Sam W; Spencer, Larry S; Phillips, Michael R; Powell, G. Louis; Campbell, Peggy J

2014-03-25T23:59:59.000Z

345

Phosphorus derivatives as electrolyte additives for lithium-ion battery: The removal of O2 generated from lithium-rich layered oxide cathode  

Science Journals Connector (OSTI)

Abstract Direct internal pressure measurements of the cylindrical Li-ion cells with a mixture of LiCoO2 and Li1.167Ni0.233Co0.1Mn0.467Mo0.033O2 (a solid solution between 0.4 Li2Mn0.8Ni0.1Mo0.1O3 and 0.6 LiNi0.4Co0.2Mn0.4O2) as cathode and graphite as anode have been performed during cell charging. Cell internal pressure at the end of charging is greatly reduced from 2.85 to 0.84–1.84 bar by adding a small amount of phosphorus derivatives such as triphenyl phosphine (TPP), ethyl diphenylphosphinite (EDP), and triethyl phosphite (TEP) into a carbonate-based electrolyte. The phosphorus derivatives are supposed to react with O2 generated from the decomposition of the Li2MnO3 component. The chemical states of additive molecules before and after the charging process have been characterized with a nuclear magnetic resonance (NMR) spectroscopy and gas chromatography–mass spectrometry (GC–MS). It has also been shown that those additives improve the cycle life when applied in coin full cells.

Dong Joon Lee; Dongmin Im; Young-Gyoon Ryu; Seoksoo Lee; Jaegu Yoon; Jeawoan Lee; Wanuk Choi; Insun Jung; Seungyeon Lee; Seok-Gwang Doo

2013-01-01T23:59:59.000Z

346

A theoretical study of the gas-phase ion pair SN2 reactions of lithium halide and methyl halide with inversion and retention mechanisms  

Science Journals Connector (OSTI)

Identity and non-identity ion pair SN2 reactions, LiX+CH3X, LiY+CH3X (Y, X=F, Cl, Br and I) were investigated using CCSD(T) calculations. Two possible reaction mechanisms, inversion and retention, were discussed. Introduction of lithium cation will significantly raise the inversion barriers and may lower the retention barriers. The analysis of barrier gaps between the two channels indicates that the retention mechanism is favorable for all of the reactions involving fluorine, in contrast to the anionic SN2 reactions at carbon where inversion reaction pathway is much more favorable for all halogens. The stabilization energies for dipole–dipole complexes CH3X?LiY (Y=F–I) are found to have a good correlation with the electronegativity of X. The CCSD(T) central barriers and overall barriers show good agreement with the predictions of Marcus equation and its modification, respectively. Further interesting feature of the non-identity ion pair SN2 reactions is a good correlation between inversion central barriers and the composite geometric looseness (%L).

Yan Xiong; Hua-jie Zhu; Yi Ren

2003-01-01T23:59:59.000Z

347

LiMn2O4 cathode doped with excess lithium and synthesized by co-precipitation for Li-ion batteries  

Science Journals Connector (OSTI)

LiMn2O4 exhibits lower cost, acceptable environmental characteristics, and better safety properties than other positive-electrode (cathode) materials for lithium-ion batteries. In this study, excess Li doped Li1+xMn2O4 is synthesized by a well-mixed co-precipitation method with LiOH utilized as both the reactant and co-precipitation agent. The precursor is calcined for various heating times and temperatures to form a fine powder of a single spinel phase with different particle sizes, size distributions, and morphology. The minimum heating temperature is around 400 °C. For short heating periods, Mn2O3 impurity is observed, but disappears after longer heating times. The average particle size is in the range 2–8 ?m for powders calcined between 700 and 870 °C. The lattice parameter increases with increase in heating temperature. The electrochemical behavior of LiMn2O4 powder is examined by using test cells which consist of a cathode, a metallic lithium anode, and an electrolyte of 1 M LiPF6 in a 1:1 (volume ratio) mixture of ethylene carbonate (EC) and dimethyl carbonate (DMC). Cells with cathodes of LiMn2O4, Li1.08Mn2O4 and Li1.1Mn2O4 give a capacity of 85, 109 and 126 mAh g?1, respectively. The introduction of excess Li in LiMn2O4 apparently increases the capacity, and decreases significantly the rate of capacity degradation on charge–discharge cycling.

H.W Chan; J.G Duh; S.R Sheen

2003-01-01T23:59:59.000Z

348

Develop high energy high power Li-ion battery cathode materials : a first principles computational study  

E-Print Network [OSTI]

of the Layered, “Li-Excess” Lithium-Ion Battery Electrodeof the Layered, "Li-Excess" Lithium-Ion Battery ElectrodeCATION MIGRATION IN LITHIUM EXCESS NICKEL MANGANESE OXIDES

Xu, Bo; Xu, Bo

2012-01-01T23:59:59.000Z

349

Role of two-electron processes in the excitation-ionization of lithium atoms by fast ion impact  

E-Print Network [OSTI]

We study excitation and ionization in the 1.5 MeV/amu O$^{8+}$-Li collision system, which was the subject of a recent reaction-microscope-type experiment [Fischer \\textit{et al.}, Phys. Rev. Lett. \\textbf{109}, 113202 (2012)]. Starting from an independent-electron model based on determinantal wave functions and using single-electron basis generator method and continuum distorted-wave with eikonal initial-state calculations we show that pure single ionization of a lithium $K$-shell electron is too weak a process to explain the measured single differential cross section. Rather, our analysis suggests that two-electron excitation-ionization processes occur and have to be taken into account when comparing with the data. Good agreement is obtained only if we replace the independent-electron calculation by an independent-event model for one of the excitation-ionization processes and also take a shake-off process into account.

Kirchner, T; Gulyás, L

2015-01-01T23:59:59.000Z

350

Overcoming Processing Cost Barriers of High-Performance Lithium...  

Broader source: Energy.gov (indexed) [DOE]

methods - Tailored Aqueous Colloids for Lithium-Ion Electrodes (TACLE) B.L. Armstrong et al., U.S. Patent Application No. 13651,270. - Surface charge measurement,...

351

Overcoming Processing Cost Barriers of High-Performance Lithium...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Cost Barriers of High-Performance Lithium-Ion Battery Electrodes 2012 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer...

352

Nano Res. 2011, 4(3): 290296290 Hybrid Silicon-Carbon Nanostructured Composites as Superior  

E-Print Network [OSTI]

, including solar cells, fuel cells, supercapacitors, and lithium ion batteries, has increased rapidly [1 for Lithium Ion Batteries Po-Chiang Chen1 , Jing Xu1 , Haitian Chen2 , and Chongwu Zhou2 ( ) 1 Mork Family fashion using a conventional sputtering system. When used as the anode in lithium ion batteries

Zhou, Chongwu

353

Jeff Chamberlain on Lithium-air batteries  

ScienceCinema (OSTI)

Jeff Chamberlain, technology transfer expert at Argonne National Laboratory, speaks on the new technology Lithium-air batteries, which could potentially increase energy density by 5-10 times over lithium-ion batteries. More information at http://www.anl.gov/Media_Center/News/2009/batteries090915.html

Chamberlain, Jeff

2013-04-19T23:59:59.000Z

354

Jeff Chamberlain on Lithium-air batteries  

SciTech Connect (OSTI)

Jeff Chamberlain, technology transfer expert at Argonne National Laboratory, speaks on the new technology Lithium-air batteries, which could potentially increase energy density by 5-10 times over lithium-ion batteries. More information at http://www.anl.gov/Media_Center/News/2009/batteries090915.html

Chamberlain, Jeff

2009-01-01T23:59:59.000Z

355

A Material Change: Bringing Lithium Production Back to America | Department  

Broader source: Energy.gov (indexed) [DOE]

A Material Change: Bringing Lithium Production Back to America A Material Change: Bringing Lithium Production Back to America A Material Change: Bringing Lithium Production Back to America June 29, 2012 - 5:34pm Addthis The Rockwood Lithium manufacturing facility in Kings Mountain, North Carolina. | Photo courtesy of Rockwood Lithium. The Rockwood Lithium manufacturing facility in Kings Mountain, North Carolina. | Photo courtesy of Rockwood Lithium. Niketa Kumar Niketa Kumar Public Affairs Specialist, Office of Public Affairs Between 1980 and 2009, the global demand for lithium has tripled. This metal is a key material in a number of growing industries -- including advanced vehicle batteries and consumer electronics. But more specifically, lithium-ion batteries are a vital component in electric vehicles and other rechargeable batteries for consumer electronics, and are used to produce

356

Synthesis of Ti-based electrodes using Ti-salt flocculated sludge and their application in lithium-ion batteries  

SciTech Connect (OSTI)

We report a simple strategy to synthesize the nanostructured TiO{sub 2} samples by a solid state reaction using Ti-salt flocculated sludge. The structure and morphology of the Ti-salt flocculated sludge, nanostructured TiO{sub 2} samples and pure commercial Aldrich TiO{sub 2} powder were characterized by powder X-ray diffraction and field emission scanning electron microscopy (FE-SEM). The electrochemical performances were evaluated in coin type cells. Nanostructured TiO{sub 2} samples, obtained by Ti-salt flocculated sludge shows a higher capacity and better cycling performances than pure commercial Aldrich TiO{sub 2} powder at the cutoff of 1.0–2.5 V especially at high current rate. The enhanced cycling performance can be attributed to the facts that their high crystallinity and uniform nano-sized distribution.

Kang, Jungwon; Rai, Alok Kumar; Kim, Sungjin; Choi, Eunseok; Yoo, Insun [Department of Materials Science and Engineering, Chonnam National University, 300 Yongbong-dong, Buk-gu, Gwangju 500-757 (Korea, Republic of)] [Department of Materials Science and Engineering, Chonnam National University, 300 Yongbong-dong, Buk-gu, Gwangju 500-757 (Korea, Republic of); Kim, Jongho [School of Applied Chemical Engineering and the Research Institute for Catalysis, Chonnam National University, 300 Yongbong-dong, Buk-gu, Gwangju 500-757 (Korea, Republic of)] [School of Applied Chemical Engineering and the Research Institute for Catalysis, Chonnam National University, 300 Yongbong-dong, Buk-gu, Gwangju 500-757 (Korea, Republic of); Kim, Jaekook, E-mail: jaekook@chonnam.ac.kr [Department of Materials Science and Engineering, Chonnam National University, 300 Yongbong-dong, Buk-gu, Gwangju 500-757 (Korea, Republic of)] [Department of Materials Science and Engineering, Chonnam National University, 300 Yongbong-dong, Buk-gu, Gwangju 500-757 (Korea, Republic of)

2012-10-15T23:59:59.000Z

357

Layered Li1+x(Ni0.425Mn0.425Co0.15)1xO2 Positive Electrode Materials for Lithium-Ion Batteries  

E-Print Network [OSTI]

Layered Li1+x(Ni0.425Mn0.425Co0.15)1­xO2 Positive Electrode Materials for Lithium-Ion Batteries : Layered Li1+x(Ni0.425Mn0.425Co0.15)1­xO2 materials (0 x 0.12) were prepared at 1000°C for 12 h in air transition metal ions induced for charge compensation an increase in the average transition metal oxidation

Boyer, Edmond

358

Design and Simulation of Lithium Rechargeable Batteries  

E-Print Network [OSTI]

A New Rechargeable Plastic Li-Ion Battery," Lithium Batteryion battery developed at Bellcore in Red Bank, NJ.1-6 The experimental prototYpe cell has the configuration: Li

Doyle, C.M.

2010-01-01T23:59:59.000Z

359

Dense CoO/graphene stacks via self-assembly for improved reversibility as high performance anode in lithium ion batteries  

Science Journals Connector (OSTI)

Abstract Here, we propose a novel strategy to prepare dense stacks composed of alternating CoO and graphene layers for an anode in lithium ion batteries (LIBs), which contributes to enhanced stability and relatively large reversible capacity. This is accomplished by spontaneously pre-aligning negatively charged CoO-anchored graphene oxide (CG) and positively charged amine-functionalized graphene (GN) in an acidic medium, followed by thermal reduction. The performance of this product is contrasted with that of CG prepared under the identical conditions without the addition of GN, in which CoO nanoparticles are sandwiched between relatively loose and randomly oriented graphene stacks. For example, the composite delivers a capacity greater than 800 mAh g?1 with a fading rate of 0.04 mAh g?1 cycle?1 during 1000 charge/discharge (C/D) cycles at 1.0 A g?1, in contrast to ca. 400 mAh g?1 and 0.24 mAh g?1 cycle?1 for thermally reduced CG without the addition of GN. The origin of the superior electrochemical performance in the dense stacks is ascribed to the enhanced reversibility of a conversion reaction, which in turn contributes to a persistent formation/dissolution of gel-like polymer films (i.e., stable pseudo-capacitance). Experimental evidences that substantiate the aforementioned behaviors (improved reversibility for both processes) are presented.

S.J. Richard Prabakar; R. Suresh Babu; Minhak Oh; Myoung Soo Lah; Su Cheol Han; Jaehyang Jeong; Myoungho Pyo

2014-01-01T23:59:59.000Z

360

A rapid microwave heating route to synthesize graphene modified LiFePO4/C nanocomposite for rechargeable lithium-ion batteries  

Science Journals Connector (OSTI)

Abstract A simple and rapid method for synthesizing graphene modified LiFePO4/C nanocomposite has been developed for the first time by using a microwave heating. The obtained sample is characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Raman spectra, Fourier transform infrared spectroscopy (FTIR) and various electrochemical testing techniques. XRD results indicate that the nanosized olivine LiFePO4/(C+graphene) is successfully synthesized. The size of as-synthesized nanoparticles can be controlled below 200 nm with good reproducibility through this route. TEM image shows that the LiFePO4/C nanoparticles are embedded in graphene sheets. The electrochemical performance results reveal that the modification of LiFePO4/C with graphene could construct an effective conducting network, which significantly enhance the properties of LiFePO4/C based composite, including high discharge capacity, stable cycle performance, good rate capability and small charge-transfer resistance. The excellent performance shows that the graphene modified LiFePO4/C synthesized via microwave heating is a promising cathode material for rechargeable lithium-ion batteries.

Zhaozhi Wang; Haifu Guo; Peng Yan

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "lithium ion nano" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

Sonochemical synthesis of SnO2/carbon nanotubes encapsulated in graphene sheets composites for lithium ion batteries with superior electrochemical performance  

Science Journals Connector (OSTI)

Abstract The SnO2/carbon nanotubes encapsulated in graphene sheets (CSGN) composites are synthesized via a sonochemical method which is straightforward, low-cost and operable under ambient conditions. The open spaces formed by carbon nanotubes and graphene offering the accommodation of volume change and the access of an easy electrolyte-wetting, and the improved electrical conductivity by the presence of graphene and carbon nanotubes, lead to the superior cycling performance. As a result, the CSGN with SnO2 content of 61.4 wt% exhibits a reversible specific capacity of 842.9 mAh g?1 at the first cycle and retains 793.8 mAh g?1 after 50 cycles at a current density of 125 mA g?1, indicating a high capacity retention rate of 94%. The cycling performance is attributed to the unique structure of CSGN and enhanced electrical conductivity, which may make much sense to the structure designing of other electrode materials for lithium ion batteries.

