LOW CONTACT-RESISTANCE STAINLESS STEEL, TITANIUM, AND CARBON MATERIAL, FOR PROTON-EXCHANGE MEMBRANE FUEL CELL MEMBER

摘要

PROBLEM TO BE SOLVED: To provide a member capable of reducing contact resistance in order to enhance efficiency in the case of a proton-exchange membrane fuel cell. SOLUTION: This low contact-resistance stainless steel, titanium, or carbon material for the proton-exchange membrane fuel cell member is characterized in that a noble metal or a noble-metal alloy is deposited on a portion that generates contact resistance by making contact with another member. The noble metal or noble-metal alloy is deposited on a surface after an oxide film is removed therefrom, and the amount of deposition is preferably 5 nm or more.