METALLIC SEPARATOR FOR FUEL CELL AND PROCESS FOR PRODUCING THE METALLIC SEPARATOR,申请号EP20080721418-传众专利搜索

METALLIC SEPARATOR FOR FUEL CELL AND PROCESS FOR PRODUCING THE METALLIC SEPARATOR

申请公布号：EP2157645(B1)

申请号：EP20080721418

申请日期：2008.03.05

申请公布日期：2013.11.20

申请人：

KABUSHIKI KAISHA KOBE SEIKO SHO

发明人：TANIFUJI SHINICHI;ITO HIROTAKA;SATO TOSHIKI;SUZUKI JUN;ITO YOSHINORI;HISAMOTO JUN

分类号：H01M8/02;B32B15/01;C22C5/02;C22C5/04;C22C14/00;C22C16/00;C22C27/02;C23C14/14;C23C14/16;C23C14/22;C23C14/24;C23C14/34;H01M8/10

主分类号：H01M8/02

摘要：A metal separator 1 for a fuel cell according to the invention is a metal separator for a fuel cell manufactured by using a metal substrate 2 with a flat surface, or with concave gas flow paths formed on at least a part of the surface. The metal separator 1 includes an acid-resistant metal film 3 formed over the surface of the metal substrate 2, and containing one or more kinds of non-noble metals selected from the group comprised of Zr, Nb, and Ta, and a conductive alloy film 4 formed over the acid-resistant metal film 3, 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 S1 of depositing an acid-resistant metal film, and a step S2 of 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.