Abstract
Anode-supported flat tubular solid oxide fuel cell (SOFC) was investigated to increase the cell power density. The anode-supported flat tube was fabricated by extrusion process. The porosity and pore size of Ni/YSZ ( yttria-stabilized zirconia) cermet anode were , respectively. The Ni particles in the anode were distributed uniformly and connected well to each other particles in the cermet anode. YSZ electrolyte layer and multilayered cathode composed of composite, LSM, and were coated onto the anode substrate by slurry dip coating, subsequently. The anode-supported flat tubular cell showed a performance of . The electrochemical characteristics of the flat tubular cell were examined by ac impedance method and the humidified fuel enhanced the cell performance. Areal specific resistance of the LSM-coated SUS430 by slurry dipping process as metallic interconnect was and then decreased to after 450hr. On the other hand, the LSM-coated Fecralloy by slurry dipping process showed a high area specific resistance.
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