| abstract |
A polymer electrolyte fuel cell having a high cell voltage is provided. A membrane electrode assembly including a cathode catalyst layer, an anode catalyst layer, and a solid polymer electrolyte membrane disposed between the cathode catalyst layer and the anode catalyst layer, and a membrane electrode assembly. 10, the first porous separator 12 disposed on the cathode catalyst layer 20 side, the second separator 18 disposed on the anode catalyst layer 22 side of the membrane electrode assembly 10, the cathode catalyst layer 20, and the first catalyst layer 20. A cathode intermediate layer 14 disposed so as to be in direct contact with the separator 12, wherein the cathode intermediate layer 14 includes carbon fibers having an average fiber diameter of 30 to 300 nm and an ion exchange resin. Molecular fuel cell 1. [Selection] Figure 1 |