Organohalosilane and use thereof in electrolytes of non-aqueous lithium ion batteries
AssigneeGuangzhou Institute of Energy Conversion, Chinese Academy of Sciences
InventorsLingzhi Zhang, Hao Luo, Yongjin Mai
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Abstract
A method for preparation of an organohalosilane represented by formula I is disclosed. The method comprises: contacting an alcohol with metal sodium to yield a sodium alcoholate; contacting the sodium alcoholate with a halogen silane compound for an etherification reaction; and adding dropwise a fluorinating agent for a fluorination reaction. The organohalosilane is used for preparation of an electrolyte solution of a non-aqueous lithium ion battery.
Claims2
A method for preparation of an electrolyte solution of a non-aqueous lithium ion battery, the method comprising adding to the electrolyte solution a compound of formula I:
- wherein:
- R1, R2, and R3 independently, at each occurrence, represent:
- (a) —(CH2)xCH3 wherein x is an integer from 0 to 5, or
- (b) F;
- at least one of R1, R2, and R3 is F;
- R4 is a tertiary amine represented by —NR5R6, wherein R5 and R6 independently, at each occurrence, represent C1-C5 alkyl;
- m is an integer from 1 to 20;
- and
- n is an integer from 0 to 5.
Dependencies are inferred from the claim text.