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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 9337495 B1

PDFFull Text
Date of Patent:
May. 10, 2016

Filed:

Aug. 28, 2014

Stainless separator for fuel cell and method of manufacturing the same

Applicant:

Hyundai Hysco Co., Ltd., Ulsan, KR;

Inventors:

Yoo Taek Jeon, Yongin, KR;

Kyeong Woo Chung, Seoul, KR;

Assignee:

HYUNDAI STEEL COMPANY, Incheon Metropolitan, KR;

Attorney:

Hauptman Ham, LLP

Primary Examiner:

Sarah A Slifka

Int. Cl.
CPC ...
H01M 8/02 (2006.01); C23C 22/46 (2006.01); C23C 22/50 (2006.01); C23G 1/08 (2006.01); C25D 11/34 (2006.01); C21D 9/00 (2006.01); C23C 8/04 (2006.01); C23C 8/08 (2006.01); C23C 8/22 (2006.01); C23C 8/26 (2006.01); C23C 14/00 (2006.01); C23C 14/48 (2006.01); H01M 8/10 (2016.01);
U.S. Cl.
CPC ...
H01M 8/021 (2013.01); C21D 9/0068 (2013.01); C23C 8/04 (2013.01); C23C 8/08 (2013.01); C23C 8/22 (2013.01); C23C 8/26 (2013.01); C23C 14/0036 (2013.01); C23C 14/48 (2013.01); C23C 22/46 (2013.01); C23C 22/50 (2013.01); C23G 1/085 (2013.01); C23G 1/088 (2013.01); C25D 11/34 (2013.01); H01M 8/0228 (2013.01); H01M 2008/1095 (2013.01); Y02E 60/50 (2013.01); Y02P 70/56 (2015.11);
Abstract

A stainless steel separator for fuel cells and a method of manufacturing the same are disclosed. The method includes preparing a stainless steel sheet as a matrix, performing surface modification on a surface of the stainless steel sheet to form a Cr-rich passive film having a comparatively increased amount of Cr in a superficial layer of the stainless steel sheet by decreasing an amount of Fe in the superficial layer of the stainless steel sheet, and forming a coating layer on the surface of the surface-modified stainless steel sheet. The coating layer is one selected from a metal nitride layer (MN), a metal/metal nitride layer (M/MN), a metal carbide layer (MC), and a metal boride layer (MB) (where 0.5≦x≦1, 0.42≦y≦1, 0.5≦z≦2).

Find Patent Forward Citations

Jeon, Yoo. (2016). Stainless separator for fuel cell and method of manufacturing the same (U.S. Patent No. 9337495). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9337495

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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