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:
Feb. 14, 2023
Filed:
Nov. 29, 2018
Btr New Material Group Co., Ltd., Guangdong, CN;
Xingyang Liu, Guangdong, CN;
Haihui Zhou, Guangdong, CN;
Dongdong Li, Guangdong, CN;
Chengkun Zhou, Guangdong, CN;
Jianguo Ren, Guangdong, CN;
Youyuan Huang, Guangdong, CN;
Min Yue, Guangdong, CN;
BTR NEW MATERIAL GROUP CO., LTD., Guangdong, CN;
Abstract
A natural graphite-based modified composite material, a preparation method therefor, and a lithium ion battery comprising the modified composite material. The natural graphite-based modified composite material comprises natural graphite and non-graphitized carbon coated on the inner and outer surfaces of the natural graphite. The preparation method comprises: (1) subjecting spherical natural graphite to isotropic treatment; (2) performing granularity control and shaping treatment; (3) subjecting the inner surface and the outer surface of the material obtained in step (2) to simultaneous modification; and (4) performing carbonization, so as to obtain a natural graphite-based modified composite material.