| 摘要 |
PURPOSE:To obtain electrodes of uniform thickness and uniform composition by forming a pair of electrode catalyst layers in a structure independent of a pair of electrode base material to prevent the catalyst from soaking the electrode base material. CONSTITUTION:An electrode catalyst layer 7 of cell reaction and a compound layer 13 of an electrolyte matrix 1 and an electrode catalyst layer 6 are laminated and interposed between a pair of electrode base material layers 4, 5 which are further interposed between gas separator plates 10. Fuel and oxidizing agent gas supplied to gas passages 11,12 diffuse through a pair of porous electrode base material 4, 5 to reach the entire surfaces of a pair of electrode catalyst layers 6, 7, thereupon both gasses eract through the electrolyte matrix 1 to generate electricity. Thus soaking of the electrode base material 4, 5 by the catalyst is eliminated resulting in uniform catalyst layers. Moreover, in an electrode base material which is provided with an inner reservoir, the whr capacity namely the filling amo amount of the electrolytic solution can be accurately estimated and stable cell characteristics can be obtained. |
