Title:
END COVER ASSEMBLY, BATTERY CELL, BATTERY, AND POWER CONSUMING DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/070970
Kind Code:
A1
Abstract:
Provided in the present application are an end cover assembly, a battery cell, a battery, and a power consuming device, which belong to the technical field of batteries. The end cover assembly comprises an end cover, an electrode post, a first separator, a second separator, and an insulating member. The end cover is provided with a mounting hole, the mounting hole penetrating the end cover in a thickness direction of the end cover. The electrode post comprises a main body section which is arranged in the mounting hole in a penetrating manner. In the thickness direction of the end cover, the first separator and the second separator are respectively arranged on two sides of the end cover, and are used for insulating and isolating the end cover and the electrode post in a cooperating manner. The insulating member covers the main body section in a circumferential direction of the main body section, and the insulating member is used for blocking the main body section from making contact with a conductive medium entering the mounting hole. In the thickness direction of the end cover, gaps are formed at positions of the first separator and the second separator opposite the mounting hole, and two ends of the insulating member extend beyond the gaps. With such a configuration, the end cover assembly can reduce the phenomenon of current conduction between the electrode post and the end cover, which is advantageous for reducing the risk of short circuiting of the battery cell and the potential safety hazard of electric corrosion of the shell.
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Inventors:
XU HU (CN)
Application Number:
PCT/CN2022/073581
Publication Date:
May 04, 2023
Filing Date:
January 24, 2022
Export Citation:
Assignee:
CONTEMPORARY AMPEREX TECHNOLOGY CO LTD (CN)
International Classes:
H01M50/188
Domestic Patent References:
| WO2021203642A1 | 2021-10-14 | |||
| WO2021208317A1 | 2021-10-21 |
Foreign References:
| CN211507691U | 2020-09-15 | |||
| CN209133596U | 2019-07-19 | |||
| CN106784450A | 2017-05-31 | |||
| JP2003086151A | 2003-03-20 | |||
| US20120148884A1 | 2012-06-14 |
Attorney, Agent or Firm:
BEIJING WEIFEI LIANCHUANG INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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