Title:
POSITIVE ELECTRODE SHEET, ELECTRODE ASSEMBLY, BATTERY CELL, BATTERY AND ELECTRIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/103350
Kind Code:
A1
Abstract:
The present application discloses a positive electrode sheet, an electrode assembly, a battery cell, a battery and an electric device. The positive electrode sheet comprises a positive electrode current collector, a positive electrode active material layer located on the surface of the positive electrode current collector, and a functional layer connected to the positive electrode active material layer; the positive electrode active material layer comprises a Li-containing active material and a Na-containing active material, and the mass ratio of the Na-containing active material to the Li-containing active material is P1, wherein 0.02≤P1≤50. According to the positive electrode sheet, the Na-containing active material and the Li-containing active material are used in conjunction for the positive electrode active material layer, thereby achieving both high energy density and a low-temperature capacity retention rate.
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Inventors:
LI QUANGUO (CN)
LIU QIAN (CN)
XIAO DEJUN (CN)
CHEN JIAHUA (CN)
SUN JINGXUAN (CN)
YE YONGHUANG (CN)
LIU QIAN (CN)
XIAO DEJUN (CN)
CHEN JIAHUA (CN)
SUN JINGXUAN (CN)
YE YONGHUANG (CN)
Application Number:
PCT/CN2022/132649
Publication Date:
May 23, 2024
Filing Date:
November 17, 2022
Export Citation:
Assignee:
CONTEMPORARY AMPEREX TECHNOLOGY CO LTD (CN)
International Classes:
H01M10/054; H01M4/48; H01M4/58; H01M10/0525
Foreign References:
| CN115172702A | 2022-10-11 | |||
| CN114142003A | 2022-03-04 | |||
| CN114944482A | 2022-08-26 | |||
| CN217507389U | 2022-09-27 | |||
| US20210242451A1 | 2021-08-05 |
Attorney, Agent or Firm:
BEIJING WEIFEI LIANCHUANG INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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