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:
Dec. 30, 2025

Filed:

Dec. 04, 2020
Applicant:

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

Inventors:

Jing Li, Ningde, CN;

Wei Li, Ningde, CN;

Qingrui Xue, Ningde, CN;

Zige Zhang, Ningde, CN;

Xianwei Yang, Ningde, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/04 (2006.01); H01M 4/136 (2010.01); H01M 4/62 (2006.01); H01M 4/66 (2006.01); H01M 10/42 (2006.01);
U.S. Cl.
CPC ...
H01M 4/0404 (2013.01); H01M 4/136 (2013.01); H01M 4/621 (2013.01); H01M 4/625 (2013.01); H01M 4/662 (2013.01); H01M 4/667 (2013.01); H01M 10/4235 (2013.01);
Abstract

This application relates to an electrode plate, an electrochemical apparatus, a battery module, a battery pack, and a device. The electrode plate includes a current collector and an electrode active material layer disposed on at least one surface of the current collector. The current collector includes a support layer and a conductive layer disposed on at least one surface of the support layer, a single-sided thickness Dof the conductive layer satisfies: 30 nm≤D≤3 μm; and a conductive primer layer containing a conductive material and a binder is disposed between the current collector and the electrode active material layer, the binder in the conductive primer layer containing an acrylic based/acrylate based water-dispersible binder. The electrode plate of this application has good quality, and the electrochemical apparatus containing the electrode plate has a high energy density and a good electrical performance and long-term reliability.


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