Electrolyte-cathode assembly for a fuel cell

摘要

An electrolyte cathode assembly for a solid electrolyte fuel cell suitable for operation at high temperatures comprises a gas-tight body made of a solid ceramic electrolyte which is capable of conducting oxygen ions having in contact with it and secured to it a layer of electron- conducting material which is a mixture of doped indium oxide In. sub.2 O. sub.3 and a ceramic material which is capable of conducting oxygen ions at the cell operating temperature, the said layer being covered by a compact surface layer of a ceramic material which is capable of conducting both electrons and oxygen ions.