Co-planar type single chamber solid oxide fuel cell with micro-patterned electrodes |
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Authors: | Sung-Jin Ahn Yong-Bum Kim Jooho Moon Jong-Ho Lee Joosun Kim |
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Affiliation: | (1) Department of Materials Science and Engineering, Yonsei University, Seoul, 120-749, Korea;(2) Nano-Materials Research Center, KIST, Seoul, 136-791, Korea |
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Abstract: | A co-planar type single chamber solid oxide fuel cell (SC-SOFC) with linearly patterned electrode structures on the same surface
as the electrolyte has been fabricated by robo-dispensing method. Paste materials of NiO-SDC-Pd cermet and (La0.7Sr0.3)0.95MnO3 (LSM) were selectively deposited onto a substrate of yttria stablized zirconia (YSZ) by extrusion through a syringe nozzle.
The dispensed pastes were solidified upon solvent evaporation, and the anode and the cathode were sintered at 1350∘C for 2 h and 1200∘C for 1h, respectively. We have fabricated SC-SOFCs that have a single electrode pair with varying anode-to-cathode distances
and interdigitated patterned electrodes with 2, 4, and 8 multiple pairs. The electrode microstructures of the resulting cells
were examined by SEM. The electrochemical performance of the SC-SOFCs was also analyzed using impedance spectroscopy and a
DC source meter. |
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Keywords: | Single chamber SOFC Patterned electrode Robo-dispensing |
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