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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 11713513 B1

PDFFull Text
Date of Patent:
Aug. 01, 2023

Filed:

Feb. 06, 2019

Surface-treated steel sheet for battery containers and manufacturing method of surface-treated steel sheet for battery containers

Applicant:

Nippon Steel Corporation, Tokyo, JP;

Inventors:

Mamoru Saito, Tokyo, JP;

Takehiro Takahashi, Tokyo, JP;

Kiyokazu Ishizuka, Tokyo, JP;

Assignee:

NIPPON STEEL CORPORATION, Tokyo, JP;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Xiaobei Wang

Int. Cl.
CPC ...
C25D 5/12 (2006.01); H01M 50/124 (2021.01); B32B 15/01 (2006.01); C22C 19/03 (2006.01); C25D 5/50 (2006.01); C25D 7/00 (2006.01); H01M 50/133 (2021.01); H01M 50/128 (2021.01); H01M 50/119 (2021.01);
U.S. Cl.
CPC ...
C25D 5/12 (2013.01); B32B 15/015 (2013.01); C22C 19/03 (2013.01); C25D 5/50 (2013.01); C25D 7/00 (2013.01); H01M 50/119 (2021.01); H01M 50/124 (2021.01); H01M 50/128 (2021.01); H01M 50/133 (2021.01); Y10T 428/12931 (2015.01); Y10T 428/12937 (2015.01);
Abstract

To provide a surface-treated steel sheet for battery containers excellent in workability while maintaining battery characteristics and liquid leakage resistance, and a manufacturing method thereof. A surface-treated steel sheet for battery containers according to the present invention includes a Ni—Co—Fe-based diffusion alloy plating layer on at least one surface of a base steel sheet, in which the diffusion alloy plating layer is consisted of a Ni—Fe alloy layer and a Ni—Co—Fe alloy layer, which are arranged sequentially from the base steel sheet side, the diffusion alloy plating layer has a Ni coating weight within a range of 3.0 g/mor more and less than 8.74 g/mand a Co coating weight within a range of 0.26 g/mor more and 1.6 g/mor less, with a total of the Ni coating weight and the Co coating weight being less than 9.0 g/m, when a surface of the diffusion alloy plating layer is analyzed by an X-ray photoelectron spectroscopy, Co: 19.5 to 60%, Fe: 0.5 to 30%, and Co+Fe: 20 to 70% in atom % are satisfied, and a thickness of the Ni—Fe alloy layer is within a range of 0.3 to 1.3 μm.

Find Patent Forward Citations

Saito, Mamoru. (2023). Surface-treated steel sheet for battery containers and manufacturing method of surface-treated steel sheet for battery containers (U.S. Patent No. 11713513). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11713513

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