PRODUCTION AND CHARACTERIZATION OF VACUUM PLASMA SPRAYED ANODES FOR SOLID OXIDE FUEL CELLS

摘要

Cermet anodes produced by vacuum plasma spraying were developed for a new SOFC design. Various YSZ-Ni anodes using different starting materials and plasma spraying conditions were deposited onto 1 mm and 0.64 mm thick YSZ/(La,Sr)MnO_3 half cells. The electrochemical characterization of these cells in the temperature range 800-950 ℃ includes U-i-and IR-drop measurements and impedance spectroscopy at different operation conditions. The results are correlated with the fabrication parameters and compared to screen printed anodes. The overall losses in the cell are devided and attributed to the different cell components.