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.:
Date of Patent:
Apr. 29, 2025
Filed:
Apr. 21, 2021
Btr New Material Group Co., Ltd., Shenzhen, CN;
Peng He, Shenzhen, CN;
Chengmao Xiao, Shenzhen, CN;
Jianguo Ren, Shenzhen, CN;
Xueqin He, Shenzhen, CN;
BTR NEW MATERIAL GROUP CO., LTD., Guangdong, CN;
Abstract
The present disclosure relates to a porous nano-silicon-based composite material, an anode and a lithium ion battery and a preparation method thereof. The silicon-based composite material comprises nano active particles and graphite, and the nano active particles comprise porous nano-silicon; The graphite has a pore structure in which the nano active particles are embedded, and/or the graphite has a layered structure in which the nano active particles are embedded; Compared with the traditional carbon-coated silicon anode material, the silicon-based anode material prepared by the present disclosure has the advantage of lower expansion rate and thus improves cycle performance.