Title:
NEGATIVE ELECTRODE SHEET, SECONDARY BATTERY AND PREPARATION METHOD THEREFOR, BATTERY MODULE, BATTERY PACK, AND ELECTRICAL DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/044961
Kind Code:
A1
Abstract:
The present application relates to a negative electrode sheet, comprising a negative electrode current collector and a negative electrode film layer on at least one surface of the negative electrode current collector, wherein the negative electrode film layer comprises a negative electrode active material, a metal hydride, a conductive agent, and a binder, and the negative electrode active material comprises a silicon-based negative electrode active material. By using the negative electrode sheet provided in the present application, the capacity retention of a secondary battery can be remarkably improved, such that the cycle performance of the secondary battery is obviously improved.
Inventors:
GAO JINGYU (CN)
ZHANG HAIMING (CN)
YANG CHENGLONG (CN)
LIU XINGXING (CN)
ZHANG HAIMING (CN)
YANG CHENGLONG (CN)
LIU XINGXING (CN)
Application Number:
PCT/CN2022/115810
Publication Date:
March 07, 2024
Filing Date:
August 30, 2022
Export Citation:
Assignee:
CONTEMPORARY AMPEREX TECHNOLOGY CO LTD (CN)
International Classes:
H01M4/36; H01M4/58; H01M10/0525
Foreign References:
| CN107004843A | 2017-08-01 | |||
| JP2013131373A | 2013-07-04 | |||
| CN108520946A | 2018-09-11 | |||
| CN114784279A | 2022-07-22 | |||
| CN108574091A | 2018-09-25 |
Attorney, Agent or Firm:
PEKSUNG INTELLECTUAL PROPERTY LTD. (CN)
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