| 摘要 |
PROBLEM TO BE SOLVED: To improve sealability between an electrode membrane structural body and a separator. SOLUTION: A cell of a fuel cell composed of a solid polyelectrolyte membrane 18 and an anode diffusion electrode (22, 26) and a cathode diffusion electrode (20, 24) at each opposed end thereof is pinched between by the separator 14 and the second separator 16. Around the solid polyelectrolyte membrane 18 is provided a projection 18a protruding from anode diffusion electrodes (22, 26) periphery and cathode diffusion electrodes (20, 24) periphery. Each groove portion 28 is provided in a position corresponding to the projection 18a which is a periphery in the surface of respective each separators 14, 16. The fuel cell is pinched between by the above separators 14, 16 with a fluid sealant S applied to the groove portion 28 in close contact with the projection 18a of the solid polyelectrolyte membrane 18 and in close contact with an end surface T of the anode diffusion electrodes (22, 26) and the cathode diffusion electrodes (20, 24). |
