Powered by Deep Web Technologies
Note: This page contains sample records for the topic "li ion battery" 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.


1

Graphene/Li-ion battery  

Science Journals Connector (OSTI)

Density function theory calculations were carried out to clarify storage states of Lithium (Li) ions in graphene clusters. The adsorption energy spin polarization charge distribution electronic gap surface curvature and dipole momentum were calculated for each cluster. Li-ion adsorbed graphene doped by one Li atom is spin polarized so there would be different gaps for different spin polarization in electrons. Calculation results demonstrated that a smaller cluster between each two larger clusters is preferable because it could improve grapheneLi-ion batteries; consequently the most proper graphene anode structure has been proposed.

Narjes Kheirabadi; Azizollah Shafiekhani

2012-01-01T23:59:59.000Z

2

Improved Positive Electrode Materials for Li-ion Batteries  

E-Print Network [OSTI]

of the assembled Li-ion battery, such as the operating1-4: Schematic of a Li-ion battery. Li + ions are shuttledprocessing of active Li-ion battery materials. Various

Conry, Thomas Edward

2012-01-01T23:59:59.000Z

3

Characterization of Li-ion Batteries using Neutron Diffraction...  

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

Li-ion Batteries using Neutron Diffraction and Infrared Imaging Techniques Characterization of Li-ion Batteries using Neutron Diffraction and Infrared Imaging Techniques 2011 DOE...

4

Li-Ion Battery Cell Manufacturing | Department of Energy  

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

Li-Ion Battery Cell Manufacturing Li-Ion Battery Cell Manufacturing 2011 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program Annual Merit Review and Peer...

5

Thermal Stability of LiPF6 Salt and Li-ion Battery Electrolytes Containing LiPF6  

E-Print Network [OSTI]

of LiPF 6 Salt and Li-ion Battery Electrolytes ContainingLiPF 6 in prototypical Li-ion battery solvents was studied6 and the prototypical Li- ion battery solvents EC, PC, DMC

Yang, Hui; Zhuang, Guorong V.; Ross Jr., Philip N.

2006-01-01T23:59:59.000Z

6

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...

7

Characterization of Materials for Li-ion Batteries: Success Stories...  

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

Characterization of Materials for Li-ion Batteries: Success Stories from the High Temperature Materials Laboratory (HTML) User Program Characterization of Materials for Li-ion...

8

High Voltage Electrolytes for Li-ion Batteries | Department of...  

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

Electrolytes for Li-ion Batteries High Voltage Electrolytes for Li-ion Batteries 2011 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program Annual Merit Review and...

9

Nanoscale LiFePO4 and Li4Ti5O12 for High Rate Li-ion Batteries  

E-Print Network [OSTI]

12 for High Rate Li-ion Batteries A. Jaiswal 1 , C. R. Hornenext generation of Li-ion batteries for consumer electronics

Jaiswal, A.

2010-01-01T23:59:59.000Z

10

Batteries - Next-generation Li-ion batteries Breakout session  

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

Next-generation Li-ion batteries Next-generation Li-ion batteries EV Everywhere Workshop July 26, 2012 Breakout Session #1 - Discussion of Performance Targets and Barriers Comments on the Achievability of the Targets * Overall, everything is achievable, but, clearly, the cost targets are dramatic, particularly for AEV 300. (I have discussed this with Yet-Ming Chiang, who has a good feel for cost reductions, both their importance and interesting approaches.) * AEV 100 achievable with a good silicon/graphite composite anode and LMRNMC (unsure timeline) * AEV 300 would require cycleable Li-metal anode and UHVHC cathode (can't get there with Li-ion intercalation on both electrodes) (unsure timeline) Barriers Interfering with Reaching the Targets * Pack - too high a fraction of inactive materials/inefficient engineering designs.

11

Recycling of Li-Ion Batteries  

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

1 1 Linda Gaines Center for Transportation Research Argonne National Laboratory Recycling of Li-Ion Batteries Illinois Sustainable Technology Center University of Illinois We don't want to trade one crisis for another!  Battery material shortages are unlikely - We demonstrated that lithium demand can be met - Recycling mitigates potential scarcity  Life-cycle analysis checks for unforeseen impacts  We need to find something to do with the used materials - Safe - Economical 2 We answer these questions to address material supply issues  How many electric-drive vehicles will be sold in the US and world-wide?  What kind of batteries might they use? - How much lithium would each battery use?  How much lithium would be needed each year?

12

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...

13

Identity of Passive Film Formed on Aluminum in Li-ion Battery Electrolytes with LiPF6  

E-Print Network [OSTI]

Film on Aluminum in Li-ion Battery Electrolytes with LiPFFormed on Aluminum in Li-ion Battery Electrolytes with LiPFbattery charging. From the prospective of maintaining a functioning cathode in Li-ion

Zhang, Xueyuan; Devine, T.M.

2008-01-01T23:59:59.000Z

14

Thermal Stability of LiPF6 Salt and Li-ion Battery Electrolytes Containing LiPF6  

E-Print Network [OSTI]

Thermal Stability of LiPF 6 Salt and Li-ion Batterythermal stability of the neat LiPF 6 salt and of 1 molal solutions of LiPF 6 in prototypical Li-ion battery

Yang, Hui; Zhuang, Guorong V.; Ross Jr., Philip N.

2006-01-01T23:59:59.000Z

15

Transport and Failure in Li-ion Batteries | Stanford Synchrotron...  

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

Li-ion Batteries Monday, February 13, 2012 - 1:30pm SSRL Conference Room 137-322 Stephen J. Harris, General Motors R&D While battery performance is well predicted by the...

16

Beyond Conventional Cathode Materials for Li-ion Batteries and Na-ion Batteries Nickel fluoride conversion materials and P2 type Na-ion intercalation cathodes /  

E-Print Network [OSTI]

active material for Li-ion battery, Fe2OF4. ElectrochemistryIron Fluoride, in a Li Ion Battery: A Solid-State NMR, X-raymaterials for Li-ion battery133 8.2. P2 type

Lee, Dae Hoe

2013-01-01T23:59:59.000Z

17

Develop high energy high power Li-ion battery cathode materials : a first principles computational study  

E-Print Network [OSTI]

as cathode materials for Li-ion battery. Physica B-CondensedHigh Energy High Power Li-ion Battery Cathode Materials AHigh Energy High Power Li-ion Battery Cathode Materials A

Xu, Bo; Xu, Bo

2012-01-01T23:59:59.000Z

18

Anodic polymerization of vinyl ethylene carbonate in Li-Ion battery electrolyte  

E-Print Network [OSTI]

Ethylene Carbonate in Li-Ion Battery Electrolyte Guoyingof a commercial Li-ion battery electrolyte containing 2 %are an important part of Li-ion battery technology yet their

Chen, Guoying; Zhuang, Guorong V.; Richardson, Thomas J.; Gao, Liu; Ross Jr., Philip N.

2005-01-01T23:59:59.000Z

19

Improvement of Thermal Stability of Li-Ion Batteries by Polymer Coating of LiMn2O4  

E-Print Network [OSTI]

thermal stability of the Li-ion battery. CONCLUSIONS CoatingPDDA. EC- AFM studies on Li-ion battery electrodes offered

Stroeve, Pieter; Vidu, Ruxandra

2004-01-01T23:59:59.000Z

20

Aerosol Synthesis Of Cathode Materials For Li-Ion Batteries.  

E-Print Network [OSTI]

??Rapid advancement of technologies for production of next-generation Li-ion batteries will be critical to address the Nation's need for clean, efficient and secure transportation system (more)

Zhang, Xiaofeng

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "li ion battery" 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

Development of High Capacity Anode for Li-ion Batteries  

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

stability of Si-based anode. 4 Milestones * Synthesize and characterize TiO 2 Graphene and SnO 2 Graphene nano-composite as anode for Li-ion batteries. - on going *...

22

High-Energy Cathode Materials (Li2MnO3LiMO2) for Lithium-Ion Batteries  

Science Journals Connector (OSTI)

High-Energy Cathode Materials (Li2MnO3LiMO2) 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

23

Li-Ion and Other Advanced Battery Technologies  

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

scientist viewing computer screen scientist viewing computer screen Li-Ion and Other Advanced Battery Technologies The research aims to overcome the fundamental chemical and mechanical instabilities that have impeded the development of batteries for vehicles with acceptable range, acceleration, costs, lifetime, and safety. Its aim is to identify and better understand cell performance and lifetime limitations. These batteries have many other applications, in mobile electronic devices, for example. The work addresses synthesis of components into battery cells with determination of failure modes, materials synthesis and evaluation, advanced diagnostics, and improved electrochemical model development. This research involves: Battery development and analysis; Mathematical modeling; Sophisticated diagnostics;

24

Carbonophosphates: A New Family of Cathode Materials for Li-Ion Batteries Identified Computationally  

E-Print Network [OSTI]

Carbonophosphates: A New Family of Cathode Materials for Li-Ion Batteries Identified ABSTRACT: The tremendous growth of Li-ion batteries into a wide variety of applications is setting new applications from portable electronics to electric vehicles. A critical element of a Li-ion battery is the Li

Ceder, Gerbrand

25

NANOMATERIALS FOR HIGH CAPACITY LI-ION BATTERIES Taylor Grieve, Iowa State University, SURF 2009 Fellow  

E-Print Network [OSTI]

NANOMATERIALS FOR HIGH CAPACITY LI-ION BATTERIES Taylor Grieve, Iowa State University, SURF 2009 energy storage devices continues to grow. Lithium-ion (Li-ion) secondary, or renewable, batteries are of interest due to their high energy and power characteristics. Performance enhancements of Li- ion batteries

Li, Mo

26

Simplified Electrochemical and Thermal Model of LiFePO4-Graphite Li-Ion Batteries for Fast Charge Applications  

E-Print Network [OSTI]

Simplified Electrochemical and Thermal Model of LiFePO4- Graphite Li-Ion Batteries for Fast Charge, a simplified electrochemical and thermal model of LiFePO4-graphite based Li-ion batteries is developed for battery management system (BMS) applications and comprehensive aging investigations. Based on a modified

Paris-Sud XI, Université de

27

Beyond Conventional Cathode Materials for Li-ion Batteries and Na-ion Batteries Nickel fluoride conversion materials and P2 type Na-ion intercalation cathodes /  

E-Print Network [OSTI]

in a Li Ion Battery: A Solid-State NMR, X-ray Diffraction,in a Li Ion Battery: A Solid-State NMR, X-ray Diffraction,

Lee, Dae Hoe

2013-01-01T23:59:59.000Z

28

Low-Cost Graphite and Olivine-Based Materials for Li-Ion Batteries...  

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

Low-Cost Graphite and Olivine-Based Materials for Li-Ion Batteries Low-Cost Graphite and Olivine-Based Materials for Li-Ion Batteries Presentation from the U.S. DOE Office of...

29

Development of Cell/Pack Level Models for Automotive Li-Ion Batteries...  

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

CellPack Level Models for Automotive Li-Ion Batteries with Experimental Validation Development of CellPack Level Models for Automotive Li-Ion Batteries with Experimental...

30

Multi-scale Characterization Studies of Aged Li-ion Battery Materials for Improved Performance.  

E-Print Network [OSTI]

?? Among various electrical energy storage devices the recent advances in Li-ion battery technology has made this technology very promising. Li-ion batteries can be used (more)

Nagpure, Shrikant C.

2012-01-01T23:59:59.000Z

31

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

32

Advanced Li-Ion Polymer Battery Cell Manufacturing Plant in USA...  

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

Li-Ion Polymer Battery Cell Manufacturing Plant in USA Advanced Li-Ion Polymer Battery Cell Manufacturing Plant in USA 2012 DOE Hydrogen and Fuel Cells Program and Vehicle...

33

Nonequilibrium Phase Transformation and Particle Shape Effect in LiFePO4 Materials for Li-Ion Batteries  

E-Print Network [OSTI]

-induced nonequilibrium phenomenon in Li-ion batteries. A theoretical anal- ysis is presented to show for Li-ion batteries as power sources in transporta- tion and future energy landscape requires transformaiton in Li ion batteries, especially on meta- stable miscibility gap distortion and discharge behaviors

Liu, Fuqiang

34

Stochastic reconstruction and electrical transport studies of porous cathode of Li-ion batteries  

E-Print Network [OSTI]

of the Li-ion batteries through developing electrode materials [1e5], reducing size [6] and optimizing shape,13], as one of the main factors limiting Li-ion battery performance, has not been resolved. Fundamental the ulti- mate performance and stability. Theoretical work of Li-ion batteries has focused on macroscopic

Liu, Fuqiang

35

Electrolyte Stability Determines Scaling Limits for Solid-State 3D Li Ion Batteries  

E-Print Network [OSTI]

Electrolyte Stability Determines Scaling Limits for Solid-State 3D Li Ion Batteries Dmitry Ruzmetov, all-solid-state Li ion batteries (LIBs) with high specific capacity and small footprint are highly to their high-energy density, Li ion batteries (LIBs) are attractive for these applications, and all-solid-state

Rubloff, Gary W.

36

Electrochimica Acta 51 (2006) 20122022 A generalized cycle life model of rechargeable Li-ion batteries  

E-Print Network [OSTI]

­discharge model to simulate the cycle life behavior of rechargeable Li-ion batteries has been developed. The model and Newman [4] made a first attempt to model the parasitic reaction in Li-ion batteries by assuming a solvent and reversible capacity loss due to the growth and dissolution of SEI film in Li-ion batteries. Ramadass et al

Popov, Branko N.

37

Short communication Enhanced autonomic shutdown of Li-ion batteries by polydopamine  

E-Print Network [OSTI]

Short communication Enhanced autonomic shutdown of Li-ion batteries by polydopamine coated Accepted 9 July 2014 Available online 17 July 2014 Keywords: Li-ion batteries Thermal shutdown Polyethylene binder, applied onto a battery anode surface, dried, and incorporated into Li-ion coin cells. FTIR

Sottos, Nancy R.

38

Predictive Models of Li-ion Battery Lifetime (Presentation)  

SciTech Connect (OSTI)

Predictive models of Li-ion battery reliability must consider a multiplicity of electrochemical, thermal and mechanical degradation modes experienced by batteries in application environments. Complicating matters, Li-ion batteries can experience several path dependent degradation trajectories dependent on storage and cycling history of the application environment. Rates of degradation are controlled by factors such as temperature history, electrochemical operating window, and charge/discharge rate. Lacking accurate models and tests, lifetime uncertainty must be absorbed by overdesign and warranty costs. Degradation models are needed that predict lifetime more accurately and with less test data. Models should also provide engineering feedback for next generation battery designs. This presentation reviews both multi-dimensional physical models and simpler, lumped surrogate models of battery electrochemical and mechanical degradation. Models are compared with cell- and pack-level aging data from commercial Li-ion chemistries. The analysis elucidates the relative importance of electrochemical and mechanical stress-induced degradation mechanisms in real-world operating environments. Opportunities for extending the lifetime of commercial battery systems are explored.

Smith, K.; Wood, E.; Santhanagopalan, S.; Kim, G.; Shi, Y.; Pesaran, A.

2014-09-01T23:59:59.000Z

39

Graphene-enhanced hybrid phase change materials for thermal management of Li-ion batteries  

E-Print Network [OSTI]

Graphene-enhanced hybrid phase change materials for thermal management of Li-ion batteries incorporation leads to significant decrease in the temperature rise in Li-ion batteries. Graphene leads September 2013 Keywords: Battery Thermal management Graphene Phase change material a b s t r a c t Li

40

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

Note: This page contains sample records for the topic "li ion battery" 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

Ultrathin Spinel LiMn2O4 Nanowires as High Power Cathode Materials for Li-Ion Batteries  

E-Print Network [OSTI]

Ultrathin Spinel LiMn2O4 Nanowires as High Power Cathode Materials for Li-Ion Batteries Hyun materials as cathode in lithium ion batteries because of its intrinsic low-cost, environmental friendliness that enhances the contact between active material grains and electrolyte. In particular, LiMn2O4 nanorods

Cui, Yi

42

Synthesis of Li-ion battery cathode materials via freeze granulation.  

E-Print Network [OSTI]

??Recently, enormous efforts have been done within the development of Li-ion batteries for use in portable electric devices from small scale applications such as mobile (more)

Kasvayee, Keivan Amiri

2011-01-01T23:59:59.000Z

43

ESS 2012 Peer Review - Unique Li-ion Batteries for Utility Applications - Daiwon Choi, PNNL  

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

Unique Li-ion Batteries for Utility Unique Li-ion Batteries for Utility Applications Daiwon Choi, Vilayanur V. Viswanathan, Wei Wang, Vincent L. Sprenkle Pacific Northwest National Laboratory 902 Battelle Blvd., P. O. Box 999, Richland, WA 99352, USA DOE Energy Storage Program Review, Washington, DC Sept. 26-28, 2012 Acknowledgment: Dr. Imre Gyuk - Energy Storage Program Manager, Office of Electricity Delivery and Energy Reliability  Investigate the Li-ion battery for stationary energy storage unit in ~kWh level.  Fabrication and optimization of LiFePO 4 / Li 4 Ti 5 O 12 18650 cell.  Li-ion battery energy storage with effective thermal management.  Improve rate and cycle life of Li-ion battery.  Screen possible new cathode/anode electrode materials and its combinations

44

Robustness analysis of State-of-Charge estimation methods for two types of Li-ion batteries  

E-Print Network [OSTI]

Robustness analysis of State-of-Charge estimation methods for two types of Li-ion batteries estimation Li-ion battery Robustness analysis a b s t r a c t Battery State of Charge (SOC) estimation. This paper analyzes the robustness of SOC estimation algorithms for two types of Li-ion batteries under

Peng, Huei

45

Develop high energy high power Li-ion battery cathode materials : a first principles computational study  

E-Print Network [OSTI]

develop the high energy high power cathode materials for LIBNew Cathode Material for Batteries of High- Energy Density.High Energy High Power Li-ion Battery Cathode Materials A

Xu, Bo; Xu, Bo

2012-01-01T23:59:59.000Z

46

Abstract--A novel, accurate, compact, and power efficient Lith-ium-Ion (Li-Ion) battery charger designed to yield maximum  

E-Print Network [OSTI]

1 Abstract-- A novel, accurate, compact, and power efficient Lith- ium-Ion (Li-Ion) battery charger battery, linear charger, switching charger. I. INTRODUCTION ITHIUM-ION (Li-Ion) batteries are widely used of Li-Ion batteries to over-charged voltages im- poses stringent charge requirements on the design

Rincon-Mora, Gabriel A.

47

Stochastic Simulation Model for the 3D Morphology of Composite Materials in Li-Ion Batteries  

E-Print Network [OSTI]

Stochastic Simulation Model for the 3D Morphology of Composite Materials in Li-Ion Batteries Ralf of composite materials used in Li-ion batteries. In this paper, we develop a stochastic simulation model in 3D, Stochastic Simulation Model, Structural Analysis, Marked Point Process, Germ-Grain Model, Model Fitting

Schmidt, Volker

48

Microstructure Reconstruction and Direct Evaluation of Li-Ion Battery Cathodes Fuqiang Liu* and N A Siddique  

E-Print Network [OSTI]

Microstructure Reconstruction and Direct Evaluation of Li-Ion Battery Cathodes Fuqiang Liu* and N of Texas at Arlington, Arlington, Texas 76019, USA High-capacity Li-ion batteries are among the best of the major challenges in Li-ion batteries is to improve mass transport across multiple phase interfaces

Liu, Fuqiang

49

High Voltage Electrolytes for Li-ion Batteries  

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

FY09 and FY10 * 400K (DOE) Timeline Budget Barriers * Argonne National Laboratory * Saft Batteries * University of Maryland Partners * State-of-the-art LiPF 6 Carbonate...

50

Two-phase transition of Li-intercalation compounds in Li-ion batteries  

Science Journals Connector (OSTI)

Among all electrode materials, olivine LiFePO4 and spinel Li4Ti5O12 are well-known for their two-phase structure, characterized by a flat voltage plateau. The phase transition in olivine LiFePO4 may be modeled in single particle and many-particle systems at room temperature, based on the thermodynamic phase diagram which is easily affected by coherency strain and the size effect. Some metastable and transient phases in the phase diagram can also be detected during non-equilibrium electrochemical processes. In comparison to olivine LiFePO4, spinel Li4Ti5O12 possesses a zero strain property and performs Li-site switching during the phase transition, which lead to a different phase structure. Here, the phase transitions of olivine LiFePO4 and spinel Li4Ti5O12 are systematically reviewed, and the concepts discussed may be extended to other two-phase Li-intercalation compounds in Li-ion batteries.

De Li; Haoshen Zhou

2014-01-01T23:59:59.000Z

51

In-situ raman microscopy of individual LiNi0.8Co0.15Al0.05O2 particles in the Li-ion battery composite cathode  

E-Print Network [OSTI]

2 Particles in the Li-ion Battery Composite Cathode Jingleidegradation of various Li-ion battery systems has been the

Lei, Jinglei; McLarnon, Frank; Kostecki, Robert

2004-01-01T23:59:59.000Z

52

Short communication Hierarchical SiOx nanoconifers for Li-ion battery anodes with  

E-Print Network [OSTI]

oxide Li rechargeable battery Anode Nanoconifer Nanowire Thermal evaporation a b s t r a c t Silicon subShort communication Hierarchical SiOx nanoconifers for Li-ion battery anodes with structural through a simple thermal evaporation process.

Jo, Moon-Ho

53

Studies on Capacity Fade of Spinel based Li-Ion Batteries  

E-Print Network [OSTI]

Engineering University of South Carolina #12;Physical Characteristics of Cellbatt Lithium Ion Battery Engineering University of South Carolina #12;Change in discharge capacity for Li-ion cells charged for Electrochemical Engineering University of South Carolina #12;Experimental Full Cell studies on CellBatt® Li-ion

Popov, Branko N.

54

Adaptation of an Electrochemistry-based Li-Ion Battery Model to Account for Deterioration Observed Under Randomized Use  

E-Print Network [OSTI]

Adaptation of an Electrochemistry-based Li-Ion Battery Model to Account for Deterioration Observed). In this paper, we use an electrochemistry-based lithium ion (Li-ion) battery model developed in (Daigle, Moffett Field, CA 94035 matthew.j.daigle@nasa.gov ABSTRACT Tracking the variation in battery dynamics

Daigle, Matthew

55

Second-Use Li-Ion Batteries to Aid Automotive and Utility Industries (Fact Sheet)  

SciTech Connect (OSTI)

Repurposing Li-ion batteries at the end of useful life in electric drive vehicles could eliminate owners' disposal concerns and offer low-cost energy storage for certain applications.

Not Available

2014-01-01T23:59:59.000Z

56

Applied Surface Science 266 (2013) 516 Interphase chemistry of Si electrodes used as anodes in Li-ion batteries  

E-Print Network [OSTI]

in Li-ion batteries Catarina Pereira-Nabaisa,b , Jolanta S´wiatowskaa, , Alexandre Chagnesb, , Franc made to increase the energy density of lithium-ion batteries (LiB), namely for electric vehicle applications. One way to improve the energy density of a battery is to use high specific capacity materials, e

Boyer, Edmond

57

A high-gain adaptive observer for detecting Li-ion battery terminal voltage collapse  

Science Journals Connector (OSTI)

We use a high-gain adaptive observer and a trend filtering algorithm to detect early stages that lead to terminal voltage collapses in Li-ion batteries. This approach allows accurate detection without having sophisticated battery models. Theoretical ... Keywords: Adaptive filters, Adaptive systems, Detection algorithms, High-gain, Trend

Shayok Mukhopadhyay, Fumin Zhang

2014-03-01T23:59:59.000Z

58

A techno-economic analysis and optimization of Li-ion batteries for light-duty passenger vehicle electrification  

E-Print Network [OSTI]

A techno-economic analysis and optimization of Li-ion batteries for light-duty passenger vehicle 15213, USA h i g h l i g h t s We analyze EV Li-ion NMC-G battery & pack designs and optimize thickness a b s t r a c t We conduct a techno-economic analysis of Li-ion NMC-G prismatic pouch battery

McGaughey, Alan

59

Li-Ion Battery with LiFePO4 Cathode and Li4Ti5O12 Anode for Stationary Energy Storage  

SciTech Connect (OSTI)

i-ion batteries based on commercially available LiFePO4 cathode and Li4Ti5O12 anode were investigated for potential stationary energy storage applications. The full cell that operated at flat 1.85V demonstrated stable cycling for 200 cycles followed by a rapid fade. A significant improvement in cycling stability was achieved via Ketjen black coating of the cathode. A Li-ion full cell with Ketjen black modified LiFePO4 cathode and an unmodified Li4Ti5O12 anode exhibited negligible fade after more than 1200 cycles with a capacity of ~130mAh/g. The improved stability, along with its cost-effectiveness, environmentally benignity and safety, make the LiFePO4/ Li4Ti5O12 Li-ion battery a promising option of storing renewable energy.

Wang, Wei; Choi, Daiwon; Yang, Zhenguo

2013-01-01T23:59:59.000Z

60

Energy efficiency of Li-ion battery packs re-used in stationary power applications  

Science Journals Connector (OSTI)

Abstract The effects of capacity fade, energy efficiency fade, failure rate, and charge/discharge profile are investigated for lithium-ion (Li-ion) batteries based on first use in electric vehicles (EVs) and second-use in energy storage systems (ESS). The research supports the feasibility of re-purposing used Li-ion batteries from \\{EVs\\} for use in ESS. Based on data extrapolation from previous studies with a low number of charge/discharge cycles, it is estimated that the EV battery loses 20% of its capacity during its first use in the vehicle and a further 15% after its second use in the ESS over 10years. As energy efficiency decreases with increased charge/discharge cycles, a capacity fade model is used to approximate the effect of the relationship between cycles and capacity fade over the life of the battery. The performance of the battery in its second use is represented using a model of degradation modes, assuming a 0.01% cell failure rate and a non-symmetric charge/discharge profile. Finally, an accurate modeling of battery performance is used to examine energy savings and greenhouse gas (GHG) emission reduction benefits from using a Li-ion battery first in an EV and then in an ESS connected to the Ontario electrical grid.

Leila Ahmadi; Michael Fowler; Steven B. Young; Roydon A. Fraser; Ben Gaffney; Sean B. Walker

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "li ion battery" 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

Figure 1. Schematic drawing showing the components of a Li-ion battery cell and the information that can be  

E-Print Network [OSTI]

Proposals In Situ Electron Microscopy and Spectroscopy Studies of Interfaces in Advanced Li-ion BatteriesFigure 1. Schematic drawing showing the components of a Li-ion battery cell and the information (8300 28th Ct NE, Unit 200, Lacey, Washington 98516) Electrochemical energy storage devices (EES

62

In Situ X-ray Study of the Solid Electrolyte Interphase (SEI) Formation on Graphene as a Model Li-ion Battery Anode  

Science Journals Connector (OSTI)

In Situ X-ray Study of the Solid Electrolyte Interphase (SEI) Formation on Graphene as a Model Li-ion Battery Anode ... Li-ion batteries; solid electrolyte interphase; graphene; graphite; X-ray scattering ...

