Katodenwerkstoff für eine Hartoxidbrennstoffzelle auf der Basis von kobalthaltigen perowskitähnlichen Oxiden der Übergangsmetalle
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 Sr<SUB>1-x-y</SUB>Ca<SUB>y</SUB>R<SUB>x</SUB>Co<SUB>1-z</SUB>Mn<SUB>z</SUB>O<SUB>3-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.
