La_(1-x)Sr_xCo_(1-y)Fe_yO_3 perovskite-type composite oxides are won- derful electronic-ionic conductor,which makes them be potential cath- ode materials for ITSOFC.

• La_(1-x)Sr_xCo_(1-y)Fe_yO_3钙钛矿型氧化物具有良好的电子和离子混合导电性能,可作为中温固体氧化物燃料电池(ITSOFC)的阴极材料。