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. 23, 2024
Filed:
Nov. 29, 2018
Applicant:
Btr New Material Group Co., Ltd., Guangdong, CN;
Inventors:
Tengyu Liang, Guangdong, CN;
Chunlei Pang, Guangdong, CN;
Jianguo Ren, Guangdong, CN;
Min Yue, Guangdong, CN;
Assignee:
BTR NEW MATERIAL GROUP CO., LTD., Guangdong, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/48 (2010.01); H01M 4/36 (2006.01); H01M 4/587 (2010.01); H01M 10/0525 (2010.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/483 (2013.01); H01M 4/366 (2013.01); H01M 4/587 (2013.01); H01M 10/0525 (2013.01); H01M 2004/021 (2013.01); H01M 2004/027 (2013.01);
Abstract
Disclosed are a lithium ion battery negative electrode material and a preparation method therefor. The negative electrode material comprises SiO(0.2<y<0.9) and an M compound, wherein M is a metal. The method of the present application comprises: subjecting a raw material comprising a SiOmaterial and the metal M to a redox reaction, wherein the O/Si ratio, i.e. x, of the SiO(0.5<x<1.5) material is adjusted to y (0.2<y<0.9), and at the same time, the metal M is oxidized to obtain the M compound.