Bin Huang; Juan Yang; Youlan Zou; Lulu Ma; Xiangyang Zhou

2014-01-01T23:59:59.000Z

362

Lithium Metal Anodes for Rechargeable Batteries  

SciTech Connect (OSTI)

Rechargeable lithium metal batteries have much higher energy density than those of lithium ion batteries using graphite anode. Unfortunately, uncontrollable dendritic lithium growth inherent in these batteries (upon repeated charge/discharge cycling) and limited Coulombic efficiency during lithium deposition/striping has prevented their practical application over the past 40 years. With the emerging of post Li-ion batteries, safe and efficient operation of lithium metal anode has become an enabling technology which may determine the fate of several promising candidates for the next generation of energy storage systems, including rechargeable Li-air battery, Li-S battery, and Li metal battery which utilize lithium intercalation compounds as cathode. In this work, various factors which affect the morphology and Coulombic efficiency of lithium anode will be analyzed. Technologies used to characterize the morphology of lithium deposition and the results obtained by modeling of lithium dendrite growth will also be reviewed. At last, recent development in this filed and urgent need in this field will also be discussed.

Xu, Wu; Wang, Jiulin; Ding, Fei; Chen, Xilin; Nasybulin, Eduard N.; Zhang, Yaohui; Zhang, Jiguang

2014-02-28T23:59:59.000Z

363

One-pot synthesis of SnO{sub 2}/reduced graphene oxide nanocomposite in ionic liquid-based solution and its application for lithium ion batteries  

SciTech Connect (OSTI)

Graphical abstract: - Highlights: • A facile and low-temperature method is developed for SnO{sub 2}/graphene composite. • Synthesis performed in a choline chloride-based ionic liquid. • The composite shows an enhanced cycling stability as anode for Li-ion batteries. • 4 nm SnO{sub 2} nanoparticles mono-dispersed on the surface of reduced graphene oxide. - Abstract: A facile and low-temperature method is developed for SnO{sub 2}/graphene composite which involves an ultrasonic-assistant oxidation–reduction reaction between Sn{sup 2+} and graphene oxide in a choline chloride–ethylene glycol based ionic liquid under ambient conditions. The reaction solution is non-corrosive and environmental-friendly. Moreover, the proposed technique does not require complicated infrastructures and heat treatment. The SnO{sub 2}/graphene composite consists of about 4 nm sized SnO{sub 2} nanoparticles with cassiterite structure mono-dispersed on the surface of reduced graphene oxide. As anode for lithium-ion batteries, the SnO{sub 2}/graphene composite shows a satisfying cycling stability (535 mAh g{sup ?1} after 50 cycles @100 mA g{sup ?1}), which is significantly prior to the bare 4 nm sized SnO{sub 2} nanocrsytals. The graphene sheets in the hybrid nanostructure could provide a segmentation effect to alleviate the volume expansion of the SnO{sub 2} and restrain the small and active Sn-based particles aggregating into larger and inactive clusters during cycling.

Gu, Changdong, E-mail: cdgu@zju.edu.cn; Zhang, Heng; Wang, Xiuli; Tu, Jiangping

2013-10-15T23:59:59.000Z

364

Journal of Power Sources 160 (2006) 662673 Power and thermal characterization of a lithium-ion battery  

E-Print Network [OSTI]

-ion battery; Electrochemical modeling; Hybrid-electric vehicles; Transient; Solid-state diffusion; Heat, indicating solid-state diffusion is the limiting mechanism. The 3.9 V cell-1 maximum limit, meant to protect where batteries are used as a transient pulse power source, cycled about a relatively fixed state

365

Received 29 Aug 2012 | Accepted 13 Mar 2013 | Published 16 Apr 2013 High-power lithium ion microbatteries from  

E-Print Network [OSTI]

diffusion through the active anode and cathode materials, as well as designs that reduce ion diffusion time, large percentage of active material and highly conductive electrodes. Such a microarchitecture could, Illinois 61801, USA. 2 Department of Materials Science and Engineering, University of Illinois, Urbana

Braun, Paul

366

3D hollow Sn@carbon-graphene hybrid material as promising anode for lithium-ion batteries  

Science Journals Connector (OSTI)

A 3D hollow Sn@C-graphene hybrid material (HSCG) with high capacity and excellent cyclic and rate performance is fabricated by a one-pot assembly method. Due to the fast electron and ion transfer as well as the efficient carbon buffer structure, the ...

Xiaoyu Zheng, Wei Lv, Yan-Bing He, Chen Zhang, Wei Wei, Ying Tao, Baohua Li, Quan-Hong Yang

2014-01-01T23:59:59.000Z

367

Challenges and Prospects of Lithium–Sulfur Batteries  

Science Journals Connector (OSTI)

His research interests are in the area of materials for rechargeable batteries, fuel cells, and solar cells, including novel synthesis approaches for nanomaterials. ... Lithium-ion (Li-ion) batteries have the highest energy density among the rechargeable battery chemistries. ...

Arumugam Manthiram; Yongzhu Fu; Yu-Sheng Su

2012-10-25T23:59:59.000Z

368

EMSL - nano  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

nano en Molecular Selectivity of Brown Carbon Chromophores. http:www.emsl.pnl.govemslwebpublicationsmolecular-selectivity-brown-carbon-chromophores

369

Synthesis Of Nitrogen-Doped Graphene Films For Lithium Battery Application  

Science Journals Connector (OSTI)

Synthesis Of Nitrogen-Doped Graphene Films For Lithium Battery Application ... Fabrication of Nitrogen-Doped Holey Graphene Hollow Microspheres and Their Use as an Active Electrode Material for Lithium Ion Batteries ...

Arava Leela Mohana Reddy; Anchal Srivastava; Sanketh R. Gowda; Hemtej Gullapalli; Madan Dubey; Pulickel M. Ajayan

2010-10-08T23:59:59.000Z

370

Biologically enhanced cathode design for improved capacity and cycle life for lithium-oxygen batteries  

E-Print Network [OSTI]

Lithium-oxygen batteries have a great potential to enhance the gravimetric energy density of fully packaged batteries by two to three times that of lithium ion cells. Recent studies have focused on finding stable electrolytes ...

Oh, Dahyun

371

Synthesis of Li-excess layered cathode material with enhanced reversible capacity for Lithium ion batteries through the optimization of precursor synthesis method  

Science Journals Connector (OSTI)

Abstract LixNi1/3Mn2/3O2 cathode materials have been synthesized through a facile reduction-ion exchange of P3-Na2/3Ni1/3Mn2/3O2 precursors prepared by solid state (SS), spray dry (SD) and co-precipitation (CP) methods. The influence of precursor synthesis method on the structure, morphology and electrochemical performances of LixNi1/3Mn2/3O2 has been investigated. X-ray diffraction (XRD) results of LixNi1/3Mn2/3O2 demonstrate that all the samples exhibit similar XRD patterns as those of Lithium-excess layered cathode materials. Scanning Electron Microscope (SEM) images and Brunauer-Emment-Teller (BET) results present that the particle size, particle aggregation and surface area changed greatly with the precursor synthesis method. Galvanostatic charge-discharge results show that Li1.41Ni0.32Mn0.66O2+? cathode prepared from co-precipitation precursor exhibited high first discharge capacity of ca. 270 mAhg?1 with an initial cycle efficiency as high as 98%. The discharge capacity of Li1.41Ni0.32Mn0.66O2+? cathode after 30 cycles is over 250 mAhg?1 and it can deliver a discharge capacity roughly 210 mAhg?1 at a current density of 500 mAg?1 (2 C rate). Also, it was found that Li1.41Ni0.32Mn0.66O2+? cathode shows enhanced electrochemical performance over the Li2/3Ni1/3Mn2/3O2 cathode with respect to reversible capacity and rate capability.

Wenwen Zhao; Shinji Yamamoto; Akinobu Tanaka; Hideyuki Noguchi

2014-01-01T23:59:59.000Z

372

Automated ion-selective measurement of lithium in serum. A practical approach to result-level verification in a two-way method validation  

Science Journals Connector (OSTI)

?The Quality Assurance Department of Medix Diacor Labservice evaluated a two-way method validation procedure for serum lithium quantification in therapeutic drug monitoring In the process of a company fusion a...

S. Linko

2001-01-01T23:59:59.000Z

373

Automated ion-selective measurement of lithium in serum. A practical approach to result-level verification in a two-way method validation  

Science Journals Connector (OSTI)

The Quality Assurance Department of Medix Diacor Labservice evaluated a two-way method validation procedure for serum lithium quantification in therapeutic drug monitoring In the process of a company fusion an...

Solveig Linko

2005-01-01T23:59:59.000Z

374

Synthesis of nano-scale fast ion conducting cubic Li7La3Zr2O12  

Science Journals Connector (OSTI)

A solution-based process was investigated for synthesizing cubic Li7La3Zr2O12 (LLZO), which is known to exhibit the unprecedented combination of fast ionic conductivity, and stability in air and against Li. Sol–gel chemistry was developed to prepare solid metal–oxide networks consisting of 10 nm cross-links that formed the cubic LLZO phase at 600?° C. Sol–gel LLZO powders were sintered into 96% dense pellets using an induction hot press that applied pressure while heating. After sintering, the average LLZO grain size was 260 nm, which is 13 times smaller compared to LLZO prepared using a solid-state technique. The total ionic conductivity was 0.4 mS cm?1 at 298 K, which is the same as solid-state synthesized LLZO. Interestingly, despite the same room temperature conductivity, the sol–gel LLZO total activation energy is 0.41 eV, which 1.6 times higher than that observed in solid-state LLZO (0.26 eV). We believe the nano-scale grain boundaries give rise to unique transport phenomena that are more sensitive to temperature when compared to the conventional solid-state LLZO.

Jeff Sakamoto; Ezhiylmurugan Rangasamy; Hyunjoung Kim; Yunsung Kim; Jeff Wolfenstine

2013-01-01T23:59:59.000Z

375

Lithium Metal Oxide Electrodes For Lithium Cells And Batteries  

DOE Patents [OSTI]

A lithium metal oxide positive electrode for a non-aqueous lithium cell is disclosed. The cell is prepared in its initial discharged state and has a general formula xLiMO.sub.2.(1-x)Li.sub.2 M'O.sub.3 in which 0ion with an average trivalent oxidation state and with at least one ion being Mn or Ni, and where M' is one or more ion with an average tetravalent oxidation state. Complete cells or batteries are disclosed with anode, cathode and electrolyte as are batteries of several cells connected in parallel or series or both.

Thackeray, Michael M. (Naperville, IL); Johnson, Christopher S. (Naperville, IL); Amine, Khalil (Downers Grove, IL); Kim, Jaekook (Naperville, IL)

2004-01-20T23:59:59.000Z

376

Lithium metal oxide electrodes for lithium cells and batteries  

DOE Patents [OSTI]

A lithium metal oxide positive electrode for a non-aqueous lithium cell is disclosed. The cell is prepared in its initial discharged state and has a general formula xLiMO.sub.2.(1-x)Li.sub.2M'O.sub.3 in which 0ion with an average trivalent oxidation state and with at least one ion being Mn or Ni, and where M' is one or more ion with an average tetravalent oxidation state. Complete cells or batteries are disclosed with anode, cathode and electrolyte as are batteries of several cells connected in parallel or series or both.

Thackeray, Michael M. (Naperville, IL); Johnson, Christopher S. (Naperville, IL); Amine, Khalil (Oakbrook, IL)

2008-12-23T23:59:59.000Z

377

Sorption of lithium from a geothermal brine by pelletized mixed aluminum-lithium hydrous oxides  

SciTech Connect (OSTI)

An inorganic ion exchanger was evaluated by the Bureau of Mines for recovering lithium from geothermal brines. The ion exchanger or sorbent was mixed hydrous oxide of aluminum and lithium that had been dried at 100 C. The dried precipitate was pelletized with a sodium silicate binder to improve flow rates in sorption tests. The sorbent was loaded to 2 mg Li/g of pellets and sorption from the solution was independent of the concentrations of Ca, Fe, Mn, and Zn. Manganese and zinc were sorbed by the pellets but did not suppress lithium sorption. Lithium was desorbed with water, but none of the washing solutions investigated removed entrained brine without stripping lithium. The complex nature of the sorption mechanisms is discussed.

Schultze, L.E.; Bauer, D.J.

1985-01-01T23:59:59.000Z

378

CRADA Final Report for NFE-08-01826: Development and application of processing and processcontrol for nano-composite materials for lithium ion batteries  

SciTech Connect (OSTI)

Oak Ridge National Laboratory and A123 Systems, Inc. collaborated on this project to develop a better understanding, quality control procedures, and safety testing for A123 System’s nanocomposite separator (NCS) technology which is a cell based patented technology and separator. NCS demonstrated excellent performance. x3450 prismatic cells were shown to survive >8000 cycles (1C/2C rate) at room temperature with greater than 80% capacity retention with only NCS present as an alternative to conventional polyolefin. However, for a successful commercialization, the coating conditions required to provide consistent and reliable product had not been optimized and QC techniques for being able to remove defective material before incorporation into a cell had not been developed. The work outlined in this report addresses these latter two points. First, experiments were conducted to understand temperature profiles during the different drying stages of the NCS coating when applied to both anode and cathode. One of the more interesting discoveries of this study was the observation of the large temperature decrease experienced by the wet coating between the end of the infrared (IR) drying stage and the beginning of the exposure to the convection drying oven. This is not a desirable situation as the temperature gradient could have a deleterious effect on coating quality. Based on this and other experimental data a radiative transfer model was developed for IR heating that also included a mass transfer module for drying. This will prove invaluable for battery coating optimization especially where IR drying is being employed. A stress model was also developed that predicts that under certain drying conditions tensile stresses are formed in the coating which could lead to cracking that is sometimes observed after drying is complete. Prediction of under what conditions these stresses form is vital to improving coating quality. In addition to understanding the drying process other parameters such as slurry quality and equipment optimization were examined. Removal of particles and gels by filtering, control of viscosity by %solids and mixing adjustments, removal of trapped gas in the slurry and modification of coater speed and slot die gap were all found to be important for producing uniform and flaw-free coatings. Second, an in-line Hi-Pot testing method has been developed specifically for NCS that will enable detection of coating flaws that could lead to soft or hard electrical shorts within the cell. In this way flawed material can be rejected before incorporation into the cell thus greatly reducing the amount of scrap that is generated. Improved battery safety is an extremely important benefit of NCS. Evaluation of battery safety is usually accomplished by conducting a variety of tests including nail penetration, hot box, over charge, etc. For these tests entire batteries must be built but the resultant temperature and voltage responses reveal little about the breakdown mechanism. In this report is described a pinch test which is used to evaluate NCS quality at various stages including coated anode and cathode as well as assembled cell. Coupled with post-microscopic examination of the damaged ‘pinch point’ test data can assist in the coating optimization from an improved end-use standpoint. As a result of this work two invention disclosures, one for optimizing drying methodology and the other for an in-line system for flaw detection, have been filed. In addition, 2 papers are being written for submission to peer-reviewed journals.

