| 摘要 |
A solid polymer fuel cell has a separator in which a separator board formed therein passages and manifolds are interposed between two frames. The separator board includes coupling parts between the manifold and the passages, which have a digit-like or grid-like support structure, and the coupling parts are held between the frames within spaces in a gas introduction manifold and a gas discharge manifold which are formed in the separator board. With this arrangement, reaction gas flows through spaces which are defined, within the coupling parts formed in the separator board, by the digit-like parts or the grid-like parts and the two frames. With this configuration, gas crossing along the separator board is prevented. Further, with the provision of parts for turning back reaction gas on the insides of the frames, a serpentine passage structure can be obtained.
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