Host: The Japan Society of Mechanical Engineers
Name : International Conference on Power Engineering-2021(ICOPE-2021)
Date : October 17, 2021 - October 21, 2021
A temperature-controlled microextrusion printing technique is proposed to increase the aspect ratio of the deposited ink filament and applied to the fabrication of solid oxide fuel cells to enhance their performance by enlarging the electrode–electrolyte interfacial area. A terpineol-based anode ink is prepared with yttria-stabilized zirconia and nickel oxide powder and its viscosity and wettability to an anode support disc were experimentally studied under various temperatures. The results show that at low temperature the viscosity of the anode ink is reduced and the wettability of the anode ink to substrate is decreased. This suggests that it is beneficial to fabricate anode filament on a cooled anode-support disc in the sense of aspect ratio. A patterned anode-supported SOFC was fabricated by temperature-controlled microextrusion printing technique. The cross-sectional structure investigation showed that the aspect ratio of the deposited anode filament is increase from 0.16 to 0.28 by employing the temperature-control method, yielding a greater interfacial enlargement, this results in further improvement in the electrochemical performance of the cell.