Daniel, C.; Armstrong, B.; Maxey, C.; Sabau, A.; Wang, H.; Hagans, P. (A123 Systems, Inc.); and Babinec, S. (A123 Systems, Inc.)

2012-12-15T23:59:59.000Z

379

Argonne Transportation - Lithium Battery Technology Patents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Awarded Lithium Battery Technology Patents Awarded Lithium Battery Technology Patents "Composite-structure" material is a promising battery electrode for electric vehicles Argonne National Laboratory has been granted two U.S. patents (U.S. Pat. 6,677,082 and U.S. Pat. 6,680,143) on new "composite-structure" electrode materials for rechargeable lithium-ion batteries. Electrode compositions of this type are receiving worldwide attention. Such electrodes offer superior cost and safety features over state-of-the-art LiCoO2 electrodes that power conventional lithium-ion batteries. Moreover, they demonstrate outstanding cycling stability and can be charged and discharged at high rates, making them excellent candidates to replace LiCoO2 for consumer electronic applications and hybrid electric vehicles.

380

Development of Production-Intent Plug-In Hybrid Vehicle Using Advanced Lithium-Ion Battery Packs with Deployment to a Demonstration Fleet  

SciTech Connect (OSTI)

The primary goal of this project was to speed the development of one of the first commercially available, OEM-produced plug-in hybrid electric vehicles (PHEV). The performance of the PHEV was expected to double the fuel economy of the conventional hybrid version. This vehicle program incorporated a number of advanced technologies, including advanced lithium-ion battery packs and an E85-capable flex-fuel engine. The project developed, fully integrated, and validated plug-in specific systems and controls by using GM’s Global Vehicle Development Process (GVDP) for production vehicles. Engineering Development related activities included the build of mule vehicles and integration vehicles for Phases I & II of the project. Performance data for these vehicles was shared with the U.S. Department of Energy (DOE). The deployment of many of these vehicles was restricted to internal use at GM sites or restricted to assigned GM drivers. Phase III of the project captured the first half or Alpha phase of the Engineering tasks for the development of a new thermal management design for a second generation battery module. The project spanned five years. It included six on-site technical reviews with representatives from the DOE. One unique aspect of the GM/DOE collaborative project was the involvement of the DOE throughout the OEM vehicle development process. The DOE gained an understanding of how an OEM develops vehicle efficiency and FE performance, while balancing many other vehicle performance attributes to provide customers well balanced and fuel efficient vehicles that are exciting to drive. Many vehicle content and performance trade-offs were encountered throughout the vehicle development process to achieve product cost and performance targets for both the OEM and end customer. The project team completed two sets of PHEV development vehicles with fully integrated PHEV systems. Over 50 development vehicles were built and operated for over 180,000 development miles. The team also completed four GM engineering development Buy-Off rides/milestones. The project included numerous engineering vehicle and systems development trips including extreme hot, cold and altitude exposure. The final fuel economy performance demonstrated met the objectives of the PHEV collaborative GM/DOE project. Charge depletion fuel economy of twice that of the non-PHEV model was demonstrated. The project team also designed, developed and tested a high voltage battery module concept that appears to be feasible from a manufacturability, cost and performance standpoint. The project provided important product development and knowledge as well as technological learnings and advancements that include multiple U.S. patent applications.

No, author

2013-09-29T23:59:59.000Z

Note: This page contains sample records for the topic "lithium ion nano" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

Lithium Surface Coatings for Improved Plasma Performance in NSTX  

SciTech Connect (OSTI)

NSTX high-power divertor plasma experiments have shown, for the first time, significant and frequent benefits from lithium coatings applied to plasma facing components. Lithium pellet injection on NSTX introduced lithium pellets with masses 1 to 5 mg via He discharges. Lithium coatings have also been applied with an oven that directed a collimated stream of lithium vapor toward the graphite tiles of the lower center stack and divertor. Lithium depositions from a few mg to 1 g have been applied between discharges. Benefits from the lithium coating were sometimes, but not always seen. These improvements sometimes included decreases plasma density, inductive flux consumption, and ELM frequency, and increases in electron temperature, ion temperature, energy confinement and periods of MHD quiescence. In addition, reductions in lower divertor D, C, and O luminosity were measured.

Kugel, H W; Ahn, J -W; Allain, J P; Bell, R; Boedo, J; Bush, C; Gates, D; Gray, T; Kaye, S; Kaita, R; LeBlanc, B; Maingi, R; Majeski, R; Mansfield, D; Menard, J; Mueller, D; Ono, M; Paul, S; Raman, R; Roquemore, A L; Ross, P W; Sabbagh, S; Schneider, H; Skinner, C H; Soukhanovskii, V; Stevenson, T; Timberlake, J; Wampler, W R

2008-02-19T23:59:59.000Z

382

Synthesis of lithium intercalation materials for rechargeable battery  

Science Journals Connector (OSTI)

Lithium-based oxides (LiMOx, where M=Ni, Co, Mn) are attractive for electrode materials, because they are capable of reversibly intercalating lithium ions for rechargeable battery without altering the main unit. We developed a novel solution-based route for the synthesis of these lithium intercalation oxides, using acetates or oxides as precursors for lithium, manganese, nickel, and cobalt, respectively with proper organic solvents. The evolution of crystal structure of these materials was analyzed by X-ray diffraction. Further analysis of LiMn2O4 samples were carried out using impedance spectroscopy and Raman spectroscopy. These studies indicate that this synthetic route, without using expensive alkoxides of sol–gel process, produces high-quality lithium-based oxides useful for cathode in lithium-ion rechargeable battery.

S. Nieto-Ramos; M.S. Tomar

2001-01-01T23:59:59.000Z

383

Microfabrication of a multilayer nano-ESI focusing electrode based on SU-8 material  

Science Journals Connector (OSTI)

A new ion-focusing electrode based on SU-8 polymer is developed in a nano-electrospray ionization (nano-ESI) system to improve the ion transmission efficiency from a spray emitter tip into the counter electrode at atmospheric pressure. The novel SU-8 ... Keywords: Ion-focusing electrode, MEMS, Nano-electrospray ionization (nano-ESI), Peel off, SU-8 polymer, UV photolithography

Helin Zou; Jin Li; Petr Jur?í?Ek; Guoqi Wang

2013-03-01T23:59:59.000Z

384

Synthesis and characterization of pristine Li2MnSiO4 and Li2MnSiO4/C cathode materials for lithium ion batteries  

Science Journals Connector (OSTI)

Pristine Li2MnSiO4 and Li2MnSiO4.../C were both prepared by the sol–gel method. Citric acid was used as the carbon source. Lithium acetate dihydrate, manganese acetate tetrahydrate, and citric acid were first dis...

Qianqian Zhang; Quanchao Zhuang; Shoudong Xu; Xiangyun Qiu; Yongli Cui; Yueli Shi…

2012-05-01T23:59:59.000Z

385

Design and simulation of lithium rechargeable batteries  

SciTech Connect (OSTI)

Lithium -based rechargeable batteries that utilize insertion electrodes are being considered for electric-vehicle applications because of their high energy density and inherent reversibility. General mathematical models are developed that apply to a wide range of lithium-based systems, including the recently commercialized lithium-ion cell. The modeling approach is macroscopic, using porous electrode theory to treat the composite insertion electrodes and concentrated solution theory to describe the transport processes in the solution phase. The insertion process itself is treated with a charge-transfer process at the surface obeying Butler-Volmer kinetics, followed by diffusion of the lithium ion into the host structure. These models are used to explore the phenomena that occur inside of lithium cells under conditions of discharge, charge, and during periods of relaxation. Also, in order to understand the phenomena that limit the high-rate discharge of these systems, we focus on the modeling of a particular system with well-characterized material properties and system parameters. The system chosen is a lithium-ion cell produced by Bellcore in Red Bank, NJ, consisting of a lithium-carbon negative electrode, a plasticized polymer electrolyte, and a lithium-manganese-oxide spinel positive electrode. This battery is being marketed for consumer electronic applications. The system is characterized experimentally in terms of its transport and thermodynamic properties, followed by detailed comparisons of simulation results with experimental discharge curves. Next, the optimization of this system for particular applications is explored based on Ragone plots of the specific energy versus average specific power provided by various designs.

Doyle, C.M.

1995-08-01T23:59:59.000Z

386

Automotive Li-ion Battery Cooling Requirements | Department of...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Automotive Li-ion Battery Cooling Requirements Presents thermal management of lithium-ion battery packs for electric vehicles cunningham.pdf More Documents & Publications...

387

Reducing Foreign Lithium Dependence through Co-Production of Lithium from Geothermal Brine  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Foreign Lithium Dependence through Co-Production of Lithium from Foreign Lithium Dependence through Co-Production of Lithium from Geothermal Brine Kerry Klein 1 , Linda Gaines 2 1 New West Technologies LLC, Washington, DC, USA 2 Center for Transportation Research, Argonne National Laboratory, Argonne, IL, USA KEYWORDS Mineral extraction, zinc, silica, strategic metals, Imperial Valley, lithium ion batteries, electric- drive vehicles, battery recycling ABSTRACT Following a 2009 investment of $32.9 billion in renewable energy and energy efficiency research through the American Recovery and Reinvestment Act, President Obama in his January 2011 State of the Union address promised deployment of one million electric vehicles by 2015 and 80% clean energy by 2035. The United States seems poised to usher in its bright energy future,

388

Lithium Iron Phosphate Composites for Lithium Batteries | Argonne...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Lithium Iron Phosphate Composites for Lithium Batteries Technology available for licensing: Inexpensive, electrochemically active phosphate compounds with high functionality for...

389

JOURNAL DE PHYSIQUE Colloque C 4, supplment au no 8-9, Tome 28, Aot-Septembre 1967, page'c 3-34 LE CENTRE INTERSTITIEL LITHIUM  

E-Print Network [OSTI]

-34 LE CENTRE INTERSTITIEL LITHIUM DANS LE FLUORURE DE LITHIUM IRRADI� par Y. FARGE(l) Laboratoire de A apparaît dans des cristaux de fluorurede lithium fortement irradiés aux électrons ou aux neutrons'irradiation;ce centre, effet primaire de l'irradiation, serait l'interstitiel lithium qui formerait un ion moléculaire

Paris-Sud XI, Université de

390

California Lithium Battery, Inc. | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

California California Lithium Battery, Inc. America's Next Top Energy Innovator Challenge 626 likes California Lithium Battery, Inc. Argonne National Laboratory California Lithium Battery ("CALBattery") is a start-up California company established in 2011 to develop and manufacture a breakthrough high energy density and long cycle life lithium battery for utility energy storage, transportation, and defense industries. The company is a joint venture between California-based Ionex Energy Storage Systems and CALiB Power. US production of this advanced Very Large Format (400Ah+) si-graphene LI-ion battery is scheduled to start in California in 2014. Plans are to produce the initial batteries for CALBattery JV partner Ionex Energy Storage Systems for use in 1-100MW grid scale energy storage

391

Layered electrodes for lithium cells and batteries  

DOE Patents [OSTI]

Lithium metal oxide compounds of nominal formula Li.sub.2MO.sub.2, in which M represents two or more positively charged metal ions, selected predominantly and preferably from the first row of transition metals are disclosed herein. The Li.sub.2MO.sub.2 compounds have a layered-type structure, which can be used as positive electrodes for lithium electrochemical cells, or as a precursor for the in-situ electrochemical fabrication of LiMO.sub.2 electrodes. The Li.sub.2MO.sub.2 compounds of the invention may have additional functions in lithium cells, for example, as end-of-discharge indicators, or as negative electrodes for lithium cells.

Johnson, Christopher S. (Naperville, IL); Thackeray, Michael M. (Naperville, IL); Vaughey, John T. (Elmhurst, IL); Kahaian, Arthur J. (Chicago, IL); Kim, Jeom-Soo (Naperville, IL)

2008-04-15T23:59:59.000Z

392

California Lithium Battery, Inc. | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

California California Lithium Battery, Inc. America's Next Top Energy Innovator Challenge 626 likes California Lithium Battery, Inc. Argonne National Laboratory California Lithium Battery ("CALBattery") is a start-up California company established in 2011 to develop and manufacture a breakthrough high energy density and long cycle life lithium battery for utility energy storage, transportation, and defense industries. The company is a joint venture between California-based Ionex Energy Storage Systems and CALiB Power. US production of this advanced Very Large Format (400Ah+) si-graphene LI-ion battery is scheduled to start in California in 2014. Plans are to produce the initial batteries for CALBattery JV partner Ionex Energy Storage Systems for use in 1-100MW grid scale energy storage

393

California Lithium Battery, Inc. | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

California California Lithium Battery, Inc. America's Next Top Energy Innovator Challenge 626 likes California Lithium Battery, Inc. Argonne National Laboratory California Lithium Battery ("CALBattery") is a start-up California company established in 2011 to develop and manufacture a breakthrough high energy density and long cycle life lithium battery for utility energy storage, transportation, and defense industries. The company is a joint venture between California-based Ionex Energy Storage Systems and CALiB Power. US production of this advanced Very Large Format (400Ah+) si-graphene LI-ion battery is scheduled to start in California in 2014. Plans are to produce the initial batteries for CALBattery JV partner Ionex Energy Storage Systems for use in 1-100MW grid scale energy storage

394

Lithium Insertion into Anatase Nanotubes  

Science Journals Connector (OSTI)

Lithium Insertion into Anatase Nanotubes ... Improving the Performance of Titania Nanotube Battery Materials by Surface Modification with Lithium Phosphate ...

V. Gentili; S. Brutti; L.J. Hardwick; A.R. Armstrong; S. Panero; P.G. Bruce

2012-11-01T23:59:59.000Z

395

Synthesis and Characterization of Lithium Ferrite LiFe 5 O 8 Powder by Sol Gel Method  

Science Journals Connector (OSTI)

Lithium ferrite LiFe 5 O 8 powder has been prepared by sol gel method. Lithium acetate and iron nitrate are mixed together in the ethanol solution. The mixture is then slow heated to obtain the precursor. The precursor materials are sent for characterization using Thermal Gravimetric Analyzer (TGA) X?Ray Diffraction (XRD) and Scanning Electron Microscope (SEM). Then the high energy ball milling method was applied to obtain the nano sized lithium ferrite.

N. S. A. Puad; A. F. M. Fadzil; R. Yusof; N. Kamarulzaman

2010-01-01T23:59:59.000Z

396

Stability and Rate Capability of Al Substituted Lithium-Rich High-Manganese Content Oxide Materials for Li-Ion Batteries  

SciTech Connect (OSTI)

The structures, electrochemical properties and thermal stability of Al-substituted lithium-excess oxides, Li{sub 1.2}Ni{sub 0.16} Mn{sub 0.56}Co{sub 0.08-y}Al{sub y}O{sub 2} (y = 0, 0.024, 0.048, 0.08), are reported, and compared to the stoichiometric compounds, LiNi{sub z}Mn{sub z}Co{sub 1-2z}O{sub 2}. A solid solution was found up to at least y = 0.06. Aluminum substitution improves the poor thermal stability while preserving the high energy density of lithium-excess oxides. However, these high manganese compositions are inferior to the lithium stoichiometric materials, LiNi{sub z}Mn{sub z}Co{sub 1-2z}O{sub 2} (z = 0.333, 0.4), in terms of both power and thermal stability.

