FUEL CELL

PROBLEM TO BE SOLVED: To improve power generation efficiency by reducing resistance as the whole fuel cell stacked with battery cells with separators therebetween. SOLUTION: The fuel cell 10 integrally connects an anode gas diffusion passage portion 41 and a cathode gas diffusion passage portion 42 on both sides of the separator by a bridge 43 straddling the separator 50 between cells in each stacked battery cell 12. In one battery cell 12 of the adjacent battery cells 12 with the separator 50 therebetween, an electron associated with power generation travels from a membrane-electrode assembly 30 to the anode gas diffusion passage portion 41, moves to the cathode gas diffusion passage portion 42 in the battery cell 12 on the other side through the bridge 43, and reaches a cathode catalyst electrode 33 through a gas diffusion layer 35 on the cathode side. Thus, the separator 50 can be provided so as not to be involved in electron passage. COPYRIGHT: (C)2010,JPO&INPIT