Sudeshna Chattopadhyay; Albert L. Lipson; Hunter J. Karmel; Jonathan D. Emery; Timothy T. Fister; Paul A. Fenter; Mark C. Hersam; Michael J. Bedzyk

2012-07-23T23:59:59.000Z

63

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

64

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

65

Cahn-Hilliard Reaction Model for Isotropic Li-ion Battery Particles Yi Zeng1, Martin Z. Bazant1,2  

E-Print Network [OSTI]

Cahn-Hilliard Reaction Model for Isotropic Li-ion Battery Particles Yi Zeng1, Martin Z. Bazant1,2 1 particle. This general approach extends previous Li-ion battery models, which either neglect phase theory for Li-ion batteries [13, 18] with Butler-Volmer kinetics and concentration depen- dent

Bazant, Martin Z.

66

Contribution of Li-Ion Batteries to the Environmental Impact of Electric Vehicles  

Science Journals Connector (OSTI)

Contribution of Li-Ion Batteries to the Environmental Impact of Electric Vehicles ... The production of concentrated lithium brine includes inspissations of lithium containing brine by solar energy in the desert of Atacama. ... Concerning EI99 H/A, the production of the anode generates the highest impact, while CED, GWP, and ADP show the highest impact for the production of the cathode. ...

Dominic A. Notter; Marcel Gauch; Rolf Widmer; Patrick Wger; Anna Stamp; Rainer Zah; Hans-Jrg Althaus

2010-08-09T23:59:59.000Z

67

Block Copolymer Solid Battery Electrolyte with High Li-Ion Transference Number  

E-Print Network [OSTI]

Block Copolymer Solid Battery Electrolyte with High Li-Ion Transference Number Ayan Ghosh number TLi+ value of 0.9 at room temperature 21­23°C . The solid-state flexible, translucent polymer of withstanding such high voltage conditions. Unlike traditional liquid electrolytes, solid-state polymer electro

Rubloff, Gary W.

68

Measurements of the Fracture Energy of Lithiated Silicon Electrodes of Li-Ion Batteries  

E-Print Network [OSTI]

Measurements of the Fracture Energy of Lithiated Silicon Electrodes of Li-Ion Batteries Matt Pharr, Cambridge, Massachusetts 02138, United States ABSTRACT: We have measured the fracture energy of lithiated, the fracture energy at a second state of charge (at small concentrations of lithium) is measured by determining

Suo, Zhigang

69

1 Measurements of the Fracture Energy of Lithiated Silicon Electrodes 2 of Li-Ion Batteries  

E-Print Network [OSTI]

1 Measurements of the Fracture Energy of Lithiated Silicon Electrodes 2 of Li-Ion Batteries 3 Matt University, Cambridge, Massachusetts 02138, United States 5 ABSTRACT: We have measured the fracture energy parallel. The stress in the electrodes is measured during 10 electrochemical cycling by the substrate

70

Short communication Ion beam-mixed Ge electrodes for high capacity Li rechargeable batteries  

E-Print Network [OSTI]

Short communication Ion beam-mixed Ge electrodes for high capacity Li rechargeable batteries N a Department of Materials Science and Engineering, University of Florida, 100 Rhines Hall, PO Box 116400, Gainesville, FL 32611-6400, USA b Department of Electronic Materials Engineering, Research School of Physics

Volinsky, Alex A.

71

Dual active material composite cathode structures for Li-ion batteries  

Science Journals Connector (OSTI)

The efficacy of composite Li-ion battery cathodes made by mixing active materials that possessed either high-rate capability or high specific energy was examined. The cathode structures studied contained carbon-coated LiFePO4 and either Li[Li0.17Mn0.58Ni0.25]O2 or LiCoO2. These active materials were arranged using three different electrode geometries: fully intermixed, fully separated, or layered. Discharge rate studies, cycle-life evaluation, and electrochemical impedance spectroscopy studies were conducted using coin cell test structures containing Li-metal anodes. Results indicated that electrode configuration was correlated to rate capability and degree of polarization if there was a large differential between the rate capabilities of the two active material species.

J.F. Whitacre; K. Zaghib; W.C. West; B.V. Ratnakumar

2008-01-01T23:59:59.000Z

72

New Li-ion Battery Evaluation Research Based on Thermal Property and Heat Generation Behavior of Battery  

Science Journals Connector (OSTI)

We do a new Li-ion battery evaluation research on the effects of cell resistance and polarization on the energy loss in batteries based on thermal property and heat generation behavior of battery. Series of 18650 cells with different capacities and electrode materials are evaluated by measuring input and output energy which change with charge-discharge time and current. Based on the results of these tests, we build a model of energy loss in cells' charge-discharge process, which include Joule heat and polarization heat impact factors. It was reported that Joule heat was caused by cell resistance, which included DC-resistance and reaction resistance, and reaction resistance could not be easily obtained through routine test method. Using this new method, we can get the total resistance R and the polarization parameter ?. The relationship between R, ?, and temperature is also investigated in order to build a general model for series of different Li-ion batteries, and the research can be used in the performance evaluation, state of charge prediction and the measuring of consistency of the batteries.

Zhe Lv; Xun Guo; Xin-ping Qiu

2012-01-01T23:59:59.000Z

73

Investigation of critical parameters in Li-ion battery electrodes...  

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

at 500CT1000C for 12 h. Technical accomplishments: LiNi 12 Mn 32 O 4 , Neutron Diffraction 500C 700C 900C 1000C 7 Technical accomplishments: LiNi 12 Mn...

74

Thermal analyses of LiCoO2 lithium-ion battery during oven tests  

Science Journals Connector (OSTI)

A three dimensional thermal abuse model for graphite/LiPF6/LiCoO2 batteries is established particularly for oven tests. To ... of heat release condition and oven temperature on battery thermal behaviors, we perfo...

Peng Peng; Yiqiong Sun; Fangming Jiang

2014-10-01T23:59:59.000Z

75

High Voltage Electrolytes for Li-ion Batteries  

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

* Funding for FY12 * 250K Timeline Budget Barriers * Argonne National Laboratory * Saft Batteries * U of Texas, Austin * U of Utah * U of Maryland Partners * SOA electrolytes...

76

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

77

Li?Air Rechargeable Battery Based on Metal-free Graphene Nanosheet Catalysts  

Science Journals Connector (OSTI)

Li?Air Rechargeable Battery Based on Metal-free Graphene Nanosheet Catalysts ... Aqueous Rechargeable Li and Na Ion Batteries ...

Eunjoo Yoo; Haoshen Zhou

2011-03-25T23:59:59.000Z

78

Develop high energy high power Li-ion battery cathode materials : a first principles computational study  

E-Print Network [OSTI]

lithium battery cathode. Electrochemical and Solid Statebattery performance of LiMn2O4 cathode. Solid State Ionics,

Xu, Bo; Xu, Bo

2012-01-01T23:59:59.000Z

79

Novel Pyrolyzed Polyaniline-Grafted Silicon Nanoparticles Encapsulated in Graphene Sheets As Li-Ion Battery Anodes  

Science Journals Connector (OSTI)

Novel Pyrolyzed Polyaniline-Grafted Silicon Nanoparticles Encapsulated in Graphene Sheets As Li-Ion Battery Anodes ... The composite materials exhibit better cycling stability and Coulombic efficiency as anodes in lithium ion batteries, as compared to pure Si nanoparticles and physically mixed graphene/Si composites. ...

Zhe-Fei Li; Hangyu Zhang; Qi Liu; Yadong Liu; Lia Stanciu; Jian Xie

2014-04-04T23:59:59.000Z

80

ZnWO4 nanocrystals/reduced graphene oxide hybrids: Synthesis and their application for Li ion batteries  

Science Journals Connector (OSTI)

ZnWO4..., as an environment-friendly and economic material, has the potential for Li ion batteries (LIB) application. In this paper,...4 supported on the reduced graphene oxide (RGO) to improve its LIB...4 nanocr...

Xiao Wang; BoLong Li; DaPeng Liu; HuanMing Xiong

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "li ion battery" 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

Improved Positive Electrode Materials for Li-ion Batteries  

E-Print Network [OSTI]

as a battery material due to its excellent thermal safetybattery system, including the safety attributes (both overcharge and thermalbattery electrodes, for example, have been observed during electrochemical cycling and thermal

Conry, Thomas Edward

2012-01-01T23:59:59.000Z

82

Development of High Energy Cathode for Li-ion Batteries  

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

the theoretical capacity of LiMnPO 4. * Flat voltage plateau at 4.1 V indicates the phase transition between LiMnPO 4 and MnPO 4 . * At 1C and 2C rate (PHEV constant output)...

83

TiSnSb a new efficient negative electrode for Li-ion batteries: mechanism investigations by operando-XRD and Mossbauer techniques  

E-Print Network [OSTI]

TiSnSb a new efficient negative electrode for Li-ion batteries: mechanism investigations We report the electrochemical study of TiSnSb towards Li, as a negative electrode for Li-ion batteries. TiSnSb can reversibly take up more than 5 lithiums per formula unit leading to reversible

Boyer, Edmond

84

LiMnPO4 Nanoplate Grown via Solid-State Reaction in Molten Hydrocarbon for Li-Ion Battery Cathode  

Science Journals Connector (OSTI)

(1-21) Following the initial work by Padhi et al. on the inductive effects of polyanions in a phospho-olivine LiFePO4 cathode with an increased Fe2+/3+ redox couple potential, olivine structures have become the focus of Li-ion battery cathodes in recent years. ... This process shows potential for further improvement using a simplified synthesis route to obtain fully electrochemically active LiMnPO4, which appears to be a promising cathode material for Li-ion batteries. ... The low surface activity of this material, compared to lithiated transition-metal oxides used as cathode materials for Li-ion batteries, is due to the relatively low basicity and nucleophilicity of the O atoms in the olivine compds. ...

Daiwon Choi; Donghai Wang; In-Tae Bae; Jie Xiao; Zimin Nie; Wei Wang; Vilayanur V. Viswanathan; Yun Jung Lee; Ji-Guang Zhang; Gordon L. Graff; Zhenguo Yang; Jun Liu

2010-07-19T23:59:59.000Z

85

Structural Complexity of Layered-spinel Composite Electrodes for Li-ion Batteries  

SciTech Connect (OSTI)

The complexity of layered-spinel yLi{sub 2}MnO{sub 3} {center_dot} (1-y)Li{sub 1+x}Mn{sub 2-x}O{sub 4} (Li:Mn = 1.2:1; 0 = x = 0.33; y = 0.45) composites synthesized at different temperatures has been investigated by a combination of x-ray diffraction (XRD), x-ray absorption spectroscopy (XAS), and nuclear magnetic resonance (NMR). While the layered component does not change substantially between samples, an evolution of the spinel component from a high to a low lithium excess phase has been traced with temperature by comparing with data for pure Li{sub 1+x}Mn{sub 2-x}O{sub 4}. The changes that occur to the structure of the spinel component and to the average oxidation state of the manganese ions within the composite structure as lithium is electrochemically removed in a battery have been monitored using these techniques, in some cases in situ. Our 6Li NMR results constitute the first direct observation of lithium removal from Li{sub 2}MnO{sub 3} and the formation of LiMnO{sub 2} upon lithium reinsertion.

Cabana, J.; Yang, X.; Johnson, C.S., Chung, K.-Y.; Yoon, W.-S.; Kang, S.-H.; Thackeray, M.M., Grey, C.P.

2010-08-01T23:59:59.000Z

86

Li2NiO2 as a Novel Cathode Additive for Overdischarge Protection of Li-Ion Batteries  

Science Journals Connector (OSTI)

As the fuel-cell voltage reaches the plateau region, the anode voltage is also saturated around 3.6 V (vs Li/Li+) where the anodic copper dissolution is estimated to occur. ... Numerical simulation for the discharge behaviors of batteries in series and/or parallel-connected battery pack ...

Hochun Lee; Sung-Kyun Chang; Eun-Young Goh; Jun-Yong Jeong; Jae Hyun Lee; Hyeong-Jin Kim; Jeong-Ju Cho; Seung-Tae Hong

2007-12-06T23:59:59.000Z

87

The predicted crystal structure of Li4C6O6, an organic cathode material for Li-ion batteries, from first-principles multi-level computational methods  

E-Print Network [OSTI]

The predicted crystal structure of Li4C6O6, an organic cathode material for Li-ion batteries, from details for the electrochemical properties of these organic electrodes (chemical potential for Li ion the optimum positions of Li ions intercalated within each C6O6 framework. 3. We then optimized each

Goddard III, William A.

88

Improved layered mixed transition metal oxides for Li-ion batteries  

SciTech Connect (OSTI)

Recent work in our laboratory has been directed towards development of mixed layered transition metal oxides with general composition Li[Ni, Co, M, Mn]O2 (M=Al, Ti) for Li ion battery cathodes. Compounds such as Li[Ni1/3Co1/3Mn1/3]O2 (often called NMCs) are currently being commercialized for use in consumer electronic batteries, but the high cobalt content makes them too expensive for vehicular applications such as electric vehicles (EV), plug-in hybrid electric vehicles (PHEVs), or hybrid electric vehicles (HEVs). To reduce materials costs, we have explored partial or full substitution of Co with Al, Ti, and Fe. Fe substitution generally decreases capacity and results in poorer rate and cycling behavior. Interestingly, low levels of substitution with Al or Ti improve aspects of performance with minimal impact on energy densities, for some formulations. High levels of Al substitution compromise specific capacity, however, so further improvements require that the Ni and Mn content be increased and Co correspondingly decreased. Low levels of Al or Ti substitution can then be used offset negative effects induced by the higher Ni content. The structural and electrochemical characterization of substituted NMCs is presented in this paper.

Doeff, Marca M.; Conry, Thomas; Wilcox, James

2010-03-05T23:59:59.000Z

89

A stand-alone wind power supply with a Li-ion battery energy storage system  

Science Journals Connector (OSTI)

Abstract The improved structure of stand-alone wind power system which is presented in this paper based on a doubly fed induction generator (DFIG) and permanent magnet synchronous machine (PMSM). A Li-ion battery energy storage system is used to compensate the inherent power fluctuations (excess or shortage) and to regulate the overall system operation based on a power management strategy. The modeling and the control of a DFIG for stand-alone power applications are detailed. However, the magnitude and frequency of the DFIG stator output voltage are controlled under variable mechanical speed. This task is ensured via the control of d and q components of the rotor flux by means of a back-to-back pulse width modulation (PWM) converter connected to the rotor side of the DFIG. The PMSM is coupled mechanically to the wind turbine and supplies a required power to the PWM converter in order to regulate the dc bus voltage to the desired value. In order to validate the proposed stand-alone wind power supply structure both a theoretical system analysis and a complete simulation of the overall wind energy conversion system (WECS) with Li-ion battery energy storage system is carried out to prove the performances of the control strategy.

Tedjani Mesbahi; Ahmed Ouari; Tarak Ghennam; El Madjid Berkouk; Nassim Rizoug; Nadhir Mesbahi; Moudrik Meradji

2014-01-01T23:59:59.000Z

90

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.

91

ESS 2012 Peer Review - Organic and Inorganic Solid Electrolytes for Li-ion Batteries - Nader Hagh, NEI Corporation  

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

Organic and Inorganic Solid Electrolytes for Li-ion Batteries Organic and Inorganic Solid Electrolytes for Li-ion Batteries Background & Objectives * Lithium ion batteries widely used in consumer applications Solvent leakage and flammability of conventional liquid electrolytes * Current solid state electrolytes suffer from low ionic conductivity, inferior rate capability, and interfacial instability * Objective of the program is to develop solid state organic and inorganic electrolyte that has enhanced ionic conductivity * PEO based polymer electrolyte has poor room ionic conductivity due to crystallinity * The current program develops a PEO based hybrid copolymer that disrupts crystallization and at the same time provides mechanical integrity Abstract: The use of a solid polymer electrolyte instead of the conventional liquid or gel electrolyte can drastically improve the safety

92

Nanostructured ion beam-modified Ge films for high capacity Li ion battery N. G. Rudawski, B. L. Darby, B. R. Yates, K. S. Jones, R. G. Elliman et al.  

E-Print Network [OSTI]

Nanostructured ion beam-modified Ge films for high capacity Li ion battery anodes N. G. Rudawski, B718 (2012) Thermal properties of the hybrid graphene-metal nano-micro-composites: Applications://apl.aip.org/authors #12;Nanostructured ion beam-modified Ge films for high capacity Li ion battery anodes N. G. Rudawski,1

Florida, University of

93

A rapid estimation and sensitivity analysis of parameters describing the behavior of commercial Li-ion batteries including thermal analysis  

Science Journals Connector (OSTI)

Abstract In this work, a methodology based on rigorous model fitting and sensitivity analysis is presented to determine the parameters describing the physicochemical behavior of commercial pouch Li-ion batteries of high-capacity (16Ah), utilized in electric vehicles. It is intended for a rapid estimation of the kinetic and transport parameters, state of charge and health of a Li-ion battery when chemical information is not available, or for a brand new system. A pseudo 2-D model comprised of different contributions reported in the literature is utilized to describe the mass, charge and thermal balances of the cell and porous electrodes; and adapted to the battery chemistry under study. The sensitivity analysis of key model parameters is conducted to determine confidence intervals, using Analysis of Variance (ANOVA) for non-linear models. Also individual multi-parametric sensitivity analysis is conducted to assess the impact of the model parameters on battery voltage. The battery is comprised of multiple cells in parallel containing carbon anodes and LiNi1/3Co1/3Mn1/3O2 (NMC) cathodes with maximum and cut-off voltages of 4.2 and 2.7V, respectively. Mass and charge transfer limitations during the discharge/charge of the battery are discussed as a function of State of Charge (SOC). A thermal analysis is also conducted to estimate the temperature rise on the surface of the battery. This modeling methodology can be extended to the analysis of other chemistry types of Li-ion batteries, as well as the evaluation of other material phenomena including capacity fade.

Jorge Vazquez-Arenas; Leonardo E. Gimenez; Michael Fowler; Taeyoung Han; Shih-ken Chen

2014-01-01T23:59:59.000Z

94

Divalent Iron Nitridophosphates: A New Class of Cathode Materials for Li-Ion Batteries  

Science Journals Connector (OSTI)

(4-6) Here we demonstrate the design of a battery cathode material incorporating N3 anions as a distinct structural building block. ... Lithium transition metal phosphates are of interest as storage cathodes for rechargeable Li batteries because of their high energy d., low raw materials cost, environmental friendliness and safety. ... The reversible specific capacities for the cathode and anode active materials were detd. ...

Jue Liu; Xiqian Yu; Enyuan Hu; Kyung-Wan Nam; Xiao-Qing Yang; Peter G. Khalifah

2013-09-18T23:59:59.000Z

95

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

96

Enhanced rate capability of LiMn0.9Mg0.1PO4 nanoplates by reduced graphene oxide/carbon double coating for Li-ion batteries  

E-Print Network [OSTI]

March 2014 Available online 12 March 2014 Keywords: Li-ion battery LiMnPO4 Reduced graphene oxide ChargeEnhanced rate capability of LiMn0.9Mg0.1PO4 nanoplates by reduced graphene oxide/carbon double coating for Li-ion batteries Sungun Wi a , Jaewon Kim a , Seunghoon Nam a , Joonhyeon Kang a , Sangheon

Park, Byungwoo

97

A Combustion Chemistry Analysis of Carbonate Solvents in Li-Ion Batteries  

SciTech Connect (OSTI)

Under abusive conditions Li-ion batteries can rupture, ejecting electrolyte and other flammable gases. In this paper we consider some of the thermochemical properties of these gases that will determine whether they ignite and how energetically they burn. We show that flames of carbonate solvents are fundamentally less energetic than those of conventional hydrocarbons. An example of this difference is given using a recently developed mechanism for dimethyl carbonate (DMC) combustion, where we show that a diffusion flame burning DMC has only half the peak energy release rate of an analogous propane flame. We find a significant variation among the carbonate solvents in the factors that are important to determining flammability, such as combustion enthalpy and vaporization enthalpy. This result suggests that thermochemical and kinetic factors might well be considered when choosing solvent mixtures.

Harris, S J; Timmons, A; Pitz, W J

2008-11-13T23:59:59.000Z

98

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...

99

Development and testing of 100-kW/ 1-minute Li-ion battery systems for energy storage applications.  

SciTech Connect (OSTI)

Two 100 kW min{sup -1} (1.67 kW h{sup -1}) Li-ion battery energy storage systems (BESS) are described. The systems include a high-power Li-ion battery and a 100 kW power conditioning system (PCS). The battery consists of 12 modules of 12 series-connected Saft Li-ion VL30P cells. The stored energy of the battery ranges from 1.67 to 14 kW h{sup -1} and has an operating voltage window of 515-405 V (dc). Two complete systems were designed, built and successfully passed factory acceptance testing after which each was deployed in a field demonstration. The first demonstration used the system to supplement distributed microturbine generation and to provide load following capability. The system was run at its rated power level for 3 min, which exceeded the battery design goal by a factor of 3. The second demonstration used another system as a stand-alone uninterrupted power supply (UPS). The system was available (online) for 1146 h and ran for over 2 min.

Doughty, Daniel Harvey; Clark, Nancy H.

2004-07-01T23:59:59.000Z

100

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

Note: This page contains sample records for the topic "li ion battery" 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

Low-Cost Graphite and Olivine-Based Materials for Li-Ion Batteries  

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

WORK Identify suitable graphite materials for anodes that meet the requirement for low cost and long cycle life. Fabricate half cells (Ligraphite) and Li-ion (graphiteolivine)...

102

Engineering study on TiSnSb-based composite negative electrode for Li-ion batteries  

Science Journals Connector (OSTI)

Abstract Micrometric TiSnSb is a promising negative electrode material for Li-ion batteries when formulated with carboxymethyl cellulose (CMC) binder and a mixture of carbon black and carbon nanofibers, and cycled in a fluoroethylene carbonate (FEC)-containing electrolyte. Here, other binder systems were evaluated, polyacrylic acid (PAAH) mixed with CMC, CMC in buffered solution at pH 3 and amylopectin. However CMC showed the better performance in terms of cycle life of the electrode. Whatever the binder, cycle life decreases with increasing the active mass loading, which is attributed to both the precipitation of liquid electrolyte degradation products and to the loss of electrical contacts within the composite electrode and with the current collector as a consequence of the active particles volume variations. Furthermore, calendaring the electrode unfortunately decreases the cycle life. The rate performance was studied as a function of the active mass loading and was shown to be determined by the electrode polarization resistance. Finally, full cells cycling tests with Li1Ni1/3Co1/3Mn1/3O2 at the positive electrode were done. 60% of the capacity is retained after 200 cycles at the surface capacity of 2.7mAhcm?2.

H.A. Wilhelm; C. Marino; A. Darwiche; P. Soudan; M. Morcrette; L. Monconduit; B. Lestriez

2015-01-01T23:59:59.000Z

103

Combined experimental and numerical study of thermal management of battery module consisting of multiple Li-ion cells  

Science Journals Connector (OSTI)

Abstract Lithium ion (Li-ion) batteries are promising power sources for hybrid powertrain systems, and the thermal management of batteries has been identified as a critical issue both for safety and efficiency concerns. This work studied thermal management of a Li-ion battery module both experimentally and computationally. A battery module consisting of multiple cells was fabricated and experimentally tested in a wind tunnel facility. Systematic tests were performed under various flow velocities, charging and discharging current, and module configuration. Computationally, a high-fidelity two dimensional computational fluid dynamics (CFD) model was developed to capture the detailed dynamics of thermal management of the cells. Temperature rise of cells and pressure measurements were recorded in the experiments, and compared with CFD model simulations. Reasonable agreement was obtained, confirming the validity of the model. The validated model was then applied to study the power consumption required by the thermal management system. The results obtained in this combined experimental and numerical study are expected to be valuable for the optimized design of battery modules and the development of reduced-order models.

Fan He; Xuesong Li; Lin Ma

2014-01-01T23:59:59.000Z

104

Three-phase model for the reversible lithiation/delithiation of SnO anodes in Li-ion batteries  

E-Print Network [OSTI]

Using first-principles calculations, we propose a microscopic model to explain the reversible lithiation/delithiation of tin-oxide anodes in lithium-ion batteries. When the irreversible regime ends, the anode grains consist of layers of Li-oxide separated by Sn bilayers. During the following reversible lithiation, the Li-oxide undergoes two phase transformations that give rise to a Li-enrichment of the oxide and the formation of a SnLi composite. The anode grain structure stays layered and ordered with an effective theoretical reversible capacity of 4.5 Li per Sn atom. The predicted anode volume expansion and voltage profile agree well with experiments, contrary to existing models.

Pedersen, Andreas; Luisier, Mathieu

2015-01-01T23:59:59.000Z

105

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

106

CoFe2O4-Graphene Nanocomposites Synthesized through An Ultrasonic Method with Enhanced Performances as Anode Materials for Li-ion Batteries  

Science Journals Connector (OSTI)

CoFe2O4-graphene nanosheets (CoFe2O4...-GNSs) were synthesized through an ultrasonic method, and their electrochemical performances as Li-ion battery electrode were improved by annealing processes. The...?1 even ...

Yinglin Xiao; Xiaomin Li; Jiantao Zai; Kaixue Wang; Yong Gong; Bo Li

2014-10-01T23:59:59.000Z

107

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...

108

Mssbauer Spectroscopy and New Composite Electrodes for Li-ion batteries  

Science Journals Connector (OSTI)

Lithium-ion batteries have become one of the most promising power sources for portable equipment because of their high specific energy and working voltage. Many studies have been devoted to negative electrodes...

Pierre-Emmanuel Lippens; Jean-Claude Jumas

2008-01-01T23:59:59.000Z

109

Cobalt Carbonate/ and Cobalt Oxide/Graphene Aerogel Composite Anodes for High Performance Li-Ion Batteries  

Science Journals Connector (OSTI)

Cobalt Carbonate/ and Cobalt Oxide/Graphene Aerogel Composite Anodes for High Performance Li-Ion Batteries ... (1, 2) Commercial LIBs use graphite as the anode material with a low theoretical specific capacity of 372 mAh g1, necessitating extensive research to develop substitute anode materials with higher energy/power densities for high performance LIBs to satisfy demanding applications like electric vehicles. ...

