SOLID OXIDE FUEL CELL, AND ELECTROLYTE LAYER-ANODE JOINED BODY PRODUCTION METHOD

摘要

In this SOFC, a solid electrolyte layer and an anode are integrated to form an electrolyte layer-anode joined body, the anode containing a nickel element and a first proton conduction body. The first proton conduction body is a first perovskite type oxide having proton conductivity wherein the first perovskite type oxide has an AXO3 type crystal structure, the A site containing Ba, and the X site containing Y and at least one kind selected from the group consisting of Zr and Ce. At least some of the nickel elements form NiO. In an XRD spectrum of the anode, when the relative intensity ratio between the metal Ni peak intensity INi and the NiO peak intensity INiO is INi/INiO ≤ 0.1, the anode porosity Pa is 10% by volume or greater.