COATING METHOD OF ELECTRODE OR ELECTROLYTE ON BASE MATERIAL BY COATING COLLOIDAL SOLUTION ON BASE MATERIAL, DRYING IT AND SINTERING THE PARTICLE LEFT ON THE BASE MATERIAL

摘要

PURPOSE: Provided is a method for coating an electrode or an electrolyte on a base material to form a thin and uniform film on the electrolyte or electrode on a fuel cell and to prevent the rapid change of thermal coefficient between a base material and a coating for inhibiting twisting. CONSTITUTION: The method comprises the steps of (100) coating a colloidal solution comprising a particle and a solvent on a base material(50); (110) drying the colloidal solution to allow the particle to be left on the base material; and (130) sintering the particle, wherein the base material comprises a first electrode or a first electrolyte and the particle comprises a second electrode or a second electrolyte. Preferably the base material comprises a material selected from the group consisting of copper-substituted bismuth vanadate, gadolinium-doped ceria and samarium-doped ceria; and the particle comprises a material selected from the group consisting of samarium-doped ceria, gadolinium-doped ceria, yttrium-stabilized zirconia and scandium-doped zirconia.