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. 31, 2024

Filed:

Nov. 25, 2021
Applicant:

Guangdong Kaijin New Energy Technology Co., Ltd., Dongguan, CN;

Inventors:

Chuanchang Ge, Guangdong, CN;

Yongjun Yang, Guangdong, CN;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 4/62 (2006.01); H01M 4/583 (2010.01); H01M 10/0525 (2010.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/583 (2013.01); H01M 4/622 (2013.01); H01M 4/624 (2013.01); H01M 10/0525 (2013.01); H01M 2004/021 (2013.01);
Abstract

A carbon-based anode material having a surface formed with slightly oxidized pores, includes by weight: 10-30 parts of clay minerals, 5-8 parts of chitosan, 0.1-1 part of a cationic polymer, 0.1-1 part of tris-1-(2-methylaziridinyl) phosphine oxide, 3-8 parts of a conductive agent, 3-8 parts of absolute ethyl alcohol, 1-3 parts of potassium oxalate, and 10-15 parts of a binder. According to the invention, the cationic polymer and the tris-1-(2-methylaziridinyl) phosphine oxide are added on the basis of the chitosan and the clay minerals, the cationic polymer contains polynuclear olation complex ions with a high positive electrovalence, thus being able to closely adhering to the surface of clay to form a three-dimensional net structure, so multiple slightly oxidized pores are formed in the surface of the obtained carbon-based material in a carbonization process, and the finally obtained carbon-based anode material has good charge-discharge performance and cycle performance.


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