| 摘要 |
PROBLEM TO BE SOLVED: To provide a fuel cell for allowing the improvement of sealability between an electrode membrane structural body and a separator and its manufacturing method. SOLUTION: A cell of the fuel cell composed of a solid polyelectrolyte membrane 18 and an anode diffusion electrode and a cathode diffusion electrode at each opposed end thereof is configured to be pinched between by the first separator 14 and the second separator 16. Around the solid polyelectrolyte membrane 18 is provided a projection 18a protruding from an anode diffusion electrode periphery and a cathode diffusion electrode periphery. Each groove portion 28 is provided in the position corresponding to the projection 18a, which is a periphery in the surface of respective separators 14, 16. The fuel cell is pinched between by the separators 14, 16 with a liquid sealant S applied to the groove portion 28 in close contact with the projection 18a. If the applied diameter of the liquid seal is regarded as C, the width dimension of the projection is set to (3/2).C or more. |
