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:
Jun. 25, 2024

Filed:

Dec. 31, 2020
Applicant:

Contemporary Amperex Technology Co., Limited, Fujian, CN;

Inventors:

Mianyu Xie, Fujian, CN;

Yongbin Wu, Fujian, CN;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 50/533 (2021.01); H01M 50/105 (2021.01); H01M 50/184 (2021.01);
U.S. Cl.
CPC ...
H01M 50/533 (2021.01); H01M 50/105 (2021.01); H01M 50/184 (2021.01);
Abstract

A secondary battery is provided, including an electrode assembly, a packaging bag, an electrode lead and an insulating member. The electrode assembly is housed in the packaging bag, an edge of the packaging bag has a sealing portion, and the electrode lead is connected to the electrode assembly and passes through the sealing portion; the sealing portion includes a main body region, a first step region and a first transition region, the first step region is located on two sides of the electrode lead in a thickness direction, the main body region and the first transition region are located on a same side of the first step region in a width direction, and the first transition region is connected between the first step region and the main body region; the insulating member surrounds an outer side of the electrode lead and isolates the sealing portion from the electrode lead.


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