Title:
NONAQUEOUS ELECTROLYTE AND LITHIUM ION BATTERY CONTAINING SAME
Document Type and Number:
WIPO Patent Application WO/2023/116005
Kind Code:
A1
Abstract:
The present invention relates to a nonaqueous electrolyte and a lithium ion battery containing same. In order to solve the problem that existing high-voltage lithium batteries cannot have comprehensive performance such as high energy density, high-temperature cycle and storage performance, normal-temperature cycle performance, and rate charging/discharging performance at the same time, the present invention provides a nonaqueous electrolyte, containing substances as shown in the formulas, wherein G1 and G2 are independently selected as a bond, oxygen, sulfur, nitrogen, silicon or phosphorus, at least one of G1 and G2 is oxygen, R1 is an alkylene group, a halogenated alkylene group, or a silyl alkylene group, R2 is an alkyl group, a fluoroalkyl group, an alkenyl group, a fluoroalkenyl group, an alkynyl group, a fluoroalkynyl group or a cyano group, R3 is hydrogen, a halogen, an alkyl group, a haloalkyl group, a cyano group, a siloxane group, an alkoxy group or a haloalkoxy group, X, Y, and Z are independently selected as carbon, oxygen, sulfur, nitrogen or phosphorus, at least one of X, Y, and Z is oxygen, sulfur, nitrogen or phosphorus, and n is an integer between 2 and 6. The cycle performance, the high-temperature performance, and the rate performance of the lithium battery can be improved at the same time.
Inventors:
QIN HU (CN)
SHI ERBO (CN)
CHEN XIAOQIN (CN)
GAN CHAOLUN (CN)
SHI ERBO (CN)
CHEN XIAOQIN (CN)
GAN CHAOLUN (CN)
Application Number:
PCT/CN2022/113913
Publication Date:
June 29, 2023
Filing Date:
August 22, 2022
Export Citation:
Assignee:
ZHANGJIAGANG GUOTAI HUARONG NEW CHEMICAL MATERIALS CO LTD (CN)
International Classes:
H01M10/0525; H01M10/0567; H01M10/058
Foreign References:
| CN111755746A | 2020-10-09 | |||
| CN110391460A | 2019-10-29 | |||
| CN105489934A | 2016-04-13 | |||
| JP2000268861A | 2000-09-29 | |||
| US20200044287A1 | 2020-02-06 | |||
| US20150364794A1 | 2015-12-17 | |||
| CN201610218844A | 2016-04-08 | |||
| CN201610518477A | 2016-07-01 | |||
| CN201210098386A | 2012-04-06 | |||
| CN200580017212A | 2005-05-27 |
Other References:
CAS, no. 62037-81-4
Attorney, Agent or Firm:
SUZHOU CREATOR PATENT & TRADEMARK AGENCY, LTD. (CN)
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