Fuel Cell Separator, Fuel Cell Stack, Fuel Cell Vehicle, and Method of Manufacturing the Fuel Cell Separator

摘要

A fuel cell separator ( 1 ) of the present invention has a base material ( 5 ) formed of titanium, and a nitride compound layer ( 6 ) composed of titanium and nitrogen and provided on a surface of the base material ( 5 ). In the fuel cell separator ( 1 ), the contact resistance which occurs between a gas diffusion layer and the separator ( 1 ) is low, the corrosion resistance is excellent, and the separator ( 1 ) can be manufactured at low cost.