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. 11, 2022
Filed:
Apr. 26, 2012
Applicants:
Tatsuo Tomomori, Yamaguchi, JP;
Eiji Yamane, Yamaguchi, JP;
Shinichirou Horie, Yamaguchi, JP;
Koh Yoshioka, Yamaguchi, JP;
Inventors:
Tatsuo Tomomori, Yamaguchi, JP;
Eiji Yamane, Yamaguchi, JP;
Shinichirou Horie, Yamaguchi, JP;
Koh Yoshioka, Yamaguchi, JP;
Assignee:
TOYO KOHAN CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 10/28 (2006.01); C25D 5/50 (2006.01); H01M 50/116 (2021.01); H01M 50/124 (2021.01); C25D 5/14 (2006.01); H01M 10/30 (2006.01); C25D 3/56 (2006.01); C25D 3/12 (2006.01);
U.S. Cl.
CPC ...
H01M 10/28 (2013.01); C25D 5/14 (2013.01); C25D 5/50 (2013.01); H01M 50/116 (2021.01); H01M 50/124 (2021.01); C25D 3/12 (2013.01); C25D 3/562 (2013.01); H01M 10/30 (2013.01); H01M 50/1245 (2021.01); H01M 2300/0014 (2013.01);
Abstract
A surface-treated steel sheet for battery cases is provided which comprises a nickel-cobalt alloy layer formed at the outermost surface of a plane to be an inner surface of a battery case, wherein a Co/Ni value at the surface of the nickel-cobalt alloy layer is within a range of 0.1 to 1.5 as determined by Auger electron spectroscopy analysis.