Title:
SECONDARY BATTERY, BATTERY MODULE COMPRISING SECONDARY BATTERY, BATTERY PACK, AND ELECTRIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/236152
Kind Code:
A1
Abstract:
The present application discloses a secondary battery, a battery module comprising the secondary battery, a battery pack, and an electric device. The secondary battery comprises: a positive electrode sheet which comprises a positive electrode film layer; a separator; and a negative electrode sheet which comprises a first negative electrode film layer arranged opposite to the positive electrode film layer across the separator, and a second negative electrode film layer comprising a negative electrode film layer not arranged opposite to the positive electrode film layer, the second negative electrode film layer comprising a central area and a peripheral area surrounding the central area, and a lithium source for supplementing lithium to the first negative electrode film layer being stored in at least part of the peripheral area of the second negative electrode film layer.
Inventors:
DONG XIAOBIN (CN)
WANG JIAZHENG (CN)
YAN QINGWEI (CN)
WANG JIAZHENG (CN)
YAN QINGWEI (CN)
Application Number:
PCT/CN2022/097944
Publication Date:
December 14, 2023
Filing Date:
June 09, 2022
Export Citation:
Assignee:
CONTEMPORARY AMPEREX TECHNOLOGY CO LTD (CN)
International Classes:
H01M4/62; H01M4/13; H01M10/0525
Foreign References:
| CN112952036A | 2021-06-11 | |||
| CN215988843U | 2022-03-08 | |||
| CN102709592A | 2012-10-03 | |||
| CN109616612A | 2019-04-12 | |||
| JP2010160984A | 2010-07-22 |
Attorney, Agent or Firm:
BEIJING EAST IP LTD. (CN)
Download PDF: