| 摘要 |
The polymer electrolyte fuel cell of the invention includes: an electrolyte membrane that is made of a solid polymer; catalyst electrode layers that are arranged and formed on two opposed faces of the electrolyte membrane; gas separators that form reactive gas supply flow paths to allow passage of reactive gases subjected to an electrochemical reaction to the catalyst electrode layers; a holder element that is located on periphery of the electrolyte membrane and the catalyst electrode layers to support at least the electrolyte membrane; an expansion element that is linked with the holder element to be expandable in an electrolyte membrane surface direction; and a fixation element that is linked with the expansion element to be fixed to the gas separators. This arrangement effectively prevents deterioration of the electrolyte membrane, due to expansion or contraction of the electrolyte membrane in the polymer electrolyte fuel cell. |
