Electrode materials based on lanthanum ferrite cobaltite for molten carbonate fuel cells

Abstract

New cathode and anode materials for fuel cells with an electrolyte based on alkali carbonate melts have been studied. The regions of the orthorhombic and rhombohedral phases in the LaFe_1–yCo_yO₃ + x/2Li₂O system in air and in contact with molten (Li_0.68K_0.32)₂CO₃ electrolyte were investigated. The electric conductivity was analyzed in the range 300–1020 K. The electrocatalytic activity in oxygen reduction was analyzed for the new cathode materials. A method for introducing the Al₂O₃ additive in the anode material was suggested. The polarization characteristics of the porous gas-diffusion electrodes were determined.