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:
Feb. 16, 2016
Filed:
Nov. 25, 2011
Applicants:
Daisuke Hashimoto, Oyama, JP;
Koji Hisayuki, Oyama, JP;
Inventors:
Daisuke Hashimoto, Oyama, JP;
Koji Hisayuki, Oyama, JP;
Assignee:
Showa Denko K.K., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/46 (2006.01); H01M 4/134 (2010.01); H01M 4/1395 (2010.01); B02C 23/06 (2006.01); H01M 4/36 (2006.01); H01M 10/052 (2010.01); H01M 4/62 (2006.01);
U.S. Cl.
CPC ...
H01M 4/463 (2013.01); B02C 23/06 (2013.01); H01M 4/134 (2013.01); H01M 4/1395 (2013.01); H01M 4/36 (2013.01); H01M 10/052 (2013.01); H01M 4/621 (2013.01); H01M 4/624 (2013.01); Y02E 60/122 (2013.01);
Abstract
The present invention provides an anode material for a lithium secondary battery, which material realizes prolongation of the cycle life of a lithium secondary battery. The present invention relates to an anode active material for a lithium secondary battery, the active material containing a powder produced by a step of forming an etched foil through etching of both surfaces of a foil of Al having a purity of 90 mass % or higher, and a step of shredding the etched foil, the steps being carried out in this order.