摘要 |
PURPOSE:To prevent the generation of a large gas leakage even when a crack is generated at an electrolyte plate, and to improve the safety, by composing the cell with thick sheet of an electrolyte plate arranged at the cathode side, a thin sheet of the catalyst plate arranged at the cathode side, and a metallic powder sintered plate arranged between the both sheets. CONSTITUTION:An electrolyte plate 1 is divided into a thick sheet 9 and a thin sheet 10, and a metallic powder sintered plate 11 is furnished between the both sheets 9 and 10 to compose a fuel cell. The thin sheet 10 is contacted to an anode 2 while the thick sheet 9 is contacted to a cathode 3, and, the sheets 9 and 10 and the metallic powder sintered plate 11 are all made in the same form larger than the anode 2 and the cathode 3. When the thick sheet 9 of the electrolyte plate 1 is cracked, the metallic powder sintered plate 11 prevents the cross leakage of the fuel, and the strength of the metallic powder sintered plate 11 is maintained by the sheets 9 and 10 holding the plate 11. In such a composition, the cross leakage of the fuel is prevented and the safety of the fuel cell can be secured. |