首页>
外国专利>
Titanium material or titanium alloy material for fuel cell separator having excellent electrical conductivity and durability against carbon contact, fuel cell separator using the same, and fuel cell
Titanium material or titanium alloy material for fuel cell separator having excellent electrical conductivity and durability against carbon contact, fuel cell separator using the same, and fuel cell
[Object] To increase contact conductivity with carbon and durability of a titanium or titanium alloy material for a fuel cell separator so as to increase the lifetime of a fuel cell. [Solution] Provided is a titanium or titanium alloy material for a fuel cell separator having a surface shape in which a plurality of projections are distributed, and a titanium oxide film on a surface of the projections. Fine projections are assumed to increase the contact conductivity remarkably. The present invention has high usability in the cell manufacturing industry.
展开▼