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:
Oct. 28, 2008
Filed:
Oct. 05, 2005
Yoshiyuki Ozaki, Wakayama, JP;
Kazuhiro Ota, Sanda, JP;
Hiroyuki Fujimoto, Sakurai, JP;
Koichi Morita, Nara, JP;
Yoshiyuki Ozaki, Wakayama, JP;
Kazuhiro Ota, Sanda, JP;
Hiroyuki Fujimoto, Sakurai, JP;
Koichi Morita, Nara, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Osaka Gas Chemicals Co., Ltd., Osaka, JP;
Abstract
In a high power output non-aqueous electrolyte secondary battery including a negative electrode including a graphitizable carbon material, the physical properties of the graphitizable carbon material is controlled. In a X-ray diffraction pattern of the graphitizable carbon material, a ratio of a peak intensity I(101) attributed to a (101) plane to a peak intensity I(100) attributed to a (100) plane satisfies 0<I(101)/I(100)<1.0. A ratio of a peak intensity I(110) attributed to a (110) plane to a peak intensity I(004) attributed to a (004) plane satisfies 0.7≦I(110)/I(004) ≦1.4. The graphitizable carbon material preferably has a specific surface area measured by BET method of 1 to 5 m/g.