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:
Nov. 18, 2014
Filed:
Nov. 28, 2007
Applicants:
Masayuki Iwama, Fukushima, JP;
Kenichi Kawase, Fukushima, JP;
Yoshikazu Kato, Fukushima, JP;
Nozomu Morita, Fukushima, JP;
Inventors:
Masayuki Iwama, Fukushima, JP;
Kenichi Kawase, Fukushima, JP;
Yoshikazu Kato, Fukushima, JP;
Nozomu Morita, Fukushima, JP;
Assignee:
Sony Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 4/02 (2006.01); H01M 4/13 (2010.01); H01M 6/16 (2006.01);
U.S. Cl.
CPC ...
Abstract
A battery realizing the superior cycle characteristics is provided. An electrode includes a current collector including an active-material-layer-formation region and a flat and smooth region having a surface roughness smaller than that of the active-material-layer-formation region, and an active material layer provided in the active-material-layer-formation region of the current collector. An electrode lead is connected to the flat and smooth region.