Polymer electrolyte fuel cell and production method of the same

摘要

A polymer electrolyte fuel cell comprising: a hydrogen ion-conductive polymer electrolyte membrane; an anode and a cathode with the electrolyte membrane interposed therebetween; an anode-side conductive separator having a gas flow channel for supply of a fuel gas to the anode; and a cathode-side conductive separator having a gas flow channel for supply of an oxidant gas to the cathode, wherein each of the anode and the cathode comprises at least a catalyst layer in contact with the electrolyte membrane and a gas diffusion layer in contact with the catalyst layer and the separator, and at least one of the anode and the cathode contains a compound represented by the formula (I): R₁-O-{(C₂H₄O)_n-(C₃H₆O)_m}-R₂ (I) where R₁ and R₂ are independent of each other and each represents a hydrogen atom or an alkyl group having not less than 5 and not more than 15 carbon atoms, n and m are integers which satisfy 0<=n<=5, 0<=m<=5 and 1<=n+m<=5, and when neither n nor m is 0, at least one of the ethylene oxide group and at least one of the propylene oxide group are arranged in a random fashion.