0521 Development of Flat Tube Type-Solid Oxide Fuel Cell

Abstract

A SOFC cell of flat tube type with 3 channels or 4channels for fuel gas inside was successfully fabricated by ceramic wet processing. The anode-supported cell was composed of 8molY_2O_3-ZrO_2 (YSZ) electrolyte, Ni-YSZ anode and (La,Sr)MnO_3 cathode. Fuel gas was homogeneously supplied inside cells with pipes made of heat resistance alloy. The cell of 50cm^2 active area was operated to achieve maximum power density of 0.23W/cm^2 at 1000℃. It was expected that the cell performance of flat tube type would be improved by adjusting the porosity of anode and fuel gas flow etc. from the analysis results after the generation experiments.