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. 29, 2014
Filed:
Sep. 02, 2008
Applicants:
Koshi Takamura, Osaka, JP;
Yasuhiko Bito, Osaka, JP;
Inventors:
Koshi Takamura, Osaka, JP;
Yasuhiko Bito, Osaka, JP;
Assignee:
Panasonic Corporation, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 4/13 (2010.01); H01M 4/58 (2010.01);
U.S. Cl.
CPC ...
Abstract
A non-aqueous electrolyte battery including a negative electrode including metal lithium or a lithium alloy as a negative electrode active material, a positive electrode including a fluorinated graphite as a positive electrode active material, a separator provided between the positive electrode and the negative electrode, and a non-aqueous electrolyte. The concentration ratio [F]/[C] of fluorine atoms to carbon atoms on the surface of the fluorinated graphite is 1.0 or more and less than 1.8. This improves the large-current discharge characteristics particularly in a low temperature environment.