| 摘要 |
PURPOSE: To provide a new structure of a separator for a fuel cell whose cost is reduced and which is excellent in productivity and whose safety is enhanced and which is excellent in supply efficiency of reaction gas. CONSTITUTION: In a fuel cell stack formed by layering a plurality of cells 10 where electrodes 12 are arranged on both sides of solid electrolyte 11, it is used by being interposed between these cells. The obverse and the reverse of a metallic material excellent in workability are coated with a material excellent in electric conductivity, and a large number of projections 21 and 22 are arranged at proper intervals on these obverse and reverse. The projections are arranged so as to contact with cell surfaces of the fuel cell in the fuel cell stack. A space area 38 communicated and formed between the projections 21 between one side surface of a separator and the cells of the fuel cell becomes a fuel gas passing groove, and a space area communicated and formed between the projections 22 between the other side surface of the separator and the cells of the fuel cell becomes an oxidating agent gas passage groove. |
