Title:
SECONDARY BATTERY TOP COVER AND SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2023/208215
Kind Code:
A1
Abstract:
The present application relates to a secondary battery top cover and a secondary battery. The secondary battery top cover comprises a top cover piece, a post and a connecting assembly, wherein the top cover piece is provided with a through hole; the post is mounted in the through hole; and the connecting assembly is arranged between the top cover piece and the post, and is used for fixing the post onto the top cover piece. The post has at least one through hole and an electrode contact region, the at least one through hole being configured to allow a tab inside a battery to pass therethrough, and the electrode contact region being configured to be in electrical contact with the tab that passes through the at least one through hole. In the secondary battery top cover of the present application, at least one through hole is provided in the post, such that a tab is welded to the post outside a case, which eliminates an internal short circuit of a battery that is caused by welding slag or welding filings, etc. generated by internal welding of the battery, and also eliminates associated thermal runway.
Inventors:
LU LIN (CN)
LI SHUNLI (CN)
JIANG ZHIYI (CN)
LI SHUNLI (CN)
JIANG ZHIYI (CN)
Application Number:
PCT/CN2023/091741
Publication Date:
November 02, 2023
Filing Date:
April 28, 2023
Export Citation:
Assignee:
TRINA STORAGE SOLUTIONS JIANGSU CO LTD (CN)
International Classes:
H01M10/0525; H01M50/176; H01M50/15; H01M50/528; H01M50/533
Foreign References:
| CN217606926U | 2022-10-18 | |||
| CN108565363A | 2018-09-21 | |||
| CN215834605U | 2022-02-15 | |||
| JP2017091723A | 2017-05-25 | |||
| US20210234220A1 | 2021-07-29 |
Attorney, Agent or Firm:
SHANGHAI PATENT & TRADEMARK LAW OFFICE, LLC (CN)
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