Patent ID: 8980501
Filing Date: 2015-03-17
Classification: C23C,H01M,Y02E,Y02T

Abstract:
1. A fuel cell metal separator of a fuel cell, the fuel cell being formed by stacking the fuel cell metal separator and an electrolyte electrode assembly, the electrolyte electrode assembly comprising a pair of electrodes provided on both sides of an electrolyte, wherein: convex portions that abut against the electrolyte electrode assembly and concave portions that form reactant gas flow channels between the electrolyte electrode assembly and the concave portions, are provided in the metal separator by forming a metal plate with a wave-shaped profile; noble metal coating layers are formed on the convex portions; and the noble metal coating layers include main noble metal coating portions which are dot-shaped, and reticulate noble metal coating portions that extend completely around the main noble metal coating portions, wherein the reticulate noble metal coating portions are irregular reticulate noble metal coating portions formed by a surface roughening process using acid.