A cathode material for a hard oxide fuel cell based on cobalt-containing perovskite-type oxides of the transition metals

摘要

The invention relates to solid oxide fuel cells, in particular to cathode materials based on complex oxides of transition metals. Said invention makes it possible to increase the conductivity of a cathode material and to reduce the thermal expansion factor thereof. The inventive perovskite-like oxide is in the form of a compound of general formula SrSUB1-x-y/SUBCaSUBy/SUBRSUBx/SUBCoSUB1-z/SUBMnSUBz/SUBOSUB3-t /SUB, wherein 0 x= 0.75; 0 = y=1.0; 0=z=1.0; R is an element from a Sm,Gd and Y-containing group.