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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.:

US 11824212 B1

PDFFull Text
Date of Patent:
Nov. 21, 2023

Filed:

Oct. 27, 2021

Surface-treated steel plate for cell container

Applicant:

Toyo Kohan Co., Ltd., Tokyo, JP;

Inventors:

Kengo Asada, Yamaguchi, JP;

Masao Suda, Yamaguchi, JP;

Kota Sadaki, Yamaguchi, JP;

Hideyuki Minagi, Yamaguchi, JP;

Assignee:

TOYO KOHAN CO., LTD., Tokyo, JP;

Attorney:

MUNCY, GEISSLER, OLDS & LOWE, P.C.

Primary Examiner:

Michael E La Villa

Int. Cl.
CPC ...
B32B 15/04 (2006.01); B32B 15/18 (2006.01); B32B 15/01 (2006.01); C23C 28/02 (2006.01); C23C 10/20 (2006.01); C23C 10/30 (2006.01); C23C 10/02 (2006.01); C23C 10/18 (2006.01); C23C 10/28 (2006.01); C23C 10/08 (2006.01); C23C 10/60 (2006.01); C23C 30/00 (2006.01); C25D 3/12 (2006.01); C25D 7/00 (2006.01); C25D 7/06 (2006.01); C25D 5/48 (2006.01); C25D 5/50 (2006.01); H01M 50/124 (2021.01); H01M 50/10 (2021.01); H01M 50/107 (2021.01); H01M 50/116 (2021.01); H01M 50/213 (2021.01); H01M 50/119 (2021.01); H01M 50/133 (2021.01); H01M 50/134 (2021.01); H01M 50/145 (2021.01); H01M 50/131 (2021.01);
U.S. Cl.
CPC ...
H01M 50/124 (2021.01); B32B 15/013 (2013.01); B32B 15/015 (2013.01); B32B 15/04 (2013.01); B32B 15/043 (2013.01); B32B 15/18 (2013.01); C23C 10/02 (2013.01); C23C 10/08 (2013.01); C23C 10/18 (2013.01); C23C 10/20 (2013.01); C23C 10/28 (2013.01); C23C 10/30 (2013.01); C23C 10/60 (2013.01); C23C 28/02 (2013.01); C23C 28/021 (2013.01); C23C 28/023 (2013.01); C23C 30/00 (2013.01); C23C 30/005 (2013.01); C25D 3/12 (2013.01); C25D 5/48 (2013.01); C25D 5/50 (2013.01); C25D 7/00 (2013.01); C25D 7/0614 (2013.01); H01M 50/107 (2021.01); H01M 50/119 (2021.01); H01M 50/1245 (2021.01); H01M 50/133 (2021.01); H01M 50/134 (2021.01); H01M 50/145 (2021.01); H01M 50/213 (2021.01); B32B 2250/03 (2013.01); B32B 2311/22 (2013.01); B32B 2311/30 (2013.01); B32B 2439/00 (2013.01); H01M 50/1243 (2021.01); H01M 50/131 (2021.01); Y02E 60/10 (2013.01); Y10T 428/12937 (2015.01); Y10T 428/12944 (2015.01); Y10T 428/12951 (2015.01); Y10T 428/12958 (2015.01); Y10T 428/12965 (2015.01); Y10T 428/12972 (2015.01); Y10T 428/12979 (2015.01); Y10T 428/12993 (2015.01); Y10T 428/2495 (2015.01); Y10T 428/24942 (2015.01); Y10T 428/24967 (2015.01); Y10T 428/24975 (2015.01); Y10T 428/263 (2015.01); Y10T 428/264 (2015.01); Y10T 428/265 (2015.01); Y10T 428/27 (2015.01);
Abstract

A surface-treated steel sheet for a battery container, including a steel sheet, an iron-nickel diffusion layer formed on the steel sheet, and a nickel layer formed on the iron-nickel diffusion layer (and constituting the outermost layer, wherein when the Fe intensity and the Ni intensity are continuously measured from the surface of the surface-treated steel sheet for a battery container along the depth direction with a high frequency glow discharge optical emission spectrometric analyzer, the thickness of the iron-nickel diffusion layer being the difference between the depth at which the Fe intensity exhibits a first predetermined value and the depth at which the Ni intensity exhibits a second predetermined value is 0.04 to 0.31 μm; and the total amount of the nickel contained in the iron-nickel diffusion layer and the nickel contained in the nickel layer is 4.4 g/mor more and less than 10.8 g/m.

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