Mohammad Akbari Garakani; Sara Abouali; Biao Zhang; Curtis Alton Takagi; Zheng-Long Xu; Jian-qiu Huang; Jiaqiang Huang; Jang-Kyo Kim

2014-10-15T23:59:59.000Z

110

Nanoscale LiFePO4 and Li4Ti5O12 for High Rate Li-ion Batteries  

SciTech Connect (OSTI)

The electrochemical performances of nanoscale LiFePO4 and Li4Ti5O12 materials are described in this communication. The nanomaterials were synthesized by pyrolysis of an aerosol precursor. Both compositions required moderate heat-treatment to become electrochemically active. LiFePO4 nanoparticles were coated with a uniform, 2-4 nm thick carbon-coating using an organic precursor in the heat treatment step and showed high tap density of 1.24 g/cm3, in spite of 50-100 nm particle size and 2.9 wtpercent carbon content. Li4Ti5O12 nanoparticles were between 50-200 nm in size and showed tap density of 0.8 g/cm3. The nanomaterials were tested both in half cell configurations against Li-metal and also in LiFePO4/Li4Ti5O12 full cells. Nano-LiFePO4 showed high discharge rate capability with values of 150 and 138 mAh/g at C/25 and 5C, respectively, after constant C/25 charges. Nano-Li4Ti5O12 also showed high charge capability with values of 148 and 138 mAh/g at C/25 and 5C, respectively, after constant C/25 discharges; the discharge (lithiation) capability was comparatively slower. LiFePO4/Li4Ti5O12 full cells deliver charge/discharge capacity values of 150 and 122 mAh/g at C/5 and 5C, respectively.

Jaiswal, A.; Horne, C.R.; Chang, O.; Zhang, W.; Kong, W.; Wang, E.; Chern, T.; Doeff, M. M.

2009-08-04T23:59:59.000Z

111

Thermal Stability and Phase Transformation of Electrochemically Charged/Discharged LiMnPO4 Cathode for Li-Ion Battery  

SciTech Connect (OSTI)

Electrochemically active LiMnPO4 nanoplate at lithiated/delithiated state were subjected to thermal stability and phase transformation evaluate for safety as a cathode material for Li-ion battery. The phase transformation and oxygen evolution temperature on the delithiated MnPO4 were characterized using in-situ hot-stage X-ray diffraction (XRD), X-ray Photoelectron Spectroscopy (XPS), thermogravimetric - differential scanning calorimetry - mass spectroscopy (TGA-DSC-MS), transmission electron microscopy and scanning electron microscopy (SEM) - energy dispersive X-ray analysis (EDAX).

Choi, Daiwon; Xiao, Jie; Choi, Young Joon; Hardy, John S.; Vijayakumar, M.; Bhuvaneswari, M. S.; Liu, Jun; Xu, Wu; Wang, Wei; Yang, Zhenguo; Graff, Gordon L.; Zhang, Jiguang

2011-11-01T23:59:59.000Z

112

Formation Of The Spinel Phase In The Layered Composite Cathode Used In Li-Ion Batteries  

SciTech Connect (OSTI)

Pristine Li-rich layered cathodes, such as Li1.2Ni0.2Mn0.6O2 and Li1.2Ni0.1Mn0.525Co0.175O2, were identified to exist in two different structures: LiMO2 R-3m and Li2MO3 C2/m phases. Upon charge/discharge cycling, both phases gradually transform to the spinel structure. The transition from LiMO2 R-3m to spinel is accomplished through the migration of transition metal ions to the Li site without breaking down the lattice, leading to the formation of mosaic structured spinel grains within the parent particle. In contrast, transition from Li2MO3 C2/m to spinel involves removal of Li+ and O2-, which produces a large lattice strain and leads to the breakdown of the parent lattice and therefore the newly formed spinel grains show random orientation within the same particle. Cracks and pores were also noticed within some particles, which is believed to be the consequence of the breakdown of the lattice and vacancy condensation upon removal of lithium ions. The presently observed structure transition characteristics provide direct reasons for the observed gradual capacity loss and poor rate performance of the layered composite. Ultimately it also provides clues about how to improve the materials structure with potential improved performance.

Gu, Meng; Belharouak, Ilias; Zheng, Jianming; Wu, Huiming; Xiao, Jie; Genc, Arda; Amine, Khalil; Thevuthasan, Suntharampillai; Baer, Donald R.; Zhang, Jiguang; Browning, Nigel D.; Liu, Jun; Wang, Chong M.

2013-01-22T23:59:59.000Z

113

Thermal Stability of LiPF6 Salt and Li-ion Battery Electrolytes Containing LiPF6  

E-Print Network [OSTI]

like alcohol or cathode active material that may (or maya catalytic effect to cathode active material (e.g. LiCoO 2like alcohol or cathode active material that may (or may

Yang, Hui; Zhuang, Guorong V.; Ross Jr., Philip N.

2006-01-01T23:59:59.000Z

114

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

115

Preparation and performance characterization of polymer Li-ion batteries using gel poly(diacrylate) electrolyte prepared by in situ thermal polymerization  

Science Journals Connector (OSTI)

A gel polymer electrolyte (GPE) was prepared by in-situ thermal polymerization of 1,3-butanediol diacrylate (BDDA...?3Scm?1 at 20C. The MCMBLiCoO2 type polymer Li-ion batteries (PLIB) prepared using this in-...

L. X. Yuan; J. D. Piao; Y. L. Cao; H. X. Yang

2005-04-01T23:59:59.000Z

116

Second-Use Li-Ion Batteries to Aid Automotive and Utility Industries (Fact Sheet), NREL Highlights in Research & Development, NREL (National Renewable Energy Laboratory)  

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

Repurposing lithium-ion batteries at the end of useful life Repurposing lithium-ion batteries at the end of useful life in electric drive vehicles could eliminate owners' disposal concerns and offer low-cost energy storage for certain applications. Increasing the number of plug-in electric drive vehicles (PEVs) is one major strategy for reduc- ing the nation's oil imports and greenhouse gas emissions. However, the high up-front cost and end-of-service disposal concerns of their lithium-ion (Li-ion) batteries could impede the proliferation of such vehicles. Re-using Li-ion batteries after their useful automotive life has been proposed as a way to remedy both matters. In response, the National Renewable Energy Laboratory (NREL) and its partners are conducting research to identify, assess, and verify profitable

117

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 400C. For short heating periods, Mn2O3 impurity is observed, but disappears after longer heating times. The average particle size is in the range 28?m for powders calcined between 700 and 870C. 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 1M 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 126mAhg?1, respectively. The introduction of excess Li in LiMn2O4 apparently increases the capacity, and decreases significantly the rate of capacity degradation on chargedischarge cycling.

H.W Chan; J.G Duh; S.R Sheen

2003-01-01T23:59:59.000Z

118

First-Principles Study of Novel Conversion Reactions for High-Capacity Li-Ion Battery Anodes in the Li-Mg-B-N-H System  

SciTech Connect (OSTI)

Anodes for Li-ion batteries are primarily carbon-based due to their low cost and long cycle life. However, improvements to the Li capacity of carbon anodes, LiC{sub 6} in particular, are necessary to obtain a larger energy density. State-of-the-art light-metal hydrides for hydrogen storage applications often contain Li and involve reactions requiring Li transport, and light-metal ionic hydrides are candidates for novel conversion materials. Given a set of known solid-state and gas-phase reactants, we have determined the phase diagram in the Li-Mg-B-N-H system in the grand canonical ensemble, as a function of lithium chemical potential. We present computational results for several new conversion reactions with capacities between 2400 and 4000 mAh g{sup -1} that are thermodynamically favorable and that do not involve gas evolution. We provide experimental evidence for the reaction pathway on delithiation for the compound Li{sub 4}BN{sub 3}H{sub 10}. While the predicted reactions involve multiple steps, the maximum volume increase for these materials on lithium insertion is significantly smaller than that for Si.

Mason, T.H.; Graetz, J.; Liu, X.; Hong, J.; Majzoub, E.H.

2011-07-28T23:59:59.000Z

119

Probing the Degradation Mechanisms in Electrolyte Solutions for Li-ion Batteries by In-Situ Transmission Electron Microscopy  

SciTech Connect (OSTI)

One of the goals in the development of new battery technologies is to find new electrolytes with increased electrochemical stability. In-situ (scanning) transmission electron microscopy ((S)TEM) using an electrochemical fluid cell provides the ability to rapidly and directly characterize electrode/electrolyte interfacial reactions under battery relevant electrochemical conditions. Furthermore, as the electron beam itself causes a localized electrochemical reaction when it interacts with the electrolyte, the breakdown products that occur during the first stages of battery operation can potentially be simulated and characterized using a straightforward in-situ liquid stage (without electrochemical biasing capabilities). In this paper, we have studied the breakdown of a range of inorganic/salt complexes that are used in state-of-the-art Li-ion battery systems. The results of the in-situ (S)TEM experiments matches with previous stability tests performed during battery operation and the breakdown products and mechanisms are also consistent with known mechanisms. This analysis indicates that in-situ liquid stage (S)TEM observations can be used to directly test new electrolyte designs and provide structural insights into the origin of the solid electrolyte interphase (SEI) formation mechanism.

Abellan Baeza, Patricia; Mehdi, Beata L.; Parent, Lucas R.; Gu, Meng; Park, Chiwoo; Xu, Wu; Zhang, Yaohui; Arslan, Ilke; Zhang, Jiguang; Wang, Chong M.; Evans, James E.; Browning, Nigel D.

2014-02-21T23:59:59.000Z

120

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 "li ion battery" 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

Microwave Plasma Chemical Vapor Deposition of Carbon Coatings on LiNi1/3Co1/3Mn1/3O2 for Li-Ion Battery Composite Cathodes  

E-Print Network [OSTI]

O 2 for Li-ion Battery Composite Cathodes Marek L. MarcinekRaman spectroscopy. The composite LiNi 1/3 Co 1/3 Mn 1/3 O 2electronic contact within the composite cathode and does not

Doeff, M.M.

2012-01-01T23:59:59.000Z

122

Thermal Modeling and Effects of Electrode Configuration on Thermal Behaviour of a LiFePO4 Battery  

Science Journals Connector (OSTI)

Li-ion battery has great application prospects on electric vehicles ... etc. For the performance of Li-ion battery is closely related to its operating temperature, the battery thermal management technique is cons...

Cheng Ruan; Kun Diao; Huajie Chen; Yan Zhou

2013-01-01T23:59:59.000Z

123

Thin, Flexible Secondary Li-Ion Paper Liangbing Hu,  

E-Print Network [OSTI]

Thin, Flexible Secondary Li-Ion Paper Batteries Liangbing Hu, Hui Wu, Fabio La Mantia, Yuan Yang, secondary Li-ion batteries are key components in por- table electronics due to their high power and energy integrated all of the components of a Li-ion battery into a single sheet of paper with a simple lamination

Cui, Yi

124

Making Li-air batteries rechargeable: material challenges. |...  

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

Li-air batteries rechargeable: material challenges. Making Li-air batteries rechargeable: material challenges. Abstract: A Li-air battery could potentially provide three to five...

125

Thermal processes in the systems with Li-battery cathode materials and LiPF6 -based organic solutions  

Science Journals Connector (OSTI)

Thermodynamic instability of positive electrodes (cathodes) in Li-ion batteries in humid air and battery solutions results in capacity fading and batteries degradation, especially at elevated temperatures. In thi...

Ortal Haik; Francis Susai Amalraj

2014-08-01T23:59:59.000Z

126

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 1030 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

127

Three-dimensionally macroporous graphene-supported Fe3O4 composite as anode material for Li-ion batteries with long cycling life and ultrahigh rate capability  

Science Journals Connector (OSTI)

Fe3O4 is an attractive conversion reaction-based anode material with high theoretical capacity (928mAhg?1...). However, the poor cycling and rate performance hinder its applications in Li-ion batteries. In thi...

Delong Ma; Shuang Yuan; Zhanyi Cao

2014-06-01T23:59:59.000Z

128

Li Storage and Impedance Spectroscopy Studies on Co3O4, CoO, and CoN for Li-Ion Batteries  

Science Journals Connector (OSTI)

Urea act as an oxidising fuel. ... vehicles (EV) or for large-scale batteries for electricity power storage, has made lithium ion rechargeable battery development into a growth area which has gained high momentum for its research activities. ...

M. V. Reddy; Gundlapalli Prithvi; Kian Ping Loh; B. V. R. Chowdari

2013-12-10T23:59:59.000Z

129

Lithium Ion Batteries DOI: 10.1002/anie.201103163  

E-Print Network [OSTI]

Lithium Ion Batteries DOI: 10.1002/anie.201103163 LiMn1?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

130

Quadruple Adaptive Observer of the Core Temperature in Cylindrical Li-ion Batteries and their Health Monitoring  

E-Print Network [OSTI]

only the surface temperature of the battery can be measured, a thermal model is needed to estimate identification scheme is designed for a cylindrical lithium ion battery thermal model, by which the parameters-line parameterization methodology and the closed loop architecture. A linear battery thermal model is explored first

Stefanopoulou, Anna

131

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 coreshell 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 coreshell 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

132

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

133

Batteries: Overview of Battery Cathodes  

E-Print Network [OSTI]

insertion reactions. For Li-ion battery materials, it refersis widespread throughout the Li-ion battery literature, thisthe chemistry of the Li-ion battery is not fixed, unlike the

Doeff, Marca M

2011-01-01T23:59:59.000Z

134

LiFePO4/CA cathode nanocomposite with 3D conductive network structure for Li-ion battery  

Science Journals Connector (OSTI)

A novel LiFePO4/Carbon aerogel (LFP/CA) nanocomposite with 3D conductive network structure was synthesized by using carbon aerogels as both template and conductive framework, and subsequently wet impregnating LiF...

Qiong Jiang; Yunlong Xu; Chongjun Zhao

2012-04-01T23:59:59.000Z

135

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

136

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 solgel 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 3.04.5V, the graphene modified LiVPO4F/C delivers a reversible discharge capacity of 151.6 (nearly to its theoretical capability of 156mAhg?1) and 147.8mAhg?1 at 0.1 and 0.5C, respectively. It also achieves an improved cyclability with capacity retention ratio of 91.4% after 300cycles at a higher rate of 10C. 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

137

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

138

Passivation of Aluminum in Lithium-ion Battery Electrolytes with LiBOB  

E-Print Network [OSTI]

pitting corrosion of aluminum in 1M LiTFSI. The protectiveAnodic Polarization of Aluminum in 1:1 EC+DMC with 1M LiBOBdeposited thin film of aluminum in 1:1 EC+DMC with 1M LiBOB.

Zhang, Xueyuan; Devine, Thomas M.

2008-01-01T23:59:59.000Z

139

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 (3060nm) 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 (189.8mAhg?1 at 0.1C), superior cycling stability (111.8mAhg?1 at 0.1C, 112.6mAhg?1 at 5C, and 103.4mAhg?1 at 10C after 80 cycles) and better C-rate capability (90.8mAhg?1 at 10C), 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

140

Develop high energy high power Li-ion battery cathode materials : a first principles computational study  

E-Print Network [OSTI]

a perfect spinel phase, only transition metal ions reside onspinel phase transformation, in which transition metal ionJ-T ions, therefore low temperature phase transition similar

Xu, Bo; Xu, Bo

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "li ion battery" 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

Passivation of Aluminum in Lithium-ion Battery Electrolytes with LiBOB  

E-Print Network [OSTI]

much greater thermal The passivation of aluminum in batterybattery electrolytes, LiPF 6 does have some shortcomings. In particular, the thermal

Zhang, Xueyuan; Devine, Thomas M.

2008-01-01T23:59:59.000Z

142

Selection of Conductive Additives in Li-Ion Battery Cathodes A Numerical Study  

E-Print Network [OSTI]

- capacity LiNi1-xCoxO2 to lower cost LiNi1-xCoxO2. The addition of conductive additives to cathode materials significantly improve overall conductivity. Percolation was achieved for the volume fraction of active material particulate system. Neither surface nor bulk modifications of active-material particle conductivities seem

Sastry, Ann Marie

143

Reversible Three-Electron Redox Behaviors of FeF3 Nanocrystals as High-Capacity Cathode-Active Materials for Li-Ion Batteries  

Science Journals Connector (OSTI)

Reversible Three-Electron Redox Behaviors of FeF3 Nanocrystals as High-Capacity Cathode-Active Materials for Li-Ion Batteries ... Three types of FeF3 nanocrystals were synthesized by different chemical routes and investigated as a cathode-active material for rechargeable lithium batteries. ... (1-3) Though many types of metal oxides and phosphates have been tested as alternative cathode materials,(4, 5) no real breakthrough has been achieved in capacity, especially for intercalation cathodes, the capacity-determining electrode in the present LIBs systems. ...

Ting Li; Lei Li; Yu L. Cao; Xin P. Ai; Han X. Yang

2010-01-28T23:59:59.000Z

144

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

145

In situ deposition method preparation of Li4Ti5O12SnO2 composite materials for lithium ion batteries  

Science Journals Connector (OSTI)

A Li4Ti5O12SnO2 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 Li4Ti5O12SnO2 composite material was investigated and discussed. The results showed that Li4Ti5O12SnO2 (5%) has the best cycling behavior among all the samples. At a current rate of 0.5mAcm?2, the material delivered a discharge capacity of 189mAhg?1 after 42 cycles. Electrochemical results indicated that the Li4Ti5O12SnO2 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

146

Develop high energy high power Li-ion battery cathode materials : a first principles computational study  

E-Print Network [OSTI]

surface phase structural change, the materials thereforerelated phase/structural change nears the material surface.material voltage and change of lattice parameters versus Li concentration. In manganese spinel, phase

Xu, Bo; Xu, Bo

2012-01-01T23:59:59.000Z

147

Electrochemical properties of Li ion polymer battery with gel polymer electrolyte based on polyurethane  

Science Journals Connector (OSTI)

Gel polymer electrolyte (GPE) was prepared using polyurethane acrylate as polymer host and its performance was evaluated. LiCoO2/GPE/graphite cells were prepared and their electrochemical performance as a functio...

H-S. Kim; G-Y. Choi; S-I. Moon; S-P. Kim

2003-06-01T23:59:59.000Z

148

Graphene supported Li2SnO3 as anode material for lithium-ion batteries  

Science Journals Connector (OSTI)

The graphene supported Li2SnO3 composites were prepared via a deoxidation technique. The structure, morphology and electrochemical properties of the composites were detected by means of XRD, SEM, TEM, Raman, TGA ...

Yang Zhao; Ying Huang; Qiufen Wang; XiaoYa Wang; Meng Zong

2013-09-01T23:59:59.000Z

149

GBL-based electrolyte for Li-ion battery: thermal and electrochemical performance  

Science Journals Connector (OSTI)

Thermal stability, flammability, and electrochemical performances of...4] have been examined in comparison with contemporary (EC/EMC, 1:3vol.%, 1M LiPF6...) electrolyte by DSC, accelerating rate calorimetry (AR...

Dmitry Belov; Deng-Tswen Shieh

2012-02-01T23:59:59.000Z

150

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

151

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), 800C 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, Abdlhamit, E-mail: halil@erciyes.edu.tr; zdemir, Burcu, E-mail: halil@erciyes.edu.tr; zdemir, 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

152

Effect of tab design on large-format Li-ion cell performance , Gang Luo b  

E-Print Network [OSTI]

Model a b s t r a c t Large-format Li-ion batteries are essential for vehicle and grid energy storage. Today, scale-up of Li-ion cells has not maximized the potential of available battery materials, leading a sustainable energy future. How to unlock the potential of existing Li battery materials and scale up Li-ion

153

Thermal management optimization of an air-cooled Li-ion battery module using pin-fin heat sinks for hybrid electric vehicles  

Science Journals Connector (OSTI)

Abstract Three dimensional transient thermal analysis of an air-cooled module that contains prismatic Li-ion cells next to a special kind of aluminum pin fin heat sink whose heights of pin fins increase linearly through the width of the channel in air flow direction was studied for thermal management of Lithium-ion battery pack. The effects of pin fins arrangements, discharge rates, inlet air flow velocities, and inlet air temperatures on the battery were investigated. The results showed that despite of heat sinks with uniform pin fin heights that increase the standard deviation of the temperature field, using this kind of pin fin heat sink compare to the heat sink without pin fins not only decreases the bulk temperature inside the battery, but also decreases the standard deviation of the temperature field inside the battery as well. Increasing the inlet air temperature leads to decreasing the standard deviation of the temperature field while increases the maximum temperature of the battery. Furthermore, increasing the inlet air velocity first increases the standard deviation of the temperature field till reaches to the maximum point, and after that decreases. Also, increasing the inlet air velocity leads to decrease in the maximum temperature of the battery.

Shahabeddin K. Mohammadian; Yuwen Zhang

2015-01-01T23:59:59.000Z

154

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

155

Single Nanorod Devices for Battery Diagnostics: A Case Study on LiMn2O4  

E-Print Network [OSTI]

correlate well with the better cycling performance of Al-doped LiMn2O4 in our Li-ion battery tests: LiAl0Single Nanorod Devices for Battery Diagnostics: A Case Study on LiMn2O4 Yuan Yang, Chong Xie nanostructure devices as a powerful new diagnostic tool for batteries with LiMn2O4 nanorod materials

Cui, Yi

156

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

157

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

158

Cahn-Hilliard Reaction Model for Isotropic Li-ion Battery Particles  

E-Print Network [OSTI]

Using the recently developed Cahn-Hilliard reaction (CHR) theory, we present a simple mathematical model of the transition from solid-solution radial diffusion to two-phase shrinking-core dynamics during ion intercalation ...

Zeng, Yi

159

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

160

Nanoscale Phase Separation, Cation Ordering, and Surface Oxygen Chemistry in Pristine Li1.2Ni0.2Mn0.6O2 for Li-Ion Batteries  

SciTech Connect (OSTI)

Li-rich layered material Li1.2Ni0.2Mn0.6O2 possesses high voltage and high specific capacity, which makes it an attractive candidate for the transportation industry and sustainable energy storage systems. The rechargeable capacity of the Li-ion battery is linked largely to the structural stability of the cathode materials during the charge-discharge cycles. However, the structure and cation distribution in pristine (un-cycled) Li1.2Ni0.2Mn0.6O2 have not yet been fully characterized. Using a combination of aberration-corrected scanning/transmission electron microscopy, X-ray dispersive energy spectroscopy (XEDS), electron energy loss spectroscopy (EELS), and complementary multislice image simulation, we have probed the crystal structure, cation/anion distribution, and electronic structure of Li1.2Ni0.2Mn0.6O2 nanoparticle. We discovered that the electronic structure and valence state of transition metal ions show significant variations, which have been identified to be attributed to the oxygen deficiency near the particle surfaces. Characterization of the nanoscale phase separation and cation ordering in the pristine material are critical for understanding the capacity and voltage fading of this material for battery application.

Gu, Meng; Genc, Arda; Belharouak, Ilias; Wang, Dapeng; Amine, Khalil; Thevuthasan, Suntharampillai; Baer, Donald R.; Zhang, Jiguang; Browning, Nigel D.; Liu, Jun; Wang, Chong M.

2013-05-14T23:59:59.000Z

Note: This page contains sample records for the topic "li ion battery" 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

Degradation of Li/S Battery Electrodes Studied Using X-ray Phase Contrast Tomography  

E-Print Network [OSTI]

the Li-ion battery market. This can be explained by their high energy density, high operating voltage1 Degradation of Li/S Battery Electrodes Studied Using X-ray Phase Contrast Tomography L. Zielkea. Zengerlea,f and S. Thielea,g Lithium/sulphur batteries are promising candidates for future energy storage

Schmidt, Volker

162

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 200nm 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

163

Engineering Recently, we created the first Li-ion electrochemical cell  

E-Print Network [OSTI]

characterization of Li-ion battery materials. In this presentation, I'll first review our latest progress of using for understanding important processes in Li-ion batteries. For example, liquid cells are required in order impact on the design of Li-ion batteries. Finally I will discuss outstanding challenging issues

164

Amorphous Zn?GeO? Nanoparticles as Anodes with High Reversible Capacity and Long Cycling Life for Li-ion Batteries  

SciTech Connect (OSTI)

Amorphous and crystalline Zn?GeO? nanoparticles were prepared and characterized as anode materials for Li-ion batteries. A higher reversible specific capacity of 1250 mAh/g after 500 cycles and excellent rate capability were obtained for amorphous Zn?GeO? nanoparticles, compared to that of crystalline Zn?GeO? nanoparticles. Small particle size, amorphous phase and incorporation of zinc and oxygen contribute synergetically to the improved performance by effectively mitigating the huge volume variations during lithiation and delithiation process.

Yi, Ran; Feng, Jinkui; Lv, Dongping; Gordin, Mikhail; Chen, Shuru; Choi, Daiwon; Wang, Donghai

2013-07-30T23:59:59.000Z

165

Ambient Operation of Li/Air Batteries  

SciTech Connect (OSTI)

In this work, Li/air batteries based on nonaqueous electrolytes were investigated in ambient conditions (with an oxygen partial pressure of 0.21 atm and relative humidity of ~20%). A heat-sealable polymer membrane was used as both an oxygen-diffusion membrane and as a moisture barrier for Li/air batteries. The membrane also can minimize the evaporation of the electrolyte from the batteries. Li/air batteries with this membrane can operate in ambient conditions for more than one month with a specific energy of 362 Wh kg-1, based on the total weight of the battery including its packaging. Among various carbon sources used in this work, Li/air batteries using Ketjenblack (KB) carbon-based air electrodes exhibited the highest specific energy. However, KB-based air electrodes expanded significantly and absorbed much more electrolyte than electrodes made from other carbon sources. The weight distribution of a typical Li/air battery using the KB-based air electrode was dominated by the electrolyte (~70%). Lithium-metal anodes and KB-carbon anodes account for only 5.12% and 5.78% of the battery weight, respectively. We also found that only ~ 20% of the mesopore volume of the air electrode was occupied by reaction products after discharge. To further improve the specific energy of the Li/air batteries, the microstructure of the carbon electrode needs to be further improved to absorb much less electrolyte while still holding significant amounts of reaction products

Zhang, Jiguang; Wang, Deyu; Xu, Wu; Xiao, Jie; Williford, Ralph E.

2010-07-01T23:59:59.000Z

166

Flexographically Printed Rechargeable Zinc-based Battery for Grid Energy Storage  

E-Print Network [OSTI]

the rechargeable battery industry. Li-ion batteries rapidlyLi-ion chemistry. For grid storage applications, several other rechargeable batteryLi-ion batteries, because cadmium is highly toxic. In 1991, lithium-ion battery

Wang, Zuoqian

2013-01-01T23:59:59.000Z

167

Dispelling a Misconception About Mg-Ion Batteries  

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

One promising alternative would be a battery based on a multivalent ion, such as magnesium (Mg). Whereas a Li-ion with a charge of +1 provides only a single electron for an...

