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. 05, 2016
Filed:
Feb. 15, 2013
Applicant:
Seiko Epson Corporation, Tokyo, JP;
Inventor:
Sukenori Ichikawa, Suwa, JP;
Assignee:
SEIKO EPSON CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 4/36 (2006.01); H01M 4/131 (2010.01); H01M 4/1391 (2010.01); C30B 23/02 (2006.01); C30B 29/22 (2006.01); H01M 4/525 (2010.01);
U.S. Cl.
CPC ...
H01M 4/366 (2013.01); C30B 23/02 (2013.01); C30B 29/22 (2013.01); H01M 4/131 (2013.01); H01M 4/1391 (2013.01); H01M 4/525 (2013.01); Y02E 60/122 (2013.01);
Abstract
An electrode active material layer for a lithium-ion secondary battery is formed from an electrode active material of layered crystal. The electrode active material having layered crystal is oriented in a layer direction of the electrode active material layer, and a plurality of through holes are formed from the surface of the electrode active material layer. The diameter of the through holes is preferably 10 μm to 5000 μm inclusive.