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:
May. 05, 2015
Filed:
Feb. 21, 2013
Applicant:
Ngk Insulators, Ltd., Nagoya, JP;
Inventors:
Shuichi Ozawa, Nagoya, JP;
Akira Urakawa, Nagoya, JP;
Shigeki Okada, Nishio, JP;
Ryuta Sugiura, Toyohashi, JP;
Tsutomu Nanataki, Toyoake, JP;
Assignee:
NGK Insulators, Ltd., Nagoya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/13 (2010.01); H01M 4/04 (2006.01); H01M 4/139 (2010.01); H01M 4/70 (2006.01); H01M 4/1391 (2010.01);
U.S. Cl.
CPC ...
H01M 4/13 (2013.01); H01M 4/0404 (2013.01); Y02E 60/122 (2013.01); H01M 4/0471 (2013.01); H01M 4/139 (2013.01); H01M 4/1391 (2013.01); H01M 4/70 (2013.01);
Abstract
The present invention relates to a cathode and a cathode active material plate for a lithium secondary battery, and the production method thereof. There is a feature of the present invention in that grooves consisting of a concave portion and having an infinite form (for example, an infinite cell-like shape) in a planar view are formed in a principal surface of the cathode active material plate.