168

Cr, N-Codoped TiO2 Mesoporous Microspheres for Li-ion Rechargeable Batteries with Enhanced Electrochemical Performance  

SciTech Connect (OSTI)

Cr,N-codoped TiO2 mesoporous microspheres synthesized using hydrothermal and subsequent nitridation treatment, exhibited higher solubility of nitrogen, and improved electrical conductivity than N-doped TiO2, as anode for Lithium-ion rechargeable batteries, which led to improving charge-discharge capacity at 0.1 C and twice higher rate capability compared to that of nitrogen-doped TiO2 mesoporous microsphere at 10 C

Bi, Zhonghe [ORNL] [ORNL; Paranthaman, Mariappan Parans [ORNL] [ORNL; Guo, Bingkun [ORNL] [ORNL; Unocic, Raymond R [ORNL] [ORNL; Meyer III, Harry M [ORNL] [ORNL; Bridges, Craig A [ORNL] [ORNL; Sun, Xiao-Guang [ORNL] [ORNL; Dai, Sheng [ORNL] [ORNL

2014-01-01T23:59:59.000Z

169

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

170

Effects of Nonaqueous Electrolytes on Primary Li-Air Batteries  

SciTech Connect (OSTI)

The effects of nonaqueous electrolytes on the performance of primary Li-air batteries operated in dry air environment have been investigated. Organic solvents with low volatility and low moisture absorption are necessary to minimize the change of electrolyte compositions and the reaction between Li anode and water during the discharge process. The polarity of aprotic solvents outweighs the viscosity, ion conductivity and oxygen solubility on the performance of Li-air batteries once these latter properties attain certain reasonable level, because the solvent polarity significantly affects the number of tri-phase regions formed by oxygen, electrolyte, and active carbons (with catalyst) in the air electrode. The most feasible electrolyte formulation is the system of LiTFSI in PC/EC mixtures, whose performance is relatively insensitive to PC/EC ratio and salt concentration. The quantity of such electrolyte added to a Li-air cell has notably effects on the discharge performance of the Li-air battery as well, and a maximum in capacity is observed as a function of electrolyte amount. The coordination effect from the additives or co-solvents [tris(pentafluorophenyl)borane and crown ethers in this study] also greatly affects the discharge performance of a Li-air battery.

Xu, Wu; Xiao, Jie; Wang, Deyu; Zhang, Jian; Zhang, Jiguang

2010-06-14T23:59:59.000Z

171

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. ... Lithiumsulfur (LiS) batteries with a high theoretical energy density of ?2500 Wh kg1 are considered as one promising rechargeable battery chemistry for next-generation energy storage. ...

Arumugam Manthiram

2011-01-10T23:59:59.000Z

172

Effect of fuel rate and annealing process of LiFePO{sub 4} cathode material for Li-ion batteries synthesized by flame spray pyrolysis method  

SciTech Connect (OSTI)

In this study the effect of fuel rate and annealing on particle formation of LiFePO{sub 4} as battery cathode using flame spray pyrolysis method was investigated numerically and experimentally. Numerical study was done using ANSYS FLUENT program. In experimentally, LiFePO{sub 4} was synthesized from inorganic aqueous solution followed by annealing. LPG was used as fuel and air was used as oxidizer and carrier gas. Annealing process attempted in inert atmosphere at 700C for 240 min. Numerical result showed that the increase of fuel rate caused the increase of flame temperature. Microscopic observation using Scanning Electron Microscopy (SEM) revealed that all particles have sphere and polydisperse. Increasing fuel rate caused decreasing particle size and increasing particles crystallinity. This phenomenon attributed to the flame temperature. However, all produced particles still have more amorphous phase. Therefore, annealing needed to increase particles crystallinity. Fourier Transform Infrared (FTIR) analysis showed that all particles have PO4 function group. Increasing fuel rate led to the increase of infrared spectrum absorption corresponding to the increase of particles crystallinity. This result indicated that phosphate group vibrated easily in crystalline phase. From Electrochemical Impedance Spectroscopy (EIS) analysis, annealing can cause the increase of Li{sup +} diffusivity. The diffusivity coefficient of without and with annealing particles were 6.8439910{sup ?10} and 8.5988810{sup ?10} cm{sup 2} s{sup ?1}, respectively.

Halim, Abdul; Setyawan, Heru; Machmudah, Siti; Nurtono, Tantular; Winardi, Sugeng [Chemical Engineering, Sepuluh Nopember Institute of Technology, Kampus Sukolilo Surabaya Indonesia 60111 (Indonesia)

2014-02-24T23:59:59.000Z

173

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

174

Binder-free Ge-three dimensional graphene electrodes for high-rate capacity Li-ion batteries  

SciTech Connect (OSTI)

A binder-free, high-rate Ge-three dimensional (3D) graphene composite was synthesized by directly depositing Ge film atop 3D graphene grown by microwave plasma chemical vapor deposition on Ni substrate. The Ge-3D graphene structure demonstrates excellent electrochemical performance as a lithium ion battery (LIB) anode with a reversible capacity of 1140 mAh g{sup ?1} at 1/3C over 100 cycles and 835 mAh g{sup ?1} at 8C after 60 cycles, and significantly a discharge capacity of 186 mAh g{sup ?1} was still achieved at 32C. The high capacity and outstanding stability of the Ge-3D graphene composite propose it as a promising electrode in high-performance thin film LIBs.

Wang, C. D.; Chui, Y. S.; Chen, X. F., E-mail: xianfeng.chen@cityu.edu.hk, E-mail: apwjzh@cityu.edu.hk; Zhang, W. J., E-mail: xianfeng.chen@cityu.edu.hk, E-mail: apwjzh@cityu.edu.hk [Center of Super-Diamond and Advanced Films (COSDAF) and Department of Physics and Materials Science, City University of Hong Kong, Hong Kong (China); Li, Y. [Center of Super-Diamond and Advanced Films (COSDAF) and Department of Physics and Materials Science, City University of Hong Kong, Hong Kong (China) [Center of Super-Diamond and Advanced Films (COSDAF) and Department of Physics and Materials Science, City University of Hong Kong, Hong Kong (China); Department of Polymer Science and Engineering, Soochow University, Suzhou 215123 (China)

2013-12-16T23:59:59.000Z

175

Binder-free Ge-three dimensional graphene electrodes for high-rate capacity Li-ion batteries  

Science Journals Connector (OSTI)

A binder-free high-rate Ge-three dimensional (3D) graphene composite was synthesized by directly depositing Ge film atop 3D graphene grown by microwave plasma chemical vapor deposition on Ni substrate. The Ge-3D graphene structure demonstrates excellent electrochemical performance as a lithium ion battery (LIB) anode with a reversible capacity of 1140 mAh g?1 at 1/3C over 100 cycles and 835 mAh g?1 at 8C after 60 cycles and significantly a discharge capacity of 186 mAh g?1 was still achieved at 32C. The high capacity and outstanding stability of the Ge-3D graphene composite propose it as a promising electrode in high-performance thin film LIBs.

C. D. Wang; Y. S. Chui; Y. Li; X. F. Chen; W. J. Zhang

2013-01-01T23:59:59.000Z

176

Conduction in Multiphase ParticulateFibrous Networks Simulations and Experiments on Li-ion Anodes  

E-Print Network [OSTI]

promising Li-ion battery technologies incorporate nanoarchitectured carbon networks, typically in the form electronically February 7, 2003. Several promising Li-ion battery technologies incorporate nanoarchitecturedConduction in Multiphase Particulate?Fibrous Networks Simulations and Experiments on Li-ion Anodes

Sastry, Ann Marie

177

Rate-dependent morphology of Li2O2 growth in Li-O2 batteries  

E-Print Network [OSTI]

Compact solid discharge products enable energy storage devices with high gravimetric and volumetric energy densities, but solid deposits on active surfaces can disturb charge transport and induce mechanical stress. In this Letter we develop a nanoscale continuum model for the growth of Li2O2 crystals in lithium-oxygen batteries with organic electrolytes, based on a theory of electrochemical non-equilibrium thermodynamics originally applied to Li-ion batteries. As in the case of lithium insertion in phase-separating LiFePO4 nanoparticles, the theory predicts a transition from complex to uniform morphologies of Li2O2 with increasing current. Discrete particle growth at low discharge rates becomes suppressed at high rates, resulting in a film of electronically insulating Li2O2 that limits cell performance. We predict that the transition between these surface growth modes occurs at current densities close to the exchange current density of the cathode reaction, consistent with experimental observations.

Horstmann, B; Mitchell, R; Bessler, W G; Shao-Horn, Y; Bazant, M Z

2013-01-01T23:59:59.000Z

178

Microwave Plasma Chemical Vapor Deposition of Carbon Coatings on LiNi1/3Co1/3Mn1/3O2 for Li-Ion Battery Composite Cathodes  

SciTech Connect (OSTI)

In this paper, we report results of a novel synthesis method of thin film conductive carbon coatings on LiNi{sub 1/3}Co{sub 1/3}Mn{sub 1/3}O{sub 2} cathode active material powders for lithium-ion batteries. Thin layers of graphitic carbon were produced from a solid organic precursor, anthracene, by a one-step microwave plasma chemical vapor deposition (MPCVD) method. The structure and morphology of the carbon coatings were examined using SEM, TEM, and Raman spectroscopy. The composite LiNi{sub 1/3}Co{sub 1/3}Mn{sub 1/3}O{sub 2} electrodes were electrochemically tested in lithium half coin cells. The composite cathodes made of the carbon-coated LiNi{sub 1/3}Co{sub 1/3}Mn{sub 1/3}O{sub 2} powder showed superior electrochemical performance and increased capacity compared to standard composite LiNi{sub 1/3}Co{sub 1/3}Mn{sub 1/3}O{sub 2} electrodes.

Doeff, M.M.; Kostecki, R.; Marcinek, M.; Wilcoc, J.D.

2008-12-10T23:59:59.000Z

179

Block copolymer electrolytes for lithium batteries  

E-Print Network [OSTI]

interface in the Li-ion battery. Electrochimica Acta 50,K. The role of Li-ion battery electrolyte reactivity inK. The role of Li-ion battery electrolyte reactivity in

Hudson, William Rodgers

2011-01-01T23:59:59.000Z

180

Making Li-air batteries rechargeable: material challenges  

SciTech Connect (OSTI)

A Li-air battery could potentially provide three to five times higher energy density/specific energy than conventional batteries, thus enable the driving range of an electric vehicle comparable to a gasoline vehicle. However, making Li-air batteries rechargeable presents significant challenges, mostly related with materials. Herein, we discuss the key factors that influence the rechargeability of Li-air batteries with a focus on nonaqueous system. The status and materials challenges for nonaqueous rechargeable Li-air batteries are reviewed. These include electrolytes, cathode (electocatalysts), lithium metal anodes, and oxygen-selective membranes (oxygen supply from air). The perspective of rechargeable Li-air batteries is provided.

Shao, Yuyan; Ding, Fei; Xiao, Jie; Zhang, Jian; Xu, Wu; Park, Seh Kyu; Zhang, Jiguang; Wang, Yong; Liu, Jun

2013-02-25T23:59:59.000Z

Note: This page contains sample records for the topic "li ion battery" 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

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

182

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

183

Mixed Salts of LiTFSI and LiBOB for Stable LiFePO4-Based Batteries...  

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

Mixed Salts of LiTFSI and LiBOB for Stable LiFePO4-Based Batteries at Elevated Temperatures. Mixed Salts of LiTFSI and LiBOB for Stable LiFePO4-Based Batteries at Elevated...

184

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

185

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)24H2O, Sigma Aldrich...

Reginald E. Rogers; Garry M. Clarke

2013-03-01T23:59:59.000Z

186

LiMnPO4 Nanoplate Grown via Solid-State Reaction in Molten Hydrocarbon for Li-ion Battery Cathode  

SciTech Connect (OSTI)

Electrochemically active LiMnPO4 nanoplates have been synthesized via novel single step solid state reaction in molten hydrocarbon. The LiMnPO4 prepared show unique porous nanoplate shape ~50nm in thickness with highly preferred crystallographic orientation. The reversible cycling of carbon coated LiMnPO4 show flat potential at 4.1 V vs. Li with specific capacity reaching up to 168mAh/g and excellent cycling performance using only galvanostatic charging / discharging mode.

Choi, Daiwon; Wang, Donghai; Bae, In-Tae; Xiao, Jie; Nie, Zimin; Wang, Wei; Viswanathan, Vilayanur V.; Lee, Yun Jung; Zhang, Jiguang; Graff, Gordon L.; Yang, Zhenguo; Liu, Jun

2010-08-11T23:59:59.000Z

187

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 solgel 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

188

Characterization of Li-rich xLi2MnO3(1?x)Li[MnyNizCo1?y?z]O2 as cathode active materials for Li-ion batteries  

Science Journals Connector (OSTI)

Abstract We have investigated the crystallographical, morphological, and electrochemical behaviors of synthesized four different compositions of xLi2MnO3(1?x)Li[MnyNizCo1?y?z]O2 cathode active materials using X-ray diffractometer (XRD), field emission scanning electron microscope (FE-SEM), and galvanostatic cycler. The four different compositions of cathode active materials demonstratea commonly angular shape of primary particles, but agglomerated spherical shape in appearance. All the attempted compositions of xLi2MnO3(1?x)Li[MnyNizCo1?y?z]O2 cathodes deliver a specific discharge capacity of between 220 and 242mAh/g at room temperature when cycled between 2.5 and 4.6V versus Li/Li+ at C/10 rate.

Yong Nam Jo; K. Prasanna; Suk Joon Park; Chang Woo Lee

2013-01-01T23:59:59.000Z

189

Journal of Power Sources 126 (2004) 193202 Li-ion microbatteries generated by a laser direct-write method  

E-Print Network [OSTI]

to fabricate Li-ion microbatteries. The battery electrodes are made by the laser-induced forward transfer. Keywords: Microbattery; Battery; Li-ion; Direct-write; Laser 1. Introduction A current trend in technologyJournal of Power Sources 126 (2004) 193­202 Li-ion microbatteries generated by a laser direct

Arnold, Craig B.

190

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

191

Electrochemical and Structural Study of the Layered, 'Li-Excess' Lithium-Ion Battery Electrode Material Li[Li[subscript 1/9]Ni[subscript 1/3]Mn[subscript 5/9  

SciTech Connect (OSTI)

The overcapacity mechanism and high voltage process of the Li-excess electrode material Li[Li{sub 1/9}Ni{sub 1/3}Mn{sub 5/9}]O{sub 2} are studied by solid-state NMR, X-ray diffraction, X-ray absorption spectroscopy, transmission electron microscopy, combined with galvanostatic and potentiostatic intermittent titration electrochemical measurements. The cycling performance is improved noticeably when the material is cycled between potential windows of 5.3-2.5 V compared to 4.6-2.5 V. Diffraction data show that structural changes occur at high voltages, the solid-state NMR data of the same samples indicating that the high voltage processes above 4.4 V are associated with Li removal from the structure, in addition to electrolyte decomposition. The NMR spectra of the discharged samples show that cation rearrangements in the transition metal layers have occurred. The XAS spectra confirm that the Mn oxidation state remains unchanged at 4+, whereas Ni{sup 2+} is oxidized to Ni{sup 4+} on charging to 4.4 V, returning to Ni{sup 2+} on discharge, independent of the final charge voltage. A significant change of the shape of the Ni edge is observed in the 4.6-5.3 V potential range on charge, which is ascribed to a change in the Ni local environment. No O{sub 2} evolution was detected based on ex situ analysis of the gases evolved in the batteries, the TEM data showing that thick passivating films form on the electrodes. The results suggest that at least some of the oxygen loss from these lithium-excess materials occurs via a mechanism involving electrolyte decomposition.

Jiang, Meng; Key, Baris; Meng, Ying S.; Grey, Clare P.; (SBU); (Florida)

2009-09-15T23:59:59.000Z

192

TiO2 nanoparticles for Li-ion battery anodes: Mitigation of growth and irreversible capacity using LiOH and NaOH  

Science Journals Connector (OSTI)

TiO2 anatase and rutile nanoparticles with various sizes and morphologies have been synthesized by very facile and scalable methods. A post-treatment including addition of LiOH or NaOH to the particles followed by heating at 180C in air or autoclave ...

Martin Sndergaard; Yanbin Shen; Aref Mamakhel; Mario Marinaro; Margret Wohlfahrt-Mehrens; Karen Wonsyld; Sren Dahl; Bo B. Iversen

2014-12-04T23:59:59.000Z

193

ESS 2012 Peer Review - Tehachapi Wind Energy Storage Project Using Li-Ion Batteries - Christopher Clarke, SCE  

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

Tehachapi Storage Project (TSP) Tehachapi Storage Project (TSP) American Recovery and Reinvestment Act Funded Project Christopher R. Clarke - Southern California Edison (SCE) christopher.r.clarke@sce.com Examples of Wind Generation in the Tehachapi Wind Resource Area August 2012 June 2012 May 2012 February 2012 April 2012 Progress To Date * Facility construction expected to complete in September 2012 * First Power Conversion System installed September 13, 2012 * A123 to ship initial battery equipment for delivery week of September 24, 2012 Future Major Milestones * September 2012 - Completion of BESS facility * October 2012 - Initial installation * November 2012 - Installation of second Power Conversion Subsystem * Q1 2013 - Install balance of equipment and commissioning * Q2 2013 - Start of 2 year M&V testing and reporting

194

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 (50C) 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

195

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

196

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

197

Materials as a Key to Electro-Mobility with Rechargeable LI Batteries  

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

Materials as a Key to Electro-Mobility with Rechargeable LI Batteries Materials as a Key to Electro-Mobility with Rechargeable LI Batteries Speaker(s): Martin Winter Date: February 11, 2013 - 12:00pm Location: 90-3122 Seminar Host/Point of Contact: Robert Kostecki The lithium ion technology is playing a key role in the electrification of the propulsion system in hybrid electric vehicles (HEVs) and in pure electric vehicles (EVs). The chemist and materials scientists faces this challenge, which derives from the demands for large-scale energy storage and conversion devices for electric propulsion purposes, by development and application of innovative battery components and concepts. The lithium ion battery has been introduced into the market by 1990/1991 and only by the mid 1990ies significant numbers of batteries have been produced. Within a

198

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

199

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

200

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

Note: This page contains sample records for the topic "li ion battery" 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

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

202

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

203

One-pot synthesis of a metalorganic framework as an anode for Li-ion batteries with improved capacity and cycling stability  

SciTech Connect (OSTI)

Metalorganic framework is a kind of novel electrode materials for lithium ion batteries. Here, a 3D metalorganic framework Co{sub 2}(OH){sub 2}BDC (BDC=1,4-benzenedicarboxylate) was synthesized for the first time by the reaction of Co{sup 2+} with a bio-inspired renewable organic ligand 1,4-benzenedicarboxylic acid through a solvothermal method. As an anode material for lithium ion batteries, this material exhibited an excellent cyclic stability as well as a large reversible capacity of ca. 650 mA h g{sup ?1} at a current density of 50 mA g{sup ?1} after 100 cycles within the voltage range of 0.023.0 V, higher than that of other BDC based anode. - Graphical abstract: The PXRD pattern and the cycleability curves (inset) of Co{sub 2}(OH){sub 2}BDC. Display Omitted - Highlights: Co{sub 2}(OH){sub 2}BDC was synthesized through a one pot solvothermal process. The solvent had a great effect on the purity of this material. This material was used as anode material for lithium ion batteries for the first time. Co{sub 2}(OH){sub 2}BDC showed improved capacity and cycling stability.

Gou, Lei, E-mail: Leigou@chd.edu.cn; Hao, Li-Min; Shi, Yong-Xin; Ma, Shou-Long; Fan, Xiao-Yong; Xu, Lei; Li, Dong-Lin, E-mail: dlli@chd.edu.cn; Wang, Kang

2014-02-15T23:59:59.000Z

204

Batteries for Plug-in Hybrid Electric Vehicles (PHEVs): Goals and the State of Technology circa 2008  

E-Print Network [OSTI]

safety and cost. Third, Li-Ion battery designs are betterattributes of one type of Li-Ion battery cannot necessarilycapabilities. In any case, Li-Ion battery technologies hold

Axsen, Jonn; Burke, Andy; Kurani, Kenneth S

2008-01-01T23:59:59.000Z

205

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

206

GBP Battery | Open Energy Information  

Open Energy Info (EERE)

GBP Battery Place: China Product: Shenzhen-China-based maker of Li-Poly and Li-ion batteries suitable for EVs and other applications. References: GBP Battery1 This article is...

207

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

208

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

209

DFT+U Study of Polaronic Conduction in Li2O2 and Li2CO3: Implications for Li-Air Batteries  

E-Print Network [OSTI]

power systems for automobiles. Electric vehicles (EVs) represent one of the main alternatives source. However, the present electric vehicles, powered by Li ion batteries, are limited in power in the cities produced by the fossil fuel-powered vehicles (FFVs) is forcing the development of alternative

Thygesen, Kristian

210

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

211

High Performance Cathodes for Li-Air Batteries  

SciTech Connect (OSTI)

The overall objective of this project was to develop and fabricate a multifunctional cathode with high activities in acidic electrolytes for the oxygen reduction and evolution reactions for Li-air batteries. It should enable the development of Li-air batteries that operate on hybrid electrolytes, with acidic catholytes in particular. The use of hybrid electrolytes eliminates the problems of lithium reaction with water and of lithium oxide deposition in the cathode with sole organic electrolytes. The use of acid electrolytes can eliminate carbonate formation inside the cathode, making air breathing Li-air batteries viable. The tasks of the project were focused on developing hierarchical cathode structures and bifunctional catalysts. Development and testing of a prototype hybrid Li-air battery were also conducted. We succeeded in developing a hierarchical cathode structure and an effective bifunctional catalyst. We accomplished integrating the cathode with existing anode technologies and made a pouch prototype Li-air battery using sulfuric acid as catholyte. The battery cathodes contain a nanoscale multilayer structure made with carbon nanotubes and nanofibers. The structure was demonstrated to improve battery performance substantially. The bifunctional catalyst developed contains a conductive oxide support with ultra-low loading of platinum and iridium oxides. The work performed in this project has been documented in seven peer reviewed journal publications, five conference presentations, and filing of two U.S. patents. Technical details have been documented in the quarterly reports to DOE during the course of the project.

Xing, Yangchuan

2013-08-22T23:59:59.000Z

212

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

213

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

214

A Novel In-situ Electrochemical Cell for Neutron Diffraction Studies of Phase Transitions in Small Volume Electrodes of Li-ion Batteries  

SciTech Connect (OSTI)

The design and performance of a novel in-situ electrochemical cell that greatly facilitates the neutron diffraction study of complex phase transitions in small volume electrodes of Li-ion cells, is presented in this work. Diffraction patterns that are Rietveld-refinable could be obtained simultaneously for all the electrodes, which demonstrates that the cell is best suited to explore electrode phase transitions driven by the lithiation and delithiation processes. This has been facilitated by the use of single crystal (100) Si sheets as casing material and the planar cell configuration, giving improved signal-to-noise ratio relative to other casing materials. The in-situ cell has also been designed for easy assembly and to facilitate rapid experiments. The effectiveness of cell is demonstrated by tracking the neutron diffraction patterns during the charging of graphite/LiCoO2 and graphite/LiMn2O4 cells. It is shown that good quality neutron diffraction data can be obtained and that most of the finer details of the phase transitions, and the associated changes in crystallographic parameters in these electrodes, can be captured.

Vadlamani, Bhaskar S [ORNL; An, Ke [ORNL; Jagannathan, M. [University of Utah; Ravi Chandran, K. [University of Utah

2014-01-01T23:59:59.000Z

215

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

216

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 (2C 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

217

Stability of polymer binders in Li-O2 batteries  

SciTech Connect (OSTI)

A number of polymers with various chemical structures were studied as binders for air electrodes in Li-O2 batteries. The nature of the polymer significantly affects the binding properties in the carbon electrodes thus altering the discharge performance of Li-O2 batteries. Stability of polymers to the aggressive reduced oxygen species generated during discharge was tested by ball milling them with KO2 and Li2O2, respectively. Most of the polymers decomposed under these conditions and mechanisms of the decompositions are proposed for some of the polymers. Polyethylene was found to have excellent stability and is suggested as robust binder for air electrodes in Li-O2 batteries.

Nasybulin, Eduard N.; Xu, Wu; Engelhard, Mark H.; Nie, Zimin; Li, Xiaohong S.; Zhang, Jiguang

2013-06-24T23:59:59.000Z

218

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

219

Composition dependence of average and local structure of xLi(Li1/3Mn2/3)O2(1?x)Li(Mn1/3Ni1/3Co1/3)O2 active cathode material for Li ion batteries  

Science Journals Connector (OSTI)

Abstract This study focused on the composition dependence of the crystal structure and cathode performance of xLi(Li1/3Mn2/3)O2(1?x)Li(Mn1/3Ni1/3Co1/3)O2 (0?x?1) prepared by co-precipitation. From charge-discharge tests, it was found that there was large differences in the battery performance between the composition of x=0.2 and x?0.3. For the samples, the average crystal structures were determined by the Rietveld refinement of neutron diffraction patterns. The results indicated that for x=0.2, Li existed at both 2b and 4g sites, whereas for x?0.3, Li was localized at 2b sites and Mn occupied the 4g sites. In order to examine the local crystal structure, pair distribution function (PDF) and extended X-ray absorption fine structure (EXAFS) analyses were carried out. From the PDF analysis, a significant difference was seen in the short-range peaks associated with the transition metal layer for x=0.2, 0.4 and 0.6. The EXAFS results indicated a large difference in the local structure around Mn for x=0.2 and x?0.3. This is thought to be due to ordering of LiMn6 and LiMn5Ni, which is likely to affect cathode performance.

Yasushi Idemoto; Masahiro Inoue; Naoto Kitamura

2014-01-01T23:59:59.000Z

220

A thermal-electrochemical model that gives spatial-dependent growth of solid electrolyte interphase in a Li-ion battery  

Science Journals Connector (OSTI)

Abstract The formation of a SEI layer and its growth cause internal resistance increase and capacity loss, leading to performance degradation of lithium-ion batteries. In order to comprehensively investigate the effects of SEI growth on battery performance, a one-dimensional thermal-electrochemical model was developed. This model is equipped with a growth mechanism of the SEI layer coupled with thermal evolution, based on the diffusional process of the solvent through the SEI layer and the kinetic process at the interface between the solid and liquid phases. The model is able to reveal the effects of diffusivity, reaction kinetics and temperature on SEI layer growth and cell capacity fade. We show that depending on the SEI thickness, the growth can be kinetics-limited or diffusion-limited. With the layer becoming thicker, its growth rate slows down gradually due to increased diffusion resistance. The SEI layer grows faster during charge than discharge due to the difference in the electron flux through the SEI layer and the temperature change during cycling. Temperature rise due to reaction and joule heating accelerates the SEI layer growth, leading to more capacity loss. Our model can provide insights on position-dependent SEI growth rate and be used to guide the strategic monitoring location.

