| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a polymer electrolyte fuel cell which protects metallic separators 20R, 20L from corrosion and does not increase contact resistance resulting from the corrosion by injecting fuel and an oxidizer from the inside of the separators 20R, 20L toward gas diffusion electrodes 14, 15. <P>SOLUTION: The fuel cell has a structure, in which a polymer ion exchange film 11 provided with a fuel electrode 12 and an oxidation electrode 13 on the both sides, respectively, is held between the diffusion electrodes 14, 15, and hollow metallic separators 20R, 20L with a plurality of protruded portions 21 are formed with a prescribed spacing thereon are opposed to the diffusion electrodes 14, 15. The fuel and the oxidizer are injected inside the separators 20R, 20L and blown out from gas exhaust holes 22 disposed on the top face of the protruded portions 21 toward the diffusion electrodes 14, 15. <P>COPYRIGHT: (C)2004,JPO&NCIPI |
