Fabrication of an Intermediate-Temperature Anode-Supported Planar SOFC Via Tape Casting and Lamination


Article Preview

Many physical and chemical problems in solid oxide fuel cells (SOFC) are induced by the operating temperature of approximately 800 ~ 1000°C. The focus of the research in SOFC’s is, thus, on running the systems at the intermediate operating temperature range below 800 °C. A way to achieve this includes changing the electrolyte material in order to get a good ionic conductivity in the intermediate temperature range below 800 °C. In this work, gadolinium doped ceria is selected as the electrolyte, which was mixed with NiO for the anode material, and tape cast and laminated to produce a novel graded IT-SOFC . The cross-section of the SOFC cell was observed using Scanning Electron Microscope (SEM) showing a dense electrolyte layer. The operating temperature to test the cell was 500 and 550 °C. The electrochemical properties of the cell were measured using impedance spectroscopy. The ASR of unit cells was found to be between 2.67 and 4.62 Ω∙cm2. The electrochemical performance is discussed under the effect of porosity gradients at 500 and 550 °C.



Edited by:





C. M. An et al., "Fabrication of an Intermediate-Temperature Anode-Supported Planar SOFC Via Tape Casting and Lamination", Advances in Science and Technology, Vol. 72, pp. 237-242, 2010

Online since:

October 2010




[1] H. Moon, S. D. Kim, S. H. Hyun, H. S. Kim, Development of IT-SOFC unit cells with anode-supported thin electrolytes via tape casting and co-firing, International journal of hydrogen energy 33, 1758-1768 (2008).

DOI: https://doi.org/10.1016/j.ijhydene.2007.12.062

[2] A. Sanson, P. Pinasco, E. Roncari, Influence of pore formers on slurry composition and microstructure of tape cast supporting anodes for SOFCs, Journal of the European Ceramic Society 28 1221-1226 (2008).

DOI: https://doi.org/10.1016/j.jeurceramsoc.2007.10.001

[3] M. Yano, A. Tomita, M. Sano and T. Hibino, Recent advances in single-chamber solid oxide fuel cells: A review, Solid State Ionics, 177 3351-3359 (2007).

DOI: https://doi.org/10.1016/j.ssi.2006.10.014

[4] Lashtabeg and S.J. Skinner, Solid oxide fuel cells-a challenge for materials chemists?, Journal of Materials Chemistry, DOI: 10. 1039/b603620a (2006).

[5] L.W. Tai, M.M. Nasrallah, H.U. Anderson, D.M. Sparlin and S.R. Sehlin, Structure and electrical properties of LSCF Part1. The system LSCF, Solid State Ionics 76 259-271 (1995).

[6] L.W. Tai, M.M. Nasrallah, H.U. Anderson, D.M. Sparlin and S.R. Sehlin, Structure and electrical properties of LSCF Part2. The system LSCF, Solid State Ionics 76 273-283 (1995).

[7] S.C. Singhal and K. Kendall, High Temperature Solid Oxide Fuel Cells Fundamentals, Design and Applications, 2003 Elsevier Ltd.

[8] D. Simwonis, H. Thulen, F.J. Dias, A. Naoumidis, D. Stover, Properties of Ni/YSZ porous cermets for SOFC anode substrates prepared by tape casting and coat-mix process, 'Journal of Materials Processing Technology, 92-93, 107-111 (1999).

DOI: https://doi.org/10.1016/s0924-0136(99)00214-9

[9] C. An, J. Song, I. Kang and N. Sammes, The effect of porosity gradient in a Nickel/Yttria Stabilized Zirconia anode for an anode-supported planar solid oxide fuel cell, Journal of Power Sources 195 821-824 (2010).

DOI: https://doi.org/10.1016/j.jpowsour.2009.08.043

[10] B.C.H. steele, Appraisal of CGO electrolytes for IT-SOFC operation at 500 °C, Solid State Ionics 129 95-110 (2000).

DOI: https://doi.org/10.1016/s0167-2738(99)00319-7

[11] S. Abhijit S. Joshi, Kyle N. Grew, Aldo A. Peracchio and Wilson K.S. Chiu, Lattice Boltzmann modeling of 2D gas transport in a solid oxide fuel Cell anode, Journal of Power Sources 164 631-638, 2007.H. Chan, K.A. Khor, and Z.T. Xia, A complete polarization model of a solid oxide fuel cell and its sensitivity to the change of cell component thickness, Journal of Power Sources 93 130-140 (2001).

DOI: https://doi.org/10.1016/j.jpowsour.2006.10.101