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:
Dec. 17, 2002
Filed:
Aug. 08, 2000
Applicant:
Inventors:
Tatsuoki Kohno, Tokyo, JP;
Norio Takami, Yokohama, JP;
Hiroki Inagaki, Yokohama, JP;
Tomokazu Morita, Funabashi, JP;
Shirou Takeno, Yokohama, JP;
Assignee:
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/58 ; C01B 3/100 ;
U.S. Cl.
CPC ...
H01M 4/58 ; C01B 3/100 ;
Abstract
The present invention provides a nonaqueous electrolyte secondary battery, comprising a nonaqueous electrolyte, a positive electrode, and a negative electrode containing a negative electrode active material, wherein the negative electrode active material contains a composite material having a microstructure containing a carbon-containing phase and a crystal phase having an average size falling within a range of between 0.01 &mgr;m and 10 &mgr;m.