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http://dx.doi.org/10.4191/kcers.2012.49.1.011

Degradation of SOFC Cell/Stack Performance in Relation to Materials Deterioration  

Yokokawa, Harumi (National Institute of Advanced Industrial Science and Technology (AIST))
Horita, Teruhisa (National Institute of Advanced Industrial Science and Technology (AIST))
Yamaji, Katsuhiko (National Institute of Advanced Industrial Science and Technology (AIST))
Kishimoto, Haruo (National Institute of Advanced Industrial Science and Technology (AIST))
Brito, M.E. (National Institute of Advanced Industrial Science and Technology (AIST))
Publication Information
Journal of the Korean Ceramic Society / v.49, no.1, 2012 , pp. 11-18 More about this Journal
Abstract
The characteristic features of solid oxide fuel cells are reviewed from the viewpoint of the thermodynamic variables to be developed inside cells/stacks particularly in terms of gradients of chemical potential, electrical potential and temperature and corresponding flows of air, fuel, electricity and heat. Examples of abrupt destruction of SOFC systems were collected from failures in controlling their steady flows, while continuous degradation was caused by materials behaviors under gradients of chemical potentials during a long operation. The local equilibrium approximation has been adopted in NEDO project on the durability/reliability of SOFC stacks/systems; this makes it possible to examine the thermodynamic stability/reactivity as well as mass transfer under the thermodynamic variable gradients. Major results of the NEDO project are described with a focus on degradation/deterioration of electrolyte and electrode materials.
Keywords
Solid oxide fuel cells; Degradation; Deterioration; Durability; Reliability; Local equilibrium approximation; Degradation mechanism;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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1 YuePing Xiong, Katsuhiko Yamaji, Haruo Kishimoto, Manuel E. Brito, Teruhisa Horita, and Harumi Yokokawa, "Deposition of Platinum Particles at LSM/ScSZ/Air Three-Phase Boundaries Using a Platinum Current Collector," Electrochem. Solid State Lett., 12 [3] B31-3 (2009).   DOI   ScienceOn
2 O. A. Marina, C. A. Coyle, E. C. Thomsen, E. D. Edwards, G. W. Coffey, and L. R. Pederson, "Degradation mechanism of SOFC anodes in coal gas containing phosphorus," Solid State Ionics, 181 430-40 (2010).   DOI   ScienceOn
3 Harumi Yokokawa, "Current Status of NEDO Project on Durability/Reliability of Solid Oxide Fuel Cell Stacks/Systems," ECS Transactions, 35 [1] 207-16(2011).
4 Haruo Kishimoto, Teruhisa Horita, Katsuhiko Yamaji, Manuel E. Brito, Yue-ping Xiong, and Harumi Yokokawa, "Sulfur Poisoning on SOFC Ni Anodes: Thermodynamic Analyses within Local Equilibrium Anode Reaction Model," J. Electrochem. Soc., 157 [6] B802-13 (2010).   DOI   ScienceOn
5 For example, S.P.S. Baswal, F. T. Ciacchi, S. Rajendran, J. Drennan, "An investigation of conductivity, microstructure and stability of electrolyte compositions in the system 9 mol% $(Sc_2O_3-Y_2O_3)-ZrO_2(Al_2O_3)$," Solid State Ionics, 109 167-86 (1998).   DOI
6 For example, M. Hattori, Y. Takeda, Y. Sakaki, A. Nakanishi, S. Ohara, K. Mukai, J-H. Lee, and T. Fukui, "Effect of aging on conductivity of yttria stabilized zirconia," J. Power Sources, 126 23-7 (2004).   DOI
7 Harumi Yokokawa, Katsuhiko Yamaji, M. E. Brito, Haruo Kishimoto, and Teruhisa Horita, "General Considerations on Degradation of SOFC Anodes and Cathodes to Impurities in Gases," J. Power Sources, 196 7070-75 (2011).   DOI   ScienceOn
8 Haruo Kishimoto, Taro Shimonosono, Katsuhiko Yamaji, Manuel E. Brito, Teruhisa Horita, and Harumi Yokokawa, "Phase Transformation of Stabilized Zirconia in SOFC Stacks," ECS Transactions, 35 [1] 1171-76 (2011).
