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Title: Electrolyte additives for lithium-ion batteries under high-voltage operation

Abstract

A non-aqueous electrolyte for a lithium-ion battery comprises a lithium salt and an additive in an organic solvent. The additive comprises a di-substituted malonate silyl ester compound, in which the hydrogens of the malonate methylene group are replaced by substituents R1 (e.g., alkyl) and X (e.g., halogen). Each of the carboxylic acid groups of the malonate are esterified by a monovalent silyl group such as —Si(R4)3; or the two carboxylic acid groups are esterified by a single divalent silylene group such as —Si(R5)2— to form a ring therewith. Each R4 and R5 independently is alkyl, phenyl, or alkoxy; and each substituted-alkyl comprises an alkyl moiety substituted with one or more group selected from alkenyl, alkynyl, hydroxy, halogen, alkoxy, carboxylic acid, carboxylic ester, carboxylic amide, phenyl, sulfonic acid, and phosphonic acid.

Inventors:
; ; ;
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1600235
Patent Number(s):
10,461,364
Application Number:
15/492,260
Assignee:
UChicago Argonne, LLC (Chicago, IL)
DOE Contract Number:  
AC02-06CH11357
Resource Type:
Patent
Resource Relation:
Patent File Date: 04/20/2017
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Liao, Chen, Peebles, Cameron, Abraham, Daniel, and Zhang, Zhengcheng. Electrolyte additives for lithium-ion batteries under high-voltage operation. United States: N. p., 2019. Web.
Liao, Chen, Peebles, Cameron, Abraham, Daniel, & Zhang, Zhengcheng. Electrolyte additives for lithium-ion batteries under high-voltage operation. United States.
Liao, Chen, Peebles, Cameron, Abraham, Daniel, and Zhang, Zhengcheng. Tue . "Electrolyte additives for lithium-ion batteries under high-voltage operation". United States. https://www.osti.gov/servlets/purl/1600235.
@article{osti_1600235,
title = {Electrolyte additives for lithium-ion batteries under high-voltage operation},
author = {Liao, Chen and Peebles, Cameron and Abraham, Daniel and Zhang, Zhengcheng},
abstractNote = {A non-aqueous electrolyte for a lithium-ion battery comprises a lithium salt and an additive in an organic solvent. The additive comprises a di-substituted malonate silyl ester compound, in which the hydrogens of the malonate methylene group are replaced by substituents R1 (e.g., alkyl) and X (e.g., halogen). Each of the carboxylic acid groups of the malonate are esterified by a monovalent silyl group such as —Si(R4)3; or the two carboxylic acid groups are esterified by a single divalent silylene group such as —Si(R5)2— to form a ring therewith. Each R4 and R5 independently is alkyl, phenyl, or alkoxy; and each substituted-alkyl comprises an alkyl moiety substituted with one or more group selected from alkenyl, alkynyl, hydroxy, halogen, alkoxy, carboxylic acid, carboxylic ester, carboxylic amide, phenyl, sulfonic acid, and phosphonic acid.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {10}
}

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Works referenced in this record:

Electrolyte compositions for lithium ion batteries
patent, March 2016