Lin Liu; Jonghyun Park; Xianke Lin; Ann Marie Sastry; Wei Lu

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "li ion battery" 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

Improving the microstructure and electrochemical performance of carbon nanofibers containing graphene-wrapped silicon nanoparticles as a Li-ion battery anode  

Science Journals Connector (OSTI)

Abstract A novel anode material for lithium-ion batteries, graphene-wrapped Si nanoparticles (NPs) embedded in carbon composite nanofibers (CCNFs) with G/Si, is fabricated by electrospinning and subsequent thermal treatment. In \\{CCNFs\\} with G/Si, Si \\{NPs\\} are distributed and preserved inside the CNF surface because the graphene wrapping the Si \\{NPs\\} help prevent agglomeration and ensure a good dispersion of Si \\{NPs\\} inside the CNF matrix. 20-GSP prepared from a weight ratio of 20wt% of G/Si to polyacrylonitrile exhibits stable capacity retention and a reversible capacity of above 600mAhg?1 up to 100 cycles. The high cycling performance and superior reversible capacity of the 20-GSP anode can be attributed to the one-dimensional nanofibrous structure with non-agglomerated Si \\{NPs\\} in the CNF matrix, which promotes charge transfer, maintains a stable electrical contact, and buffers the Si volume expansion.

So Yeun Kim; Kap Seung Yang; Bo-Hye Kim

2015-01-01T23:59:59.000Z

222

Synthesis of LiCoMnO4 via a solgel method and its application in high power LiCoMnO4/Li4Ti5O12 lithium-ion batteries  

Science Journals Connector (OSTI)

A LiCoMnO4 (5V spinel) material has been synthesized by annealing a solgel precursor utilizing lithium acetate, cobalt acetate, manganese acetate, and citric acid. The as-prepared sample has been determined to be LiCo1.09Mn0.91O4 via inductive coupled plasma-atomic emission spectroscopy. The deviation of the molar ratio of Co/Mn from 1:1 is designed to minimize the amount of LiMn2O4 impurity in our sample. The produced spinel material possesses an initial discharge capacity of 87.1mAhg?1 with two voltage plateaus at 5.1 and 4.9V. The LiCo1.09Mn0.91O4 cathode has been assembled with a Li4Ti5O12 anode to form a full-cell which delivered a discharge capacity of 131.2mAhg?1, centered at 3.2V. It is of great interest that despite the low coulombic efficiency of the full-cell, it shows good cyclic performance. In addition, The LiCo1.09Mn0.91O4/Li4Ti5O12 cell shows an excellent rate capability, delivering a capacity of 84.2mAhg?1, corresponding to a high power density of 4.70kWkg?1 at the current density of 1700mAg?1.

Xingkang Huang; Min Lin; Qingsong Tong; Xiuhua Li; Ying Ruan; Yong Yang

2012-01-01T23:59:59.000Z

223

Development of First Principles Capacity Fade Model for Li-Ion Cells  

E-Print Network [OSTI]

Development of First Principles Capacity Fade Model for Li-Ion Cells P. Ramadass,* Bala Haran,** Parthasarathy M. Gomadam,* Ralph White,*** and Branko N. Popov**,z Department of Chemical Engineering developed to simulate the capacity fade of Li-ion batteries. Incorporation of a continuous occurrence

Popov, Branko N.

224

Are batteries ready for plug-in hybrid buyers?  

E-Print Network [OSTI]

Of the battery chemistries discussed, only Li-ion shows the2008) battery researchers continue to develop Li-ionbattery chemistries: nickel-metal hydride (NiMH) and lithium-ion (Li-

Axsen, Jonn; Kurani, Kenneth S.; Burke, Andrew

2008-01-01T23:59:59.000Z

225

Are Batteries Ready for Plug-in Hybrid Buyers?  

E-Print Network [OSTI]

Of the battery chemistries discussed, only Li-ion shows the2008) battery researchers continue to develop Li-ionbattery chemistries: nickel- metal hydride (NiMH) and lithium-ion (Li-

Axsen, Jonn; Burke, Andy; Kurani, Kenneth S

2010-01-01T23:59:59.000Z

226

Are Batteries Ready for Plug-in Hybrid Buyers?  

E-Print Network [OSTI]

Of the battery chemistries discussed, only Li-ion shows the2008) battery researchers continue to develop Li-ionbattery chemistries: nickel-metal hydride (NiMH) and lithium-ion (Li-

Axsen, Jonn; Kurani, Kenneth S; Burke, Andy

2009-01-01T23:59:59.000Z

227

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

228

Investigation of the Rechargeability of Li-O2 Batteries in Non...  

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

the Rechargeability of Li-O2 Batteries in Non-aqueous Electrolyte. Investigation of the Rechargeability of Li-O2 Batteries in Non-aqueous Electrolyte. Abstract: In order to...

229

Revisit Carbon/Sulfur Composite for Li-S Batteries. | EMSL  

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

Revisit CarbonSulfur Composite for Li-S Batteries. Revisit CarbonSulfur Composite for Li-S Batteries. Abstract: To correlate the carbon properties e.g. surface area and porous...

230

Effects of electrolyte salts on the performance of Li-O2 batteries...  

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

electrolyte salts on the performance of Li-O2 batteries. Effects of electrolyte salts on the performance of Li-O2 batteries. Abstract: It is well known that the stability of...

231

MAS NMR Study of the Metastable Solid Solutions Found in the LiFePO4/FePO4 System  

E-Print Network [OSTI]

Introduction Lithium-ion batteries have played a centralas current commercial Li-ion batteries currently do not meetnext generation of batteries designed for transportation '

Cabana, Jordi

2010-01-01T23:59:59.000Z

232

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

233

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

234

High Capacity Pouch-Type Li-air Batteries  

SciTech Connect (OSTI)

The pouch-type Li-air batteries operated in ambient condition are reported in this work. The battery used a heat sealable plastic membrane as package material, O2 diffusion membrane and moisture barrier. The large variation in internal resistance of the batteries is minimized by a modified separator which can bind the cell stack together. The cells using the modified separators show improved and repeatable discharge performances. It is also found that addition of about 20% of 1,2-dimethoxyethane (DME) in PC:EC (1:1) based electrolyte solvent improves can improve the wetability of carbon electrode and the discharge capacities of Li-air batteries, but further increase in DME amount lead to a decreased capacity due to increase electrolyte loss during discharge process. The pouch-type Li-air batteries with the modified separator and optimized electrolyte has demonstrated a specific capacity of 2711 mAh g-1 based on carbon and a specific energy of 344 Wh kg-1 based on the complete batteries including package.

Wang, Deyu; Xiao, Jie; Xu, Wu; Zhang, Jiguang

2010-05-05T23:59:59.000Z

235

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

236

Thermal runaway features of 18650 lithium-ion batteries for LiFePO4 cathode material by DSC and VSP2  

Science Journals Connector (OSTI)

In view of availability, accountability, and applicability, LiFePO4 cathode material has been confirmed to be better than LiCoO2...cathode material. Nevertheless, few related researches were conducted for thermal

Chia-Yuan Wen; Can-Yong Jhu; Yih-Wen Wang

2012-09-01T23:59:59.000Z

237

Fabrication of Graphene Embedded LiFePO4 Using a Catalyst Assisted Self Assembly Method as a Cathode Material for High Power Lithium-Ion Batteries  

Science Journals Connector (OSTI)

Tailoring Crystal Structure and Morphology of LiFePO4/C Cathode Materials Synthesized by Heterogeneous Growth on Nanostructured LiFePO4 Seed Crystals ... Enhancement of Electrochemical Activity of LiFePO4 (olivine) by Amphiphilic Ru-bipyridine Complex Anchored to a Carbon Nanotube ... properties have also been investigated after assembling coin cells with the CA-graphene/LiFePO4 composite as a cathode active material. ...

WonKeun Kim; WonHee Ryu; DongWook Han; SungJin Lim; JiYong Eom; HyukSang Kwon

2014-03-12T23:59:59.000Z

238

Graphene modified Li2FeSiO4/C composite as a high performance cathode material for lithium-ion batteries  

Science Journals Connector (OSTI)

Graphene modified Li2FeSiO4/C composite (Li2FeSiO4/C/G) has been synthesized successfully by a chemical vapor deposition (CVD)-assisted two-step solid-state reactions. The Li2FeSiO4/C/G composite is characteristi...

Zheng Zhang; Xingquan Liu; Yue Wu; Hongyuan Zhao

2014-09-01T23:59:59.000Z

239

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

240

Thermal Instability of Olivine-Type LiMnP04 Cathodes  

E-Print Network [OSTI]

In the presence of a Li-ion battery electrolyte, delithiatedion battery electrolyte is also evaluated, and its impact on the safety of high energy phosphate Li-

Chen, Guoying

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "li ion battery" 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

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

242

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

243

Electrochemical properties of all solid state Li/S battery  

SciTech Connect (OSTI)

All-solid-state lithium/sulfur (Li/S) battery is prepared using siloxane cross-linked network solid electrolyte at room temperature. The solid electrolytes show high ionic conductivity and good electrochemical stability with lithium and sulfur. In the first discharge curve, all-solid-state Li/S battery shows three plateau potential regions of 2.4 V, 2.12 V and 2.00 V, respectively. The battery shows the first discharge capacity of 1044 mAh g{sup ?1}-sulfur at room temperature. This first discharge capacity rapidly decreases in 4th cycle and remains at 512 mAh g{sup ?1}-sulfur after 10 cycles.

Yu, Ji-Hyun; Park, Jin-Woo; Wang, Qing; Ryu, Ho-Suk; Kim, Ki-Won [School of Materials Science and Engineering, WCUNGB, RIGET, Gyeongsang National University, Jinju 660-701 (Korea, Republic of)] [School of Materials Science and Engineering, WCUNGB, RIGET, Gyeongsang National University, Jinju 660-701 (Korea, Republic of); Ahn, Jou-Hyeon [Department of Chemical and Biological Engineering, Gyeongsang National University, Jinju 660-701 (Korea, Republic of)] [Department of Chemical and Biological Engineering, Gyeongsang National University, Jinju 660-701 (Korea, Republic of); Kang, Yongku [Korea Research Institute of Chemical Technology, Daejeon 305-600 (Korea, Republic of)] [Korea Research Institute of Chemical Technology, Daejeon 305-600 (Korea, Republic of); Wang, Guoxiu [School of Materials Science and Engineering, WCUNGB, RIGET, Gyeongsang National University, Jinju 660-701 (Korea, Republic of) [School of Materials Science and Engineering, WCUNGB, RIGET, Gyeongsang National University, Jinju 660-701 (Korea, Republic of); School of Chemistry and Forensic Science, University of Technology Sydney, Broadway, Sydney, NSW 2007 (Australia); Ahn, Hyo-Jun, E-mail: ahj@gnu.ac.kr [School of Materials Science and Engineering, WCUNGB, RIGET, Gyeongsang National University, Jinju 660-701 (Korea, Republic of)] [School of Materials Science and Engineering, WCUNGB, RIGET, Gyeongsang National University, Jinju 660-701 (Korea, Republic of)

2012-10-15T23:59:59.000Z

244

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-????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

245

BROADBAND IDENTIFICATION OF BATTERY ELECTRICAL IMPEDANCE FOR HEV  

E-Print Network [OSTI]

­ CEA LETI/LITEN; P. Granjon ­ GIPSA-Lab; Abstract -- In recent years, Li-ion batteries have been for the broadband monitoring of a battery. Keywords-- battery impedance, spectroscopy, broadband signals, Li-ion system of EV and HEV. Li-ion battery technology is believed to be the most attractive

Paris-Sud XI, Université de

246

Computational and Experimental Investigation of Ti Substitution in Li1(NixMnxCo12xyTiy)O2 for Lithium Ion Batteries  

Science Journals Connector (OSTI)

In the fields of photovoltaics, fuel cells, and batteries, significant improvements have been achieved through combined experimental and computational material design from the atomic to continuum scale. ... Furthermore, we find that Ti substitution suppresses the formation of a secondary rock salt phase, which has recently been shown to increase the overall battery impedance, leading to capacity fading when cycling to voltages above 4.5 V at constant C rates. ...

Isaac M. Markus; Feng Lin; Kinson C. Kam; Mark Asta; Marca M. Doeff

2014-10-09T23:59:59.000Z

247

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

248

Development of Li+ alumino-silicate ion source  

E-Print Network [OSTI]

yellow line) from a ?-Spodumene Li test source, operated atexceeding 1200 0 C. ?-spodumene and ? eucryptite Li sourcesdeveloping high quality ?-spodumene and ?-eucryptite Li ion

Roy, P.K.

2009-01-01T23:59:59.000Z

249

Composites of Graphene and LiFePO4 as Cathode Materials for Lithium-Ion Battery: A Mini-review  

Science Journals Connector (OSTI)

This mini-review highlights selectively the recent research progress in the composites of LiFePO4 and graphene. In particularly, the different fabrication protocols, and the electrochemical performance of the com...

Haixia Wu; Qinjiao Liu; Shouwu Guo

2014-10-01T23:59:59.000Z

250

Thermal Instability of Olivine-Type LiMnP04 Cathodes  

E-Print Network [OSTI]

Standard for Lithium Batteries, document 1642, 3 rd Edition,of high energy phosphate Li-ion batteries is discussed. 2.g. Thermal runaway of Li-ion batteries occurs when the heat

Chen, Guoying

2010-01-01T23:59:59.000Z

251

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

252

Method for improving voltage regulation of batteries, particularly Li/FeS/sub 2/ thermal batteries  

DOE Patents [OSTI]

Batteries are improved, especially with respect to voltage regulation properties, by employing as anode and cathode compositions, those which fall in a thermodynamically invariant region of the metallurgical phase diagram of the combination of the constituent components. The invention is especially useful in the Li/FeS/sub 2/ system.

Godshall, N.A.

1986-06-10T23:59:59.000Z

253

Malonic acid-assisted synthesis of LiNi0.8Co0.2O2 cathode active material for lithium-ion batteries  

Science Journals Connector (OSTI)

Polycrystalline LiNi0.8Co0.2O2...was synthesized by a solution route with malonic acid as the complexing agent. The effects of temperature, duration of heat treatment, pH of the precursor solution, and the nature...

G. Ting-Kuo Fey; Zhi-Feng Wang; T. Prem Kumar

2002-01-01T23:59:59.000Z

254

Recycling of LiFePO4 Batteries  

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

8-11, 2011 8-11, 2011 Linda Gaines Center for Transportation Research Argonne National Laboratory Recycling of LiFePO 4 Batteries 7th International Symposium on Inorganic Phosphate Materials Phosphate Materials for Energy Storage We don't want to trade one crisis for another!  Battery material shortages are unlikely - We demonstrated that lithium demand can be met - Recycling mitigates potential scarcity  Life-cycle analysis checks for unforeseen impacts  We need to find something to do with the used materials - Safe - Economical 2 Battery materials could get used multiple times Initial Use Automotive power Secondary Use Utility storage Residential storage Power at remote location Refurbishment Rejuvenate (change electrolyte) Switch out bad module

255

NANOWIRE CATHODE MATERIAL FOR LITHIUM-ION BATTERIES  

SciTech Connect (OSTI)

This project involved the synthesis of nanowire -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 -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 -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 -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 -MnO2 electrodeposited onto graphite was demonstrated, showing a partial demonstration of the -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

256

Modeling & Simulation - Batteries  

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

Production of Batteries for Electric and Hybrid Vehicles Production of Batteries for Electric and Hybrid Vehicles battery assessment graph Lithium-ion (Li-ion) batteries are currently being implemented in hybrid electric (HEV), plug-in hybrid electric (PHEV), and electric (EV) vehicles. While nickel metal-hydride will continue to be the battery chemistry of choice for some HEV models, Li-ion will be the dominate battery chemistry of the remaining market share for the near-future. Large government incentives are currently necessary for customer acceptance of the vehicles such as the Chevrolet Volt and Nissan Leaf. Understanding the parameters that control the cost of Li-ion will help researchers and policy makers understand the potential of Li-ion batteries to meet battery energy density and cost goals, thus enabling widespread adoption without incentives.

257

The mechanism of HF formation in LiPF6-based organic carbonate electrolytes  

E-Print Network [OSTI]

lithium ion battery electrolytes upon thermal aging werethermal degradation of LiPF 6 at 50C in a lithium ion battery

Lux, Simon

2014-01-01T23:59:59.000Z

258

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

259

Analysis of Thermal Aging and Structural Stability of Li[Lix(Ni0.3Co0.1Mn0.6)1-x]O2 (x = 0.11) Cathode Active Material for Rechargeable Li-Ion Batteries  

Science Journals Connector (OSTI)

The high rate capability of Mn-rich Li[Lix(Ni0.3Co0.1Mn0.6)1-x]O2 (x = 0.11) cathode active materials is investigated by cycling the cell at a given rate for five cycles and keeping the cell idle under thermal control chamber for 10 h and the same process repeating up to 30 cycles. The before and after thermal aging of Mn-rich cathode materials deliver the initial discharge capacity of 153 and 157.32 mA h g-1 up to 30 cycles and also it is maintained the average specific discharge capacity of 140 mA h g-1 for before thermal aging and more than 90% capacity retention. After thermal aging of cathode materials have maintain the average specific discharge capacity of 155 mA h g-1 and more than 97% capacity retentions. During charging, they are not oxidized further; Ni2+ and at least part of Co3+ ions are oxidized to higher valence states. During the discharge reactions, the small amount of Mn3+ reduced to the Mn4+ and some part of Ni3+ ions are reduced to Ni4+. Also the Co3+ ions are fully reduced to the Co4+ state, which due to thermal aging studies does not have major affects in the Mn-rich layered structure under thermal control chamber. These thermal aging analyses are essential to achieve a deeper understanding of the structural defects and safety views for Li-ion batteries to use in electric vehicle technologies.

Kumaran Vediappan; Yong Nam Jo; Suk-Jun Park; Hyun-Soo Kim; Chang Woo Lee

2012-01-01T23:59:59.000Z

260

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 "li ion battery" 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.


261

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

262

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

263

Combustion Synthesis of Nanoparticulate LiMgxMn1-xPO4 (x=0, 0.1, 0.2) Carbon Composites  

E-Print Network [OSTI]

for Rechargeable Lithium Batteries. J. Electrochem. Soc.Materials for Lithium Batteries. J. Electrochem. Soc. 148,LiMnPO 4 for Lithium Ion Batteries. Electrochem. and Solid

Doeff, Marca M

2010-01-01T23:59:59.000Z

264

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 (CH3COOLi2H2O), nickel acetate ((CH3COO)2Ni4H2O), manganese acetate ((CH3COO)2Mn4H2O)...

K. S. Park; C. H. Song; A. Manuel Stephan; S. K. Jeong

2006-11-01T23:59:59.000Z

265

ESS 2012 Peer Review - Solid State Li Metal Batteries for Grid-Scale Energy Storage - Mohit Singh, Seeo  

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

Annual Review 2012 Annual Review 2012 Mohit Singh, VP R&D and Engineering Funded in part by the Energy Storage Systems Program from the Department of Energy through the National Energy Technology Laboratory Copyright ©2012 Seeo Inc. All rights reserved Conventional Li Ion Seeo Battery Li Foil Anode Dry Solid Separator Dry Polymer Cathode Composite Al Current Collector Cu Current Collector Porous Graphite Anode Composite Porous Separator Porous Cathode Composite Al Current Collector Element Li Ion Seeo Seeo Benefits Electrolyte Liquid Solid Safety: Non-reactive and non-flammable Energy: Superior specific energy (Wh/kg) Reliability: High temp stability, minimal fade Anode Porous Solid Cathode Porous Solid Seeo's solid polymer battery

266

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

267

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

268

Vehicle Technologies Office: Advanced Battery Development, System Analysis, and Testing  

Broader source: Energy.gov [DOE]

To develop better lithium-ion (Li-ion) batteries for plug-in electric vehicles, researchers must integrate the advances made in exploratory battery materials and applied battery research into full...

269

Challenges and Prospects of LithiumSulfur 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

270

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

271

Revisit Carbon/Sulfur Composite for Li-S Batteries  

SciTech Connect (OSTI)

To correlate the carbon properties e.g. surface area and porous structure, with the electrochemical behaviors of carbon/sulfur (C/S) composite cathodes for lithium-sulfur (Li-S) batteries, four different carbon frameworks including Ketjen Black (KB, high surface area and porous), Graphene (high surface area and nonporous), Acetylene Black (AB, low surface area and nonporous) and Hollow Carbon Nano Sphere (HCNS, low surface area and porous) are employed to immobilize sulfur (80 wt.%). It has been revealed that high surface area of carbon improves the utilization rate of active sulfur and decreases the real current density during the electrochemical reactions. Accordingly, increased reversible capacities and reduced polarization are observed for high surface area carbon hosts such as KB/S and graphene/S composites. The porous structure of KB or HCNS matrix promotes the long-term cycling stability of C/S composites but only at relatively low rate (0.2 C). Once the current density increases, the pore effect completely disappears and all Li-S batteries show similar trend of capacity degradation regardless of the different carbon hosts used in the cathodes. The reason has been assigned to the formation of reduced amount of irreversible Li2S on the cathode as well as shortened time for polysulfides to transport towards lithium anode at elevated current densities. This work provides valuable information for predictive selection on carbon materials to construct C/S composite for practical applications from the electrochemical point of view.

Zheng, Jianming; Gu, Meng; Wagner, Michael J.; Hays, Kevin; Li, Xiaohong S.; Zuo, Pengjian; Wang, Chong M.; Zhang, Jiguang; Liu, Jun; Xiao, Jie

2013-07-23T23:59:59.000Z

272

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

273

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 0.8000.900 by using a spray-drying method, followed by calcination at several temperatures between 700 and 900C 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 chargedischarge 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 700900C for 12h in air, a pure Li4+xTi5?xO12?? (x=0.060.08) 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=0.060.08) phase materials showed a higher discharge capacity of ?164mAhg?1 at 1.55V (vs. Li/Li+), between the cut-off voltage of 1.23.0, 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

274

Li ion migration in Li3PO4 electrolytes: Effects of O vacancies and N substitutions  

E-Print Network [OSTI]

Li ion migration in Li3PO4 electrolytes: Effects of O vacancies and N substitutions Y. A. Dua and N structures of isolated defects associated with extrinsic Li ion vacancies and interstitials. In particular the combination of an O vacancy and a N substitution, stabilizing a Li ion vacancy. We also studied the effects

Holzwarth, Natalie

275

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

276

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

277

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

278

Batteries: Overview of Battery Cathodes  

E-Print Network [OSTI]

and Titanates as High-Energy Cathode Materials for Li-IonI, Amine K (2009) High Energy Cathode Material for Long-LifeA New Cathode Material for Batteries of High Energy Density.

Doeff, Marca M

2011-01-01T23:59:59.000Z

279

Electrochemical investigation of Li-excess layered oxide cathode materials/mesocarbon microbead in 18650 batteries  

Science Journals Connector (OSTI)

Abstract The electrochemical performance of the 18650 lithium-ion batteries for layered Li-excess oxide Li1.144Ni0.136Co0.136Mn0.544O2 (LNCMO) cathode material and mesocarbon microbead (MCMB) anode material is investigated. The battery shows an excellent rate capability with the capacity of 227 mAh g?1 at 8 C-rate (the cut-off voltage is 4.5V). Furthermore, it exhibits excellent cycle performance that the capacity retention over 300 cycles in the voltage ranges of 2.5-4.5V (vs. MCMB) and at 0.2 C-rate is about 85%. Although the medium voltage of the battery greatly reduces during the first 30 cycles, it keeps stable in the following cycles. The mechanisms of the capacity fade and voltage decay are also studied based on energy dispersive spectrometry, X-ray photoelectron spectroscopy, charge-discharge curves, and dQ/dV plots.

Bao Qiu; Qian Zhang; Huasheng Hu; Jun Wang; Juanjuan Liu; Yonggao Xia; Yongfeng Zeng; Xiaolan Wang; Zhaoping Liu

2014-01-01T23:59:59.000Z

280

LiMnPO4 Nanoplate Grown via Solid-State Reaction in Molten Hydrocarbon...  

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

LiMnPO4 Nanoplate Grown via Solid-State Reaction in Molten Hydrocarbon for Li-ion Battery Cathode. LiMnPO4 Nanoplate Grown via Solid-State Reaction in Molten Hydrocarbon for Li-ion...

Note: This page contains sample records for the topic "li ion battery" 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

DFT+U Study of Polaronic Conduction in Li2O2 and Li2CO3: Implications for LiAir Batteries  

Science Journals Connector (OSTI)

DFT+U Study of Polaronic Conduction in Li2O2 and Li2CO3: Implications for LiAir Batteries ... The emission of greenhouse gases and the local pollution in the cities produced by the fossil fuel-powered vehicles (FFVs) is forcing the development of alternative power systems for automobiles. ... A delocalized solution was found. ...

J. M. Garcia-Lastra; J. S. G. Myrdal; R. Christensen; K. S. Thygesen; T. Vegge

2013-02-15T23:59:59.000Z

282

Ionic, XRD, dielectric and cyclic voltammetry studies on PVdF-co-HFP / MMT clay intercalated LiN ( C 2 F 5 SO 2 ) 2 based composite electrolyte for Li-ion batteries  

Science Journals Connector (OSTI)

The composition dependence of plasticizer (EC/DMC) (70-x(wt%)) and LiBETI x(wt%) salt for fixed contents on PVdF-co-HFP(25wt%)/surface modified(SM)-octadecylamine MMT(ODA-MMT) nanoclay(5wt%) host matrix by varying its compositions x=1.5 3.0 4.5 6.0 wt% prepared via solution casting technique has been investigated by A.C. Impedance Dielectric XRD and cyclic voltammetry(CV) studies. The enhanced conductivity 2.110?5 S/cm at 300C is observed for (EC/DMC)(70-6)wt%/LiBETI(x=6)wt%. The XRD at 2?=20.9 confirms ?-phase formation and CV studies on membranes show cyclability and reversibility. The dielectric studies show increase in dielectric constant and dielectric loss with decrease in frequency is attributed to high contribution of charge accumulation at the electrode-electrolyte interface.

2014-01-01T23:59:59.000Z

283

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.

