Title:
SECONDARY BATTERY AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2024/077765
Kind Code:
A1
Abstract:
The present application belongs to the technical field of batteries, and particularly relates to a secondary battery. The secondary battery provided by the present application comprises a positive electrode sheet, a negative electrode sheet and an electrolyte, the electrolyte comprising an organic solvent, and the organic solvent comprising a cyclic ester solvent and a chain ester solvent. The parameters of the secondary battery satisfy relational expression (1). By means of adjustment of the electrolyte and the negative electrode sheet of the secondary battery and the cooperation of the electrolyte and the negative electrode sheet, the secondary battery has good low-temperature dynamic performance and thus has a high capacity retention rate and relatively low impedance at a low temperature.
Inventors:
CHENG SHOUQIANG (CN)
WANG CHENGXIANG (CN)
HE XUAN (CN)
ZHANG JIANWEI (CN)
CHU CHUNBO (CN)
WANG CHENGXIANG (CN)
HE XUAN (CN)
ZHANG JIANWEI (CN)
CHU CHUNBO (CN)
Application Number:
PCT/CN2022/139579
Publication Date:
April 18, 2024
Filing Date:
December 16, 2022
Export Citation:
Assignee:
SUNWODA MOBILITY ENERGY TECH CO LTD (CN)
International Classes:
H01M10/0569; H01M10/052; H01M10/0567
Foreign References:
| CN109119686A | 2019-01-01 | |||
| CN110010871A | 2019-07-12 | |||
| CN114204106A | 2022-03-18 | |||
| CN105552430A | 2016-05-04 | |||
| CN108134134A | 2018-06-08 | |||
| CN109119685A | 2019-01-01 |
Attorney, Agent or Firm:
SUNSHINE INTELLECTUAL PROPERTY INTERNATIONAL CO., LTD. (CN)
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