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Polyfluorinated carbonate electrolyte for high-voltage lithium batteries

Patent ·
OSTI ID:1840478
; ; ;

A non-aqueous solvent composition for a lithium battery comprises a fluorinated solvent mixture that consists essentially of a 1,2-difluoroethylene carbonate and a fluoro-substituted dialkyl carbonate in a respective weight ratio of about 1:3 to about 1:1, and optionally up to about 30 wt % of an additional organic solvent. An electrolyte for a lithium ion battery comprises a lithium salt dissolved in a non-aqueous solvent composition comprising the fluorinated solvent mixture.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC02-06CH11357
Assignee:
UChicago Argonne, LLC (Chicago, IL)
Patent Number(s):
11,127,979
Application Number:
15/923,687
OSTI ID:
1840478
Country of Publication:
United States
Language:
English

References (5)

Development of direct fluorination technology for application to materials for lithium battery journal April 2003
Some Fluorinated Carbonates as Electrolyte Additives for Li(Ni 0.4 Mn 0.4 Co 0.2 )O 2 /Graphite Pouch Cells journal January 2016
Enabling High-Energy, High-Voltage Lithium-Ion Cells: Standardization of Coin-Cell Assembly, Electrochemical Testing, and Evaluation of Full Cells journal January 2016
Advances in Stabilizing ‘Layered-Layered’ xLi2MnO3·(1-x)LiMO2(M=Mn, Ni, Co) Electrodes with a Spinel Component journal January 2014
Nonaqueous Electrolytes and Advances in Additives book January 2014

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