• Safa Koç
  • Bora Timurkutluk
  • Selahattin Çelik
Keywords: Anode supported SOFC, mechanical strength, warpage


Fuel cells are the devices that convert chemical energy of a fuel directly into electrical energy by electrochemical methods without any intermediate mechanical steps. Among the existing fuel cells technologies, Solid Oxide Fuel Cell (SOFC) have been attracting great interest because of the advantages including high energy conversion efficiency, different fuel options, clean and quiet operation. The most important feature that distinguishes SOFC from other fuel cell and place it in a different category is the high operating temperatures (600-1000 °C). In addition, they do not depend on the limitation of the Carnot cycle thus their efficiency is higher than those of the internal combustion engines.

 In this study, the problems of warpage and cracking which occur during the fabricating of an industrial size anode supported solid oxide fuel cell (SOFC) have been experimentally investigated and the fabrication parameters which enable to obtain anode supported SOFC with high strength has been determined. In the experimental study, the effects of composition, the powder size and the thickness of both anode support and anode functional layers on the shrinkage rate and warpage behavior have been studied. The shrinkage rates of these two layers have been modified such that they are close to that of a thin electrolyte layer via dilatometry tests and as a result the mechanical strength is improved by reducing the warpage behavior during sintering. The cells having 100 cm2 with the optimized fabrication parameters are manufactured and tested.


[1] Patil, S.A., Dubois, G.T., Sifer, N., Bostic, E., Gardner, K., Quah, M., Bolton, C., (2004) “Portable Fuel Cell Systems For America’s Army: Technology Transition to the Field” Journal of Power Sources, 136-2, 220-225.
[2] Vassen, R., Steinbrech, W., Tietz, F., Stöver, D., (1998) “Modelling of Stresses and Bending Behaviour During Co-Firing of Anode-Electrolyte Componentes,” in Proceedings of the 3rd European Solid Oxide Fuel Cell Forum, pp.557
[3] Song, H.J., Park, I.S., Lee, H.Y., Kim, S.H., (2007) “Fabrication characteristics of an anode-supported thin-film electrolyte fabricated by the tape casting method for IT-SOFC” Journal of Materials Processing Technology, 198, 414–418.
[4] Letilly, M., Joubert, O., Caldes, T.M., Le Gal Le Salle, A., (2011) “Tape casting fabrication, co-sintering and optimisation of anode/electrolyte assemblies for SOFC based on BIT07-Ni/BIT07” İnternational Journal of Hydrogen Energy, 37, 4346-4355.
[5] Wang, S., Zhang, L., Yang, Z., Zhang, L., Fang, S., Brinkman, K., (2012) “Two-step co-sintering method to fabricate anode-supported Ba3Ca1.18Nb1.82O9_d proton-conducting solid oxide fuel cells” Journal of Power Sources, 215, 221-226.
[6] Song, H.J., Sammes, M.N., Park, S., Boo, S., Kim, S.H., Moon, H., Hyun, H.S., (2008) “Fabrication and Characterization of Anode-Supported Planar Solid Oxide Fuel Cell Manufactured by a Tape Casting Process” Journal of Fuel Cell Science and Technology, 5, 021003-1-021003-5.
[7] Teocoli, F., Ni, W.D., Brodersen, K., Foghmoes, V.P.S., Ramousse, S., Esposito, V., (2014) “Effects of co-sintering in self-standing CGO/YSZ and CGO/ScYSZ dense bi-layers” Journal of Material Science, 49, 5324-5333.
[8] Orui, H., Nozawa, K., Watanabe, K., Sugita, S., Chiba, R., Komatsu, T., Arai, H., Arakawa, M., (2008) “Development of Practical Size Anode-Supported Solid Oxide Fuel Cells with Multilayer Anode Structures” Journal of The Electrochemical Society, 155, (11), B1110-B1116.
[9] Yoon, J.K., Ye, G., Pal, B.U., (2010) “Cost-Effective Single Step Cofiring Process for Manufacturing Solid Oxide Fuel Cells Using HSC™ Anode” Journal of Fuel Cell Science and Technology, 7, 021010-1- 021010-5.
[10] Jiangrong, K., Kening, S., Derui, Z., Jinshuo, Q., Jigang, L., (2006) “Anode-Supported IT-SOFC Anode Prepared by Tape Casting Technique” IEEE The 1st International Forum on Strategic Technology, pp.186 – 189
[11] Bao, W., Chang, Q., Meng, G., (2005) “Effect of NiO/YSZ Compositions on the Co-Sintering Process of Anode-Supported Fuel Cell” Journal of Membrane Science, 259, 103–109.
[12] Ding, J., Liu, J., (2008) “Fabrication and Electrochemical Performance of Anode-Supported Solid Oxide Fuel Cells by a Single-Step Cosintering Process” Journal of American Ceramic Society, 91, 3303–3307.
[13] Le, S., Sun, N.K., Zhang, N., Zhu, X., Sun, H., Yuan, X.Y., Zhou, X., (2010) “Fabrication and Evaluation of Anode and Thin Y2O3-Stabilized ZrO2 Film by Co-Tape Casting and Co-Firing Technique” Journal of Power Sources, 195, 2644-2648.
[14] Haanappel, C.A.V., Mertens, J., Rutenbeck, D., Tropartz, C., Herzhof, W., Tietz, F., (2005) “Optimisation of Processing and Microstructural Parameters of LSM Cathodes to İmprove the Electrochemical Performance of Anode-Supported SOFCs” Journal of Power Sources, 141, 216-226.
How to Cite
S. Koç, B. Timurkutluk, and S. Çelik, “DEVELOPMENT OF ANODE SUPPORTED SOLID OXIDE FUEL CELL WITH IMPROVED WARPAGE BEHAVIOR”, JAST, vol. 7, no. 2, pp. 45-53, Jul. 2014.