Title:
END COVER ASSEMBLY, BATTERY ASSEMBLY, BATTERY, AND ELECTRIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/045065
Kind Code:
A1
Abstract:
The present application relates to the technical field of batteries, and provides an end cover assembly, a battery assembly, a battery, and an electric device. The end cover assembly comprises a composite end cover, an electrode terminal, and a sealing member. The composite end cover is provided with mounting holes passing through the composite end cover, the composite end cover comprises a first end cover and a second end cover that are stacked in the axial direction of the mounting holes, and the mounting holes pass through the first end cover and the second end cover. The electrode terminal passes through the mounting holes. At least part of the sealing member is located in the mounting holes, the hole walls of the mounting holes and the electrode terminal clamp the at least part of the sealing member, and the sealing member forms radial sealing between the mounting holes and the electrode terminal. The sealing performance and the sealing reliability of a sealing manner of the present solution are better, and the sealing manner is simpler and more convenient. Moreover, the radial sealing of the sealing member can reduce the size of the end cover assembly in the axial direction of the mounting holes compared with the sealing manner of the sealing member in the axial direction of the mounting holes, thereby facilitating improving the energy density of a battery assembly and a battery which comprise the end cover assembly.
Inventors:
CHEN XINXIANG (CN)
ZHENG YULIAN (CN)
HUANG SHOUJUN (CN)
LIN DENGHUA (CN)
CHEN LONG (CN)
WANG PENG (CN)
ZHENG YULIAN (CN)
HUANG SHOUJUN (CN)
LIN DENGHUA (CN)
CHEN LONG (CN)
WANG PENG (CN)
Application Number:
PCT/CN2022/116280
Publication Date:
March 07, 2024
Filing Date:
August 31, 2022
Export Citation:
Assignee:
CONTEMPORARY AMPEREX TECHNOLOGY CO LTD (CN)
International Classes:
H01M50/15; H01M50/147; H01M50/176
Foreign References:
| CN218351639U | 2023-01-20 | |||
| CN218414641U | 2023-01-31 | |||
| CN111430592A | 2020-07-17 | |||
| CN212303783U | 2021-01-05 | |||
| CN205429020U | 2016-08-03 | |||
| US20190319227A1 | 2019-10-17 |
Attorney, Agent or Firm:
BEIJING WEIFEI LIANCHUANG INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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