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1. (WO2018196142) LITHIUM ION BATTERY NON-AQUEOUS ELECTROLYTE AND LITHIUM ION BATTERY

Pub. No.:    WO/2018/196142    International Application No.:    PCT/CN2017/089535
Publication Date: Fri Nov 02 00:59:59 CET 2018 International Filing Date: Fri Jun 23 01:59:59 CEST 2017
IPC: H01M 10/0566
H01M 10/0525
Applicants: SHENZHEN CAPCHEM TECHNOLOGY CO., LTD.
深圳新宙邦科技股份有限公司
Inventors: SHI, Qiao
石桥
LIN, Muchong
林木崇
HU, Shiguang
胡时光
LIU, Ruixing
刘瑞星
Title: LITHIUM ION BATTERY NON-AQUEOUS ELECTROLYTE AND LITHIUM ION BATTERY
Abstract:
Provided is a lithium ion battery non-aqueous electrolyte, which solves the problem that existing maleic anhydride copolymer-containing lithium ion battery non-aqueous electrolytes have poor cycling performance and high temperature storage performance. The lithium ion battery non-aqueous electrolyte comprises compound A, which has the structure shown in formula I, and compound B, which has the structure shown in formula II. In the structure shown in formula I, R7 and R8 are each independently selected from one of a hydrogen atom, a halogen atom, -O-R9 or an aryl, wherein n is a positive integer, and R9 is a C1-C4 alkyl. In the structure shown in formula II, R1, R2, R3, R4, R5 and R6 are each independently selected from one of a hydrogen atom, a halogen atom or a C1-C5 group. By means of the effects of compound A and compound B, the lithium ion battery non-aqueous electrolyte improves the cycling stability and the high temperature storage performance of a battery.