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. 21, 2015
Filed:
Oct. 28, 2012
Applicant:
Microvast New Materials (Huzhou) Co., Ltd., Huzhou, Zhejang Province, CN;
Inventors:
Assignee:
Microvast Power Systems Co., Ltd., Huzhou, Zhejiang Province, CN;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01B 1/06 (2006.01); H01M 4/133 (2010.01); H01M 4/1393 (2010.01); H01M 4/485 (2010.01); H01M 4/587 (2010.01); H01M 4/62 (2006.01);
U.S. Cl.
CPC ...
H01M 4/133 (2013.01); H01B 1/06 (2013.01); H01M 4/1393 (2013.01); H01M 4/485 (2013.01); H01M 4/587 (2013.01); H01M 4/62 (2013.01); Y02E 60/122 (2013.01);
Abstract
A method for preparing a negative electrode material of a lithium ion battery is provided. In the method, a solvent-thermal reaction of a graphite material and a modifier precursor in an organic solvent is conducted to form a reaction product. And then, the reaction product is dried. Next, a heat treatment is applied to the dried reaction product to obtain the negative electrode material. The negative electrode material prepared by the method has improved cycle stability and high current performance.