An ultra-fast fabrication technique for anode support solid oxide fuel cells by microwave

摘要

An effective and facile technique has been developed for high temperature anode-electrolyte co-sintering of anode support solid oxide fuel cells by using microwave activated sparking plasma. A high sintering temperature of 1600 ℃ can be achieved in a few minutes time by discharging effect. Anode support substrate pellet is uniaxially pressed, and then dip-coated with a 10 jim yttria stabilized zirconia electrolyte layer. After the microwave co-sintering, La_(0.8)Sr_(0.2)MnO_x cathode is screen-printed onto electrolyte and sintered by conventional thermal method. The cell has stably operated in 3% humidified hydrogen for more than 130h.