284

Study of C-coated LiFe{sub 0.33}Mn{sub 0.67}PO{sub 4} as positive electrode material for Li-ion batteries  

SciTech Connect (OSTI)

Commercial C-LiFe{sub 0.33}Mn{sub 0.67}PO{sub 4} positive electrode material has been investigated by {sup 57}Fe Moessbauer Spectroscopy (MS), X-ray Photoelectron Spectroscopy (XPS) and X-ray Absorption Spectroscopy (XAS). The combined use of these experimental techniques provides a better understanding of the electrochemical reaction involved during cycling. {sup 57}Fe MS is very efficient to directly follow oxidation state of Fe in the electrode, and gives surprisingly indirect information on the oxidation state of Mn as observed by XAS and XPS. The electrochemical mechanism is proposed based from in situ and operando investigations using both MS and XAS, and is consistent with XPS surface studies. XPS analysis of the electrodes at the end of charge (4.4 V) reveals enhanced electrode/electrolyte interface reactivity at this high potential. Aging of C-LiFe{sub 0.33}Mn{sub 0.67}PO{sub 4}/Li cells after 50 cycles at 60 Degree-Sign C indicates a rather good electrochemical behavior (low capacity fading) of the electrode material. Both {sup 57}Fe MS and XPS (Mn 2p and Fe 2p) clearly show no modification on Fe and Mn oxidation state compared to fresh electrode confirming the good electrochemical performances. - Graphical abstrct: Quantitative evaluation of the Fe{sup 3+} and Mn{sup 3+} content during the first charge/discharge cycle obtained from K-edge XANES spectra of C-LiFe{sub 0.33}Mn{sub 0.67}PO{sub 4} recorded upon cell operation at RT with C/10 rate. During the charge co-existence of Fe and Mn oxidation is observed between points 2 and 4 of the potential curve. At the end of the charge the cut-off voltage limits the oxidation at about 93%. Highlights: Black-Right-Pointing-Pointer C-LiFe{sub 0.33}Mn{sub 0.67}PO{sub 4} electrode material upon cycling vs. metallic lithium. Black-Right-Pointing-Pointer {sup 57}Fe Moessbauer spectroscopy is a (in)direct probe for Fe(Mn) oxidation state. Black-Right-Pointing-Pointer Both K-Fe and K-Mn edges XAS show a simultaneous oxidation of Fe{sup 2+} and Mn{sup 2+} in a small range of compositions. Black-Right-Pointing-Pointer Surface analysis from XPS allows reveals slight differences at the surface of the electrode with respect to the bulk.

Perea, A. [Institut Charles Gerhardt Montpellier, UMR 5253 CNRS-UM2-ENSCM-UM1 Agregats, Interfaces et Materiaux pour l'Energie CC 1502, Place Eugene Bataillon, 34095 Montpellier, Cedex 5 (France); Castro, L. [IPREM-ECP, Universite de Pau, Helioparc, 2 av. Pierre Angot, 64053 Pau, Cedex 9 (France); Aldon, L., E-mail: laurent.aldon@um2.fr [Institut Charles Gerhardt Montpellier, UMR 5253 CNRS-UM2-ENSCM-UM1 Agregats, Interfaces et Materiaux pour l'Energie CC 1502, Place Eugene Bataillon, 34095 Montpellier, Cedex 5 (France); Stievano, L. [Institut Charles Gerhardt Montpellier, UMR 5253 CNRS-UM2-ENSCM-UM1 Agregats, Interfaces et Materiaux pour l'Energie CC 1502, Place Eugene Bataillon, 34095 Montpellier, Cedex 5 (France); Dedryvere, R.; Gonbeau, D. [IPREM-ECP, Universite de Pau, Helioparc, 2 av. Pierre Angot, 64053 Pau, Cedex 9 (France); Tran, N.; Nuspl, G. [Sued-Chemie AG, Ostenriederstr. 15, D-85368 Moosburg (Germany); Breger, J.; Tessier, C. [SAFT, 111-113 bd. Alfred Daney, 33074 Bordeaux, Cedex (France)

2012-08-15T23:59:59.000Z

285

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

286

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

287

Alloys as Anode Materials in Magnesium Ion Batteries.  

E-Print Network [OSTI]

?? This thesis is a feasibility study of the possible application of magnesium alloys forfuture magnesium-ion batteries. It investigates dierent alloys and characterizesthem with respect (more)

Syvertsen, Alf Petter

2012-01-01T23:59:59.000Z

288

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...

289

GeOx/Reduced Graphene Oxide Composite as an Anode for Li-ion Batteries: Enhanced Capacity via Reversible Utilization of Li2O along with Improved Rate Performance  

SciTech Connect (OSTI)

A self-assembled GeOx/reduced graphene oxide (GeOx/RGO) composite, where GeOx nanoparticles were grown directly on reduced graphene oxide sheets, was synthesized via a facile one-step reduction approach and studied by X-ray diffraction, transmission electron microscopy, energy dispersive X-ray spectroscopy, electron energy loss spectroscopy elemental mapping, and other techniques. Electrochemical evaluation indicates that incorporation of reduced graphene oxide enhances both the rate capability and reversible capacity of GeOx, with the latter being due to the RGO enabling reversible utilization of Li2O. The composite delivers a high reversible capacity of 1600 mAhg-1 at a current density of 100 mAg-1, and still maintains a capacity of 410 mAhg-1 at a high current density of 20 Ag-1. Owing to the flexible reduced graphene oxide sheets enwrapping the GeOx particles, the cycling stability of the composite was also improved significantly. To further demonstrate its feasibility in practical applications, the synthesized GeOx/RGO composite anode was successfully paired with a high voltage LiNi0.5Mn1.5O4 cathode to form a full cell, which showed good cycling and rate performance.

Lv, Dongping; Gordin, Mikhail; Yi, Ran; Xu, Terrence (Tianren); Song, Jiangxuan; Jiang, Yingbing; Choi, Daiwon; Wang, Donghai

2014-09-01T23:59:59.000Z

290

Vehicle Specifications Battery Type: Li-Ion  

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

Under hood above powertrain Under hood above powertrain Nominal System Voltage: 333 V Rated Capacity (C/3): 40 Ah Cooling Method: Glycol / Water mix Powertrain Motor Type: DC Brushless Number of Motors: One Motor Cooling Type: Glycol / Water mix Drive Wheels: Rear Wheel Drive Transmission: None (gear ratio only in rear axle) Charger Location: Underhood Charger Port: Driver's side, front quarter panel Type: Conductive (J1772 connector) Input Voltage(s): 120 or 240 VAC Chassis Aluminum Body on Steel Frame Rear Suspension: Solid Axle with Leaf Springs Front Suspension: Dual A-arm with Coil Springs Weights Design Curb Weight: 3250 lbs Delivered Curb Weight: 3310 lbs 7 Distribution F/R: 55.2/44.8% GVWR: 4450 lbs Max Payload: 940 lbs + 200 lbs driver 1 Performance Goal Payload: 1000 lbs + 200 lbs driver

291

GM Li-Ion Battery Pack Manufacturing  

Broader source: Energy.gov [DOE]

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

292

GM Li-Ion Battery Pack Manufacturing  

Broader source: Energy.gov [DOE]

2012 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting

293

Li-Ion Battery Cell Manufacturing  

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

Corp. LG Chem Chemicals Electronics Comm.& Services *LG Chem *LG Hausys *LG Household & Health Care *LG Life Sciences *LG MMA *LG Electronics *LG Display *LG Innotek *Hiplaza...

294

Batteries - Home  

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

Advanced Battery Research, Development, and Testing Advanced Battery Research, Development, and Testing Argonne's Research Argonne plays a major role in the US Department of Energy's (DOE's) energy storage program within its Office of Vehicle Technologies. Activities include: Developing advanced anode and cathode materials under DOE's longer term exploratory R&D program Leading DOE's applied R&D program focused on improving lithium-ion (Li-Ion) battery technology for use in transportation applications Developing higher capacity electrode materials and electrolyte systems that will increase the energy density of lithium batteries for extended electric range PHEV applications Conducting independent performance and life tests on other advanced (Li-Ion, Ni-MH, Pb-Acid) batteries. Argonne's R&D focus is on advanced lithium battery technologies to meet the energy storage needs of the light-duty vehicle market.

295

Highly Reversible Open Framework Nanoscale Electrodes for Divalent Ion Batteries  

Science Journals Connector (OSTI)

Reversible insertion of divalent ions such as magnesium would allow the creation of new battery chemistries that are potentially safer and cheaper than lithium-based batteries. ... New developments in the chem. of secondary and flow batteries as well as regenerative fuel cells are also considered. ...

Richard Y. Wang; Colin D. Wessells; Robert A. Huggins; Yi Cui

2013-10-22T23:59:59.000Z

296

Defective graphene as promising anode material for Na-ion battery and Ca-ion battery  

E-Print Network [OSTI]

We have investigated adsorption of Na and Ca on graphene with divacancy (DV) and Stone-Wales (SW) defect. Our results show that adsorption is not possible on pristine graphene. However, their adsorption on defective sheet is energetically favorable. The enhanced adsorption can be attributed to the increased charge transfer between adatoms and underlying defective sheet. With the increase in defect density until certain possible limit, maximum percentage of adsorption also increases giving higher battery capacity. For maximum possible DV defect, we can achieve maximum capacity of 1459 mAh/g for Na-ion batteries (NIBs) and 2900 mAh/g for Ca-ion batteries (CIBs). For graphene full of SW defect, we find the maximum capacity of NIBs and CIBs is around 1071 mAh/g and 2142 mAh/g respectively. Our results will help create better anode materials with much higher capacity and better cycling performance for NIBs and CIBs.

Datta, Dibakar; Shenoy, Vivek B

2013-01-01T23:59:59.000Z

297

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...

298

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...

299

NREL's emulation tool helps manufacturers ensure the safety and reliability of electric vehicle batteries.  

E-Print Network [OSTI]

in a short circuit between electrodes during use. As electric car manufacturers turn to Li-ion batteries

300

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

Note: This page contains sample records for the topic "li ion battery" 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

Mixed Salts of LiTFSI and LiBOB for Stable LiFePO4-Based Batteries at Elevated Temperatures  

SciTech Connect (OSTI)

To achieve stable long-term cycling stability at elevated temperatures, mixed salts of LiTFSI and LiBOB are used to replace LiPF6 salt in non-aqueous electrolytes for LiFePO4-based batteries. It is found that adding LiBOB in LiTFSI-based electrolytes effectively prevents the severe corrosion to Al current collectors that often is observed in LiTFSI-based electrolytes, which have high thermal stability. The cells using LiTFSI-LiBOB-based electrolytes demonstrate superior high temperature (60 ?C) stability and very similar room temperature performance (i.e., cycling stability and rate capability) when compared to cells using the LiPF6-based electrolyte.

Chen, Xilin; Xu, Wu; Engelhard, Mark H.; Zheng, Jianming; Zhang, Yaohui; Ding, Fei; Qian, Jiangfeng; Zhang, Jiguang

2014-01-13T23:59:59.000Z

302

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

303

Stress fields in hollow coreshell 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

304

Hollow Core-Shell Structured Porous Si-C Nanocomposites for Li...  

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

Hollow Core-Shell Structured Porous Si-C Nanocomposites for Li-Ion Battery Anodes. Hollow Core-Shell Structured Porous Si-C Nanocomposites for Li-Ion Battery Anodes. Abstract:...

305

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

306

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

307

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

308

Ion implantation of highly corrosive electrolyte battery components  

DOE Patents [OSTI]

A method of producing corrosion resistant electrodes and other surfaces in corrosive batteries using ion implantation is described. Solid electrically conductive material is used as the ion implantation source. Battery electrode grids, especially anode grids, can be produced with greatly increased corrosion resistance for use in lead acid, molten salt, and sodium sulfur. 6 figs.

Muller, R.H.; Zhang, S.

1997-01-14T23:59:59.000Z

309

Li0.93[Li0.21Co0.28Mn0.51]O2 nanoparticles for lithium battery cathode material made by cationic exchange from K-birnessite  

E-Print Network [OSTI]

Li0.93[Li0.21Co0.28Mn0.51]O2 nanoparticles for lithium battery cathode material made by cationic arising from the Jahn­Teller active Mn3+ ion [6,7]. These cathode mate- rials transformed to a spinel in lithium concentration. The as-prepared cathode particle has plate-like hexagonal morphology with a size

Cho, Jaephil

310

The Stability of Organic Solvents and Carbon Electrode in Nonaqueous Li-O2 Batteries  

SciTech Connect (OSTI)

The effect of different kinds of aprotic organic solvents on the discharge performance and discharge products in Li-O2 batteries was systematically investigated. The discharge products deposited in air cathodes were analyzed by X-ray diffraction, in situ gas chromatography/mass spectroscopy and X-ray photoelectron spectroscopy. We found that a significant amount of Li2O2 can be formed in glyme-based electrolytes during the discharge process, while only small amount of Li2O2 is produced in electrolytes of phosphate, nitrile, ionic liquid and sulfoxide. However, in all the seven types of solvent systems we studied, Li2CO3 and LiF were still formed as byproducts whose compositions are strongly related to the solvents. Li2CO3 is produced not from the carbon air electrode but from oxidation and decomposition of the solvent as we verified by using a 13C-labeled carbon electrode and the solid-state 13C-MAS NMR technique. The formation of Li2CO3 and LiF during discharge will greatly reduce the Coulombic efficiency and cycle life of the Li-air batteries. Therefore, better electrolytes that can ensure the formation of Li2O2 but minimize other reaction products formed on air electrodes of Li-air batteries need to be further investigated.

Xu, Wu; Hu, Jian Z.; Engelhard, Mark H.; Towne, Silas A.; Hardy, John S.; Xiao, Jie; Feng, Ju; Hu, Mary Y.; Zhang, Jian; Ding, Fei; Gross, Mark E.; Zhang, Jiguang

2012-05-18T23:59:59.000Z

311

Intrinsic Surface Stability in LiMn2-xNixO4-d (x=0.45, 0.5) High Volt-age Spinel Materials for Lithium Ion Batteries  

SciTech Connect (OSTI)

This work reports the surface stability of the high voltage Li ion cathode LiMn2-xNixO4- (x= 0.5, 0.45) by comparing thin film and powder composite electrodes after cycling using X-ray photoelectron spectroscopy. The thin film electrodes offer the ability to probe the surface of the material without the need of a conductive agent and polymer binder typically used in composite electrodes. The results suggest that neither oxidation of PF6 to POF5 nor the decomposition of ethylene carbonate or dimethylene carbonate occurs on the surface of the spinel material. These results confirm the enhanced cycling stability and rate capability associated with the high voltage spinel material and suggests that the SEI layer forms 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

312

Analysis of the thermal behavior of a LiFePO4 battery cell  

Science Journals Connector (OSTI)

This paper presents theory, experiments and numerical modeling results for the electrothermal analysis of Lithium Iron Phosphate (LiFePO4) battery cells. Thermal management of batteries is important for several reasons including thermal runaway and maintaining battery operating time. A battery pack is comprised of battery cells which are stacked together without cooling surfaces except for the pack outer surface. The central cells in the pack are therefore exposed to the risk of overheating. A model for a single specific commercial LiFePO4 battery cell is presented together with preliminary experiments and results for determination of heating sources during charging and discharging. Based on the experimental results we extract model parameters for use in the model. The experiments lead to relations for the cell surface temperature and the lump temperature of the cell. A reasonable agreement between experiments and the model is found and suggestions for further work is indicated.

Marian-Ciprian Niculu??; Christian Veje

2012-01-01T23:59:59.000Z

313

Surface Modification of LiNi0.5Mn0.3Co0.2O2 Cathode for Improved Battery Performance  

E-Print Network [OSTI]

This thesis details electrical and physical measurements of pulsed laser deposition-applied thin film coatings of Alumina, Ceria, and Yttria-stabilized Zirconia (YSZ) on a LiNi0.5Mn0.3Co0.2O2 (NMC) cathode in a Lithium ion battery. Typical NMC...

Lynch, Thomas

2012-10-19T23:59:59.000Z

314

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

315

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

316

Polyethylene-supported polyvinylidene fluoridecellulose 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 chargedischarge 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 (2.48נ10?3Scm?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

317

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:...

318

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.

319

The Influence of Catalysts on Discharge and Charge Voltages of Rechargeable LiOxygen Batteries  

E-Print Network [OSTI]

This study revealed the strong influence of carbon, Au/C, and Pt/C catalysts on the charge and discharge voltages of rechargeable LiO[subscript 2] batteries. LiO[subscript 2] single-cell measurements showed that Au/C had ...

Gasteiger, Hubert A.

320

High Energy Density Cathode for Lithium Batteries: From LiCoO_(2) to Sulfur  

E-Print Network [OSTI]

addressed, i.e. the safety hazard resulted from the Li dendrite formation on the Li metal anode and the poor cyclability arising from the polysulfides shuttle. Firstly, to overcome the safety issue, this dissertation reported a lithiated Si-S (LSS) battery...

Pu, Xiong

2014-05-29T23:59:59.000Z

Note: This page contains sample records for the topic "li ion battery" 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

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. Todays 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

322

Chemical and Electrochemical Differences in Nonaqueous LiO2 and NaO2 Batteries  

Science Journals Connector (OSTI)

The most intriguing difference between the two batteries is their respective galvanostatic charging overpotentials: a NaO2 battery exhibits a low overpotential throughout most of its charge, whereas a LiO2 battery has a low initial overpotential that continuously increases to very high voltages by the end of charge. ... Li metal was purchased from FMC, Na metal was purchased from GalliumSource, P50 Avcarb carbon paper was purchased from the Fuel Cell Store, and Whatman glass fiber filters (QM-A grade) were used as the separator. ...

Bryan D. McCloskey; Jeannette M. Garcia; Alan C. Luntz

2014-03-17T23:59:59.000Z

323

First Principles Study on the Electrochemical, Thermal and Mechanical Properties of LiCoO2 for Thin Film Rechargeable Battery  

Science Journals Connector (OSTI)

Abstract Thin film rechargeable battery has become a research hotspot because of its small size and high energy density. Lithium cobalt oxide as a typical cathode material in classical lithium ion batteries is also widely used in thin film rechargeable batteries. In this work, the electrochemical, mechanical and thermal properties of LiCoO2 were systematically investigated using the first principles method. Elastic constants under hydrostatic pressures between 0 to 40GPa were computed. Specific heat and Debye temperature at low temperature were discussed. Thermal conductivity was obtained using the imposed-flux method. The results show good agreements with experimental data and computational results in literature.

Linmin Wu; Weng Hoh Lee; Jing Zhang

2014-01-01T23:59:59.000Z

324

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

325

Pushing the Theoretical Limit of Li-CFx Batteries: A Tale of Bi-functional Electrolyte  

SciTech Connect (OSTI)

In a typical battery, electrodes deliver capacities less or equal the theoretical maxima of the electrode materials.1 The inert electrolyte functions solely as the ionic conductor without contribution to the cell capacity because of its distinct mono-function in the concept of conventional batteries. Here we demonstrate that the most energy-dense Li-CFx battery2 delivers a capacity exceeding the theoretical maximum of CFx with a solid electrolyte of Li3PS4 (LPS) that has dual functions: as the inert electrolyte at the anode and the active component at the cathode. Such a bi-functional electrolyte reconciles both inert and active characteristics through a synergistic discharge mechanism of CFx and LPS. Li3PS4 is known as an inactive solid electrolyte with a broad electrochemical window over 5 V.3 The synergy at the cathode is through LiF, the discharge product of CFx, which activates the electrochemical discharge of LPS at a close electrochemical potential of CFx. Therefore, the solid-state Li-CFx batteries output 126.6% energy beyond their theoretic limits without compromising the stability of the cell voltage. The extra energy comes from the electrochemical discharge of LPS, the inert electrolyte. This bi-functional electrolyte revolutionizes the concept of conventional batteries and opens a new avenue for the design of batteries with an unprecedentedly high energy density.

Rangasamy, Ezhiylmurugan [ORNL] [ORNL; Li, Juchuan [ORNL] [ORNL; Sahu, Gayatri [ORNL] [ORNL; Dudney, Nancy J [ORNL] [ORNL; Liang, Chengdu [ORNL] [ORNL

2014-01-01T23:59:59.000Z

326

Proceedings of the AD HOC Workshop on Ceramics for Li/FeS{sub 2} batteries  

SciTech Connect (OSTI)

Representatives from industry, the U.S. Advanced Battery Consortium (USABC), DOE, national laboratories, and other govt agencies met to develop recommendations and actions for accelerating the development of ceramic components critical to the successful introduction of the Li/FeS{sub 2} bipolar battery for electric vehicles. Most of the workshop is devoted to electrode materials, bipolar designs, separators, and bipolar plates. The bulk of this document is viewographs and is divided into: ceramics, USABC overview, SAFT`s Li/FeS{sub 2} USABC program, bipolar Li/FeS{sub 2} component development, design requirements for bipolar plates, separator design requirements, compatibility of ceramic insulators with lithium, characterization of MgO for use in separators, resistivity measurements of separators, sintered AlN separators for LiMS batteries, etc.

Not Available

1993-12-31T23:59:59.000Z

327

Optimized Operating Range for Large-Format LiFePO4/Graphite Batteries  

SciTech Connect (OSTI)

e investigated the long-term cycling performance of large format 20Ah LiFePO4/graphite batteries when they are cycled in various state-of-charge (SOC) ranges. It is found that batteries cycled in the medium SOC range (ca. 20~80% SOC) exhibit superior cycling stability than batteries cycled at both ends (0-20% or 80-100%) of the SOC even though the capcity utilized in the medium SOC range is three times as large as those cycled at both ends of the SOC. Several non-destructive techniques, including a voltage interruption approach, model-based parameter identification, electrode impedance spectra analysis, ?Q/?V analysis, and entropy change test, were used to investigate the performance of LiFePO4/graphite batteries within different SOC ranges. The results reveal that batteries at the ends of SOC exhibit much higher polarization impedance than those at the medium SOC range. These results can be attributed to the significant structural change of cathode and anode materials as revealed by the large entropy change within these ranges. The direct correlation between the polarization impedance and the cycle life of the batteries provides an effective methodology for battery management systems to control and prolong the cycle life of LiFePO4/graphite and other batteries.

Jiang, Jiuchun; Shi, Wei; Zheng, Jianming; Zuo, Pengjian; Xiao, Jie; Chen, Xilin; Xu, Wu; Zhang, Jiguang

2014-06-01T23:59:59.000Z

328

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

329

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

330

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

331

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...

332

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

333

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

334

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

335

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

336

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

337

Probing the Failure Mechanism of SnO{sub 2} Nanowires for Sodium-Ion Batteries  

SciTech Connect (OSTI)

Nonlithium metals such as sodium have attracted wide attention as a potential charge carrying ion for rechargeable batteries. Using in situ transmission electron microscopy in combination with density functional theory calculations, we probed the structural and chemical evolution of SnO{sub 2} nanowire anodes in Na-ion batteries and compared them quantitatively with results from Li-ion batteries (Huang, J. Y.; et al. Science 2010, 330, 1515-1520). Upon Na insertion into SnO{sub 2}, a displacement reaction occurs, leading to the formation of amorphous Na{sub x}Sn nanoparticles dispersed in Na{sub 2}O matrix. With further Na insertion, the Na{sub x}Sn crystallized into Na{sub 15}Sn{sub 4} (x = 3.75). Upon extraction of Na (desodiation), the Na{sub x}Sn transforms to Sn nanoparticles. Associated with the dealloying, pores are found to form, leading to a structure of Sn particles confined in a hollow matrix of Na{sub 2}O. These pores greatly increase electrical impedance, therefore accounting for the poor cyclability of SnO{sub 2}. DFT calculations indicate that Na{sup +} diffuses 30 times slower than Li{sup +} in SnO{sub 2}, in agreement with in situ TEM measurement. Insertion of Na can chemomechanically soften the reaction product to a greater extent than in lithiation. Therefore, in contrast to the lithiation of SnO{sub 2} significantly less dislocation plasticity was seen ahead of the sodiation front. This direct comparison of the results from Na and Li highlights the critical role of ionic size and electronic structure of different ionic species on the charge/discharge rate and failure mechanisms in these batteries.

Gu, Meng; Kushima, Akihiro; Shao, Yuyan; Zhang, Ji-Guang; Liu, Jun; Browning, Nigel D; Li, Ju; Wang, Chongmin

2013-09-30T23:59:59.000Z

338

Free-Standing Na2/3Fe1/2Mn1/2O2@Graphene Film for a Sodium-Ion Battery Cathode  

Science Journals Connector (OSTI)

Free-Standing Na2/3Fe1/2Mn1/2O2@Graphene Film for a Sodium-Ion Battery Cathode ... Graphene is a well-known material endowed with numerous advantages that have led to its extensive use as a conductive additive in Li-ion batteries, including superior electronic conductivity, a large surface area, and excellent mechanical strength. ...

Hongli Zhu; Kang Taek Lee; Gregory Thomas Hitz; Xiaogang Han; Yuanyuan Li; Jiayu Wan; Steven Lacey; Arthur von Wald Cresce; Kang Xu; Eric Wachsman; Liangbing Hu

2014-03-03T23:59:59.000Z

339

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

340

Investigation of the Rechargeability of Li-O2 Batteries in Non-aqueous Electrolyte  

SciTech Connect (OSTI)

In order to understand the nature of the limited cycle life and poor energy efficiency associated with the secondary Li-O2 batteries the discharge products of primary Li-O2 cells at different depth of discharge (DOD) are systematically analyzed in this work. It is revealed that if discharged to 2.0 V a small amount of Li2O2 coexist with Li2CO3 and RO-(C=O)-OLi) in alkyl carbonate-based electrolyte. Further discharging the air electrodes to below 2.0 V the amount of Li2CO3 and LiRCO3 increases significantly due to the severe electrolyte decomposition. There is no Li2O detected in this alkyl carbonate electrolyte regardless of DOD. It is also found that the alkyl carbonate based electrolyte begins to decompose at 4.0 V during charging under the combined influences from the high surface area carbon, the nickel metal current collector and the oxygen atmosphere. Accordingly the impedance of the Li-O2 cell continues to increase after each discharge and recharge process indicating a repeated plating of insoluble lithium salts on the carbon surface. Therefore the whole carbon electrode becomes completely insulated only after a few cycles and loses the function of providing active tri-phase regions for the Li-oxygen batteries.

Xiao, Jie; Hu, Jian Z.; Wang, Deyu; Hu, Dehong; Xu, Wu; Graff, Gordon L.; Nie, Zimin; Liu, Jun; Zhang, Jiguang

2011-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "li ion battery" 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

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

342

Elaboration and Characterization of a Free Standing LiSICON Membrane for Aqueous Lithium-Air Battery  

E-Print Network [OSTI]

: Metal-air battery, Lithium anode, Li2O - Al2O3 - TiO2 - P2O5 system, LiPON, Solid electrolyte 1. Introduction Metal-air batteries are based on the use of a metal negative electrode in combination-sur-Loing, France Abstract In order to develop a LISICON separator for an aqueous lithium-air battery, a thin

Paris-Sud XI, Université de

343

Li ion diffusion mechanism in the crystalline electrolyte -Li3PO4  

E-Print Network [OSTI]

battery3 Solid state electrolyte could be made very thin to overcome to the low ion- conductivity et al., Solid State Ionics 53-56, 647 (1992). 3. http://www.ms.ornl.gov/researchgroups/Functional/BatteryV)material kTEA e T K T / )( - = 1. B. Wang et al., J. of Solid State Chemistry 115, 313 (1995). 2. J. B. Bates

Holzwarth, Natalie

344

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

345

Significant Cost Improvement of Li-Ion Cells Through Non-NMP...  

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

Significant Cost Improvement of Li-Ion Cells Through Non-NMP Electrode Coating, Direct Separator Coating, and Fast Formation Technologies Significant Cost Improvement of Li-Ion...