Li, Zheng; Chernova, Natasha A.; Feng, Jijun; Upreti, Shailesh; Omenya, Fredrick; Whittingham, M. Stanley (SUNY-Binghamton)

2012-03-15T23:59:59.000Z

397

Manufacturability Study and Scale-Up for Large Format Lithium...  

Broader source: Energy.gov (indexed) [DOE]

contributions out of over 40 in FY1314 * Selected publications 1. J. Li, B.L. Armstrong, J. Kiggans, C. Daniel, and D.L. Wood, "Lithium Ion Cell Performance Enhancement...

398

Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications  

E-Print Network [OSTI]

Battery safety has been a very important research area over the past decade. Commercially available lithium ion batteries employ low flash point (<80 °C), flammable, and volatile organic electrolytes. These organic based ...

Hu, Qichao

399

Molten salt lithium cells  

DOE Patents [OSTI]

Lithium-based cells are promising for applications such as electric vehicles and load-leveling for power plants since lithium is very electropositive and light weight. One type of lithium-based cell utilizes a molten salt electrolyte and is operated in the temperature range of about 400 to 500/sup 0/C. Such high temperature operation accelerates corrosion problems and a substantial amount of energy is lost through heat transfer. The present invention provides an electrochemical cell which may be operated at temperatures between about 100 to 170/sup 0/C. The cell is comprised of an electrolyte, which preferably includes lithium nitrate, and a lithium or lithium alloy electrode.

Raistrick, I.D.; Poris, J.; Huggins, R.A.

1980-07-18T23:59:59.000Z

400

Molten salt lithium cells  

DOE Patents [OSTI]

Lithium-based cells are promising for applications such as electric vehicles and load-leveling for power plants since lithium is very electropositive and light weight. One type of lithium-based cell utilizes a molten salt electrolyte and is operated in the temperature range of about 400.degree.-500.degree. C. Such high temperature operation accelerates corrosion problems and a substantial amount of energy is lost through heat transfer. The present invention provides an electrochemical cell (10) which may be operated at temperatures between about 100.degree.-170.degree. C. Cell (10) comprises an electrolyte (16), which preferably includes lithium nitrate, and a lithium or lithium alloy electrode (12).

Raistrick, Ian D. (Menlo Park, CA); Poris, Jaime (Portola Valley, CA); Huggins, Robert A. (Stanford, CA)

1982-02-09T23:59:59.000Z

Note: This page contains sample records for the topic "lithium ion nano" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

NanoeXa | Open Energy Information  

Open Energy Info (EERE)

NanoeXa NanoeXa Jump to: navigation, search Name NanoeXa Place Burlingame, California Zip 94010 Sector Vehicles Product Nanoexa offers safe, long lasting, and powerful lithium batteries for portable devices, Hybrid Electric Vehicles (HEVs) and Electric Vehicles (EVs). Coordinates 38.753055°, -95.834619° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":38.753055,"lon":-95.834619,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

402

Two Studies Reveal Details of Lithium-Battery Function  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Two Studies Reveal Details of Lithium-Battery Function Print Two Studies Reveal Details of Lithium-Battery Function Print Our way of life is deeply intertwined with battery technologies that have enabled a mobile revolution powering cell phones, laptops, medical devices, and cars. As conventional lithium-ion batteries approach their theoretical energy-storage limits, new technologies are emerging to address the long-term energy-storage improvements needed for mobile systems, electric vehicles in particular. Battery performance depends on the dynamics of evolving electronic and chemical states that, despite advances in material synthesis and structural probes, remain elusive and largely unexplored. At Beamlines 8.0.1 and 9.3.2, researchers studied lithium-ion and lithium-air batteries, respectively, using soft x-ray spectroscopy techniques. The detailed information they obtained about the evolution of electronic and chemical states will be indispensable for understanding and optimizing better battery materials.

403

Two Studies Reveal Details of Lithium-Battery Function  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Two Studies Reveal Details of Lithium-Battery Function Print Two Studies Reveal Details of Lithium-Battery Function Print Our way of life is deeply intertwined with battery technologies that have enabled a mobile revolution powering cell phones, laptops, medical devices, and cars. As conventional lithium-ion batteries approach their theoretical energy-storage limits, new technologies are emerging to address the long-term energy-storage improvements needed for mobile systems, electric vehicles in particular. Battery performance depends on the dynamics of evolving electronic and chemical states that, despite advances in material synthesis and structural probes, remain elusive and largely unexplored. At Beamlines 8.0.1 and 9.3.2, researchers studied lithium-ion and lithium-air batteries, respectively, using soft x-ray spectroscopy techniques. The detailed information they obtained about the evolution of electronic and chemical states will be indispensable for understanding and optimizing better battery materials.

404

Lithium Supply Grows  

Science Journals Connector (OSTI)

Military-requirements are of course classified, but there is general speculation that lithium is required for the thermonuclear reactions. ...

1955-11-21T23:59:59.000Z

405

nanoDESI | EMSL  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

nanoDESI nanoDESI Nano-DESIHRMS analytical platform allows in-depth molecular characterization of very small samples of organic materials (down to 10 ng) and volumes while...

406

nanoDESI | EMSL  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Instruments nanoDESI nanoDESI Nano-DESIHRMS analytical platform allows in-depth molecular characterization of very small samples of organic materials (down to 10 ng) and...

407

The electrochemical lithium reactions of monoclinic ZnP2 material{{ Haesuk Hwang,a  

E-Print Network [OSTI]

The electrochemical lithium reactions of monoclinic ZnP2 material{{ Haesuk Hwang,a Min Gyu Kim was developed, and out to 545 mAh g21 , only topotactic lithium ion intercalation into the molecule pores was observed. The excess Li ion uptake beyond simple Li intercalation (.545 mAh g21 ) into molecular pores can

Cho, Jaephil

408

Ultrathin Two-Dimensional Atomic Crystals as Stable Interfacial Layer for Improvement of Lithium Metal Anode  

E-Print Network [OSTI]

nitride, graphene Lithium ion batteries have been a great success as the power source for portable boron nitride (h-BN) and graphene directly on Cu metal current collectors. Lithium ions were able battery chemistry such as Si anodes,3,4 Li-S, and Li- air.5 Li metal anode has the highest specific

Cui, Yi

409

Nanocarbon Networks for Advanced Rechargeable Lithium Batteries  

Science Journals Connector (OSTI)

His research focuses on energy storage and conversion with batteries, fuel cells, and solar cells. ... As an important type of secondary battery, lithium-ion batteries (LIBs) have quickly dominated the market for consumer electronics and become one of key technologies in the battery industry after their first release by Sony Company in the early 1990s. ...

Sen Xin; Yu-Guo Guo; Li-Jun Wan

2012-09-06T23:59:59.000Z

410

Manufacturing of Protected Lithium Electrodes for Advanced Batteries  

Broader source: Energy.gov [DOE]

Manufacturing of Protected Lithium Electrodes for Advanced Lithium-Air, Lithium-Water, and Lithium-Sulfur Batteries

411

On the Accuracy and Simplifications of Battery Models using In Situ Measurements of Lithium Concentration in Operational Cells  

E-Print Network [OSTI]

. INTRODUCTION Accurate estimates of Lithium Ion Battery State of Charge (SOC) are critical for constraining and solid phase lithium distributions across the electrode may better utilize the battery's stored energyOn the Accuracy and Simplifications of Battery Models using In Situ Measurements of Lithium

Stefanopoulou, Anna

412

First-principles study of graphene-lithium structures for battery applications  

Science Journals Connector (OSTI)

In order to identify the best and most promising graphene-lithium structures for battery applications we performed a systematic study of different multilayer graphene-lithium structures using first-principles density-functional theory. The most promising structure identified is a few layer compound which contains a single graphene layer and four lithium layers. In this structure lithium density is six times higher than that of intercalated graphite and high lithium density observed in recent experiments can be due to this structure. In addition we show that electron density distribution around the positive Li ions is very important to design new advanced materials for battery applications.

Alper Buldum; Gulcin Tetiker

2013-01-01T23:59:59.000Z

413

Argonne, Western Lithium to develop lithium carbonate for multiple...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Laboratory as a step toward the commercialization of lithium carbonate from the Company's Kings Valley Lithium Project located in Humboldt County, Nevada, USA. Under the agreement,...

414

Published: June 24, 2011 r 2011 American Chemical Society 2644 dx.doi.org/10.1021/nl200658a |Nano Lett. 2011, 11, 26442647  

E-Print Network [OSTI]

Lett. 2011, 11, 2644­2647 LETTER pubs.acs.org/NanoLett Graphene-Wrapped Sulfur Particles as a Rechargeable Lithium�Sulfur Battery Cathode Material with High Capacity and Cycling Stability Hailiang Wang energy density, rechargeable lithium batteries have become the domi- nant power source for portable

Cui, Yi

415

Evaporated Lithium Surface Coatings in NSTX  

SciTech Connect (OSTI)

Two lithium evaporators were used to evaporate more than 100 g of lithium on to the NSTX lower divertor region. Prior to each discharge, the evaporators were withdrawn behind shutters, where they also remained during the subsequent HeGDC applied for periods up to 9.5 min. After the HeGDC, the shutters were opened and the LITERs were reinserted to deposit lithium on the lower divertor target for 10 min, at rates of 10-70 mg/min, prior to the next discharge. The major improvements in plasma performance from these lithium depositions include: (1) plasma density reduction as a result of lithium deposition; (2) suppression of ELMs; (3) improvement of energy confinement in a low-triangularity shape; (4) improvement in plasma performance for standard, high-triangularity discharges: (5) reduction of the required HeGDC time between discharges; (6) increased pedestal electron and ion temperature; (7) reduced SOL plasma density; and (8) reduced edge neutral density. (C) 2009 Elsevier B.V. All rights reserved

Kugel, H. W. [Princeton Plasma Physics Laboratory (PPPL); Mansfield, D. [Princeton Plasma Physics Laboratory (PPPL); Maingi, Rajesh [ORNL; Bell, M. G. [Princeton Plasma Physics Laboratory (PPPL); Bell, R. E. [Princeton Plasma Physics Laboratory (PPPL); Allain, J. P. [Purdue University; Gates, D. [Princeton Plasma Physics Laboratory (PPPL); Gerhardt, S. P. [Princeton Plasma Physics Laboratory (PPPL); Kaita, R. [Princeton Plasma Physics Laboratory (PPPL); Kallman, J. [Princeton Plasma Physics Laboratory (PPPL); Kaye, S. [Princeton Plasma Physics Laboratory (PPPL); LeBlanc, B. P. [Princeton Plasma Physics Laboratory (PPPL); Majeski, R. [Princeton Plasma Physics Laboratory (PPPL); Menard, J. [Princeton Plasma Physics Laboratory (PPPL); Mueller, D. [Princeton Plasma Physics Laboratory (PPPL); Ono, M. [Princeton Plasma Physics Laboratory (PPPL); Paul, S. [Princeton Plasma Physics Laboratory (PPPL); Raman, R. [University of Washington, Seattle; Roquemore, A. L. [Princeton Plasma Physics Laboratory (PPPL); Ross, P. W. [Princeton Plasma Physics Laboratory (PPPL); Sabbagh, S. A. [Columbia University; Schneider, H. [Princeton Plasma Physics Laboratory (PPPL); Skinner, C. H. [Princeton Plasma Physics Laboratory (PPPL); Soukhanovskii, V. [Lawrence Livermore National Laboratory (LLNL); Stevenson, T. [Princeton Plasma Physics Laboratory (PPPL); Timberlake, J. [Princeton Plasma Physics Laboratory (PPPL); Wampler, W. R. [Sandia National Laboratories (SNL); Wilgen, John B [ORNL; Zakharov, L. E. [Princeton Plasma Physics Laboratory (PPPL)

2009-01-01T23:59:59.000Z

416

Evaporated Lithium Surface Coatings in NSTX  

SciTech Connect (OSTI)

Two lithium evaporators were used to evaporate more than 100 g of lithium on to the NSTX lower divertor region. Prior to each discharge, the evaporators were withdrawn behind shutters, where they also remained during the subsequent HeGDC applied for periods up to 9.5 min. After the HeGDC, the shutters were opened and the LITERs were reinserted to deposit lithium on the lower divertor target for 10 min, at rates of 10-70 mg/min, prior to the next discharge. The major improvements in plasma performance from these lithium depositions include: 1) plasma density reduction as a result of lithium deposition; 2) suppression of ELMs; 3) improvement of energy confinement in a low-triangularity shape; 4) improvement in plasma performance for standard, high-triangularity discharges; 5) reduction of the required HeGDC time between discharges; 6) increased pedestal electron and ion temperature; 7) reduced SOL plasma density; and 8) reduced edge neutral density.

Kugel, H. W.; Mansfield, D.; Maingi, R.; Bel, M. G.; Bell, R. E.; Allain, J. P.; Gates, D.; Gerhardt, S.; Kaita, R.; Kallman, J.; Kaye, S.; LeBlanc, B.; Majeski, R.; Menard, J.; Mueller, D.; Ono, M.

2009-04-09T23:59:59.000Z

417

Evaporated lithium surface coatings in NSTX.  

SciTech Connect (OSTI)

Two lithium evaporators were used to evaporate more than 100 g of lithium on to the NSTX lower divertor region. Prior to each discharge, the evaporators were withdrawn behind shutters, where they also remained during the subsequent HeGDC applied for periods up to 9.5 min. After the HeGDC, the shutters were opened and the LITERs were reinserted to deposit lithium on the lower divertor target for 10 min, at rates of 10-70 mg/min, prior to the next discharge. The major improvements in plasma performance from these lithium depositions include: (1) plasma density reduction as a result of lithium deposition; (2) suppression of ELMs; (3) improvement of energy confinement in a low-triangularity shape; (4) improvement in plasma performance for standard, high-triangularity discharges; (5) reduction of the required HeGDC time between discharges; (6) increased pedestal electron and ion temperature; (7) reduced SOL plasma density; and (8) reduced edge neutral density.

