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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 11888148 B1

PDFFull Text
Date of Patent:
Jan. 30, 2024

Filed:

Mar. 25, 2021

Positive electrode plate, and electrochemical apparatus and electronic apparatus including the positive electrode plate

Applicant:

Ningde Amperex Technology Limited, Fujian, CN;

Inventors:

Shengqi Liu, Fujian, CN;

Dongdong Han, Fujian, CN;

Qingwen Zhang, Fujian, CN;

Rui Zhu, Fujian, CN;

Assignee:

NINGDE AMPEREX TECHNOLOGY LIMITED, Ningde, CN;

Attorney:

XSENSUS LLP

Primary Examiner:

Kenneth J Douyette

Int. Cl.
CPC ...
H01M 4/134 (2010.01); H01M 4/131 (2010.01); H01M 4/36 (2006.01); H01M 4/62 (2006.01); H01M 4/66 (2006.01); H01M 10/0525 (2010.01); H01M 4/505 (2010.01); H01M 4/52 (2010.01); H01M 4/485 (2010.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/134 (2013.01); H01M 4/131 (2013.01); H01M 4/366 (2013.01); H01M 4/485 (2013.01); H01M 4/505 (2013.01); H01M 4/52 (2013.01); H01M 4/623 (2013.01); H01M 4/663 (2013.01); H01M 10/0525 (2013.01); H01M 2004/028 (2013.01);
Abstract

A positive electrode plate includes a positive electrode current collector and two positive electrode active material layers on both surfaces of the positive electrode current collector. The positive electrode active material layer includes a positive electrode active material and graphene. And 7.74≤Dv50+0.05 THK≤10.2, Dv50 is a particle size of the positive electrode active material and THK is a thickness of the positive electrode plate. And 0.078≤w*CW+0.01n≤1.9, n is a quantity of layers of the graphene, w is a mass percentage of the graphene in the positive electrode active layer, and CW is a one-side coating weight of the positive electrode active material layer.

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Liu, Shengqi. (2024). Positive electrode plate, and electrochemical apparatus and electronic apparatus including the positive electrode plate (U.S. Patent No. 11888148). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11888148

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