| 摘要 |
PURPOSE: To provide a fuel cell capable of preventing overflow of an electrolyte to a fuel side passage and drop in gas diffusion in a fuel side porous part, and storing the amount of the electrolyte sufficient to ensure the long life. CONSTITUTION: A plurality of unit cells each having a fuel electrode 2 and an oxidizing agent electrode 3 faced through an electrolyte matrix 1 are stacked through a gas separating plate 12 constituted with porous parts 13, 14 comprising a dense layer 12, ribs 13b, 14b having gas passages for perpendicularly passing a fuel gas and an oxidizing agent gas formed on both sides of the dense layer 12, and webs 13a, 14a to form a fuel cell. The volume occupied by pores of the fuel side porous part 13 forming the fuel gas passage is made larger than the volume occupied by pores of the oxidizing agent side porous part 14 forming the oxidizing agent gas passage. |