Zakharov, L. (Princeton Plasma Physics Laboratory, Princeton, NJ); Gates, D. (Princeton Plasma Physics Laboratory, Princeton, NJ); Menard, J. (Princeton Plasma Physics Laboratory, Princeton, NJ); Maingi, R. (Oak Ridge National Laboratory, Oak Ridge, TN); Schneider, H. (Princeton Plasma Physics Laboratory, Princeton, NJ); Mueller, D. (Princeton Plasma Physics Laboratory, Princeton, NJ); Wampler, William R.; Roquemore, A. L. (Princeton Plasma Physics Laboratory, Princeton, NJ); Kallman, Jeffrey K. (Princeton Plasma Physics Laboratory, Princeton, NJ); Sabbagh, S. (Columbia University, New York, NY); LeBlanc, B. (Princeton Plasma Physics Laboratory, Princeton, NJ); Raman, R. (University of Washington, Seattle, WA); Ono, M. (Princeton Plasma Physics Laboratory, Princeton, NJ); Wilgren, J. (Oak Ridge National Laboratory, Oak Ridge, TN); Allain, J.P. (Purdue University, West Lafayette, IN); Timberlake, J. (Princeton Plasma Physics Laboratory, Princeton, NJ); Stevenson, T. (Princeton Plasma Physics Laboratory, Princeton, NJ); Ross, P. W. (Princeton Plasma Physics Laboratory, Princeton, NJ); Majeski, R. (Princeton Plasma Physics Laboratory, Princeton, NJ); Kugel, Henry W. (Princeton Plasma Physics Laboratory, Princeton, NJ); Skinner, C. H. (Princeton Plasma Physics Laboratory, Princeton, NJ); Gerhardt, S. (Princeton Plasma Physics Laboratory, Princeton, NJ); Paul, S. (Princeton Plasma Physics Laboratory, Princeton, NJ); Bell, R. (Princeton Plasma Physics Laboratory, Princeton, NJ); Kaye, S. M. (Princeton Plasma Physics Laboratory, Princeton, NJ); Kaita, R. (Princeton Plasma Physics Laboratory, Princeton, NJ); Soukhanovskii, V. (Lawrence Livermore National Laboratory, Livermore, CA); Bell, Michael G. (Princeton Plasma Physics Laboratory, Princeton, NJ); Mansfield, D. (Princeton Plasma Physics Laboratory, Princeton, NJ)

2008-08-01T23:59:59.000Z

418

Effects of fluorine substitution on the electrochemical performance of layered Li-excess nickel manganese oxides cathode materials for lithium-ion batteries  

Science Journals Connector (OSTI)

Abstract Li[Li1/6Ni1/4Mn7/12]O2?xFx (x = 0, 0.025, 0.05, 0.075, 0.1) as the cathode materials for rechargeable lithium batteries have been synthesized via the co-precipitation method followed by a high-temperature solid-state reaction. Field emission scanning electron microscopy images exhibit that fluorine substitution catalyzes the growth of the primary particles. Although the initial discharge capacity decreases as the fluorine content increasing, the fluorine substituted materials present significant improvement in the cycling performance. Among the synthesized materials, Li[Li1/6Ni1/4Mn7/12]O1.95F0.05 exhibits excellent high temperature (50 °C) cycling performance with a capacity retention of 93.7% after 30 cycles while the bare Li[Li1/6Ni1/4Mn7/12]O2 cathode exhibited only 73.7%.

Hongxiao Li; Li-Zhen Fan

2013-01-01T23:59:59.000Z

419

Effect of pre-treatment of the substrate surface by energetic C+ ion bombardment on structure and nano-tribological characteristics of ultra-thin tetrahedral amorphous carbon (ta-C) protective coatings  

Science Journals Connector (OSTI)

Depositing an ultra-thin tetrahedral amorphous carbon (ta-C) protective coating on the surface of the recording heads in magnetic tape drives can improve the tribological problems at the head/tape interface. In this work the effect of pre-treatment of the surface of AlTiC substrate (main bearing surface of head in contact with tape) by C+ ions of moderate energy (smaller than 400?eV) on the structural and tribo-mechanical behaviours of the coated surfaces is studied. Sample preparation consisted of two separate stages of surface pre-treatment and deposition of the protective film, and was done by means of filtered cathodic vacuum arc. Structure of the ta-C film and its interface with the substrate were studied by transmission electron microscopy and time-of-flight secondary ion mass spectrometry depth profiling. The results revealed the formation of a broader, dense atomically mixed layer at the ta-C film–substrate interface of the pre-treated samples comparing with that of the samples without pre-treatment. Chemical characterization of thin diamond-like carbon coatings was conducted by means of x-ray photoelectron spectroscopy and the surface pre-treatment was found to have a remarkable effect on increasing the sp3 hybridization fraction in the ta-C overcoat. Nano-tribological properties of the treated surfaces were examined using ball-on-flat wear test at very low load (20?mN). There was a good correlation between the surface and structure characteristics of the film, and the tribological results and the pre-treated surfaces presented a very low coefficient of friction and higher wear life. The experimental results demonstrate the effectiveness of bombardment of the surface with C+ ions of moderate ion energy to improve the structural and tribo-mechanical properties of the protective ta-C films on the magnetic head substrate material.

E Rismani; S K Sinha; S Tripathy; H Yang; C S Bhatia

2011-01-01T23:59:59.000Z

420

Preparation of novel carbon microfiber/carbon nanofiber-dispersed polyvinyl alcohol-based nanocomposite material for lithium-ion electrolyte battery separator  

E-Print Network [OSTI]

December 2012 Keywords: Li-ion battery separator Polyvinyl alcohol Carbon micro-nanofibers Suspension acetate to produce polyvinyl alcohol gel, ball-milling of the surfactant dispersed carbon micro of the polyvinyl alcohol gel formation, and the mixing of hydro- phobic reagents along with polyethylene glycol

Singh, Jayant K.

Note: This page contains sample records for the topic "lithium ion nano" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

The impact of lithium wall coatings on NSTX discharges and the engineering of the Lithium Tokamak eXperiment (LTX)  

SciTech Connect (OSTI)

Recent experiments on the National Spherical Torus eXperiment (NSTX) have shown the benefits of solid lithium coatings on carbon PFC's to diverted plasma performance, in both L- and H-mode confinement regimes. Better particle control, with decreased inductive flux consumption, and increased electron temperature, ion temperature, energy confinement time, and DD neutron rate were observed. Successive increases in lithium coverage resulted in the complete suppression of ELM activity in H-mode discharges. A liquid lithium divertor (LLD), which will employ the porous molybdenum surface developed for the LTX shell, is being installed on NSTX for the 2010 run period, and will provide comparisons between liquid walls in the Lithium Tokamak eXperiment (LTX) and liquid divertor targets in NSTX. LTX, which recently began operations at the Princeton Plasma Physics Laboratory, is the world's first confinement experiment with full liquid metal plasma-facing components (PFCs). All materials and construction techniques in LTX are compatible with liquid lithium. LTX employs an inner, heated, stainless steel-faced liner or shell, which will be lithium-coated. In order to ensure that lithium adheres to the shell, it is designed to operate at up to 500-600 degrees C to promote wetting of the stainless by the lithium, providing the first hot wall in a tokamak to Operate at reactor-relevant temperatures. The engineering of LTX will be discussed. (c) 2010 Elsevier B.V. All rights reserved.

Majeski, R. [Princeton Plasma Physics Laboratory (PPPL); Kugel, H. [Princeton Plasma Physics Laboratory (PPPL); Kaita, R. [Princeton Plasma Physics Laboratory (PPPL); Avasarala, S. [Princeton Plasma Physics Laboratory (PPPL); Bell, M. G. [Princeton Plasma Physics Laboratory (PPPL); Bell, R. E. [Princeton Plasma Physics Laboratory (PPPL); Berzak, L. [Princeton Plasma Physics Laboratory (PPPL); Beiersdorfer, P. [Lawrence Livermore National Laboratory (LLNL); Gerhardt, S. P. [Princeton Plasma Physics Laboratory (PPPL); Gransted, E. [Princeton Plasma Physics Laboratory (PPPL); Gray, T. [Princeton Plasma Physics Laboratory (PPPL); Jacobson, C. [Princeton Plasma Physics Laboratory (PPPL); Kallman, J. [Princeton Plasma Physics Laboratory (PPPL); Kaye, S. [Princeton Plasma Physics Laboratory (PPPL); Kozub, T. [Princeton Plasma Physics Laboratory (PPPL); LeBlanc, B. P. [Princeton Plasma Physics Laboratory (PPPL); Lepson, J. [Lawrence Livermore National Laboratory (LLNL); Lundberg, D. P. [Princeton Plasma Physics Laboratory (PPPL); Maingi, Rajesh [ORNL; Mansfield, D. [Princeton Plasma Physics Laboratory (PPPL); Paul, S. F. [Princeton Plasma Physics Laboratory (PPPL); Pereverzev, G. V. [Max-Planck-Institut fur Plasmaphysik, EURATOM Association, Garching, Germany; Schneider, H. [Princeton Plasma Physics Laboratory (PPPL); Soukhanovskii, V. [Lawrence Livermore National Laboratory (LLNL); Strickler, T. [Princeton Plasma Physics Laboratory (PPPL); Stotler, D. [Princeton Plasma Physics Laboratory (PPPL); Timberlake, J. [Princeton Plasma Physics Laboratory (PPPL); Zakharov, L. E. [Princeton Plasma Physics Laboratory (PPPL)

2010-01-01T23:59:59.000Z

422

Thin-film Rechargeable Lithium Batteries  

DOE R&D Accomplishments [OSTI]

Rechargeable thin films batteries with lithium metal anodes, an amorphous inorganic electrolyte, and cathodes of lithium intercalation compounds have been fabricated and characterized. The cathodes include TiS{sub 2}, the {omega} phase of V{sub 2}O{sub 5}, and the cubic spinel Li{sub x}Mn{sub 2}O{sub 4} with open circuit voltages at full charge of about 2.5 V, 3.7 V, and 4.2 V, respectively. The development of these robust cells, which can be cycled thousands of times, was possible because of the stability of the amorphous lithium electrolyte, lithium phosphorus oxynitride. This material has a typical composition of Li{sub 2.9}PO{sub 3.3}N{sub 0.46} and a conductivity at 25 C of 2 {mu}S/cm. Thin film cells have been cycled at 100% depth of discharge using current densities of 2 to 100 {mu}A/cm{sup 2}. The polarization resistance of the cells is due to the slow insertion rate of Li{sup +} ions into the cathode. Chemical diffusion coefficients for Li{sup +} ions in the three types of cathodes have been estimated from the analysis of ac impedance measurements.

Bates, J. B.; Gruzalski, G. R.; Dudney, N. J.; Luck, C. F.; Yu, X.

1993-11-00T23:59:59.000Z

423

NSTX plasma response to lithium coated divertor  

SciTech Connect (OSTI)

NSTX experiments have explored lithium evaporated on a graphite divertor and other plasma-facing components in both L- and H- mode confinement regimes heated by high-power neutral beams. Improvements in plasma performance have followed these lithium depositions, including a reduction and eventual elimination of the HeGDC time between discharges, reduced edge neutral density, reduced plasma density, particularly in the edge and the SOL, increased pedestal electron and ion temperature, improved energy confinement and the suppression of ELMs in the H-mode. However, with improvements in confinement and suppression of ELMs, there was a significant secular increase in the effective ion charge Z(eff) and the radiated power in H-mode plasmas as a result of increases in the carbon and medium-Z metallic impurities. Lithium itself remained at a very low level in the plasma core, < 0.1%. Initial results are reported from operation with a Liquid Lithium Divertor (LLD) recently installed. (C) 2010 Elsevier B.V. All rights reserved.

Kugel, H. W. [Princeton Plasma Physics Laboratory (PPPL); Bell, M. G. [Princeton Plasma Physics Laboratory (PPPL); Allain, J. P. [Purdue University; Bell, R. E. [Princeton Plasma Physics Laboratory (PPPL); Ding, S. [Academia Sinica, Institute of Plasma Physics, Hefei, China; Gerhardt, S. P. [Princeton Plasma Physics Laboratory (PPPL); Jaworski, M. A. [Princeton Plasma Physics Laboratory (PPPL); Kaita, R. [Princeton Plasma Physics Laboratory (PPPL); Kallman, J. [Princeton Plasma Physics Laboratory (PPPL); Kaye, S. M. [Princeton Plasma Physics Laboratory (PPPL); LeBlanc, B. P. [Princeton Plasma Physics Laboratory (PPPL); Maingi, Rajesh [ORNL; Majeski, R. [Princeton Plasma Physics Laboratory (PPPL); Maqueda, R. J. [Princeton Plasma Physics Laboratory (PPPL); Mansfield, D.K. [Princeton Plasma Physics Laboratory (PPPL); Mueller, D. [Princeton Plasma Physics Laboratory (PPPL); Nygren, R. E. [Sandia National Laboratories (SNL); Paul, S. F. [Princeton Plasma Physics Laboratory (PPPL); Raman, R [University of Washington, Seattle; Roquemore, A. L. [Princeton Plasma Physics Laboratory (PPPL); Sabbagh, S. A. [Columbia University; Schneider, H. [Princeton Plasma Physics Laboratory (PPPL); Skinner, C. H. [Princeton Plasma Physics Laboratory (PPPL); Soukhanovskii, V. A. [Lawrence Livermore National Laboratory (LLNL); Taylor, C. N. [Purdue University; Timberlake, J. [Princeton Plasma Physics Laboratory (PPPL); Wampler, W. R. [Sandia National Laboratories (SNL); Zakharov, L. E. [Princeton Plasma Physics Laboratory (PPPL); Zweben, S. J. [Princeton Plasma Physics Laboratory (PPPL)

2011-01-01T23:59:59.000Z

424

Published: October 10, 2011 r 2011 American Chemical Society 5071 dx.doi.org/10.1021/nl203332e |Nano Lett. 2011, 11, 50715078  

E-Print Network [OSTI]

with an ideal bimodal porous structure which is highly desirable for Li�O2 battery operation. Although graphene |Nano Lett. 2011, 11, 5071­5078 LETTER pubs.acs.org/NanoLett Hierarchically Porous Graphene as a Lithium�Air Battery Electrode Jie Xiao,*, Donghai Mei, Xiaolin Li, Wu Xu, Deyu Wang, Gordon L. Graff, Wendy D. Bennett

Aksay, Ilhan A.

425

Cathode material for lithium batteries  

DOE Patents [OSTI]

A method of manufacture an article of a cathode (positive electrode) material for lithium batteries. The cathode material is a lithium molybdenum composite transition metal oxide material and is prepared by mixing in a solid state an intermediate molybdenum composite transition metal oxide and a lithium source. The mixture is thermally treated to obtain the lithium molybdenum composite transition metal oxide cathode material.

Park, Sang-Ho; Amine, Khalil

2013-07-23T23:59:59.000Z

426

Electrophoretic NMR measurements of lithium transference numbers in polymer gel electrolytes  

SciTech Connect (OSTI)

Polymer gel electrolytes are of increasing interest for plastic lithium batteries largely because of their high room temperature conductivity. Several studies have probed their conductivity and electrochemical stability but very little work has been done related to lithium transference numbers. Lithium ion transference numbers, the net number of Faradays carried by lithium upon the passage of 1 Faraday of charge across a cell, are key figures of merit for any potential lithium battery electrolytes. The authors describe here their application of electrophoretic NMR (ENMR) to the determination of transference numbers of lithium ions in polymer gel electrolytes. Two types of polymer gel electrolytes were selected for this study: PAN/PC/EC/LiX and Kynar/PC/LiX. Results obtained for the two types of gels are compared and the effects of anion, polymer-ion interactions and ion-ion interactions on lithium transference numbers are discussed. Significant differences in the behavior of transference numbers with salt concentration are observed for the two types of gels. This may be due to the extent of interaction between the polymer and the ions. Implications for solid polymer electrolytes are discussed.

