Browse > Article
http://dx.doi.org/10.3795/KSME-B.2011.35.1.083

Study on Characterization of Solid Oxide Fuel Cell Subjected to Load Treatments  

Ahn, Kwon-Sung (School of Mechanical and Aerospace Engineering, Seoul Nat'l Univ.)
Choi, Hoon (School of Mechanical and Aerospace Engineering, Seoul Nat'l Univ.)
Cha, Suk-Won (School of Mechanical and Aerospace Engineering, Seoul Nat'l Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.35, no.1, 2011 , pp. 83-92 More about this Journal
Abstract
Evidence on the effect of $O_2$ reduction or current passage on the microstructure and morphology of the LSM and Ni-YSZ electrodes in solid oxide fuel cells. The microstructures of the electrodes were characterized as plate-like agglomerates. Current of $0.1\;A/cm^2$, $0.2\;A/cm^2$, $0.3\;A/cm^2$, at $800^{\circ}C$ were passed for 3 h. Then, we observed the cell structure and measured the cell performance before and after the experiment. There are changed with the load condition. The TPB of the cell increased when the cell structure changed. In particular, the decrease in activation loss is apparent as load increased. As a result, cell performance improved, and we confirmed that a optimal load condition existed.
Keywords
SOFC; Electrode; Load; Activation;
Citations & Related Records

Times Cited By SCOPUS : 0
연도 인용수 순위
  • Reference
1 Jiang, S.P. and Love, J.G., 2003, “Observation of Structural Change Induced by Cathodic Polarization on $(La,Sr)MnO_3$ Electrodes of Solid Oxide Fuel Cells,” Solid State Ionics 158, pp. 45-53   DOI   ScienceOn
2 Haider, M. A., Vance, A. A. and McIntosh, S., 2009, “Activation of LSM-Based SOFC Cathodes-Dependence of Mechanism on Polarization Time,” Trans. of the ECS, Vol. 25, No. 2, pp. 2293-2299
3 Liu, Y.L., Hagen, A., Barfod, R., Chen, M., Wang, H.J., Poulsen, F.W. and Hendriksen, P.V., 2009, “Microstructural Studies on Degradation of Interface Between LSM-YSZ Cathode and YSZ Electrolyte in SOFCs,”Solid State Ionics180, pp. 1298-1304   DOI   ScienceOn
4 Backhaus-Ricoult, M., 2006, “Inteface Chemistry in LSM-YSZ Composite SOFC Cathode,”Solid State Ionics177, pp. 2195-2200   DOI   ScienceOn
5 O’Hayre, R., Cha, S.-W., Colella, W. and Prinz, F. B., 2006, FUEL CELL FUNDAMENTALS, John Wiley and Sons, New York, pp. 209-224
6 Sun, W., Huang, X., Lő, Z., Zhao, L., Wei, B., Li, S., Chen, K., Ai, N. and Su, W., 2009, “NiO+YSZ Anode Substrate for Screen-Printing Fabrication of YSZ Electrolyte Film in Solid Oxide Fuel Cell,” Journal of Physicals and Chemistry of Solids 70, pp. 164-168   DOI   ScienceOn
7 Jorgensen, M.J., Primdahl, S., Bagger, C. and Mogensen, M., 2001, “Effect of Sintering Temperature on Microstructure and Performance of LSM-YSZ Composite Cathodes,” Solid State Ionics 139, pp. 1-11   DOI   ScienceOn