The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 20, 2026

Filed:

Dec. 21, 2022
Applicant:

Jiangsu Contemporary Amperex Technology Limited, Changzhou, CN;

Inventors:

Chengdu Liang, Changzhou, CN;

Shoujun Huang, Changzhou, CN;

Xinxiang Chen, Changzhou, CN;

Yulian Zheng, Changzhou, CN;

Peng Wang, Changzhou, CN;

Wei Li, Changzhou, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 50/325 (2021.01); H01M 50/103 (2021.01); H01M 50/166 (2021.01); H01M 50/317 (2021.01); H01M 50/60 (2021.01); H01M 50/618 (2021.01); H01M 50/627 (2021.01); H01M 50/655 (2021.01);
U.S. Cl.
CPC ...
H01M 50/325 (2021.01); H01M 50/103 (2021.01); H01M 50/166 (2021.01); H01M 50/317 (2021.01); H01M 50/618 (2021.01); H01M 50/627 (2021.01); H01M 50/655 (2021.01); H01M 50/668 (2021.01); H01M 2220/20 (2013.01); Y02E 60/10 (2013.01);
Abstract

An end cap assembly, a battery cell, a battery, and an electrical device are provided. The end cap assembly is applicable to a battery cell. The end cap assembly includes: an end cap body; a pressure relief component, connected to the end cap body, where a first through-hole configured to inject an electrolytic solution is made on the pressure relief component, and the pressure relief component is configured to be actuated when an internal pressure of the battery cell reaches a threshold, so as to release the internal pressure of the battery cell; and a closing component, detachably disposed on the pressure relief component, where the closing component is configured to close the first through-hole.


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Liang, Chengdu. (2026). End cap assembly, battery cell, battery, and electrical device (U.S. Patent No. 12770969). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12770969

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