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:
Jun. 30, 2026

Filed:

Oct. 25, 2022
Applicants:

Tsinghua University, Beijing, CN;

Hon Hai Precision Industry Co., Ltd., New Taipei, TW;

Inventors:

Zi-Xin Hong, Beijing, CN;

Zhen-Han Fang, Beijing, CN;

Jia-Ping Wang, Beijing, CN;

Shou-Shan Fan, Beijing, CN;

Assignees:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/36 (2006.01); C01B 32/158 (2017.01); H01M 4/133 (2010.01); H01M 4/134 (2010.01); H01M 4/38 (2006.01); H01M 4/587 (2010.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/364 (2013.01); C01B 32/158 (2017.08); H01M 4/133 (2013.01); H01M 4/134 (2013.01); H01M 4/366 (2013.01); H01M 4/386 (2013.01); H01M 4/587 (2013.01); C01B 2202/08 (2013.01); C01B 2202/22 (2013.01); C01B 2202/24 (2013.01); H01M 2004/021 (2013.01); H01M 2004/027 (2013.01);
Abstract

A lithium-ion battery anode is provided. The lithium-ion battery anode comprises a carbon nanotube three-dimensional network structure formed by a plurality of carbon nanotubes intertwined with each other. A plurality of nano-silicon particles coated with amorphous carbon, dispersed in the carbon nanotube three-dimensional network structure, and adhered to surfaces of the plurality of carbon nanotubes. The amorphous carbon is obtained by calcining a positively charged carbonizable polymer. And a carbon nanotube functional layer located on two opposite surfaces of the carbon nanotube three-dimensional network structure, to make the carbon nanotube three-dimensional network structure located between two carbon nanotube functional layers. The carbon nanotube functional layer comprises at least two super-aligned carbon nanotube films stacked and crossed with each other.


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