Title:
HOUSING MEMBER, BATTERY CELL, BATTERY, AND ELECTRICAL DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/231328
Kind Code:
A1
Abstract:
Embodiments of the present application provide a housing member, a battery cell, a battery and an electrical appliance, in the technical field of batteries. The housing member comprises a non-weak area and a weak area which are integrally formed; the housing member is provided with a groove part, the non-weak area being formed around the groove part, the weak area being formed at the bottom of the groove part, and the weak area being configured to be damaged when the battery cell releases internal pressure. The hardness of the weak area is H1, the hardness of the non-weak area is H2, and H1 is greater than H2. The hardness of the weak area is greater than that of the non-weak area, and increasing the hardness of the weak area, thereby increasing the strength of the weak area, decreases the risk of the weak area being damaged under normal use conditions of the battery cell, which may effectively prolong the service life of a battery cell.
Inventors:
CHEN XIAOBO (CN)
GU MINGGUANG (CN)
GU MINGGUANG (CN)
Application Number:
PCT/CN2022/134421
Publication Date:
December 07, 2023
Filing Date:
November 25, 2022
Export Citation:
Assignee:
CONTEMPORARY AMPEREX TECHNOLOGY CO LTD (CN)
International Classes:
H01M50/342; H01M50/102; H01M50/116
Foreign References:
| CN215989102U | 2022-03-08 | |||
| CN113728492A | 2021-11-30 | |||
| US20080107963A1 | 2008-05-08 | |||
| CN113146148A | 2021-07-23 |
Attorney, Agent or Firm:
BEIJING WEIFEI LIANCHUANG INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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