La0.6Ca0.4Fe0.8Ni0.2O3-delta (LCFN) is synthesized by liquid mixed method. Its crystalline structure is investigated by using X-ray diffraction. The results show that it has an orthorhombic perovskite structure with Pnma space group symmetry. The 8 mol % Y2O3-Stabilized ZrO2 (YSZ) is physically mixed with various weight percentages of LCFN to form composite cathodes. High-temperature 4-probe conductivity measurements are performed to investigate the electrical behavior of the system. Electrochemical impedance spectroscopy is carried out using symmetric cells with YSZ substrates under equilibrium condition from 850 degrees C to room temperature. The electrical conductivity is reduced from 271.3 S cm(-1) to 49.5 S cm(-1) for LCFN and 10 wt % of YSZ-added LCFN (LCFN-YSZ-9010), respectively. The best area specific resistance among all fabricated composites is 0.0080(1) Omega.cm(2) at 850 degrees C for LCFN-YSZ-9010 which exhibits almost 50% lower value than LCFN. The YSZ-based composites appear to be suitable than the other low temperature electrolyte based composite cathodes. (C) 2018 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.