Dai, H.; Sanderson, S.; Davey, J.; Uribe, F.; Zawodzinski, T.A. Jr. [Los Alamos National Lab., NM (United States). Electronics Materials and Device Research Group

1997-05-01T23:59:59.000Z

427

Nuclear Spin Lattice Relaxation and Conductivity Studies of the Non-Arrhenius Conductivity Behavior in Lithium Fast Ion Conducting Sulfide Glasses  

SciTech Connect (OSTI)

As time progresses, the world is using up more of the planet's natural resources. Without technological advances, the day will eventually arrive when these natural resources will no longer be sufficient to supply all of the energy needs. As a result, society is seeing a push for the development of alternative fuel sources such as wind power, solar power, fuel cells, and etc. These pursuits are even occurring in the state of Iowa with increasing social pressure to incorporate larger percentages of ethanol in gasoline. Consumers are increasingly demanding that energy sources be more powerful, more durable, and, ultimately, more cost efficient. Fast Ionic Conducting (FIC) glasses are a material that offers great potential for the development of new batteries and/or fuel cells to help inspire the energy density of battery power supplies. This dissertation probes the mechanisms by which ions conduct in these glasses. A variety of different experimental techniques give a better understanding of the interesting materials science taking place within these systems. This dissertation discusses Nuclear Magnetic Resonance (NMR) techniques performed on FIC glasses over the past few years. These NMR results have been complimented with other measurement techniques, primarily impedance spectroscopy, to develop models that describe the mechanisms by which ionic conduction takes place and the dependence of the ion dynamics on the local structure of the glass. The aim of these measurements was to probe the cause of a non-Arrhenius behavior of the conductivity which has been seen at high temperatures in the silver thio-borosilicate glasses. One aspect that will be addressed is if this behavior is unique to silver containing fast ion conducting glasses. more specifically, this study will determine if a non-Arrhenius correlation time, {tau}, can be observed in the Nuclear Spin Lattice Relaxation (NSLR) measurements. If so, then can this behavior be modeled with a new single distribution of activation energies (DAE) to calculate the corresponding conductivity and relaxation rates as a function of temperature and frequency?

Benjamin Michael Meyer

2003-05-31T23:59:59.000Z

428

Role of intermediate phase for stable cycling of Na7V4(P2O7)4PO4 in sodium ion battery  

Science Journals Connector (OSTI)

...LiMn2O4/reduced graphene oxide hybrid for high rate lithium ion batteries . J Mater Chem 21...rate lithium-ion batteries . Electrochem Commun...2011 ) Reduced graphene oxide supported...Liu ZP ( 2011 ) Graphene modified LiFePO4...power lithium ion batteries . J Mater Chem 21...

Soo Yeon Lim; Heejin Kim; Jaehoon Chung; Ji Hoon Lee; Byung Gon Kim; Jeon-Jin Choi; Kyung Yoon Chung; Woosuk Cho; Seung-Joo Kim; William A. Goddard III; Yousung Jung; Jang Wook Choi

2014-01-01T23:59:59.000Z

429

Intrinsic Surface Stability in LiMn2-xNix04-s (x = 0.45, 0.5) High Voltage Spinel Materials for Lithium Ion Batteries  

SciTech Connect (OSTI)

This work reports the surface stability of the high vollage Li ion cathode LiMn2_,Ni,Ooh\\ (x = 0.5, 0.45) by comparing thin fi lm and powder composite electrodes after cycling using X-ray photoelectron spectroscopy. The thin film electrodes offer the abili ty to probe the surface of the material without the need of a conductive agent and polymer binder typically used in composite electrodes. The resulls suggest that neither oxidation of PP6 to POF3 nor the decomposition of ethylene carbonate or dimethylene carbonate occurs on the surface of the spinel material. These resulls confirm the enhanced cycling stability and rate capability associated with the high vollage spinel material and suggests that the SE!IIayer fonns due to the reaction of electrochemically inactive components in composite electrodes with the electrolyte.

Carroll, Kyler J [University of California, San Diego; Yang, Ming-Che [University of Florida, Gainesville; Veith, Gabriel M [ORNL; Dudney, Nancy J [ORNL; Meng, Ying Shirley [University of California, San Diego

2012-01-01T23:59:59.000Z

430

A theoretical study of the ion pair SN2 reaction between lithium isocyanates with methyl fluoride with inversion and retention mechanism  

Science Journals Connector (OSTI)

This paper is devoted to a detailed theoretical study of an ion pair SN2 reaction LiNCO+CH3F in the gas phase and in solution at the level of MP2(full)/6-31+G**//HF/6-31+G**. Two possible reaction mechanisms, inversion and retention, are discussed. There are eight possible reaction pathways. The inversion mechanism is more favorable no matter in the gas phase or in solution based on analyses of the transition structures. Methyl isocyanate should form preferentially in the gas phase and more stable methyl cyanate is the main product in solution. The retardation of the reaction in solvents was attributed to the difference in solvation in the separated reactants and in the transition state.

Hua-jie Zhu; Yi Ren; Jie Ren

2004-01-01T23:59:59.000Z

431

Electrocatalysts for Nonaqueous Lithium–Air Batteries:...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Electrocatalysts for Nonaqueous Lithium–Air Batteries: Status, Challenges, and Perspective. Electrocatalysts for Nonaqueous Lithium–Air Batteries: Status, Challenges,...

432

Lithium As Plasma Facing Component for Magnetic Fusion Research  

SciTech Connect (OSTI)

The use of lithium in magnetic fusion confinement experiments started in the 1990's in order to improve tokamak plasma performance as a low-recycling plasma-facing component (PFC). Lithium is the lightest alkali metal and it is highly chemically reactive with relevant ion species in fusion plasmas including hydrogen, deuterium, tritium, carbon, and oxygen. Because of the reactive properties, lithium can provide strong pumping for those ions. It was indeed a spectacular success in TFTR where a very small amount (~ 0.02 gram) of lithium coating of the PFCs resulted in the fusion power output to improve by nearly a factor of two. The plasma confinement also improved by a factor of two. This success was attributed to the reduced recycling of cold gas surrounding the fusion plasma due to highly reactive lithium on the wall. The plasma confinement and performance improvements have since been confirmed in a large number of fusion devices with various magnetic configurations including CDX-U/LTX (US), CPD (Japan), HT-7 (China), EAST (China), FTU (Italy), NSTX (US), T-10, T-11M (Russia), TJ-II (Spain), and RFX (Italy). Additionally, lithium was shown to broaden the plasma pressure profile in NSTX, which is advantageous in achieving high performance H-mode operation for tokamak reactors. It is also noted that even with significant applications (up to 1,000 grams in NSTX) of lithium on PFCs, very little contamination (< 0.1%) of lithium fraction in main fusion plasma core was observed even during high confinement modes. The lithium therefore appears to be a highly desirable material to be used as a plasma PFC material from the magnetic fusion plasma performance and operational point of view. An exciting development in recent years is the growing realization of lithium as a potential solution to solve the exceptionally challenging need to handle the fusion reactor divertor heat flux, which could reach 60 MW/m2 . By placing the liquid lithium (LL) surface in the path of the main divertor heat flux (divertor strike point), the lithium is evaporated from the surface. The evaporated lithium is quickly ionized by the plasma and the ionized lithium ions can provide a strongly radiative layer of plasma ("radiative mantle"), thus could significantly reduce the heat flux to the divertor strike point surfaces, thus protecting the divertor surface. The protective effects of LL have been observed in many experiments and test stands. As a possible reactor divertor candidate, a closed LL divertor system is described. Finally, it is noted that the lithium applications as a PFC can be quite flexible and broad. The lithium application should be quite compatible with various divertor configurations, and it can be also applied to protecting the presently envisioned tungsten based solid PFC surfaces such as the ones for ITER. Lithium based PFCs therefore have the exciting prospect of providing a cost effective flexible means to improve the fusion reactor performance, while providing a practical solution to the highly challenging divertor heat handling issue confronting the steadystate magnetic fusion reactors.

Masayuki Ono

2012-09-10T23:59:59.000Z

433

Rechargeable thin-film lithium batteries  

SciTech Connect (OSTI)

Rechargeable thin-film batteries consisting of lithium metal anodes, an amorphous inorganic electrolyte, and cathodes of lithium intercalation compounds have been fabricated and characterized. These include Li-TiS{sub 2}, Li-V{sub 2}O{sub 5}, and Li-Li{sub x}Mn{sub 2}O{sub 4} cells with open circuit voltages at full charge of about 2.5 V, 3.7 V, and 4.2 V, respectively. The realization of these robust cells, which can be cycled thousands of times, was possible because of the stability of the amorphous lithium electrolyte, lithium phosphorus oxynitride. This material has a typical composition of Li{sub 2.9}PO{sub 3.3}N{sub 0.46}and a conductivity at 25 C of 2 {mu}S/cm. The thin-film cells have been cycled at 100% depth of discharge using current densities of 5 to 100 {mu}A/cm{sup 2}. Over most of the charge-discharge range, the internal resistance appears to be dominated by the cathode, and the major source of the resistance is the diffusion of Li{sup +} ions from the electrolyte into the cathode. Chemical diffusion coefficients were determined from ac impedance measurements.

Bates, J.B.; Gruzalski, G.R.; Dudney, N.J.; Luck, C.F.; Yu, X.

1993-09-01T23:59:59.000Z

434

Nano Fab Lab, Stockholm Sweden The Albanova Nano Fabrication Facility  

E-Print Network [OSTI]

Nano Fab Lab, Stockholm Sweden The Albanova Nano Fabrication Facility Nano technology for basic research and small commercial enterprises Director: Prof. David Haviland #12;Nano Fab Lab, Stockholm Sweden Nano-Lab Philosophy · Nanometer scale patterning and metrology · Broad spectrum of user research

Haviland, David

435

Integrated Micro Nano Systems Integrated Micro Nano Systems  

E-Print Network [OSTI]

#12;Integrated Micro Nano Systems 2 #12;Integrated Micro Nano Systems 3 Val Jones (Ed.) Symposium on Integrated Micro Nano Systems: Convergence of bio and nanotechnologies, Enschede, The Netherlands, June 2006 Micro Nano Systems 4 #12;Integrated Micro Nano Systems 5 Preface In order to explore the convergence

Al Hanbali, Ahmad

436

Nano Research Facility Lab Safety Manual Nano Research Facility  

E-Print Network [OSTI]

1 Nano Research Facility Lab Safety Manual Nano Research Facility: Weining Wang Office: Brauer rules and procedures (a) Accidents and spills for chemicals Not containing Nano-Materials Spills of non for chemicals Containing Nano-Materials In a fume hood small spills of nano-materials in a liquid may

Subramanian, Venkat

437

Lithium-cation conductivity and crystal structure of lithium diphosphate  

SciTech Connect (OSTI)

The electrical conductivity of lithium diphosphate Li{sub 4}P{sub 2}O{sub 7} has been measured and jump-like increasing of ionic conductivity at 913 K has been found. The crystal structure of Li{sub 4}P{sub 2}O{sub 7} has been refined using high temperature neutron diffraction at 300–1050 K. At 913 K low temperature triclinic form of Li{sub 4}P{sub 2}O{sub 7} transforms into high temperature monoclinic one, space group P2{sub 1}/n, a=8.8261(4) Å, b=5.2028(4) Å, c=13.3119(2) Å, ?=104.372(6)°. The migration maps of Li{sup +} cations based on experimental data implemented into program package TOPOS have been explored. It was found that lithium cations in both low- and high temperature forms of Li{sub 4}P{sub 2}O{sub 7} migrate in three dimensions. Cross sections of the migrations channels extend as the temperature rises, but at the phase transition point have a sharp growth showing a strong “crystal structure – ion conductivity” correlation. -- Graphical abstract: Crystal structure of Li{sub 4}P{sub 2}O{sub 7} at 950 K. Red balls represent oxygen atoms; black lines show Li{sup +} ion migration channels in the layers perpendicular to [001] direction. Highlights: • Structure of Li{sub 4}P{sub 2}O{sub 7} has been refined using high temperature neutron diffraction. • At 913 K triclinic form of Li{sub 4}P{sub 2}O{sub 7} transforms into high temperature monoclinic one. • The migration maps of Li{sup +} implemented into program package TOPOS have been explored. • Cross sections of the migrations channels at the phase transition have a sharp growth.

Voronin, V.I., E-mail: voronin@imp.uran.ru [Institute of Metal Physics Urals Branch RAS, S.Kovalevskoy Street 18, 620041 Ekaterinburg (Russian Federation); Sherstobitova, E.A. [Institute of Metal Physics Urals Branch RAS, S.Kovalevskoy Street 18, 620041 Ekaterinburg (Russian Federation); Blatov, V.A., E-mail: blatov@samsu.ru [Samara Center for Theoretical Materials Science (SCTMS), Samara State University, Ac.Pavlov Street 1, 443011 Samara (Russian Federation); Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah 21589 (Saudi Arabia); Shekhtman, G.Sh., E-mail: shekhtman@ihte.uran.ru [Institute of High Temperature Electrochemistry Urals Branch RAS, Akademicheskaya 20, 620990 Ekaterinburg (Russian Federation)

2014-03-15T23:59:59.000Z

438

Lithium Diffusion in Li4Ti5O12 at High Temperatures. | EMSL  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

of lithium ions from the tetrahedral 8a to the octahedral 16c sites leading to a phase transition from a spinel to a defective NaCl-type structure. This defective structure...

439

Predissociation dynamics of lithium iodide  

E-Print Network [OSTI]

The predissociation dynamics of lithium iodide (LiI) in the first excited A-state is investigated for molecules in the gas phase and embedded in helium nanodroplets, using femtosecond pump-probe photoionization spectroscopy. In the gas phase, the transient Li+ and LiI+ ion signals feature damped oscillations due to the excitation and decay of a vibrational wave packet. Based on high-level ab initio calculations of the electronic structure of LiI and simulations of the wave packet dynamics, the exponential signal decay is found to result from predissociation predominantly at the lowest avoided X-A potential curve crossing, for which we infer a coupling constant V=650(20) reciprocal cm. The lack of a pump-probe delay dependence for the case of LiI embedded in helium nanodroplets indicates fast droplet-induced relaxation of the vibrational excitation.

Schmidt, H; Stienkemeier, F; Bogomolov, A S; Baklanov, A V; Reich, D M; Skomorowski, W; Koch, C P; Mudrich, M

2015-01-01T23:59:59.000Z

440

USC Nano Center Poster Session  

E-Print Network [OSTI]

USC Nano Center Poster Session 19 April 2002 Nano-scale VLSI Design: A Significant Paradigm Shift The recent progression of events in nano-technology, from nanotubes to nano- transistors, begs a basic will the changes in underlying device materials theory of nano-scale electronics affect ways in which we currently

Davis, James P.

Note: This page contains sample records for the topic "lithium ion nano" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

Nano-Macro Correlation of Nano-Silica Concrete  

Science Journals Connector (OSTI)

Concrete mixes using progressively finer size nano-silica particles (7–150nm) were prepared to study the effect of nano-size pozzolans (nano-silica). Conventional compression tests demonstrated progressively high...