9 M. Shimazu, T. Isobe, S. Ando, K. Hiwatashi, A. Ueno, K. Yamaji, H. Kishimoto, H. Yokokawa, A. Nakajima, and K. Okada, "Stability of $Sc_2O_3$ and $CeO_2$ co-doped $ZrO_2$ Electrolyte during the Operation of Solid Oxide Fuel Cells," Solid State Ionics, 182 120-26 (2011).   DOI   ScienceOn
10 H. Yokokawa, H. Kishimoto, K. Yamaji and T. Horita, "Generalization of Degradation Mechanisms in terms of Materials Chemical Nature, Operation Condition and Electrode Reaction Mechanisms," pp. 401-410, SOFC-XI, Ed. S.C. Singhal and H. Yokokawa, The Electrochem. Soc. Inc., 2009.
11 H. Yokokawa, "Understanding Materials Compatibility," Annu. Rev. Mater. Res., 33 581-610 (2003).   DOI   ScienceOn
12 H. Yokokawa, N. Sakai, T. Horita, and K. Yamaji, "Part 5 Performance and Degradations, Chapter 67 Impact of impurities on Materials Reliability in SOFC Stack/Modules," pp. 979-991, in Handbook of Fuel Cells Fundamentals Technology and Application, Vol. 6. Advances in Electrocatalyst, Materials, Diagnostics, and Durability, Ed. By W. Vielstich, H. Yokokawa and H. A. Gasteiger, John Wiley & Sons, 2009.
13 H. Yokokawa, T. Horita, N. Sakai, J. Yamaji, M. E.Brito, Y. P. Xiong, and H. Kishimoto, "Thermodynamic considerations on Cr poisoning in SOFC cathodes," Solid State Ionics, 177 3193-98 (2006).   DOI   ScienceOn
14 H. Yokokawa, H. Sakai, T. Horita, K. Yamaji, M. E. Brito, and H. Kishimoto, "Thermodynamic and kinetic considerations on degradations in solid oxide fuel cell cathodes,"J. Alloy Comp., 452 41-7 (2008).   DOI   ScienceOn
15 Harumi Yokokawa, Teruhisa Horita, Katsuhiko Yamaji, Haruo Kishimoto, and Manuel E. Brito, "Materials Chemical Point of View for Durability Issues in Solid Oxide Fuel Cells," Journal of the Korean Ceramic Society, 47 [1] 26-38 (2010).   DOI
16 K. Yamaji, N. Sakai, H. Kishimoto, T. Horita, M. E. Brito, and H. Yokokawa, "Part 3 Materials for High Temperature Fuel Cells, Chapter 37 Application of SIMS Technique on Durability of SOFC Materials," pp. 555-565, in Handbook of Fuel Cells Fundamentals Technology and Application, Vol. 5, Advances in Electrocatalyst, Materials, Diagnostics, and Durability, Ed. by W. Vielstich, H. Yokokawa and H. A. Gasteiger, John Wiley & Sons, (2009).
17 T. Horita, H. Kishimoto, K. Yamaji, M. E. Brito, Y. P. Xiong, H. Yokokawa, Y. Hori, and I. Miyauchi, "Effects of impurities on the degradation and long-term stability for solid oxide fuel cells," J. Power Sources 193 194-198 (2009).   DOI   ScienceOn
18 H. Yokokawa, T. Horita, K. Yamaji, H. Kishimoto, Y. P. Xiong, and M. E. Brito, "Effect of contamination on the Durability of SOFC Stacks and Modules in Real Operation Condition," Proceedings of 8th European Solid Oxide Fuel Cell Forum, B1004, July 2008.
19 H. Yokokawa and N. Sakai, "Part 4. Fuel Cell Principle, Systems and Applications, Chapter 13 History of High Temperature Fuel Cell Development," pp 219-266, in Handbook of Fuel Cells Fundamentals Technology and Application, Vol. 1, Fundamentals and Survey of Systems, Ed. By W. Vielstich, A. Lamm and H. A. Gasteiger, John Wiley & Sons, 2003.
20 H. Yokokawa and T. Horita, "Durability, Reliability and Cost Issues from Solid Oxide Fuel Cell Materials Point of View," in Encyclopedia of Sustainability Science and Technology, Springer, to be published
21 H. Yokokawa, "Part 5 Performance and Degradations, Chapter 63 Overview of Solid Oxide Fuel Cell Degradation," pp. 923-932 in Handbook of Fuel Cells Fundamentals Technology and Application, Vol. 6, Advances in Electrocatalyst, Materials, Diagnostics, and Durability, Ed. By W. Vielstich, H. Yokokawa and H. A. Gasteiger, John Wiley & Sons, 2009.
22 H. Yokokawa, H. Tu, B. Iwanschitz, and A. Mai, "Fundamental Mechanism Limiting Solid Oxide Fuel Cell Durability," J. Power Sources, 182 400-12(2008).   DOI   ScienceOn