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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.

Patent No.:

US 12785207 B1

PDFFull Text
Date of Patent:
Nov. 03, 2026

Filed:

Jul. 31, 2023

End cover assembly, battery cell, battery, and electric apparatus

Applicant:

Contemporary Amperex Technology (Hong Kong) Limited, Hong Kong, CN;

Inventors:

Haibo Ke, Ningde, CN;

Quankun Li, Ningde, CN;

Peng Wang, Ningde, CN;

Chengyou Xing, Ningde, CN;

Ningsheng Wu, Ningde, CN;

Kaihuan Yang, Ningde, CN;

Xiang Mei, Ningde, CN;

Lili Wu, Ningde, CN;

Assignee:

CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED, Hong Kong, CN;

Attorney:

ANOVA LAW GROUP, PLLC

Primary Examiner:

Raymond Alejandro

Int. Cl.
CPC ...
H01M 2/12 (2006.01); H01M 50/15 (2021.01); H01M 50/159 (2021.01); H01M 50/186 (2021.01); H01M 50/342 (2021.01); H01M 50/588 (2021.01); H01M 50/59 (2021.01);
U.S. Cl.
CPC ...
H01M 50/3425 (2021.01); H01M 50/15 (2021.01); H01M 50/159 (2021.01); H01M 50/186 (2021.01); H01M 50/588 (2021.01); H01M 50/59 (2021.01); H01M 2200/20 (2013.01);
Abstract

An end cover assembly includes an end cover and a pressure relief member. The pressure relief member is provided in the end cover, and the pressure relief member is provided with an indentation groove. The pressure relief member is configured to crack along the indentation groove to release internal pressure of a battery cell when internal pressure or temperature of the battery cell reaches a threshold. Hardness of the pressure relief member is lower than hardness of the end cover.

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Quick Actions:

Ke, Haibo. (2026). End cover assembly, battery cell, battery, and electric apparatus (U.S. Patent No. 12785207). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12785207

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