| 摘要 |
PURPOSE: Provided is a fuel cell to be used for a portable power source, an electric vehicle, a cogeneration system, etc., which is inexpensive and light in weight, and/or efficient in the utilization of thermal energy, and high in the corrosion resistance. CONSTITUTION: The polymer electrolyte fuel cell comprises a cell stack(216) comprising plural electrically conductive separator plates and electrolyte membrane-electrode assemblies respectively sandwiched between neighboring ones of the separator plates. Each of the electrolyte membrane-electrode assemblies comprises a pair of electrodes and a polymer electrolyte membrane sandwiched between a pair of electrodes. The fuel cell also includes a pair of current collecting plates sandwiching the cell stack; a pair of end plates sandwiching the cell stack provided with a pair of current collecting plates; a tightening unit for tightening a pair of end plates so as to apply a tightening pressure to the cell stack; gas supply and exhaustion unit for supplying, to the cell stack, and exhausting, from the cell stack, an oxidant gas and a fuel gas. The gas supply and exhaustion unit includes an oxidant gas inlet(202a), an oxidant gas outlet(202b), a fuel gas inlet(203a) and a fuel gas outlet(203b), and also comprising an oxidant gas flow channel for connecting the oxidant gas inlet and the oxidant gas outlet and a fuel gas flow channel for connecting the fuel gas inlet and the fuel gas outlet. Each of a pair of end plates is made of an electrically insulating resin-dominant material comprising resin as a main ingredient. |
