| 摘要 |
PURPOSE:To ensure airtightness and enhance the durability by sealing such constituent elements of a fuel cell to one another as a separator, single cell, spacer, and metal meshing not using any sealing agent but by means of mechanical seal. CONSTITUTION:In surface contacting condition, a spacer 2 is sandwiched by the periphery of the undersurface of an upper separator 1 confronting the fuel electrode 5 of a single cell 3 and the periphery of the oversurface of a solid electrolyte layer 4. At the same time, the periphery of the undersurface of the electrolyte layer 4 and the periphery of the oversurface of a lower separator 1 are pressed into the direct surface contacting condition. In the resilient compressed state, a heat resistant metal meshing 7 is interposed between the oversurface of the fuel electrode 5 and the undersurface of the upper separator 1. Gas is supplied from gas feed hole provided at the periphery of this single cell of the described structure so that it flows over the surfaces of the two electrodes, and thereby an electric power is generated. Thus the airtightness is ensured and durability is enhanced by sealing the single cell and separator from one another not using any sealing agent but by means of mechanical seal. |
