Low temperature preparation and characterization of (La,Sr)(Ga,Mg)O_(3-δ) electrolyte-based solid oxide fuel cells on Ni-support by aerosol deposition

摘要

Metal-supported solid oxide fuel cells consisting of Ni support, a screen-printed Ni-Gd_(0.1)Ce_(0.9)O_(2-δ) anode functional layer, aerosol-deposited dense (La,Sr)(Ga,Mg)O_(3-δ) electrolyte, and an aerosol-deposited porous (La,Sr)(Co,Fe)O_(3-δ)cathode were fabricated and characterized. Both electrolyte and the cathode maintained good adhesion after electrochemical test of the cell at 750 ℃, after the composition of anode functional layer was optimized. Microstructural analysis of powders and deposited films of electrolyte and cathode layers is presented. Maximum power density of 0.79 W/cm~2 was achieved at 750 ℃