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:
Oct. 30, 2012
Filed:
Mar. 05, 2008
Shinichi Tanifuji, Kobe, JP;
Hirotaka Ito, Kobe, JP;
Toshiki Sato, Kobe, JP;
Jun Suzuki, Kobe, JP;
Yoshinori Ito, Kobe, JP;
Jun Hisamoto, Kobe, JP;
Shinichi Tanifuji, Kobe, JP;
Hirotaka Ito, Kobe, JP;
Toshiki Sato, Kobe, JP;
Jun Suzuki, Kobe, JP;
Yoshinori Ito, Kobe, JP;
Jun Hisamoto, Kobe, JP;
Kobe Steel, Ltd., Kobe-shi, JP;
Abstract
A metal separatorfor a fuel cell according to the invention is a metal separator for a fuel cell manufactured by using a metal substratewith a flat surface, or with concave gas flow paths formed on at least a part of the surface. The metal separatorincludes an acid-resistant metal filmformed over the surface of the metal substrate, and containing one or more kinds of non-noble metals selected from the group comprised of Zr, Nb, and Ta, and a conductive alloy filmformed over the acid-resistant metal film, and containing one or more kinds of noble metals selected from the group comprised of Au and Pt, and one or more kinds of non-noble metals selected from the group comprised of Zr, Nb, and Ta. A method for manufacturing the metal separator for a fuel cell according to the invention includes a step Sof depositing an acid-resistant metal film, and a step Sof depositing a conductive alloy film. With this structure, the invention provides the metal separator for a fuel cell with an excellent acid resistance and a low contact resistance, and a manufacturing method thereof.