MANUFACTURE OF FUEL CELL ELECTRODE

摘要

PURPOSE:To enhance gas permeability by forming an electrode material supporting film having a continuous pore on the surface of an airtight solid electrolyte, then forming an electrode film within the continuous pore. CONSTITUTION:An electrode material supporting film 2 having a continuous pore is formed with a substance which is inactive against an electrolyte and an electrode material and has coefficient of thermal expansion near to that of the electrolyte. Slurry containing electrode material powder is brought into contact with the surface of the supporting film 2 to impregnate the slurry into the continuous pore, then the powder is sintered to form an electrode film 3 on the surface of the supporting film 2 and inside the continuous pore. The electrode having large heat-variation resistance and excellent gas permeability is formed on the surface of an airtight solid electrolyte 1.