Patent ID: 7294423
Filing Date: 2007-11-13
Classification: H01M,Y02E

Abstract:
1. A polymer electrolyte fuel cell comprising: a stack of unit cells, each of the unit cells comprising a hydrogen-ion conductive polymer electrolyte membrane, and an anode and a cathode sandwiching said polymer electrolyte membrane; a plurality of separators respectively provided between each two adjacent unit cells and including a gas flow channel for supplying a fuel gas to the anode, and a gas flow channel for supplying an oxidant gas to the cathode; an anode side current collector plate and a cathode side current collector plate that comprise a conductive carbon material and sandwich said stack of unit cells; and a pair of end plates that clamps said stack of unit cells and said anode side current collector plate and cathode side current collector plate under pressure, wherein: said anode side current collector plate has a terminal section that is operable to connect a power output coupling and is located closer to an inlet-side manifold for said fuel gas than to an outlet-side manifold for said fuel gas, and said cathode side current collector plate has a terminal section that is operable to connect a power output coupling and is located closer to an inlet-side manifold for said oxidant gas than to an outlet-side manifold for said oxidant gas.