Verfahren zur Herstellung eines Kompositkörpers und Verwendung in Festoxidbrennstoffzelle

摘要

A solid electrolyte film (2) for a solid oxide fuel cell formed on a substrate by plasma spraying. The solid electrolyte film has a solid electrolyte structure composed of cerium oxide or zirconium oxide stabilized or partially stabilized with an alkaline earth metal element and/or a rare earth element. The solid electrolyte film has a true porosity of not more than 5%. The solid electrolyte film (2) is formed on the substrate by densifying a plasma sprayed solid electrolyte raw film, and heating the film in a temperature range of 1,300 to 1,700 DEG C. In the cell, the fuel electrode film (1) or the air electrode (3) is formed onto a surface of the solid electrolyte film.