| 摘要 |
PROBLEM TO BE SOLVED: To provide a fuel cell electrolyte that can be formed without undergoing high-temperature processing and has outstanding airtightness, as well as a solid oxide fuel cell including the electrolyte and a method for manufacturing the solid oxide fuel cell.SOLUTION: A part or the entire region in the thickness direction in gaps between columnar crystals C of a solid oxide having oxygen ion conductivity is filled with a microparticle (P). When the entire region in the thickness direction is filled, at least one kind of microparticles is selected from among microparticles made of a conductive material, an insulating material and an electrolyte material, as the microparticle P, and when the part in the thickness direction is filled, the microparticle other than microparticles made of the conductive material is selected. At least one layer of a layer Lp formed of similar microparticles or a solid oxide layer Ls having oxygen ion conductivity and functioning as an electrolyte is further formed on the top of the solid oxide. |
