Title:
NON-AQUEOUS ELECTROLYTE AND SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2024/078116
Kind Code:
A1
Abstract:
Provided are a non-aqueous electrolyte and a battery, for use in overcoming the problem in the prior art of poor high-temperature storage performance of a secondary battery. The non-aqueous electrolyte comprises an electrolyte salt, a non-aqueous organic solvent and an additive. The additive comprises a compound as represented by a structural formula 1, wherein R1 and R2 are each independently selected from a hydrogen atom, a halogen atom, a C1-C5 hydrocarbyl group or a C1-C5 halogenated hydrocarbyl group. The non-aqueous electrolyte can form a stable SEI film on the surface of a negative electrode, thereby reducing the decomposition of the solvent on the negative electrode, and improving the high-temperature storage performance and the high-temperature cycle performance of the battery.
Inventors:
CAO CHAOWEI (CN)
DING LEI (CN)
ZHOU ZHONGCANG (CN)
HU SHIGUANG (CN)
DING LEI (CN)
ZHOU ZHONGCANG (CN)
HU SHIGUANG (CN)
Application Number:
PCT/CN2023/113029
Publication Date:
April 18, 2024
Filing Date:
August 15, 2023
Export Citation:
Assignee:
SHENZHEN CAPCHEM TECHNOLOGY CO LTD (CN)
International Classes:
H01M10/0567; H01M10/05; H01M10/0525; H01M10/056; H01M10/0566
Foreign References:
| CN115020814A | 2022-09-06 | |||
| CN114464887A | 2022-05-10 | |||
| CN114639872A | 2022-06-17 | |||
| CN114725512A | 2022-07-08 | |||
| CN114883648A | 2022-08-09 | |||
| CN112635834A | 2021-04-09 | |||
| JP2022076996A | 2022-05-20 | |||
| KR20150109732A | 2015-10-02 |
Attorney, Agent or Firm:
SHENZHEN ZHONGDING INTELLECTUAL PROPERTY AGENCY (CN)
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