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. 08, 2015
Filed:
Mar. 06, 2012
Applicants:
Manabu Watanabe, Yokosuka, JP;
Osamu Tanaka, Yokosuka, JP;
Masao Yoshida, Zushi, JP;
Inventors:
Assignee:
NISSAN MOTOR CO., LTD., Yokohama-shi, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01B 31/36 (2006.01); C22C 18/00 (2006.01); H01M 4/36 (2006.01); C22C 28/00 (2006.01); C22C 30/06 (2006.01); C01B 33/06 (2006.01); H01M 4/38 (2006.01); H01M 4/42 (2006.01);
U.S. Cl.
CPC ...
H01M 4/364 (2013.01); C01B 31/36 (2013.01); C01B 33/06 (2013.01); C22C 18/00 (2013.01); C22C 28/00 (2013.01); C22C 30/06 (2013.01); H01M 4/386 (2013.01); H01M 4/42 (2013.01);
Abstract
A negative electrode active material for an electric device includes an alloy containing silicon in a range from 25% to 54% exclusive, carbon in a range from 1% to 47% exclusive, zinc in a range from 13% to 69% exclusive in terms of mass ratio, and inevitable impurities as a residue. For example, the negative electrode active material can be obtained with a multi DC magnetron sputtering apparatus by use of silicon, carbon and zinc as targets. An electric device using this negative electrode active material can improve the initial charge-discharge efficiency while keeping the cycle property.