346

Structural Underpinnings of the Enhanced Cycling Stability upon Al-Substitution in LiNi[subscript 0.45]Mn[subscript 0.45]Co[subscript 0.1?y]Al[subscript y]O[subscript 2] Positive Electrode Materials for Li-ion Batteries  

SciTech Connect (OSTI)

Single-phase LiNi{sub 0.45}Mn{sub 0.45}Co{sub 0.1-y}Al{sub y}O{sub 2} layered oxide materials with 0 {<=} y {<=} 0.10 were prepared using the glycine-nitrate combustion method. Al-substitution has a minimal effect on the defect concentration and rate capability of the materials, but raises the operating voltage and reduces the capacity fade of the materials during prolonged cycling compared to the unsubstituted system. In situ X-ray diffraction suggests the presence of Al has a significant structural impact during battery operation. It acts to limit the changes in lattice parameters observed during electrochemical charging and cycling of the materials. High-resolution X-ray diffraction reveals structural distortions in the transition metal layers of as-synthesized powders with high Al-contents, as well as a structural evolution seen in all materials after cycling.

Conry, Thomas E.; Mehta, Apurva; Cabana, Jordi; Doeff, Marca M. (UCB); (SSRL)

2012-10-23T23:59:59.000Z

347

Synthesis and characterization of Pt-doped LiFePO4/C composites using the solgel method as the cathode material in lithium-ion batteries  

Science Journals Connector (OSTI)

The LiFePO4 and LiFe0.96Pt0.04PO4 samples were synthesized using the solgel method. The precursor materials were Li(CH3COO) (lithium acetate, Alfa Aesar), Fe(NO3)39H2O (iron nitrate, Sigma Aldrich), H2PtCl66H2

M. Talebi-Esfandarani; O. Savadogo

2014-05-01T23:59:59.000Z

348

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 600C. 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 147.6mAhg?1 before modification to 160.8mAhg?1 after modification for the first discharge at the rate of 2C. After 200 chargedischarge cycles, when discharge rate was increased from 2C to 5C to 10C, modified battery capacity was reduced from 152.4mAhg?1 to 127.9mAhg?1 to 106mAhg?1. When the ratio was reduced from 10C to 5C to 2C, 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

349

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

350

Characterization, average and electronic structures during chargedischarge cycle in 0.6Li2MnO30.4Li(Co1/3Ni1/3Mn1/3)O2 solid solution of a cathode active material for Li-ion battery  

Science Journals Connector (OSTI)

Abstract The 0.6Li2MnO30.4Li(Co1/3Ni1/3Mn1/3)O2 solid solution was prepared by the co-precipitation method. The average structure analysis based on the Rietveld method using neutron diffraction was carried out. As a result, the charging process eliminated Li from the transition metal layer as well as the lithium layer, and the dominant elimination of Li was suggested to be from the 2b site (S.G.; C2/m). The amount of the cation mixing of Ni at the 2c site in the Li layer tended to increase from the first to fifth cycles. It was suggested that Co moved to the 4g site after discharge, but to the 2b site after charging. On the other hand, the opposite tendency was shown for Mn. In addition, an electronic-structure analysis based on the Maximum Entropy Method was carried out. The covalent linkage increased in 4h-4i and 4h-8j between the first and fifth charge processes. It was also found that most of the Li in the 4h site was not extracted at the fifth cycle compared to the first cycle.

Yasushi Idemoto; Ryosuke Kawai; Naoya Ishida; Naoto Kitamura

2015-01-01T23:59:59.000Z

351

Technological assessment and evaluation of high power batteries and their commercial values  

E-Print Network [OSTI]

Lithium Ion (Li-ion) battery technology has the potential to compete with the more matured Nickel Metal Hydride (NiMH) battery technology in the Hybrid Electric Vehicle (HEV) energy storage market as it has higher specific ...

Teo, Seh Kiat

2006-01-01T23:59:59.000Z

352

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...

353

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

354

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...

355

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

356

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

357

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.

358

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.

359

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.

360

Air Electrode Design for Sustained High Power Operation of Li/air Batteries  

SciTech Connect (OSTI)

The rapid development of portable electronic devices increasingly requires much more energy to support advanced functions. However, currently available batteries do not meet the high energy requirement of these devices. Metal/air batteries, especially Li/air batteries, have a much higher specific energy than most other available batteries, but their power rate is limited by the accumulation of reaction products in the air electrode. Several approaches to improve the power rate of Li/air batteries have been analyzed in this work, including adjustment of air electrode porosity and catalyst reactivity distributions to minimize diffusion limitations and maximize air electrode material utilization. An interconnected dual pore system (one catalyzed and one noncatalyzed) is proposed to improve oxygen transport into the inner regions of the air electrode, but this approach alone cannot supply high power for long term applications. A time-release multiple catalyst approach is analyzed to provide temporal release of reactivity in the air electrode. When coupled with the dual pore configuration and catalysts with high reactivities, the time-release catalyst concept can extend the duration of higher powers to longer times, and result in maximum utilization of air electrode materials.

Williford, Ralph E.; Zhang, Jiguang

2009-08-31T23:59:59.000Z

Note: This page contains sample records for the topic "li ion battery" 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

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

362

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

363

Preparation and characterization of macroporous Li1.2Mn0.54Ni0.13Co0.13O2 cathode material for lithium-ion batteries via aerogel template  

Science Journals Connector (OSTI)

Abstract Macroporous Li1.2Mn0.54Ni0.13Co0.13O2 cathode materials with high crystallinity and hexagonal ordering are synthesized by aerogel template followed by solid state reaction. High discharge capacities of 244.0mAhg?1 and 153.9mAhg?1 are obtained for the Li-rich layered oxide synthesized at 800C at current densities of 200mAg?1 and 2000mAg?1 between 2.0V and 4.8V. Increasing the synthesis temperature to 900C, the macroporous Li1.2Mn0.54Ni0.13Co0.13O2 delivers a high discharge capacity of 220.2mAhg?1 at a current density of 200mAg?1 with acapacity retention of 89.1% after 50 cycles, 129.8mAhg?1 at a current density of 2000mAg?1 and almost no capacity fading after 120 cycles. The diffusion coefficients of Li+ in the Li-rich layered oxide determined by galvanostatic intermittent titration technique are in the range of 5.0נ10?18?8.0נ10?14cm2s?1. Electrochemical impedance spectroscopy indicates that the macroporous structure with good particle contact of the layered oxide can improve its rate capability and cyclic stability.

S.J. Shi; J.P. Tu; Y.Y. Tang; Y.Q. Zhang; X.L. Wang; C.D. Gu

2013-01-01T23:59:59.000Z

364

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

365

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

366

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

367

Phylion Battery | Open Energy Information  

Open Energy Info (EERE)

Vehicles Product: Jiangsu-province-based producer of high-power high-energy Li-ion batteries for such uses as electric bicycles, hybrid vehicles, lighting, medical equipment,...

368

Effects of a graphene nanosheet conductive additive on the high-capacity lithium-excess manganesenickel 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

369

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.

370

Lithium-active molybdenum trioxide coated LiNi0.5Co0.2Mn0.3O2 cathode material with enhanced electrochemical properties for lithium-ion batteries  

Science Journals Connector (OSTI)

Abstract LiNi0.5Co0.2Mn0.3O2 cathode material was coated with MoO3 via a wet coating process. X-ray diffraction patterns show that the coating surface is composed of MoO3 and Li2MoO4. The 3wt.% MoO3 coated LiNi0.5Co0.2Mn0.3O2 cathode (Li2MoO4 is treated as equivalent mole of MoO3) exhibits the best improved cycling performance. It performs a capacity retention of 90.9% after 100 cycles while that of the pristine material is only 82.8%. After being coated by 3wt.% MoO3, the rate performance is also greatly enhanced and the charge transfer resistance is greatly decreased. The improvement of electrochemical performance is related to the fact that the coating layer diminishes the side reactions between the cathode and the electrolyte.

Feng Wu; Jun Tian; Yuefeng Su; Yibiao Guan; Yi Jin; Zhao Wang; Tao He; Liying Bao; Shi Chen

2014-01-01T23:59:59.000Z

371

Electrochemical performance and thermal stability of GaF3-coated LiNi0.5Mn1.5O4 as 5V cathode materials for lithium ion batteries  

Science Journals Connector (OSTI)

Electrodes were prepared by pressing a mixture of 85% active materials, 10% acetylene black, and 5...?1 LiPF6...dissolved in EC:EMC:DMC (1:1:1 by volume). 2016 coin-type cells were assembled in a glove box and ...

Y. Y. Huang; X. L. Zeng; C. Zhou; P. Wu; D. G. Tong

2013-01-01T23:59:59.000Z

372

Synthesis and electrochemical performance of LiNi0.6Co0.2Mn0.2O2/reduced graphene oxide cathode materials for lithium-ion batteries  

Science Journals Connector (OSTI)

A LiNi0.6Co0.2Mn0.2O2/reduced graphene oxide (RGO) composite with RGO content of 1.2% was prepared by a simple spray-drying method instead of high-energy ball milling method. The composite has been characterized...

Peng Yue; Zhixing Wang; Qian Zhang; Guochun Yan; Huajun Guo; Xinhai Li

2013-10-01T23:59:59.000Z

373

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

Science Journals Connector (OSTI)

Abstract Due to well-known JahnTeller distortion in spinel LiMn1.5Ni0.5O4, it can only be reversibly electrochemically cycled between 3 and 4.8V with a limited reversible capacity of ?147mAhg?1. This study intends to embed the layer-structured Li2MnO3 nanodomains into LiMn1.5Ni0.5O4 spinel matrix so that the JahnTeller 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, 0.3Li2MnO30.7LiMn1.5Ni0.5O4 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 JahnTeller distortion occurs during the cycling of the 0.3Li2MnO30.7LiMn1.5Ni0.5O4 composite. Additionally, 0.3Li2MnO30.7LiMn1.5Ni0.5O4 possesses a high energy density of ?700Whkg?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

374

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

375

Performance study of commercial LiCoO2 and spinel-based Li-ion cells  

E-Print Network [OSTI]

Performance study of commercial LiCoO2 and spinel-based Li-ion cells P. Ramadass, Bala Haran, Ralph White, Branko N. Popov* Department of Chemical Engineering, University of South Carolina, Columbia, SC 29208, USA Received 20 April 2002; accepted 29 April 2002 Abstract The performance of Cell-Batt1 Li-ion

Popov, Branko N.

376

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

377

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

378

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

379

Conducting polymer-doped polyprrrole as an effective cathode catalyst for Li-O{sub 2} batteries  

SciTech Connect (OSTI)

Graphical abstract: - Highlights: Doped polypyrrole as cathode catalysts for Li-O{sub 2} batteries. Polypyrrole has an excellent redox capability to activate oxygen reduction. Chloride doped polypyrrole demonstrated an improved catalytic performance in Li-O{sub 2} batteries. - Abstract: Polypyrrole conducting polymers with different dopants have been synthesized and applied as the cathode catalyst in Li-O{sub 2} batteries. Polypyrrole polymers exhibited an effective catalytic activity towards oxygen reduction in lithium oxygen batteries. It was discovered that dopant significantly influenced the electrochemical performance of polypyrrole. The polypyrrole doped with Cl{sup ?} demonstrated higher capacity and more stable cyclability than that doped with ClO{sub 4}{sup ?}. Polypyrrole conducting polymers also exhibited higher capacity and better cycling performance than that of carbon black catalysts.

Zhang, Jinqiang; Sun, Bing [Centre for Clean Energy Technology, School of Chemistry and Forensic Science, University of Technology Sydney, Broadway, Sydney, NSW 2007 (Australia); Ahn, Hyo-Jun [School of Materials Science and Engineering, Gyeongsang National University, Jinju (Korea, Republic of); Wang, Chengyin [College of Chemistry and Chemical Engineering, Yangzhou University, 180 Si-Wang-Ting Road, Yangzhou 225002 (China); Wang, Guoxiu, E-mail: Guoxiu.Wang@uts.edu.au [Centre for Clean Energy Technology, School of Chemistry and Forensic Science, University of Technology Sydney, Broadway, Sydney, NSW 2007 (Australia)

2013-12-15T23:59:59.000Z

380

N-Doped GrapheneVO2(B) Nanosheet-Built 3D Flower Hybrid for Lithium Ion Battery  

Science Journals Connector (OSTI)

N-Doped GrapheneVO2(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

Note: This page contains sample records for the topic "li ion battery" 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

Batteries and Fuel Cells  

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

Collage of electric cars, plug, battery research lab Collage of electric cars, plug, battery research lab Batteries and Fuel Cells EETD researchers study the basic science and development of advanced batteries and fuel cells for transportation, electric grid storage, and other stationary applications. This research is aimed at developing more environmentally friendly technologies for generating and storing energy, including better batteries and fuel cells. Li-Ion and Other Advanced Battery Technologies Research conducted here on battery technology is aimed at developing low-cost rechargeable advanced electrochemical batteries for both automotive and stationary applications. The goal of fuel cell research is to provide the technologies for the successful commercialization of polymer-electrolyte and solid oxide fuel

382

Thermal Instability of Olivine-Type LiMnP04 Cathodes  

E-Print Network [OSTI]

thermal stability of LiFePC^ and its charged counterpart, FeP04, have been instrumental in its commercialization as a lithium ion battery

Chen, Guoying

2010-01-01T23:59:59.000Z

383

Adaptable SiliconCarbon Nanocables Sandwiched between Reduced Graphene Oxide Sheets as Lithium Ion Battery Anodes  

Science Journals Connector (OSTI)

Adaptable SiliconCarbon 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

384

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

385

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

386

Ab initio prediction of thermodynamics in alkali metal-air batteries  

E-Print Network [OSTI]

Electric vehicles ("EVs") require high-energy-density batteries with reliable cyclability and rate capability. However, the current state-of-the-art Li-ion batteries only exhibit energy densities near ~150 Wh/kg, limiting ...

Kang, ShinYoung

2014-01-01T23:59:59.000Z

387

Synthesis of carbon coated Li{sub 3}V{sub 2}(PO{sub 4}){sub 3}/reduced graphene oxide composite for high-performance lithium ion batteries  

SciTech Connect (OSTI)

Graphical abstract: Display Omitted Highlights: ? Carbon coated LVP nanoparticles strongly anchored on rGO surface are prepared. ? LVP@C/rGO exhibits high electrical conductivity. ? LVP@C/rGO shows excellent cycleability and rate capability between 3.0 and 4.8 V. -- Abstract: The carbon coated Li{sub 3}V{sub 2}(PO{sub 4}){sub 3}/reduced graphene oxide (LVP@C/rGO) composite is successfully synthesized by a conventional solid-state reaction, which is easily scaled up. LVP grains coated with a thin layer (?8 nm) of carbon are adhered to the surface of the rGO layer and/or enwrapped into the rGO sheets, which can facilitate the fast charge transfer within the whole electrode and to the current collector. As a cathode material, the LVP@C/rGO electrode delivers an initial discharge capacity of 177 mAh g{sup ?1} at 0.5 C with capacity retention of 96% during the 50th cycle in a wide voltage range of 3.04.8 V. A superior rate capability is also achieved, e.g., exhibiting a discharge capacity of 96 mAh g{sup ?1} at a high C rate of 10 C.

Wu, Keliang, E-mail: linxin66@126.com [Department of Petroleum and Chemical, Bayingolin Vocational and Technical College, Xinjiang Uygur Autonomous Region 841000 (China)] [Department of Petroleum and Chemical, Bayingolin Vocational and Technical College, Xinjiang Uygur Autonomous Region 841000 (China); Yang, Jinpeng [Department of Petroleum and Chemical, Bayingolin Vocational and Technical College, Xinjiang Uygur Autonomous Region 841000 (China)] [Department of Petroleum and Chemical, Bayingolin Vocational and Technical College, Xinjiang Uygur Autonomous Region 841000 (China)

2013-02-15T23:59:59.000Z

388

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.

389

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 ......

390

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...

391

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...

392

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

393

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

394

Li corrosion resistant glasses for headers in ambient temperature Li batteries  

DOE Patents [OSTI]

Glass compositions containing 10 to 50 mol% CaO, 10 to 50 mol% Al/sub 2/O/sub 3/, 30 to 60 mol% B/sub 2/O/sub 3/, and 0 to 30 mol% MgO are provided. These compositions are capable of forming a stable glass-to-metal seal possessing electrical insulating properties for use in a lithium battery. Also provided are lithium cells containing a stainless steel body and molybdenum center pin electrically insulated by means of a seal produced according to the invention.

Hellstrom, E.E.; Watkins, R.D.

1985-10-11T23:59:59.000Z

395

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 800C under an ammonia atmosphere. It is found by scanning and transmission electron microscopy that MoN nanoparticles ranging from 20 to 40nm 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

396

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

397

Batteries: Overview of Battery Cathodes  

SciTech Connect (OSTI)

The very high theoretical capacity of lithium (3829 mAh/g) provided a compelling rationale from the 1970's onward for development of rechargeable batteries employing the elemental metal as an anode. The realization that some transition metal compounds undergo reductive lithium intercalation reactions reversibly allowed use of these materials as cathodes in these devices, most notably, TiS{sub 2}. Another intercalation compound, LiCoO{sub 2}, was described shortly thereafter but, because it was produced in the discharged state, was not considered to be of interest by battery companies at the time. Due to difficulties with the rechargeability of lithium and related safety concerns, however, alternative anodes were sought. The graphite intercalation compound (GIC) LiC{sub 6} was considered an attractive candidate but the high reactivity with commonly used electrolytic solutions containing organic solvents was recognized as a significant impediment to its use. The development of electrolytes that allowed the formation of a solid electrolyte interface (SEI) on surfaces of the carbon particles was a breakthrough that enabled commercialization of Li-ion batteries. In 1990, Sony announced the first commercial batteries based on a dual Li ion intercalation system. These devices are assembled in the discharged state, so that it is convenient to employ a prelithiated cathode such as LiCoO{sub 2} with the commonly used graphite anode. After charging, the batteries are ready to power devices. The practical realization of high energy density Li-ion batteries revolutionized the portable electronics industry, as evidenced by the widespread market penetration of mobile phones, laptop computers, digital music players, and other lightweight devices since the early 1990s. In 2009, worldwide sales of Li-ion batteries for these applications alone were US$ 7 billion. Furthermore, their performance characteristics (Figure 1) make them attractive for traction applications such as hybrid electric vehicles (HEVs), plug-in hybrid electric vehicles (PHEVs), and electric vehicles (EVs); a market predicted to be potentially ten times greater than that of consumer electronics. In fact, only Liion batteries can meet the requirements for PHEVs as set by the U.S. Advanced Battery Consortium (USABC), although they still fall slightly short of EV goals. In the case of Li-ion batteries, the trade-off between power and energy shown in Figure 1 is a function both of device design and the electrode materials that are used. Thus, a high power battery (e.g., one intended for an HEV) will not necessarily contain the same electrode materials as one designed for high energy (i.e., for an EV). As is shown in Figure 1, power translates into acceleration, and energy into range, or miles traveled, for vehicular uses. Furthermore, performance, cost, and abuse-tolerance requirements for traction batteries differ considerably from those for consumer electronics batteries. Vehicular applications are particularly sensitive to cost; currently, Li-ion batteries are priced at about $1000/kWh, whereas the USABC goal is $150/kWh. The three most expensive components of a Li-ion battery, no matter what the configuration, are the cathode, the separator, and the electrolyte. Reduction of cost has been one of the primary driving forces for the investigation of new cathode materials to replace expensive LiCoO{sub 2}, particularly for vehicular applications. Another extremely important factor is safety under abuse conditions such as overcharge. This is particularly relevant for the large battery packs intended for vehicular uses, which are designed with multiple cells wired in series arrays. Premature failure of one cell in a string may cause others to go into overcharge during passage of current. These considerations have led to the development of several different types of cathode materials, as will be covered in the next section. Because there is not yet one ideal material that can meet requirements for all applications, research into cathodes for Li-ion batteries is, as of this writ

Doeff, Marca M

2010-07-12T23:59:59.000Z

398

Ab initio structure search and in situ 7Li NMR studies of discharge products in the Li-S battery system  

E-Print Network [OSTI]

spectrometer in screw-cap NMR tubes. Sealed capillaries filled with chloroform-d were placed in the NMR tube along with the sample to achieve a lock without sacrificing the integrity of the polysulfide solu- tions. Bag cells were prepared for in situ NMR... from which the CQ values can be extracted. We have used this methodology to analyze the decomposition products formed in a Li-air battery.42 The Li+ environments in crystalline Li2S are cu- bic, and no satellite transitions are expected (Figure 2b...

See, Kimberly A.; Leskes, Michal; Griffin, John M.; Britto, Sylvia; Matthews, Peter D.; Emly, Alexandra; Van der Ven, Anton; Wright, Dominic S.; Morris, Andrew J.; Grey, Clare P.; Seshadri, Ram

2014-01-01T23:59:59.000Z

399

Development of Li+ alumino-silicate ion source  

SciTech Connect (OSTI)

To uniformly heat targets to electron-volt temperatures for the study of warm dense matter, one strategy is to deposit most of the ion energy at the peak of energy loss (dE/dx) with a low (E< 5 MeV) kinetic energy beam and a thin target[1]. Lower mass ions have a peak dE/dx at a lower kinetic energy. To this end, a small lithium (Li+) alumino-silicate source has been fabricated, and its emission limit has been measured. These surface ionization sources are heated to 1000-1150 C where they preferentially emit singly ionized alkali ions. Alumino-silicates sources of K+ and Cs+ have been used extensively in beam experiments, but there are additional challenges for the preparation of high-quality Li+ sources: There are tighter tolerances in preparing and sintering the alumino-silicate to the substrate to produce an emitter that gives uniform ion emission, sufficient current density and low beam emittance. We report on recent measurements ofhigh ( up to 35 mA/cm2) current density from a Li+ source. Ion species identification of possible contaminants is being verified with a Wien (E x B) filter, and via time-of-flight.

Roy, P.K.; Seidl, P.A.; Waldron, W.; Greenway, W.; Lidia, S.; Anders, A.; Kwan, J.

2009-04-21T23:59:59.000Z

400

First Principles Prediction of Nitrogen-doped Carbon Nanotubes as a High-Performance Cathode for Li-S Batteries  

SciTech Connect (OSTI)

The insulating nature of sulfur and the solubility of the polysulfide in organic electrolyte are two main factors that limit the application of lithium sulfur (Li-S) battery systems. Enhancement of Li conductivity, identification of a strong adsorption agent of polysulfides and the improvement of the whole sulfur-based electrode are of great technological importance. The diffusion of Li atoms on the outer-wall, inner-wall and inter-wall spaces in nitrogen-doped double-walled carbon nanotubes (CNTs) and penetrations of Li and S atoms through the walls are studied using density functional theory. We find that N-doping does not alternate the diffusion behaviors of Li atoms throughout the CNTs, but the energy barrier for Li atoms to penetrate the wall is greatly decreased by N-doping (from ~9.0 eV to ~ 1.0 eV). On the other hand, the energy barrier for S atoms to penetrate the wall remains very high, which is caused by the formation of the chemical bonds between the S and nearby N atoms. The results indicate that Li atoms are able to diffuse freely, whereas S atoms can be encapsulated inside the N-doped CNTs, suggesting that the N-doped CNTs can be potentially used in high performance Li-S batteries.

Wang, Zhiguo; Niu, Xinyue; Xiao, Jie; Wang, Chong M.; Liu, Jun; Gao, Fei

2013-07-16T23:59:59.000Z

Note: This page contains sample records for the topic "li ion battery" 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

GrapheneNanotubeIron Hierarchical Nanostructure as Lithium Ion Battery Anode  

Science Journals Connector (OSTI)

GrapheneNanotubeIron Hierarchical Nanostructure as Lithium Ion Battery Anode ... In this study, we report a novel route via microwave irradiation to synthesize a bio-inspired hierarchical graphenenanotubeiron 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

402

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

403

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

404

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

405

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

406

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

407

Abnormal Cyclibility in Ni@Graphene CoreShell and YolkShell Nanostructures for Lithium Ion Battery Anodes  

Science Journals Connector (OSTI)

Abnormal Cyclibility in Ni@Graphene CoreShell and YolkShell 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

408

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

409

Boosting batteries | EMSL  

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

Boosting batteries Boosting batteries Broad use possible for lithium-silicon batteries Findings could pave the way for widespread adoption of lithium ion batteries for applications...

410

Depolarized and Fully Active Cathode Based on Li(Ni0.5Co0.2Mn0.3)O2 Embedded in Carbon Nanotube Network for Advanced Batteries  

Science Journals Connector (OSTI)

In this design, the CNT network simultaneously served as an electron transport pathway as well as an active cathode ingredient besides NCM523, showing reversible electrochemical activity during the Li ion battery operation in the presence of a high voltage electrolyte. ... (b) Voltage curves of NCM cathode calculated based on the first-principle method, and the experimental data obtained from the filtration NCM/CNT cathodes are shown in it for comparison. ... In conclusion, we have developed a fully active and depolarized composite cathode material based on NCM523 particles embedded in the interwoven 3D CNT network, which serves the dual functions of both storing Li ions as the active materials and providing the superhighway for the electron and Li ion migration. ...

Zhongzhen Wu; Xiaogang Han; Jiaxin Zheng; Yi Wei; Ruimin Qiao; Fei Shen; Jiaqi Dai; Liangbing Hu; Kang Xu; Yuan Lin; Wanli Yang; Feng Pan

2014-06-30T23:59:59.000Z

411

Science Highlight July 2011 Better Batteries through Nanoscale 3D Chemical Imaging  

E-Print Network [OSTI]

to hierarchical structures found in energy materials such as battery electrodes, fuel cells, and catalytic systems Science Highlight ­ July 2011 Better Batteries through Nanoscale 3D Chemical Imaging Concerns battery technology. Although Li-ion batteries, crucial in the boom of portable electronics, stand

Wechsler, Risa H.

412

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

413

Investigation on the Charging Process of Li2O2-Based Air Electrodes in Li-O2 Batteries with Organic Carbonate Electrolytes  

SciTech Connect (OSTI)

The charge processes of Li-O2 batteries were investigated by analyzing the gas evolution by in situ gas chromatography-mass spectroscopy (GC/MS) technique. The mixture of Li2O2/Fe3O4/Super P carbon/polyvinylidene fluoride (PVDF) was used as the starting air electrode material and 1M LiTFSI in carbonate-based solvents was used as electrolyte. It was found that Li2O2 is reactive to 1-methyl-2-pyrrolidinone and PVDF binder used in the electrode preparation. During the 1st charge (up to 4.6 V), O2 was the main component in the gases released. The amount of O2 measured by GC/MS was consistent with the amount of Li2O2 decomposed in the electrochemical process as measured by the charge capacity, indicative of the good chargeability of Li2O2. However, after the cell was discharged to 2.0 V in O2 atmosphere and re-charged to ~ 4.6 V in the second cycle, CO2 was dominant in the released gases. Further analysis of the discharged air electrode by X-ray diffraction and Fourier transform infrared spectroscopy indicated that lithium-containing carbonate species (lithium alkyl carbonate and/or Li2CO3) were the main reaction products. Therefore, compatible electrolyte and electrodes as well as the electrode preparation procedures need to be developed for long term operation of rechargeable Li-O2 or Li-air batteries.

