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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 12620581 B1

PDFFull Text
Date of Patent:
May. 05, 2026

Filed:

Dec. 01, 2022

Electrode piece and battery

Applicant:

Zhuhai Cosmx Battery Co., Ltd., Zhuhai, CN;

Inventors:

Shuanghu Zhang, Zhuhai, CN;

Jian Zhang, Zhuhai, CN;

Leiming Sun, Zhuhai, CN;

Assignee:

ZHUHAI COSMX BATTERY CO., LTD., Zhuhai, CN;

Attorney:

Kilpatrick Townsend & Stockton LLP

Primary Examiner:

Laura Weiner

Int. Cl.
CPC ...
H01M 4/36 (2006.01); H01M 4/133 (2010.01); H01M 4/134 (2010.01); H01M 4/64 (2006.01); H01M 4/70 (2006.01); H01M 10/0525 (2010.01); H01M 4/02 (2006.01); H01M 4/136 (2010.01); H01M 4/38 (2006.01); H01M 4/48 (2010.01); H01M 4/485 (2010.01); H01M 4/583 (2010.01);
U.S. Cl.
CPC ...
H01M 4/366 (2013.01); H01M 4/133 (2013.01); H01M 4/134 (2013.01); H01M 4/64 (2013.01); H01M 4/70 (2013.01); H01M 10/0525 (2013.01); H01M 2004/027 (2013.01); H01M 4/136 (2013.01); H01M 4/386 (2013.01); H01M 4/48 (2013.01); H01M 4/485 (2013.01); H01M 4/583 (2013.01);
Abstract

The present disclosure provides an electrode piece and a battery. The electrode piece includes a current collector and a functional layer located on a first surface of the current collector, the first surface is provided with a tab, and the functional layer is composed of a normal area away from the tab and a recessed area near the tab, and a thickness of the recessed area is less than a thickness of the normal area. The present disclosure can effectively prevent problems such as excessive thickness of part of a cell near the tab, thereby improving battery qualities such as safety and charging/discharging rate.

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Zhang, Shuanghu. (2026). Electrode piece and battery (U.S. Patent No. 12620581). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12620581

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