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. 31, 2015
Filed:
Feb. 06, 2008
Applicants:
Satoshi Mizutani, Fukushima, JP;
Hiroshi Inoue, Fukushima, JP;
Akinori Kita, Fukushima, JP;
Akira Yamaguchi, Fukushima, JP;
Inventors:
Satoshi Mizutani, Fukushima, JP;
Hiroshi Inoue, Fukushima, JP;
Akinori Kita, Fukushima, JP;
Akira Yamaguchi, Fukushima, JP;
Assignee:
Sony Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/38 (2006.01); H01M 10/0569 (2010.01); H01M 4/134 (2010.01); H01M 4/36 (2006.01); H01M 4/58 (2010.01); H01M 10/0587 (2010.01); H01M 4/52 (2010.01); H01M 4/46 (2006.01); H01M 4/587 (2010.01); H01M 4/62 (2006.01); H01M 10/0525 (2010.01); H01M 10/42 (2006.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 10/0569 (2013.01); H01M 4/134 (2013.01); H01M 4/364 (2013.01); H01M 4/38 (2013.01); H01M 4/5805 (2013.01); H01M 10/0587 (2013.01); H01M 4/52 (2013.01); H01M 4/387 (2013.01); H01M 4/386 (2013.01); H01M 4/463 (2013.01); H01M 4/587 (2013.01); H01M 4/625 (2013.01); H01M 10/0525 (2013.01); H01M 10/4235 (2013.01); H01M 2004/021 (2013.01); H01M 2004/027 (2013.01); Y02E 60/122 (2013.01);
Abstract
A battery with the high capacity, the superior cycle characteristics, and the superior initial charge and discharge efficiency, and an anode active material used for it are provided. The anode active material contains at least tin, cobalt, carbon, and phosphorus as an element. A carbon content is from 9.9 wt % to 29.7 wt %, a phosphorus content is from 0.1 wt % to 2.2 wt %, and a cobalt ration to the total of the tin and the cobalt is from 24 wt % to 70 wt %.