Title:
END CAP, BATTERY CELL, BATTERY, AND ELECTRICAL DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/082140
Kind Code:
A1
Abstract:
Provided in the embodiments of the present application are an end cap, a battery cell, a battery, and an electrical device, belonging to the technical field of batteries. The end cap is used for sealing an opening of a battery cell housing, and the end cap comprises an abutting portion and a first protruding portion. The abutting portion has an abutting surface, the abutting surface being used for abutting against the end of the housing provided with the opening. The first protruding portion is connected to the abutting portion and protrudes out from the abutting surface, and the first protruding portion is used for extending into the housing. The abutting surface is provided with a groove, the groove is disposed around the first protruding portion, and the outer peripheral surface of the first protruding portion is connected to the abutting surface via a groove wall surface of the groove. The invention reduces the risk of interference between the end cap and the housing due to a rounded corner being formed at the connection between the abutting surface and the outer peripheral surface of the first protruding portion, thereby allowing the abutting surface to abut against the end of the housing provided with the opening, and improving the robustness of the connection between the end cap and the housing.
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Inventors:
CHEN SHENGWANG (CN)
GUO ZHIJUN (CN)
WANG PENG (CN)
GUO ZHIJUN (CN)
WANG PENG (CN)
Application Number:
PCT/CN2022/125960
Publication Date:
April 25, 2024
Filing Date:
October 18, 2022
Export Citation:
Assignee:
CONTEMPORARY AMPEREX TECHNOLOGY CO LTD (CN)
International Classes:
H01M50/152; H01M50/166
Foreign References:
| CN216213942U | 2022-04-05 | |||
| CN216085065U | 2022-03-18 | |||
| CN217158556U | 2022-08-09 | |||
| JP2010027436A | 2010-02-04 |
Attorney, Agent or Firm:
BEIJING WEIFEI LIANCHUANG INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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