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:
Mar. 29, 2016
Filed:
May. 02, 2013
Showa Denko K.k., Minato-ku, Tokyo, JP;
Hirokazu Murata, Tokyo, JP;
Nobuaki Ishii, Tokyo, JP;
Masataka Takeuchi, Tokyo, JP;
Mohit Jain, East Brunswick, NJ (US);
Nader M. Hagh, Franklin Park, NJ (US);
Farid Badway, Old Bridge, NJ (US);
Krista Martin, Edgewater, NJ (US);
SHOWA DENKO K.K., Tokyo, JP;
Abstract
A negative electrode material for a lithium ion battery, in which a fine particle (A) containing an element selected from Si, Sn, Ge and In and a carbon particle (B) obtained by heat-treating a petroleum-based coke and/or a coal-based coke at a temperature of 2,500° C. or more are connected through a chemical bond such as urethane bond, urea bond, siloxane bond and ester bond. Also disclosed are a negative electrode sheet obtained by coating a current collector with a paste containing the negative electrode material, a binder and a solvent, and then drying and pressure-forming the paste; and a lithium ion battery incorporating the negative electrode sheet.