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.:
Date of Patent:
Nov. 11, 2025
Filed:
Dec. 13, 2022
Contemporary Amperex Technology (Hong Kong) Limited, Hong Kong, CN;
Wanqiu Meng, Ningde, CN;
Qian Liu, Ningde, CN;
Yonghuang Ye, Ningde, CN;
Yulian Zheng, Ningde, CN;
Longfei Xue, Ningde, CN;
Xiaoxi Zhang, Ningde, CN;
Peng Wang, Ningde, CN;
CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED, Hong Kong, CN;
Abstract
A battery cell, a cover assembly, a battery, an electric apparatus, a method, and a device are provided. The battery cell includes an electrode assembly and a housing to accommodate the electrode assembly. A wall portion of the housing includes a body portion and a fastener, the fastener is provided with a recess communicating with the outside, and the recess is arranged on an inner surface of the fastener facing the electrode assembly and recessed in a direction leaving the electrode assembly. An air-permeable member covers the recess, and the air-permeable member is configured to allow gas to be discharged to the outside of the housing through the recess when a gas pressure inside the housing reaches a threshold. A bottom wall of the recess is provided with a protruding portion extending toward the electrode assembly, and the protruding portion is configured to be attached to the air-permeable member.