| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a metal separator of a fuel cell which is excellent in acid resistance and has low contact resistance, and its manufacturing method. <P>SOLUTION: In the metal separator 1 of a fuel cell manufactured by using a metal base material 2 with a plane surface or a metal base material 2 wherein a recessed gas passage is formed at least on a part of its surface, an acid-resistant metal film 3 including one or more kinds of non-noble metal selected from Nb or Ta are prepared on the surface of the metal base material 2, and a conductive alloy film 4 including one or more kinds of noble metal selected from Au and Pt and one or more kinds of non-noble metal selected from Zr, Nb, and Ta are prepared on the acid-resistant metal film 3. The manufacturing method for a metal separator of fuel cell includes a process S1 of forming an acid-resistant metal film, and a process S2 of forming a conductive alloy film. <P>COPYRIGHT: (C)2010,JPO&INPIT |
