| 摘要 |
PURPOSE:To provide a simple cell high in efficiency by interrupting the discharge flow path of pure hydrogen acting as fuel, and preventing pure hydrogen to be fed to the inside of the cell from being discharged outside. CONSTITUTION:An oxidant distributing plate 21 is provided for the cathode side of an electrode junction body 6, and each oxidant flow path 22 is formed in the distributing plate 21. And a pure hydrogen distributing plate 23 composed of porous material is provided for the anode side of the junction body 6, and each pure hydrogen flow path 24 is formed in the distributing plate 23. The aforesaid flow path 24 has no outlet, and is closed within the fuel cell. Moreover, a cooling water separator 25 is provided for the outer side of the distributing plate 23, and a cooling water flow path 26 is formed in the separator 25. In this case, pure hydrogen is fed to the anode of the electrode junction body 6 from the outside through the separator 25 and the flow path 24 of the distributing plate 23 so as to be used for cell reaction. Pure hydrogen not used for cell reaction is interrupted by the flow path 24, and thereby remains within the cell. Remaining pure hydrogen can thereby be fed so as to be used as fuel, so that the cell can be made simple and high in efficiency. |
