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:
Jan. 30, 2024

Filed:

Jul. 18, 2023
Applicant:

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

Inventors:

Huihui Liu, Ningde, CN;

Lingyun Feng, Ningde, CN;

Yanhuang Fan, Ningde, CN;

Lianwei Duan, Ningde, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/136 (2010.01); H01M 4/36 (2006.01); H01M 4/62 (2006.01); H01M 4/58 (2010.01); H01M 4/583 (2010.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/136 (2013.01); H01M 4/366 (2013.01); H01M 4/583 (2013.01); H01M 4/5825 (2013.01); H01M 4/622 (2013.01); H01M 4/625 (2013.01); H01M 2004/021 (2013.01); H01M 2004/028 (2013.01);
Abstract

A positive electrode plate includes a positive electrode current collector, a positive electrode film layer arranged on at least one surface of the positive electrode current collector, and a conductive undercoat layer positioned between the positive electrode current collector and the positive electrode film layer. The positive electrode film layer includes a positive electrode active material including an inner core and a shell coating the inner core. The shell includes a first coating layer coating the inner core, a second coating layer coating the first coating layer, and a third coating layer coating the second coating layer. The conductive undercoat layer includes a polymer, an aqueous binder, and a conductive agent.


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