Patent ID: 8741425

Claim:
An all ceramics solid oxide cell, the solid oxide cell comprising a multilayer structure comprising an anode layer comprising catalyst material, a cathode layer comprising catalyst material, and an electrolyte layer sandwiched between the anode layer and the cathode layer, wherein: the electrolyte layer comprises doped zirconia and has a thickness of from 40 to 300 μm, the anode layer and the cathode layer both comprise doped ceria or both comprise doped zirconia; and the multilayer structure comprising the anode layer, the electrolyte layer and the cathode layer is a structure wherein the anode layer and the cathode layer are porous and identical in a doped ceria composition or doped zirconia composition and in a thickness, thereby forming a symmetrical structure, wherein a surface of the anode layer or a surface of the cathode layer, or both, is further impregnated with a barrier material comprising doped ceria.