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. 19, 2011
Filed:
Sep. 13, 2005
Satoshi Mizutani, Fukushima, JP;
Hiroshi Inoue, Fukushima, JP;
Akira Yamaguchi, Fukushima, JP;
Akinori Kita, Fukushima, JP;
Satoshi Mizutani, Fukushima, JP;
Hiroshi Inoue, Fukushima, JP;
Akira Yamaguchi, Fukushima, JP;
Akinori Kita, Fukushima, JP;
Sony Corporation, Tokyo, JP;
Abstract
A battery with a high capacity and superior cycle characteristics and an anode active material used in the battery are provided. An anode includes an anode active material capable of reacting with lithium. The anode active material includes at least tin, cobalt and carbon as elements, and the carbon content is within a range from 9.9 wt % to 29.7 wt % inclusive, and the ratio of cobalt to the total of tin and cobalt is within a range from 30 wt % to 70 wt % inclusive. Thereby, while a high capacity is maintained, cycle characteristics can be improved.