Joan Schoepfer; Arup Maji

2013-01-01T23:59:59.000Z

442

LITHIUM LITERATURE REVIEW: LITHIUM'S PROPERTIES AND INTERACTIONS  

Office of Scientific and Technical Information (OSTI)

HEDL-TME 78-15 HEDL-TME 78-15 uc-20 LITHIUM LITERATURE REVIEW: LITHIUM'S PROPERTIES AND INTERACTIONS Hanf ord Engineering Development Laboratory -~ - - , . .. . D.W. Jeppson J.L. Ballif W.W. Yuan B.E. Chou - - - . - . - -- r - N O T l C E n ~ h u mpon w prepared as an account of work iponrored by the United States Government. Neither the Unitcd States nor the United Stater Department of Energy. nor any of their employees, nor any of then contractor^, subcontractors. or their employees, maker any warranty, cxprcu or Implied. or anumcs any legal liability or rcrponabllity for the accuracy. cornplctcncs or uvfulnes of any information. apparatus, product or p r o a s ditclorcd. or rcpments that its u s would not infringe pnvatcly owned nghts. April 1978 HANFORD ENGINEERING DEVELOPMENT LABORATORY

443

Lithium-Air Battery: High Performance Cathodes for Lithium-Air Batteries  

SciTech Connect (OSTI)

BEEST Project: Researchers at Missouri S&T are developing an affordable lithium-air (Li-Air) battery that could enable an EV to travel up to 350 miles on a single charge. Today’s EVs run on Li-Ion batteries, which are expensive and suffer from low energy density compared with gasoline. This new Li-Air battery could perform as well as gasoline and store 3 times more energy than current Li-Ion batteries. A Li-Air battery uses an air cathode to breathe oxygen into the battery from the surrounding air, like a human lung. The oxygen and lithium react in the battery to produce electricity. Current Li-Air batteries are limited by the rate at which they can draw oxygen from the air. The team is designing a battery using hierarchical electrode structures to enhance air breathing and effective catalysts to accelerate electricity production.

None

2010-08-01T23:59:59.000Z

444

nanoFOAM  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

nanoFOAM nanoFOAM nanoFOAM Los Alamos National Laboratory's (LANL) nanoFOAM technique produces self-supporting, nanoporous metal foams. July 30, 2013 nanoFOAM In the upper left frame, the slanted U-shape with the bright spot is a resistively heated wire igniting a pellet pressed from one of our high-nitrogen transition-metal complexes. (The spot is a reflection from the window of the experimental chamber.) As the pellet rapidly burns, its volume dramatically increases as nitrogen gas released by the combustion creates nanoscopic pores in coalescing metal particles that are also released. Available for thumbnail of Feynman Center (505) 665-9090 Email nanoFOAM Applications: Nanofoams can improve the efficiencies of: Catalytic production of ammonia, sulfuric acid, fuels, plastics,

445

Bio2Nano  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

correlated molecular networks based on a viral system and have begun to combine these networks with our micro- and nanofabricated environments. Moving forward, the Bio2Nano...

446

Develop high energy high power Li-ion battery cathode materials : a first principles computational study  

E-Print Network [OSTI]

Lithium Ion Batteries", Materials Science and Engineering R,Ion Batteries", as it appears in Materials Science and EngineeringIon Batteries", as it appears in Materials Science and Engineering

Xu, Bo; Xu, Bo

2012-01-01T23:59:59.000Z

447

Electrochemical shock : mechanical degradation of ion-intercalation materials  

E-Print Network [OSTI]

The ion-intercalation materials used in high-energy batteries such as lithium-ion undergo large composition changes-which correlate to high storage capacity-but which also induce structural changes and stresses that can ...

Woodford, William Henry, IV

2013-01-01T23:59:59.000Z

448

High Voltage Electrolytes for Li-ion Batteries | Department of...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

in Support of 5 V Li-ion Chemistries Vehicle Technologies Office Merit Review 2014: Fluorinated Electrolyte for 5-V Li-Ion Chemistry High Voltage Electrolyte for Lithium Batteries...

449

Phenomenological theory of a single domain wall in uniaxial trigonal ferroelectrics: Lithium niobate and lithium tantalate  

E-Print Network [OSTI]

Phenomenological theory of a single domain wall in uniaxial trigonal ferroelectrics: Lithium niobate and lithium tantalate David A. Scrymgeour and Venkatraman Gopalan Department of Materials Science, lithium niobate and lithium tantalate. The contributions to the domain- wall energy from polarization

Gopalan, Venkatraman

450

Excess lithium storage and charge compensation in nanoscale Li4+xTi5O12  

Science Journals Connector (OSTI)

Lithium titanate spinel (Li4Ti5O12; LTO) is a promising candidate for anodes in lithium-ion batteries due to its excellent cyclability and safety performance, and has been known as a 'zero-strain' material that allows reversible lithium insertion–deinsertion with little change in the lattice parameters. For a better understanding of lithium reaction mechanisms in this material, it has been of great interest to identify where lithium is inserted and how it migrates during charge and discharge, which is often difficult with x-ray and electron scattering techniques due to the low scattering power of lithium. In this study, we employed atomic-resolution annular bright-field imaging to directly image the lithium on interstitial sites in nanoscale LTO, and electron energy-loss spectroscopy to measure local lithium occupancy and electronic structure at different states of charge. During lithiation, charge compensation occurs primarily at O sites, rather than at Ti sites, and no significant change was found in the projected density of states (Ti 3d) until the voltage was lowered to ~50 mV or below. The Li K-edge spectra were simulated via ab initio calculations, providing a direct correlation between the near-edge fine structure and the local lithium coordination. During the initial states of discharge, lithium ions on 8a sites migrate to 16c sites (above 740 mV). Further lithiation causes the partial re-occupation of 8a sites, initially in the near-surface region at ~600 mV, and then in the bulk at lower voltages (~50 mV). We attribute the enhanced capacity in nanostructured LTO to extra storage of lithium in the near-surface region, primarily at {111} facets.

Feng Wang; Lijun Wu; Chao Ma; Dong Su; Yimei Zhu; Jason Graetz

2013-01-01T23:59:59.000Z

451

Princeton Plasma Physics Lab - Lithium  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

lithium Nearly everybody knows about lithium Nearly everybody knows about lithium - a light, silvery alkali metal - used in rechargeable batteries powering everything from laptops to hybrid cars. What may not be so well known is the fact that researchers hoping to harness the energy released in fusion reactions also have used lithium to coat the walls of donut-shaped tokamak reactors. Lithium, it turns out, may help the plasmas fueling fusion reactions to retain heat for longer periods of time. This could improve the chances of producing useful energy from fusion. en COLLOQUIUM: The Lithium Tokamak eXperiment (LTX) http://www.pppl.gov/events/colloquium-lithium-tokamak-experiment-ltx

452

Modelization and Simulation of Nano Devices in nano calculus  

E-Print Network [OSTI]

Modelization and Simulation of Nano Devices in nano calculus A. Credi1 , M. Garavelli1 , C. Laneve2, Paris Abstract. We develop a process calculus ­ the nano calculus ­ for modeling, analyzing and predicting the properties of molecular devices. The nano calculus is equipped with a simple stochastic model

Paris-Sud XI, Université de

453

Nanosheet-structured LiV3O8 with high capacity and excellent stability for high energy lithium batteries  

E-Print Network [OSTI]

). More envi- ronmentally benign and sustainable energy-storage systems are desired for future power for high-energy lithium battery applications. 1. Introduction Energy storage and conversion have sources.1­6 Lithium-ion batteries are considered to be the most promising energy-storage systems

Cao, Guozhong

454

J. Am. Chem. SOC.1993, 115, 3475-3483 3415 Structure of Lithium Hexamethyldisilazide (LiHMDS) in the  

E-Print Network [OSTI]

J. Am. Chem. SOC.1993, 115, 3475-3483 3415 Structure of Lithium Hexamethyldisilazide (Li of 6Li and I5N isotopically labeled lithium hexamethyldisilazide ([6Li]LiHMDSand [6Li,15N solvation of monomers, dimers, and triple ions [e.g., R2N-Li-NRz-//+LiS4] are readily monitored. Excess (>2

Collum, David B.

455

Modeling of Nonuniform Degradation in Large-Format Li-ion Batteries (Poster)  

SciTech Connect (OSTI)

Shows results of an empirical model capturing effects of both storage and cycling and developed the lithium ion nickel cobalt aluminum advanced battery chemistry.

Smith, K.; Kim, G. H.; Pesaran, A.

2009-06-01T23:59:59.000Z

456

Influence of solvents on the synthesis and electrochemical properties of Li[Li1/5Ni1/10Co1/5Mn1/2]O2 for the applications in lithium-ion batteries  

Science Journals Connector (OSTI)

The Li[Li1/5Ni1/10Co1/5Mn1/2]O2 was prepared with starting materials having acetate functional group, lithium acetate (CH3COOLi · 2H2O), nickel acetate ((CH3COO)2Ni · 4H2O), manganese acetate ((CH3COO)2Mn · 4H2O)...

K. S. Park; C. H. Song; A. Manuel Stephan; S. K. Jeong…

2006-11-01T23:59:59.000Z

457

Member News Nano News Press Releases  

E-Print Network [OSTI]

NanoNEWS Member News Nano News Press Releases Nano Global News Nano Reports Nano Conferences", Exploring Matter with Synchrotron Light" and "Exploring Matter with Neutrons" by ordering from here. Nano. Send your Press R Judith.LightFeather@TNTG.org 14 Oct 2006 Researchers develop bistable nano switch

Espinosa, Horacio D.

458

Surface modifications for carbon lithium intercalation anodes  

DOE Patents [OSTI]

A prefabricated carbon anode containing predetermined amounts of passivating film components is assembled into a lithium-ion rechargeable battery. The modified carbon anode enhances the reduction of the irreversible capacity loss during the first discharge of a cathode-loaded cell. The passivating film components, such as Li.sub.2 O and Li.sub.2 CO.sub.3, of a predetermined amount effective for optimal passivation of carbon, are incorporated into carbon anode materials to produce dry anodes that are essentially free of battery electrolyte prior to battery assembly.

Tran, Tri D. (Livermore, CA); Kinoshita, Kimio (Cupertino, CA)

2000-01-01T23:59:59.000Z

459

Redox shuttles for lithium ion batteries  

DOE Patents [OSTI]

Compounds may have general Formula IVA or IVB. ##STR00001## where, R.sup.8, R.sup.9, R.sup.10, and R.sup.11 are each independently selected from H, F, Cl, Br, CN, NO.sub.2, alkyl, haloalkyl, and alkoxy groups; X and Y are each independently O, S, N, or P; and Z' is a linkage between X and Y. Such compounds may be used as redox shuttles in electrolytes for use in electrochemical cells, batteries and electronic devices.

Weng, Wei; Zhang, Zhengcheng; Amine, Khalil

2014-11-04T23:59:59.000Z

460

Dow Kokam Lithium Ion Battery Production Facilities  

Broader source: Energy.gov [DOE]

2012 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting

Note: This page contains sample records for the topic "lithium ion nano" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


461

Dow Kokam Lithium Ion Battery Production Facilities  

Broader source: Energy.gov [DOE]

2011 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program Annual Merit Review and Peer Evaluation

462

Lithium-Ion Battery Recycling Facilities  

Broader source: Energy.gov [DOE]

2013 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting

463

Lithium-Ion Battery Recycling Facilities  

Broader source: Energy.gov [DOE]

2012 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting

464

Transparent lithium-ion batteries , Sangmoo Jeongb  

E-Print Network [OSTI]

, and solar cells; however, transparent batteries, a key component in fully integrated transparent devices by a microfluidics-assisted method. The feature dimension in the electrode is below the resolution limit of human (11), and solar cells (12­14). However, the battery, a key component in portable electronics, has

Cui, Yi

465

Doping of Glass with Lithium Ion  

Science Journals Connector (OSTI)

Our discovery that the Li+ uptake by the glass walls of the vessels used in the experiments can be used for doping purposes was purely surreptitious. ...

Greg Moakes; Lawrence A. Bottomley; Jiri Janata

2005-01-12T23:59:59.000Z

466

Nanocomposite Materials for Lithium-Ion Batteries  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

against oil price volatility. However, cost, energy storage limitations, and other factors have prevented extensive adoption of PHEVs and HEVs to date. Nanotechnologies offer a...

467

Lithium-Ion Battery Recycling Issues  

Broader source: Energy.gov [DOE]

2009 DOE Hydrogen Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting, May 18-22, 2009 -- Washington D.C.

468

JCESR: Moving Beyond Lithium-Ion  

ScienceCinema (OSTI)

The Joint Center for Energy Storage Research (JCESR; http://www.jcesr.org/) is a major research partnership that integrates government, academic, and industrial researchers from many disciplines. JCESR's vision is to transform transportation and the electricity grid with high-performance, low cost energy storage.

Zavadil, Kevin; Crabtree, George; Gallagher, Kevin; Trahey, Lynn; Srinivasan, Venkat; Chiang, Yet-Ming; Chamberlain, Jeff

2014-11-18T23:59:59.000Z

469

JCESR: Moving Beyond Lithium-Ion  

SciTech Connect (OSTI)

The Joint Center for Energy Storage Research (JCESR; http://www.jcesr.org/) is a major research partnership that integrates government, academic, and industrial researchers from many disciplines. JCESR's vision is to transform transportation and the electricity grid with high-performance, low cost energy storage.

Zavadil, Kevin; Crabtree, George; Gallagher, Kevin; Trahey, Lynn; Srinivasan, Venkat; Chiang, Yet-Ming; Chamberlain, Jeff

2014-10-16T23:59:59.000Z

470

Side Reactions in Lithium-Ion Batteries  

E-Print Network [OSTI]

efforts to develop new high-energy materials such as siliconNew Cathode Material for Batteries of High- Energy Density.

Tang, Maureen Han-Mei

2012-01-01T23:59:59.000Z

471

Side Reactions in Lithium-Ion Batteries  

E-Print Network [OSTI]

attic with colleagues Paul Albertus, Penny Gunterman, Ryanalso owe a great deal to Paul Albertus, whose level-headed,

Tang, Maureen Han-Mei

2012-01-01T23:59:59.000Z

472

Simulations of Plug-in Hybrid Vehicles Using Advanced Lithium Batteries and Ultracapacitors on Various Driving Cycles  

E-Print Network [OSTI]

7: Simulation results for the batteries alone kW kW Batteryor even lithium-ion batteries. This is another advantagewith the air-electrode batteries. Table 6: Simulation

Burke, Andy; Zhao, Hengbing

2010-01-01T23:59:59.000Z

473

Resynthesis of LiCo1?xMnxO2 as a cathode material for lithium secondary batteries  

Science Journals Connector (OSTI)

A recycling process involving chemical, mechanical, and electrochemical steps has been applied to recover cobalt from spent lithium ion batteries and resynthesize cathode active materials. LiCo1?xMnxO2...powders ...

Soo-Kyung Kim; Dong-Hyo Yang; Jeong-Soo Sohn…

2012-04-01T23:59:59.000Z

474

Polymer Electrolytes for Advanced Lithium Batteries | Department...  

Broader source: Energy.gov (indexed) [DOE]

Advanced Lithium Batteries Polymer Electrolytes for Advanced Lithium Batteries 2009 DOE Hydrogen Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation...

475

Lithium Metal Anodes for Rechargeable Batteries. | EMSL  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Metal Anodes for Rechargeable Batteries. Lithium Metal Anodes for Rechargeable Batteries. Abstract: Rechargeable lithium metal batteries have much higher energy density than those...