Xu, Wu; Viswanathan, Vilayanur V.; Wang, Deyu; Towne, Silas A.; Xiao, Jie; Nie, Zimin; Hu, Dehong; Zhang, Jiguang

2011-04-15T23:59:59.000Z

414

Ultrafine tin oxide on reduced graphene oxide as high-performance anode for sodium-ion batteries  

Science Journals Connector (OSTI)

Abstract Na-ion Battery is attractive alternative to Li-ion battery due to the natural abundance of sodium resource. Searching for suitable anode materials is one of the critical issues for Na-ion battery due to the low Na-storage activity of carbon materials. In this work, we synthesized a nanohybrid anode consisting of ultrafine SnO2 anchored on few-layered reduced graphene oxide (rGO) by a facile hydrothermal route. The SnO2/rGO hybrid exhibits a high capacity, long cycle life and good rate capability. The hybrid can deliver a high charge capacity of 324mAhgSnO2?1 at 50mAg?1. At 1600mAg?1 (2.4C), it can still yield a charge capacity of 200mAhgSnO2?1. After 100 cycles at 100mAg?1, the hybrid can retain a high charge capacity of 369mAhgSnO2?1. X-ray photoelectron spectroscopy, ex situ transmission electron microscopy and electrochemical impedance spectroscopy were used to investigate the origin of the excellent electrochemical Na-storage properties of SnO2/rGO.

Yandong Zhang; Jian Xie; Shichao Zhang; Peiyi Zhu; Gaoshao Cao; Xinbing Zhao

2015-01-01T23:59:59.000Z

415

Performance-degradation model for Li4Ti5O12-based battery cells used in wind power applications  

E-Print Network [OSTI]

1 Performance-degradation model for Li4Ti5O12-based battery cells used in wind power applications D the negative impact of wind power grid integration on the power system stability, which is caused. INTRODUCTION Future wind power plants (WPPs) are intended to function like todays conventional power plants

Teodorescu, Remus

416

Crystal Orientation Tuning of LiFePO4 Nanoplates for High Rate Lithium Battery Cathode Materials  

Science Journals Connector (OSTI)

For an electrochemical cell to deliver capacity at high rate, all parts of the Li+-electron path between the anode and the cathode active material have to be capable of sustaining this rate. ... Materials with the olivine LixMPO4 structure form an important class of rechargeable battery cathodes. ...

Li Wang; Xiangming He; Wenting Sun; Jianlong Wang; Yadong Li; Shoushan Fan

2012-10-17T23:59:59.000Z

417

Aqueous Cathode for Next-Generation Alkali-Ion Batteries  

Science Journals Connector (OSTI)

The aqueous cathode in the flow-through mode can be individually stored in a fuel tank, which reduces the volume of the battery and increases the design flexibility of the battery structure, as shown in Figure 1. ... Unlike previous lithium?water batteries, the aqueous cathode is not plagued by H2 evolution from the solution, and the battery is efficiently rechargeable. ...

Yuhao Lu; John B. Goodenough; Youngsik Kim

2011-03-28T23:59:59.000Z

418

Modeling and simulation of Li-ion conduction in poly(ethylene oxide)  

E-Print Network [OSTI]

/discharge voltage depends on the current and resistance of all battery components. In most solid-state lithium as a solid polymer electrolyte (SPE) in thin-film batteries and its ionic conductivity is a key parameter-ion batteries, a thin-layer (0.02­0.2 mm) solid polymer electrolyte (SPE) is sandwiched between two electrodes

Averbuch, Amir

419

Improved Positive Electrode Materials for Li-ion Batteries  

E-Print Network [OSTI]

This causes the material to undergo a phase change, however,7b) materials undergo an observable phase change or generatey=0.05 materials undergo an observable phase change upon the

Conry, Thomas Edward

2012-01-01T23:59:59.000Z

420

Streamlining the Optimization of Li-Ion Battery Electrodes  

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.

Note: This page contains sample records for the topic "li ion battery" 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

Graphene/metal Oxide Nanocomposites for Li-ion Batteries  

Science Journals Connector (OSTI)

Our work focuses on preparing the graphene/metal oxide nanocomposites by facile methold and exploring the graphene/metal oxide composites with unique structural or compositions for...

Liang, Junfei; Li, Lidong; Guo, Lin

422

High Voltage Electrolytes for Li-ion Batteries  

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

effective than HFiP in improving cycle life in LNMOgraphite cells at RT. - Synthesized Al(HFiP) additives with electron deficient center Al - Calculated oxidation potential of...

423

2010 DOE, Li-Ion Battery Cell Manufacturing  

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.

424

High Voltage Electrolytes for Li-ion Batteries  

Broader source: Energy.gov [DOE]

2013 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting

425

Construction of a Li Ion Battery (LIB) Cathode Production Plant...  

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

Customers. Construct our Production Facility in Elyria, Ohio as Part of the Recovery Act Program. "This presentation does not contain any proprietary, confidential, or...

426

Construction of a Li Ion Battery (LIB) Cathode Production Plant...  

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

1 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program Annual Merit Review and Peer Evaluation arravt008esdicarlo2011p.pdf More Documents & Publications...

427

High Voltage Electrolytes for Li-ion Batteries  

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

below 4.5 V; * Sulfone-based solvents showed anodic stability up to 5.8 V but: * SEI chemistry from reduction of sulfones does not provide protection of graphitic anodes * Most...

428

Construction of a Li Ion Battery (LIB) Cathode Production Plant...  

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

Review and Peer Evaluation Meeting arravt007esconner2012p.pdf More Documents & Publications Saft Factory of the Future Saft Factory of the Future Saft Factory of the Future...

429

Physical properties of Li ion conducting polyphosphazene based polymer electrolytes  

SciTech Connect (OSTI)

We report a systematic study of the transport properties and the underlying physical chemistry of some polyphosphazene (PPhz)-based polymer electrolytes. We synthesized MEEP and variants which employed mixed combinations of different length oxyethylene side-chains. We compare the conductivity and ion-ion interactions in polymer electrolytes obtained with lithium triflate and lithium bis(trifluoromethanesulfonyl)imide (TFSI) salts added to the polymer. The combination of the lithium imide salt and MEEP yields a maximum conductivity of 8 x 10{sup -5} {Omega}{sup -1} cm{sup -1} at room temperature at a salt loading of 8 monomers per lithium. In one of the mixed side-chain variations, a maximum conductivity of 2 x 10{sup -4} {Omega}{sup -1} cm{sup -1} was measured at the same molar ratio. Raman spectral analysis shows some ion aggregation and some polymer - ion interactions in the PPhz-LiTFSI case but much less than observed with Li CF{sub 3}SO{sub 3}. A sharp increase in the Tg as salt is added corresponds to concentrations above which the conductivity significantly decreases and ion associations appear.

Sanderson, S.; Zawodzinski, T.; Hermes, R.; Davey, J.; Dai, Hongli

1996-12-31T23:59:59.000Z

430

A graphene foam electrode with high sulfur loading for flexible and high energy Li-S batteries  

Science Journals Connector (OSTI)

Abstract Lithium-sulfur (Li-S) batteries have attracted great attention as next-generation high specific energy density storage devices. However, the low sulfur loading in the cathode for Li-S battery greatly offsets its advantage in high energy density and limits the practical applications of such battery concepts. Flexible energy storage devices are also becoming increasingly important for future applications but are limited by the lack of suitable lightweight electrode materials with robust electrochemical performance under cyclic mechanical strain. Here, we proposed an effective strategy to obtain flexible Li-S battery electrodes with high energy density, high power density, and long cyclic life by adopting graphene foam-based electrodes. Graphene foam can provide a highly electrically conductive network, robust mechanical support and sufficient space for a high sulfur loading. The sulfur loading in graphene foam-based electrodes can be tuned from 3.3 to 10.1mgcm?2. The electrode with 10.1mgcm?2 sulfur loading could deliver an extremely high areal capacity of 13.4mAhcm?2, much higher than the commonly reported Li-S electrodes and commercially used lithium cobalt oxide cathode with a value of ~34mAhcm?2. Meanwhile, the high sulfur-loaded electrodes retain a high rate performance with reversible capacities higher than 450mAhg?1 under a large current density of 6Ag?1 and preserve stable cycling performance with ~0.07% capacity decay per cycle over 1000 cycles. These impressive results indicate that such electrodes could enable high performance, fast-charging, and flexible Li-S batteries that show stable performance over extended charge/discharge cycling.

Guangmin Zhou; Lu Li; Chaoqun Ma; Shaogang Wang; Ying Shi; Nikhil Koratkar; Wencai Ren; Feng Li; Hui-Ming Cheng

2015-01-01T23:59:59.000Z

431

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

432

Models for Battery Reliability and Lifetime  

SciTech Connect (OSTI)

Models describing battery degradation physics are needed to more accurately understand how battery usage and next-generation battery designs can be optimized for performance and lifetime. Such lifetime models may also reduce the cost of battery aging experiments and shorten the time required to validate battery lifetime. Models for chemical degradation and mechanical stress are reviewed. Experimental analysis of aging data from a commercial iron-phosphate lithium-ion (Li-ion) cell elucidates the relative importance of several mechanical stress-induced degradation mechanisms.

Smith, K.; Wood, E.; Santhanagopalan, S.; Kim, G. H.; Neubauer, J.; Pesaran, A.

2014-03-01T23:59:59.000Z

433

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

434

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

435

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

436

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

437

Synthesis, Characterization and Performance of Cathodes for Lithium Ion Batteries  

E-Print Network [OSTI]

battery used for hybrid electric vehicles (HEVs) or electric vehicles (EVs) due to its low cost, low toxicity, thermal andthermal stability. 109-112 Thus, it proves to be a promising candidate cathode in battery

Zhu, Jianxin

2014-01-01T23:59:59.000Z

438

Efficient Lithium-Ion Battery Pack Electro-Thermal Simulation  

Science Journals Connector (OSTI)

A methodology to derive a computational efficient electro-thermal battery pack model is showed. It is taken ... up of three orders of magnitude for the thermal part. The electrical battery model is implemented an...

L. Kostetzer

2014-01-01T23:59:59.000Z

439

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

440

Phase Separations in LiFe1xMnxPO4: A Random Stack Model for Efficient Cathode Materials  

Science Journals Connector (OSTI)

Lithium transition metal phosphates are of interest as storage cathodes for rechargeable Li batteries because of their high energy d., low raw materials cost, environmental friendliness and safety. ... The former material, proven to be very promising as active cathode material in Li metal and Li-ion batteries, was synthesized through a new procedure that combines a simple sol-gel pptn. ...

Weifeng Huang; Shi Tao; Jing Zhou; Cheng Si; Xing Chen; Wei Huang; Chuanhong Jin; Wangsheng Chu; Li Song; Ziyu Wu

2013-12-20T23:59:59.000Z

Note: This page contains sample records for the topic "li ion battery" 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

Simply AlF3-treated Li4Ti5O12 composite anode materials for stable...  

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

Li4Ti5O12 composite anode materials for stable and ultrahigh power lithium-ion batteries. Simply AlF3-treated Li4Ti5O12 composite anode materials for stable and ultrahigh...

442

Electrocatalytic Activity Studies of Select Metal Surfaces and Implications in Li-Air Batteries  

E-Print Network [OSTI]

Rechargeable lithium-air batteries have the potential to provide ?3 times higher specific energy of fully packaged batteries than conventional lithium rechargeable batteries. However, very little is known about the oxygen ...

Gasteiger, Hubert A.

443

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

444

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

445

Significant Cost Improvement of Li-Ion Cells Through Non-NMP...  

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

2 DOE Program Review: Significant Cost Improvement of Li- Ion Cells Through Non-NMP Electrode Coating, Direct Separator Coating, and Fast Formation Technologies PI: YK Son...

446

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

447

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

448

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

449

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

450

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

451

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

452

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- ... 4nm 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

453

Cobalt oxidegraphene 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

454

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

455

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

456

SnSb@carbon nanocable anchored on graphene sheets for sodium ion batteries  

Science Journals Connector (OSTI)

The development of materials with unique nanostructures is an effective strategy for the improvement of sodium storage in sodium ion batteries to achieve stable cycling performance and good ... , SnSbcore/carbon-...

Li Li; Kuok Hau Seng; Dan Li; Yongyao Xia; Hua Kun Liu; Zaiping Guo

2014-10-01T23:59:59.000Z

457

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

458

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

459

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

460

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

Note: This page contains sample records for the topic "li ion battery" 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

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

462

High Rate and High Capacity Li-Ion Electrodes for Vehicular Applications  

SciTech Connect (OSTI)

Significant advances in both energy density and rate capability for Li-ion batteries are necessary for implementation in electric vehicles. We have employed two different methods to improve the rate capability of high capacity electrodes. For example, we previously demonstrated that thin film high volume expansion MoO{sub 3} nanoparticle electrodes ({approx}2 {micro}m thick) have a stable capacity of {approx}630 mAh/g, at C/2 (charge/dicharge in 2 hours). By fabricating thicker conventional electrodes, an improved reversible capacity of {approx}1000 mAh/g is achieved, but the rate capability decreases. To achieve high-rate capability, we applied a thin Al{sub 2}O{sub 3} atomic layer deposition coating to enable the high volume expansion and prevent mechanical degradation. Also, we recently reported that a thin ALD Al{sub 2}O{sub 3} coating can enable natural graphite (NG) electrodes to exhibit remarkably durable cycling at 50 C. Additionally, Al{sub 2}O{sub 3} ALD films with a thickness of 2 to 4 {angstrom} have been shown to allow LiCoO{sub 2} to exhibit 89% capacity retention after 120 charge-discharge cycles performed up to 4.5 V vs. Li/Li{sup +}. Capacity fade at this high voltage is generally caused by oxidative decomposition of the electrolyte or cobalt dissolution. We have recently fabricated full cells of NG and LiCoO{sub 2} and coated both electrodes, one or the other electrode as well as neither electrode. In creating these full cells, we observed some surprising results that lead us to obtain a greater understanding of the ALD coatings. In a different approach we have employed carbon single-wall nanotubes (SWNTs) to synthesize binder-free, high-rate capability electrodes, with 95 wt.% active materials. In one case, Fe{sub 3}O{sub 4} nanorods are employed as the active storage anode material. Recently, we have also employed this method to demonstrate improved conductivity and highly improved rate capability for a LiNi{sub 0.4}Mn{sub 0.4}Co{sub 0.2}O{sub 2} cathode material. Raman spectroscopy was employed to understand how the SWNTs function as a highly flexible conductive additive.

Dillon, A. C.

2012-01-01T23:59:59.000Z

463

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

464

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

465

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

466

EV Everywhere Batteries Workshop- Next Generation Lithium Ion Batteries Breakout Session Report  

Broader source: Energy.gov [DOE]

Breakout session presentation for the EV Everywhere Grand Challenge: Battery Workshop on July 26, 2012 held at the Doubletree O'Hare, Chicago, IL.

467

An Integrated Power Pack of Dye-Sensitized Solar Cell and Li Battery Based on Double-Sided TiO2 Nanotube Arrays  

E-Print Network [OSTI]

is based on a silicon solar panel and a solid-state lithium battery as the two independent parts, whichAn Integrated Power Pack of Dye-Sensitized Solar Cell and Li Battery Based on Double-Sided TiO2 harvest and storage processes. This power pack incorporates a series-wound dye- sensitized solar cell

Wang, Zhong L.

468

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

469

EV Everywhere Batteries Workshop- Beyond Lithium Ion Breakout Session Report  

Broader source: Energy.gov [DOE]

Breakout session presentation for the EV Everywhere Grand Challenge: Battery Workshop on July 26, 2012 held at the Doubletree O'Hare, Chicago, IL.

470

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 1000mAhg?1, when cycled using vinylene carbonate as electrolyte additive. After 100 cycles at a current of 500mAg?1, the anode showed a discharge capacity retention of about 80%. The mechanism of reversible lithium uptake is described in terms of LiSi 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

471

Analysis of atomic and ion debris features of laser-produced Sn and Li plasmas  

E-Print Network [OSTI]

Analysis of atomic and ion debris features of laser-produced Sn and Li plasmas R. W. Coons,a S. S. Harilal, D. Campos, and A. Hassanein School of Nuclear Engineering and Center for Materials Under Extreme provide a CE nearly twice that of Li. However, the kinetic energies of Sn ions are considerably higher

Harilal, S. S.

472

Comparison of EUV spectral and ion emission features from laser-produced Sn and Li plasmas  

E-Print Network [OSTI]

Comparison of EUV spectral and ion emission features from laser- produced Sn and Li plasmas R. W. Coons, D. Campos, M. Crank, S. S. Harilal, and A. Hassanein School of Nuclear Engineering, and Center, and the kinetic energies and fluxes of ions at various laser intensities for both Sn and Li plasmas. The maximum

Harilal, S. S.

473

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 solgel 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

474

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 33.1C through the new thermal management system in comparison with 42.3C 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

475

Heat dissipation structure research for rectangle LiFePO4 power battery  

Science Journals Connector (OSTI)

Under hard acceleration or on a hill climb of (hybrid) electronic vehicles, the battery temperature would increase rapidly. High temperature decreases the battery cycle life, increases the thermal runaway, and ev...

Zhang Yunyun; Zhang Guoqing; Wu Weixiong; Liang Weixiong

2014-07-01T23:59:59.000Z

476

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

477

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

478

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, chargedischarge 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

479

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

480

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 chargedischarge 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 (1100mAhg?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

Note: This page contains sample records for the topic "li ion battery" 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

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

482

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 791.8C 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

483

Analysis of Impedance Response in Lithium-ion Battery Electrodes  

E-Print Network [OSTI]

A major amount of degradation in battery life is in the form of chemical degradation due to the formation of Solid Electrolyte Interface (SEI) which is a passive film resulting from chemical reaction. Mechanical degradation in the form of fracture...

Cho, Seongkoo

2013-12-04T23:59:59.000Z

484

Thermal Management of High-Performance Lithium-Ion Batteries  

Science Journals Connector (OSTI)

The battery power and lifetime depend to a large...cool...) is usually reduced using a high volumetric flow rate. Lathin technology from Behr ensures efficient temperature homogenisation (locally adapted thermal ...

Dr.-Ing. Matthias Stripf; Dr.-Ing. Manuel Wehowski

2012-01-01T23:59:59.000Z

485

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

486

Advanced cell technology for high performance Li-A1/FeS{sub 2} secondary batteries.  

SciTech Connect (OSTI)

In early 1993. Argonne National Laboratory (ANL) initiated a major R and D effort to develop bipolar Li-Al/LiCl-LiBr-KBr/FeS{sub 2} batteries for electric vehicles, targeting the USABC Long-Term Goals. Significant advancements were achieved in the areas of (i) chemical purity, (ii) electrode and electrolyte additives, and (iii) peripheral seals. It was determined that key chemical constituents contained undesirable impurities. ANL developed new chemical processes for preparing Li{sub 2}S, FeS, and CoS{sub 2} that were >98.5% pure. We evaluated a large variety of electrode and electrolyte additives for reducing cell area specific impedance (ASI). Candidate positive electrode additives offered increased electronic conductivity, enhanced reaction kinetics, and/or improved porous electrode morphology. CoS{sub 2}, CuFeS{sub 2}, MgO, and graphite (fibers) were identified as the most beneficial impedance-reducing positive electrode additives. Although electronically conductive carbon and graphite additives produced measurable ASI reductions in the negative electrode, they degraded its structural integrity and were deemed impractical. Lil and LiF were identified as beneficial electrolyte additives, that enhance positive electrode kinetics. ANL refined its baseline metal/ceramic peripheral seal and increased its strength by a factor of three (achieving a safety factor >10). In parallel, ANL developed a high-strength advanced metal/ceramic seal that offers appreciable cost reductions.

Henriksen, G. L.

1998-07-10T23:59:59.000Z

487

In-situ Investigation of Vanadium Ion Transport in Redox Flow Battery  

SciTech Connect (OSTI)

We will show a new method to differentiate the vanadium transport from concentration gradient and that from electric field. Flow batteries with vanadium and iron redox couples as the electro-active species were employed to investigate the transport behavior of vanadium ions in the presence of electric field. It was shown that electric field accelerated the positive-to-negative and reduced the negative-to-positive vanadium ions transport in charge process and affected the vanadium ions transport in an opposite way in discharge process. In addition, a method was designed to differentiate the concentration gradient-driven vanadium ions diffusion and electric field-driven vanadium ions migration. Simplified mathematical model was established to simulate the vanadium ions transport in real charge-discharge operation of flow battery. The concentration gradient diffusion coefficients and electric-migration coefficients of V2+, V3+, VO2+, and VO2+ across Nafion membrane were obtained by fitting the experimental data.

Luo, Qingtao; Li, Liyu; Nie, Zimin; Wang, Wei; Wei, Xiaoliang; Li, Bin; Chen, Baowei; Yang, Zhenguo

2012-06-27T23:59:59.000Z

488

Li(Mn1/3Ni1/3Fe1/3)O2Polyaniline hybrids as cathode active material with ultra-fast chargedischarge capability for lithium batteries  

Science Journals Connector (OSTI)

We first report the ultra-fast chargedischarge capability of organicinorganic (Li(Mn1/3Ni1/3Fe1/3)O2Polyaniline (PANI)) nanocomposites prepared by mixed hydroxide route and followed by polymerization of aniline monomers with different concentrations (0.1 and 0.2mol concentration of PANI). Li-insertion properties are evaluated in half-cell configuration, test cell (Li/Li(Mn1/3Ni1/3Fe1/3)O2PANI) comprising 0.2mol. PANI delivered the reversible capacity of ?127, ?114 and ?110mAhg?1 at ultra-high current rate of 5, 30 and 40C, respectively with exceptional cycleability between 2 and 4.5V vs. Li. Such an exceptional performance is mainly due to the conducting pathways promoted by PANI network and it is revealed by impedance measurements. This result certainly provides the possibility of using such layered type Fe based cathode materials in high power Li-ion batteries to drive zero emission vehicles such as hybrid electric vehicles or electric vehicles applications in near future.

K. Karthikeyan; S. Amaresh; V. Aravindan; W.S. Kim; K.W. Nam; X.Q. Yang; Y.S. Lee

2013-01-01T23:59:59.000Z

489

Ion Conducting Membranes for Fuel Cells and other Electrochemical Devices  

Science Journals Connector (OSTI)

ion conducting membrane; fuel cell; redox-flow battery; Li ion battery; proton; hydroxide; diffusion; conductivity; nanomorphology; hydration; visco-elastic constants; phosphate; polyelectrolyte; ionomer; block-copolymer; Nafion; Aquivion ... At this stage, however, they have an immediate potential for redox-flow battery applications, as will be discussed later. ... When the flow battery is charged or discharged, an equivalent amount of ionic charge has to cross the membrane, while the ions involved in the redox process have to be efficiently separated. ...

Klaus-Dieter Kreuer

2013-11-19T23:59:59.000Z

490

Fact Sheet: Sodium-Ion Batteries for Grid-Level Applications (October 2012)  

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

Aquion Energy, Inc. Aquion Energy, Inc. American Recovery and Reinvestment Act (ARRA) Sodium-Ion Batteries for Grid-Level Applications Demonstrating low-cost, grid-scale, ambient temperature sodium-ion batteries In June 2012, Aquion Energy, Inc. completed the testing and demonstration requirements for the U.S. Department of Energy's program with its low-cost, grid-scale, ambient temperature Aqueous Hybrid Ion (AHI) energy storage device. During the three-year project, Aquion manufactured hundreds of batteries and assemble them into high-voltage, grid-scale systems. This project helped them move their aqueous electrochemical energy storage device from bench-scale testing to pilot-scale manufacturing. The testing successfully demonstrated a grid-connected, high voltage (>1,000 V), 13.5 kWh system with a 4-hour discharge.

491

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.

492

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

493

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

494

Design and optimization of 6li neutron-capture pulse mode ion chamber  

E-Print Network [OSTI]

The purpose of this research is to design and optimize the performance of a unique, inexpensive 6Li neutron-capture pulse-mode ion chamber (LiPMIC) for neutron detection that overcomes the fill-gas contamination stemming from outgas of detector...

Chung, Kiwhan

2009-05-15T23:59:59.000Z

495

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

496

Significant Cost Improvement of Li-Ion Cells Through Non-NMP...  

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

3 DOE Merit Review ES133: Significant Cost Improvement of Li-ion Cells Through Non-NMP Electrode Coating, Direct Separator Coating, and Fast Formation Technologies PI: YK Son...

497

Energy transfer in clustered sites of Er3+ ions in LiNbO3 crystals  

Science Journals Connector (OSTI)

We investigated energy-transfer processes associated with clustered sites of Er3+ ions in LiNbO3 crystals leading to upconverted blue-green fluorescence and...

Ju, Jung Jin; Lee, Myung-Hyun; Cha, Myoungsik; Seo, Hyo Jin

2003-01-01T23:59:59.000Z

498

Significant Cost Improvement of Li-Ion Cells Through Non-NMP...  

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

P.I. Yongkyu Son Johnson Controls 2014 DOE Vehicle Technologies Program Review June 17, 2014 Project ID : ES133 Significant Cost Improvement of Li-ion Cells Through Non-NMP...

499

High Energy Density Li-ion Cells for EVs Based on Novel, High...  

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

Storage Systems Vehicle Technologies Annual Merit Review 6182014 1 High Energy Density Li-ion Cells for EV's Based on Novel, High Voltage Cathode Material Systems Keith D. Kepler...

500

Novel synthesis process and structure refinements of Li4Mn5O12 for rechargeable lithium batteries  

Science Journals Connector (OSTI)

Well-crystallized Li4Mn5O12 powder with grain size of 0.10.4 ?m was prepared by heating a eutectic mixture of lithium acetate (LiOAc), and manganese nitrate (Mn(NO3)2), in an oxygen atmosphere. The structure of Li4Mn5O12 crystallites was found to be a cubic spinel using Rietveld refinement of both neutron and X-ray powder diffraction data. We confirmed that lithium ions occupy both the tetrahedral 8a sites, and part of the octahedral 16d sites, but not the 16c sites in the space group Fd3m, while all the manganese ions occupy the 16d sites. The lattice parameter was found to be sensitive to the synthesis temperature as a result of the variation in manganese valence. Samples prepared at 500 C showed better electrode performance. A rechargeable capacity of about 135 mAh/g for the cell Li/Li4Mn5O12 was obtained in the 2.53.6 V range of cell voltages.

Toshimi Takada; Hiroshi Hayakawa; Etsuo Akiba; Fujio Izumi; Bryan C. Chakoumakos

1997-01-01T23:59:59.000Z