A fuel cell system bipolar plate formed of a graphite metal composite. The bipolar plate is formed of a metal foil formed of tantalum or a metal having a tantalum coating. Flexible graphite deposited in rows on each surface of the metal foil forms channels...

In order to provide a membrane electrode assembly that can further improve power generation performances of a fuel cell, the present invention allows a rib portion (22) that separates mutually adjacent gas flow passages (21) from each other to have a poros...

A porous fuel cell separator which is shaped as a porous plate composed of an electrically conductive material and a resin and which has gas flow channels on at least one surface thereof contains a far-infrared radiating material. Even when the separator i...