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:
Mar. 03, 2026

Filed:

Jul. 28, 2022
Applicant:

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

Inventors:

Haizu Jin, Ningde, CN;

Hu Xu, Ningde, CN;

Yuqun Zeng, Ningde, CN;

Chengdu Liang, Ningde, CN;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 50/249 (2021.01); H01M 50/213 (2021.01); H01M 50/342 (2021.01); H01M 50/375 (2021.01);
U.S. Cl.
CPC ...
H01M 50/3425 (2021.01); H01M 50/213 (2021.01); H01M 50/249 (2021.01); H01M 50/375 (2021.01); H01M 2220/20 (2013.01);
Abstract

A battery, an electrical device, and a method and device for manufacturing a battery are provides. In some embodiments, the battery includes: a plurality of battery cells arranged along a first direction. Each battery cell includes an end cap and a housing, an opening is made at an end of the housing along the first direction, the end cap is configured to close the opening, and the housing includes a first wall extending along the first direction. A pressure relief region is provided on the first wall. The pressure relief region is configured to release pressure along a second direction when an internal pressure or temperature of the battery cell reaches a threshold. The second direction intersects the first direction. In this way, various embodiments improve safety of the battery.


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