476

Design and Simulation of Lithium Rechargeable Batteries  

E-Print Network [OSTI]

Gabano, Ed. , Lithium Batteries, Academic Press, New York,K. V. Kordesch, "Primary Batteries 1951-1976," J. Elec- n ~.Rechargeable Lithium Batteries," J. Electrochem. Soc. , [20

Doyle, C.M.

2010-01-01T23:59:59.000Z

477

EERE Partner Testimonials - Phil Roberts, California Lithium...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Phil Roberts, California Lithium Battery (CalBattery) EERE Partner Testimonials - Phil Roberts, California Lithium Battery (CalBattery) Addthis Text Version The words "Office of...

478

Design and Simulation of Lithium Rechargeable Batteries  

E-Print Network [OSTI]

Newman, "Thermal Modeling of the LithiumIPolymer Battery I.J. Newman, "Thermal Modeling of the LithiumIPolymer Battery

Doyle, C.M.

2010-01-01T23:59:59.000Z

479

Washington: Graphene Nanostructures for Lithium Batteries Recieves...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Washington: Graphene Nanostructures for Lithium Batteries Recieves 2012 R&D 100 Award Washington: Graphene Nanostructures for Lithium Batteries Recieves 2012 R&D 100 Award February...

480

Sulfur-graphene oxide material for lithium-sulfur battery cathodes  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Sulfur-graphene oxide material for lithium-sulfur battery cathodes Sulfur-graphene oxide material for lithium-sulfur battery cathodes Theoretical specific energy and theoretical energy density Scanning electron micrograph of the GO-S nanocomposite June 2013 Searching for a safer, less expensive alternative to today's lithium-ion batteries, scientists have turned to lithium-sulfur as a possible chemistry for next-generation batteries. Li/S batteries have several times the energy storage capacity of the best currently available rechargeable Li-ion battery, and sulfur is inexpensive and nontoxic. Current batteries using this chemistry, however, suffer from extremely short cycle life-they don't last through many charge-discharge cycles before they fail. A research team led by Elton Cairns and Yuegang Zhang has developed a new

Note: This page contains sample records for the topic "lithium ion nano" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


481

Lithium-based electrochromic mirrors  

E-Print Network [OSTI]

LITHIUM-BASED ELECTROCHROMIC MIRRORS Thomas J. Richardson*with pure antimony films. Electrochromic cycling speed andand silver. INTRODUCTION Electrochromic devices that exhibit

Richardson, Thomas J.; Slack, Jonathan L.

2003-01-01T23:59:59.000Z

482

Science&TechnologyHighlights As the world's lightest metal, lithium is well positioned to meet  

E-Print Network [OSTI]

, strategic investments have been made in metal-air, aluminum-ion, and all solid-state batteries; safety, light- weight, high-energy density, lithium ion batteries are attractive for plug-in hybrid and battery for battery R&D at ORNL. Traditionally, battery technology was driven by electrochemical advance- ments

Pennycook, Steve

483

Identification of electron and hole traps in lithium tetraborate (Li{sub 2}B{sub 4}O{sub 7}) crystals: Oxygen vacancies and lithium vacancies  

SciTech Connect (OSTI)

Electron paramagnetic resonance (EPR) and electron-nuclear double resonance (ENDOR) are used to identify and characterize electrons trapped by oxygen vacancies and holes trapped by lithium vacancies in lithium tetraborate (Li{sub 2}B{sub 4}O{sub 7}) crystals. Our study includes a crystal with the natural abundances of {sup 10}B and {sup 11}B and a crystal highly enriched with {sup 10}B. The as-grown crystals contain isolated oxygen vacancies, lithium vacancies, and copper impurities, all in nonparamagnetic charge states. During an irradiation at 77 K with 60 kV x-rays, doubly ionized oxygen vacancies trap electrons while singly ionized lithium vacancies and monovalent copper impurities trap holes. The vacancies return to their preirradiation charge states when the temperature of the sample is increased to approximately 90 K. Hyperfine interactions with {sup 10}B and {sup 11}B nuclei, observed between 13 and 40 K in the radiation-induced EPR and ENDOR spectra, provide models for the two vacancy-related defects. The electron trapped by an oxygen vacancy is localized primarily on only one of the two neighboring boron ions while the hole stabilized by a lithium vacancy is localized on a neighboring oxygen ion with nearly equal interactions with the two boron ions adjacent to the oxygen ion.

Swinney, M. W.; McClory, J. W.; Petrosky, J. C. [Department of Engineering Physics, Air Force Institute of Technology, Wright-Patterson Air Force Base, Ohio 45433 (United States); Yang Shan; Brant, A. T.; Halliburton, L. E. [Department of Physics, West Virginia University, Morgantown, West Virginia 26506 (United States); Adamiv, V. T.; Burak, Ya. V. [Institute of Physical Optics, Dragomanov 23, L'viv 79005 (Ukraine); Dowben, P. A. [Department of Physics and Astronomy, Nebraska Center for Materials and Nanoscience, University of Nebraska, Lincoln, Nebraska 68588 (United States)

2010-06-15T23:59:59.000Z

484

Spray-drying synthesized lithium-excess Li4+xTi5?xO12?? and its electrochemical property as negative electrode material for Li-ion batteries  

Science Journals Connector (OSTI)

Li4Ti5O12 (Fd-3m space group) materials were synthesized by controlling the lithium and titanium ratios (Li/Ti) in the range of 0.800–0.900 by using a spray-drying method, followed by calcination at several temperatures between 700 and 900 °C for large-scale production. Chemical and structure studies of the final products were done by X-ray diffraction (XRD), neutron diffraction (ND), X-ray photon electron spectroscopy (XPS), scanning electron microscopy (SEM) and inductively coupled plasma mass spectrometry (ICP-MS). The optimum synthesis condition was examined in relation to the electrochemical characteristics including charge–discharge cycling and ac impedance spectroscopy. It was found that when the spray-drying precursors at the Li/Ti ratio of 0.860 were calcined at 700–900 °C for 12 h in air, a pure Li4+xTi5?xO12?? (x = 0.06–0.08) phase with a lithium-excess composition was obtained. Based on the structural studies, it was found that the excess lithium is located at the lithium and titanium layer of the 16d site in the spinel structure (Fd-3m). These pure Li4+xTi5?xO12?? (x = 0.06–0.08) phase materials showed a higher discharge capacity of ?164 mAh g?1 at 1.55 V (vs. Li/Li+), between the cut-off voltage of 1.2–3.0, with an excellent cyclability and superior rate performance in comparison with the Li4Ti5O12 phase containing impurity phases.

Daisuke Yoshikawa; Yoshihiro Kadoma; Jung-Min Kim; Koichi Ui; Naoaki Kumagai; Naoto Kitamura; Yasushi Idemoto

2010-01-01T23:59:59.000Z

485

Synthesis and characterization of Pt-doped LiFePO4/C composites using the sol–gel method as the cathode material in lithium-ion batteries  

Science Journals Connector (OSTI)

The LiFePO4 and LiFe0.96Pt0.04PO4 samples were synthesized using the sol–gel method. The precursor materials were Li(CH3COO) (lithium acetate, Alfa Aesar), Fe(NO3)3·9H2O (iron nitrate, Sigma Aldrich), H2PtCl6·6H2

M. Talebi-Esfandarani; O. Savadogo

2014-05-01T23:59:59.000Z

486

Molecular Structure and Stability of Dissolved Lithium Polysulfide Species  

SciTech Connect (OSTI)

Ability to predict the solubility and stability of lithium polysulfide is vital in realizing longer lasting lithium-sulfur batteries. Herein we report a combined computational and experimental spectroscopic analysis to understand the dissolution mechanism of lithium polysulfide species in an aprotic solvent medium. Multinuclear NMR and sulfur K-edge X-ray absorption (XAS) analysis reveals that the lithium exchange between polysulfide species and solvent molecule constitutes the first step in the dissolution process. Lithium exchange leads to de-lithiated polysulfide ions which subsequently forms highly reactive free radicals through disproportion reaction. The energy required for the disproportion and possible dimer formation reactions of the polysulfide species are analyzed using density functional theory (DFT) calculations. We validate our calculations with variable temperature electron spin resonance (ESR) measurements. Based on these findings, we discuss approaches to optimize the electrolyte in order to control the polysulfide solubility. The energy required for the disproportion and possible dimer formation reactions of the polysulfide species are analyzed using density functional theory (DFT) calculations. We validate our calculations with variable temperature electron spin resonance (ESR) measurements. Based on these findings, we discuss approaches to optimize the electrolyte in order to control the polysulfide solubility.

Vijayakumar, M.; Govind, Niranjan; Walter, Eric D.; Burton, Sarah D.; Shukla, Anil K.; Devaraj, Arun; Xiao, Jie; Liu, Jun; Wang, Chong M.; Karim, Ayman M.; Thevuthasan, Suntharampillai

2014-03-24T23:59:59.000Z

487

PNNL: Research Highlights - Nano Science, Engineering, and Technology  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Research Highlights Research Highlights Advanced Characterization and other new tools for Nanoscience and Technology PNNL and FEI team to use new approach to rapidly obtain three dimensional information about elemental distribution in nanoparticles. The method was applied to a lithium-rich nickel-based material that could be part of tomorrow's batteries. The research team discovered how nickel was segregating on the material's surface. Part of a series of groundbreaking research involving nano-scale characterization of battery materials. This research was featured in Phys.Org. The Birth of nanoDESI New technique provides sensitive analysis of atmospheric particles Scientific Stimulus Produces Results A cascade of opportunities are unleashed by one instrument, a novel idea, and EMSL's intramural program

488

Nuclear magnetic resonance investigation of dynamics in poly(ethylene oxide)-based lithium polyether-ester-sulfonate ionomers  

DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

Nuclear magnetic resonance (NMR) spectroscopy has been utilized to investigate the dynamics of poly(ethylene oxide)-based lithium sulfonate ionomer samples that have low glass transition temperatures. 1H and 7Li spin-lattice relaxation times (T1) of the bulk polymer and lithium ions, respectively, were measured and analyzed in samples with a range of ion contents. The temperature dependence of T1 values along with the presence of minima in T1 as a function of temperature enabled correlation times and activation energies to be obtained for both the segmental motion of the polymer backbone and the hopping motion of lithium cations. Similar activation energies for motion of both the polymer and lithium ions in the samples with lower ion content indicate that the polymer segmental motion and lithium ion hopping motion are correlated in these samples, even though their respective correlation times differ significantly. A divergent trend is observed for correlation times and activation energies of the highest ion content sample with 100% lithium sulfonation due to the presence of ionic aggregation. Details of the polymer and cation dynamics on the nanosecond timescale are discussed and complement the findings of X-ray scattering and Quasi Elastic Neutron Scattering experiments.

Roach, David J. [Pennsylvania State University, University Park, PA (United States); Dou, Shichen [Pennsylvania State University, University Park, PA (United States); Colby, Ralph H. [Pennsylvania State University, University Park, PA (United States); Mueller, Karl T. [Pacific Northwest Lab., Richland, WA (United States)

2012-01-06T23:59:59.000Z

489

Diffractive Nano-Focusing and Nano-Imaging  

Science Journals Connector (OSTI)

Diffractive nano-focusing and nano-imaging with photon sieves and modified Fresnel zone plates are introduced. Especially, the individual far-field model for photon sieves and the...

Cao, Qing

490

Computational study of the transport mechanisms of molecules and ions in solid materials  

E-Print Network [OSTI]

electrolytes is a key element in the development of the solid lithium ion batteries. One promising material is dilithium phthalocyanine (Li2Pc), which upon self-assembly may form conducting channels for fast ion transport. Computational chemistry is employed...

Zhang, Yingchun

2009-06-02T23:59:59.000Z

491

Excess lithium salt functions more than compensating for lithium loss when synthesizing Li6.5La3Ta0.5Zr1.5O12 in alumina crucible  

Science Journals Connector (OSTI)

Abstract Garnet type electrolyte “Li6.5La3Ta0.5Zr1.5O12” (LLZTO) was prepared by conventional solid-state reaction in alumina crucibles and excess lithium salt (from 0% to 50 mol%) was added into the starting materials to investigate the effects of excess lithium salt on the property of LLZTO. SEM, XRD and AC impedance were used to determine the microstructure, phase formation and Li-ion conductivity. Cubic garnet with a minor second phase LiAlO2 in the grain boundary was obtained for the pellets with excess lithium salt. As the amount of excess lithium salt increased, more Al element diffused from alumina crucibles to LLZTO pellets and reacted with excess lithium salt to form liquid Li2O–Al2O3 phase in the grain boundary, which accelerated the pellets' densification and reduced lithium loss at a high temperature. Ionic conductivity of LLZTO pellets increased with the amount of excess lithium salt added and leveled off at ?4 × 10?4 S cm?1 when lithium salt exceeded 30 mol%. The performance of Li-air batteries with hybrid electrolytes, using homemade LLZTO thin pellets as solid electrolytes, was investigated. The LLZTO thin pellet with more excess lithium salt in starting material had a higher density and resulted in better cell performance.

Kai Liu; Jiang-Tao Ma; Chang-An Wang

2014-01-01T23:59:59.000Z

492

Lithium niobate explosion monitor  

DOE Patents [OSTI]

Monitoring explosive devices is accomplished with a substantially z-cut lithium niobate crystal in abutment with the explosive device. Upon impact by a shock wave from detonation of the explosive device, the crystal emits a current pulse prior to destruction of the crystal. The current pulse is detected by a current viewing transformer and recorded as a function of time in nanoseconds. In order to self-check the crystal, the crystal has a chromium film resistor deposited thereon which may be heated by a current pulse prior to detonation. This generates a charge which is detected by a charge amplifier. 8 figs.

Bundy, C.H.; Graham, R.A.; Kuehn, S.F.; Precit, R.R.; Rogers, M.S.

1990-01-09T23:59:59.000Z

493

Lithium niobate explosion monitor  

DOE Patents [OSTI]

Monitoring explosive devices is accomplished with a substantially z-cut lithium niobate crystal in abutment with the explosive device. Upon impact by a shock wave from detonation of the explosive device, the crystal emits a current pulse prior to destruction of the crystal. The current pulse is detected by a current viewing transformer and recorded as a function of time in nanoseconds. In order to self-check the crystal, the crystal has a chromium film resistor deposited thereon which may be heated by a current pulse prior to detonation. This generates a charge which is detected by a charge amplifier.

Bundy, Charles H. (Clearwater, FL); Graham, Robert A. (Los Lunas, NM); Kuehn, Stephen F. (Albuquerque, NM); Precit, Richard R. (Albuquerque, NM); Rogers, Michael S. (Albuquerque, NM)

1990-01-01T23:59:59.000Z

494

Three-Dimensional Graphene Foam Supported Fe3O4 Lithium Battery Anodes with Long Cycle Life and High Rate Capability  

Science Journals Connector (OSTI)

Three-Dimensional Graphene Foam Supported Fe3O4 Lithium Battery Anodes with Long Cycle Life and High Rate Capability ... Ge Nanoparticles Encapsulated in Nitrogen-Doped Reduced Graphene Oxide as an Advanced Anode Material for Lithium-Ion Batteries ...

Jingsh