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:
Jan. 13, 2015
Filed:
Jan. 31, 2011
Applicants:
Takashi Fujinaga, Fukushima, JP;
Shunsuke Kurasawa, Fukushima, JP;
Momoe Adachi, Tokyo, JP;
Kenichi Kawase, Fukushima, JP;
Inventors:
Takashi Fujinaga, Fukushima, JP;
Shunsuke Kurasawa, Fukushima, JP;
Momoe Adachi, Tokyo, JP;
Kenichi Kawase, Fukushima, JP;
Assignee:
Sony Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 4/134 (2010.01); H01M 4/36 (2006.01); H01M 4/38 (2006.01); H01M 10/052 (2010.01); H01M 4/1395 (2010.01); H01M 4/04 (2006.01);
U.S. Cl.
CPC ...
H01M 4/134 (2013.01); H01M 4/366 (2013.01); H01M 4/386 (2013.01); H01M 10/052 (2013.01); H01M 4/1395 (2013.01); H01M 4/0421 (2013.01); Y02E 60/122 (2013.01); Y02T 10/7011 (2013.01);
Abstract
A lithium ion secondary battery having superior cycle characteristic is provided. The lithium ion secondary battery includes a cathode, an anode and an electrolyte. The anode has an anode active material layer including a plurality of anode active material fibers containing silicon as an element provided on an anode current collector.