Title:
ELECTRODE ASSEMBLY, BATTERY AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2023/142994
Kind Code:
A1
Abstract:
The present application provides an electrode assembly, a battery and a manufacturing method therefor, relates to the technical field of batteries, and is used for solving the problems of burrs on the edge of an existing electrode sheet and the risk of electrode sheet breakage during winding. The electrode assembly comprises a separator film, and a first electrode sheet and a second electrode sheet arranged opposite to each other on two sides of the separator film. The first electrode sheet comprises a first tab and a first active material layer located on a side surface thereof. The first active material layer is provided with a first tab mounting slot, and a reserved area is provided between one side of the first tab mounting slot in the first direction and the edge of the first active material layer. Part of the first tab is connected in the first tab mounting slot, and the first tab covers part of the reserved area to form a combination portion. The second electrode sheet comprises a second active material layer located on a side surface thereof, and the second active material layer is provided with a groove opposite to the combination portion. The electrode assembly provided by the present application is used for manufacturing a battery, and can reduce the overall thickness of the battery.
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Inventors:
LI TAO (CN)
Application Number:
PCT/CN2023/071236
Publication Date:
August 03, 2023
Filing Date:
January 09, 2023
Export Citation:
Assignee:
ZHUHAI COSMX BATTERY CO LTD (CN)
International Classes:
H01M50/531
Domestic Patent References:
| WO2021227896A1 | 2021-11-18 |
Foreign References:
| CN114497914A | 2022-05-13 | |||
| CN216750226U | 2022-06-14 | |||
| CN113644230A | 2021-11-12 | |||
| CN113948826A | 2022-01-18 | |||
| CN211507765U | 2020-09-15 |
Attorney, Agent or Firm:
LEADER PATENT & TRADEMARK FIRM (CN)
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