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Title: Silicon Anodes with Improved Calendar Life Enabled By Multivalent Additives

Journal Article · · Advanced Energy Materials
ORCiD logo [1];  [1];  [2];  [3];  [2];  [1];  [1];  [1]
  1. Argonne National Lab. (ANL), Lemont, IL (United States)
  2. Univ. of California, Berkeley, CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  3. Argonne National Lab. (ANL), Lemont, IL (United States). Center for Nanoscale Materials

Silicon is widely recognized as the most promising upgrade for graphite anodes due to its much higher capacity, natural abundance, and ability to be directly applied in the slurry-based, roll-to-roll production lines. However, in addition to the fast capacity decay, silicon anodes also suffer from inferior calendar life in practical applications due to the unstable solid-electrode interface (SEI). Until now, strategies to effectively improve the calendar life by tailored SEIs remain largely unclear, especially in high-Si content, zero-graphite anodes. Here, silicon anodes with superior calendar life are developed by adding small concentrations of multivalent salts into the baseline electrolyte. The Ca additive reacts with the F ions in the electrolyte, forming a layer of nanocrystalline CaF2 that is closely coated around the silicon particles. The CaF2-enabled new SEI is strong and dense, which effectively protects the silicon core from side reactions, leading to lower capacity decay after calendar aging at high voltage. More importantly, the Ca additive is effective universally for all available commercial silicon or SiO sources. This study provides a feasible and low-cost solution for developing silicon anodes with long calendar life, paving the way towards commercially viable silicon anodes.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE; USDOE Office of Energy Efficiency and Renewable Energy (EERE); USDOE Office of Energy Efficiency and Renewable Energy (EERE), Transportation Office. Vehicle Technologies Office; USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC02-05CH11231; AC02-06CH11357
OSTI ID:
1839391
Journal Information:
Advanced Energy Materials, Journal Name: Advanced Energy Materials Journal Issue: 37 Vol. 11; ISSN 1614-6832
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English

References (60)

High-Capacity Cathode Material with High Voltage for Li-Ion Batteries journal January 2018
Facile Synthesis of 3D Anode Assembly with Si Nanoparticles Sealed in Highly Pure Few Layer Graphene Deposited on Porous Current Collector for Long Life Li-Ion Battery journal March 2017
Substitution of Lithium for Magnesium, Zinc, and Aluminum in Li 15 Si 4 : Crystal Structures, Thermodynamic Properties, as well as 6 Li and 7 Li NMR Spectroscopy of Li 15 Si 4 and Li 15− x M x Si 4 (M=Mg, Zn, and Al) journal March 2016
Identifying the Mechanism of Continued Growth of the Solid–Electrolyte Interphase journal March 2018
The stability of the BeF2, MgF2 and CaF2 dimers journal December 1994
Stress effect on cycle properties of the silicon thin-film anode journal July 2001
Stabilization of a High-Capacity and High-Power Nickel-Based Cathode for Li-Ion Batteries journal April 2018
Python Materials Genomics (pymatgen): A robust, open-source python library for materials analysis journal February 2013
Geometric and electronic studies of Li15Si4 for silicon anode journal December 2008
Calendar-life versus cycle-life aging of lithium-ion cells with silicon-graphite composite electrodes journal August 2018
Nano- and bulk-silicon-based insertion anodes for lithium-ion secondary cells journal January 2007
Surface chemistry and morphology of the solid electrolyte interphase on silicon nanowire lithium-ion battery anodes journal April 2009
Statistical analysis for understanding and predicting battery degradations in real-life electric vehicle use journal January 2014
In situ Scanning electron microscope study and microstructural evolution of nano silicon anode for high energy Li-ion batteries journal February 2014
Cycling capacity recovery effect: A coulombic efficiency and post-mortem study journal October 2017
Pure silicon thin-film anodes for lithium-ion batteries: A review journal February 2019
Reversible self-discharge and calendar aging of 18650 nickel-rich, silicon-graphite lithium-ion cells journal June 2019
Recent advances and historical developments of high voltage lithium cobalt oxide materials for rechargeable Li-ion batteries journal June 2020
Size effect on the growth and pulverization behavior of Si nanodomains in SiO anode journal December 2020
Designing nanostructured Si anodes for high energy lithium ion batteries journal October 2012
A review of Battery Electric Vehicle technology and readiness levels journal October 2017
Electrodeposited copper foams as substrates for thin film silicon electrodes journal May 2016
Key Issues Hindering a Practical Lithium-Metal Anode journal May 2019
Investigating Ternary Li–Mg–Si Zintl Phase Formation and Evolution for Si Anodes in Li-Ion Batteries with Mg(TFSI) 2 Electrolyte Additive journal June 2021
Voltage Dependent Solid Electrolyte Interphase Formation in Silicon Electrodes: Monitoring the Formation of Organic Decomposition Products journal December 2015
SiO 2 Is Wasted Space in Single-Nanometer-Scale Silicon Nanoparticle-Based Composite Anodes for Li-Ion Electrochemical Energy Storage journal November 2020
Nonpassivated Silicon Anode Surface journal May 2020
Identification of the Solid Electrolyte Interface on the Si/C Composite Anode with FEC as the Additive journal February 2019
Using Mixed Salt Electrolytes to Stabilize Silicon Anodes for Lithium-Ion Batteries via in Situ Formation of Li–M–Si Ternaries (M = Mg, Zn, Al, Ca) journal July 2019
New Insights into Mossy Li Induced Anode Degradation and Its Formation Mechanism in Li–S Batteries journal November 2017
Stabilizing the Phase Li 15 Si 4 through Lithium–Aluminum Substitution in Li 15– x Al x Si 4 (0.4 < x < 0.8)—Single Crystal X-ray Structure Determination of Li 15 Si 4 and Li 14.37 Al 0.63 Si 4 journal October 2013
Pair Distribution Function Analysis and Solid State NMR Studies of Silicon Electrodes for Lithium Ion Batteries: Understanding the (De)lithiation Mechanisms journal January 2011
Real-Time NMR Investigations of Structural Changes in Silicon Electrodes for Lithium-Ion Batteries journal July 2009
Solid Electrolyte Interphase Growth and Capacity Loss in Silicon Electrodes journal June 2016
Understanding Fluoroethylene Carbonate and Vinylene Carbonate Based Electrolytes for Si Anodes in Lithium Ion Batteries with NMR Spectroscopy journal July 2018
Silicon Solid Electrolyte Interphase (SEI) of Lithium Ion Battery Characterized by Microscopy and Spectroscopy journal June 2013
Interconnected Silicon Hollow Nanospheres for Lithium-Ion Battery Anodes with Long Cycle Life journal July 2011
Silicon Nanowire Degradation and Stabilization during Lithium Cycling by SEI Layer Formation journal May 2014
Silicon Nanotube Battery Anodes journal November 2009
In Situ TEM Study of Lithiation Behavior of Silicon Nanoparticles Attached to and Embedded in a Carbon Matrix journal August 2012
Promise and reality of post-lithium-ion batteries with high energy densities journal March 2016
High-performance lithium battery anodes using silicon nanowires journal December 2007
Review on modeling of the anode solid electrolyte interphase (SEI) for lithium-ion batteries journal March 2018
Pathways for practical high-energy long-cycling lithium metal batteries journal February 2019
High-nickel layered oxide cathodes for lithium-based automotive batteries journal January 2020
Valence electron energy-loss spectroscopy of silicon negative electrodes for lithium batteries journal January 2010
Nanostructured silicon for high capacity lithium battery anodes journal January 2011
Silicon as a potential anode material for Li-ion batteries: where size, geometry and structure matter journal January 2016
Ultra-long life Si@rGO/g-C 3 N 4 with a multiply synergetic effect as an anode material for lithium-ion batteries journal January 2018
Designing superior solid electrolyte interfaces on silicon anodes for high-performance lithium-ion batteries journal January 2019
Electrolytes for advanced lithium ion batteries using silicon-based anodes journal January 2019
Critical silicon-anode size for averting lithiation-induced mechanical failure of lithium-ion batteries journal January 2013
Commentary: The Materials Project: A materials genome approach to accelerating materials innovation journal July 2013
Formation enthalpies by mixing GGA and GGA + U calculations journal July 2011
High Capacity, Reversible Silicon Thin-Film Anodes for Lithium-Ion Batteries journal January 2003
Understanding Anomalous Behavior in Coulombic Efficiency Measurements on Li-Ion Batteries journal December 2014
Calendar and Cycle Life of Lithium-Ion Batteries Containing Silicon Monoxide Anode journal January 2018
Consumption of Fluoroethylene Carbonate (FEC) on Si-C Composite Electrodes for Li-Ion Batteries journal January 2016
Decomposition of LiPF 6 in High Energy Lithium-Ion Batteries Studied with Online Electrochemical Mass Spectrometry journal January 2016
Review—SEI: Past, Present and Future journal January 2017