The present invention is related to a proton exchange membrane fuel cell including a membrane electrode assembly (MEA) comprising a proton transmissive membrane, a catalytic anode layer on one face of the membrane, and a catalytic cathode layer on the othe...

An oxygen-containing gas flow field (32) for supplying an oxygen-containing gas from an oxygen-containing gas supply passage (20a) to an oxygen-containing gas discharge passage (20b) is formed on a first metal plate (14). The oxygen-containing gas flow fie...

A polymer electrolyte fuel cell includes an electric power generating cell provided with a fuel electrode (2), an oxidizer electrode (3), a polymer electrolyte membrane (1) sandwiched between the fuel electrode (2) and the oxidizer electrode (3) and a sepa...

A conductive and tabular separator is inserted into the gap between the fuel electrode layer of an i-th power generating cell and the oxidizer electrode layer of an (i+1)-th power generating cell adjacent to the fuel electrode layer. A fuel supply passage ...

A plurality of fuel cells (12) are stacked together. Current collectors (14a, 14b) are stacked on the fuel cells (12) at opposite ends in a stacking direction of said fuel cells (12), and heating members (16a, 16b) are stacked on the outside of said curren...

A bipolar plate assembly for a PEM fuel cell having a serpentine flow field formed on one side and interdigitated flow field formed on the opposite side such that a single plate member are usable for as an anode current collector and a cathode current coll...

Disclosed is a polymer electrolyte fuel cell including improved separators that cause no mixing of a fuel gas and an oxidant gas. The polymer electrolyte fuel cell comprises a plurality of membrane electrode assemblies and a plurality of conductive separat...

A proton exchange membrane fuel cell including a membrane electrode assembly comprising a proton transmissive membrane, a catalytic anode layer on one face of the membrane, and a catalytic cathode layer on the other face of the membrane. The fuel cell furt...

A fuel cell stack 10 comprises a power-generating cell 12 and a cooling cell 18 which are stacked, an insulating means 68 for electrically insulating the cooling medium supplied into the cooling cell 18 from the power-generating cell 12, and a conducting m...