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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 12633539 B1

PDFFull Text
Date of Patent:
May. 19, 2026

Filed:

May. 20, 2024

Positive electrode sheet, secondary battery, battery module, battery pack and electrical apparatus

Applicant:

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

Inventors:

Xiang Zhou, Ningde, CN;

Yao Jiang, Ningde, CN;

Jiang Liu, Ningde, CN;

Baiqing Li, Ningde, CN;

Assignee:

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

Attorney:

Ladas & Parry LLP

Primary Examiner:

Laura Weiner

Int. Cl.
CPC ...
H01M 4/58 (2010.01); H01M 4/131 (2010.01); H01M 4/1315 (2010.01); H01M 4/36 (2006.01); H01M 4/38 (2006.01); H01M 4/505 (2010.01); H01M 4/525 (2010.01); H01M 4/62 (2006.01); H01M 4/02 (2006.01); H01M 4/64 (2006.01); H01M 10/0525 (2010.01);
U.S. Cl.
CPC ...
H01M 4/5825 (2013.01); H01M 4/131 (2013.01); H01M 4/1315 (2013.01); H01M 4/364 (2013.01); H01M 4/366 (2013.01); H01M 4/381 (2013.01); H01M 4/386 (2013.01); H01M 4/388 (2013.01); H01M 4/505 (2013.01); H01M 4/525 (2013.01); H01M 4/58 (2013.01); H01M 4/582 (2013.01); H01M 4/625 (2013.01); H01M 2004/021 (2013.01); H01M 2004/028 (2013.01); H01M 4/64 (2013.01); H01M 10/0525 (2013.01);
Abstract

A positive electrode sheet, a secondary battery, a battery module, a battery pack and an electrical apparatus are described. The positive electrode sheet includes a positive electrode current collector and a positive electrode film layer arranged on at least one surface of the positive electrode current collector and having a single-layer or multi-layer structure. When the positive electrode film layer is of the single-layer structure, at least one positive electrode film layer comprises both a first positive electrode active material and a second positive electrode active material with a chemical formula of LiAMnRPCOD; and/or, when the positive electrode film layer is of the multi-layer structure, at least one layer of the at least one positive electrode film layer includes both a first and second positive electrode active material. The secondary battery made of the positive electrode sheet has high energy density and high battery cell rate performance.

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