Title:
SECONDARY BATTERY AND ELECTRIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/087382
Kind Code:
A1
Abstract:
Disclosed are a secondary battery and an electric device. The secondary battery comprises a positive electrode plate. The positive electrode plate comprises a positive electrode current collector and a positive electrode active material layer, which is arranged on the positive electrode current collector, and the positive electrode active material layer comprises a positive electrode active material. The secondary battery satisfies: 0 < (Q1 - Q3)/Q3 ≤ 1.0. By adjusting the relationship between the maximum reversible gram capacity of the positive electrode active material and the working gram capacity of the positive electrode active material in the present application, the cycling and service life of the secondary battery are improved.
Inventors:
ZHANG YAO (CN)
WANG MINGWANG (CN)
ZHANG XUHUI (CN)
WANG BAOYU (CN)
CHEN HUI (CN)
WANG MINGWANG (CN)
ZHANG XUHUI (CN)
WANG BAOYU (CN)
CHEN HUI (CN)
Application Number:
PCT/CN2022/143653
Publication Date:
May 02, 2024
Filing Date:
December 29, 2022
Export Citation:
Assignee:
SUNWODA MOBILITY ENERGY TECH CO LTD (CN)
International Classes:
H01M4/36
Foreign References:
| CN115458797A | 2022-12-09 | |||
| CN110212193A | 2019-09-06 | |||
| CN101609908A | 2009-12-23 | |||
| CN113097429A | 2021-07-09 |
Attorney, Agent or Firm:
PURPLEVINE INTELLECTUAL PROPERTY (SHENZHEN) CO., LTD. (CN)
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