Paper Titles
Pulsed Laser Deposition of Sm0.2Ce0.8O1.9/Zr0.9Sc0.1O2 Bilayer Films for Fuel Cell Application
p.1344
Ni-Fe Bimetallic Anode for Intermediate Temperature Solid Oxide Fuel Cells Using LaGaO3 Based Oxide Electrolyte
p.1350
Solid - Phase Synthesis of Carbon Nanoparticles and their Application to Direct Methanol Fuel Cell
p.1356
Preparation of High Surface Area La0.1Ca0.9MnO3 and its Electrochemical Activities
p.1361
Processing and Properties of Advanced Solid Oxide Fuel Cells
p.1367
Synthesis and Sintering Behavior of Nano Crystalline Gd-Doped Ceria
p.1373
Development of Zirconium Based Non-Platinum Cathode for Polymer Electrolyte Fuel Cell
p.1379
Plasma Spray Processing of Solid Oxide Fuel Cells
p.1385
A Study on Co and Cu Oxides as Sintering Aids for Sm0.2Ce0.8O1.9 Electrolyte
p.1391

Processing and Properties of Advanced Solid Oxide Fuel Cells

Article Preview

Abstract:

Up to now, Solid Oxide Fuel Cell (SOFC) materials and processing does not meet the cost goals for commercialization. This resulted in a worldwide increase in R&D activities dealing with advanced materials and effective manufacturing methods. The present paper describes efforts to process novel SOFC materials as well as optimization of well known ones. The R&D trends are explained for key components such as anode, electrolyte, cathode, contact- and protective layers. Typical SOFC manufacturing methods include tape casting, extrusion, calendaring and axial pressing. Each of these techniques has advantages and limitations. Examples for the highly efficient use of these methods are given for electrolyte supported cells as well as anode and cathode supported designs. An evaluation in reference to automation, process complexity and costs is given under the present limiting factors. Exemplary the processing by tape casting and the micro structural fine tuning of an advanced anode-supported system is discussed in detail. To produce the layered components of an SOFC, techniques like screen printing, wet powder spraying, PVD and CVD are under development. While the layer properties are excellent, PVD and CVD are nowadays too expensive in some cases, due to the low deposition rates. If thin layers are required, these techniques become interesting under cost considerations. The effectiveness of a PVD interlayer between electrolyte and high power density cathodes is shown in comparison to a sintered layer. In thin electrolyte concepts, the cathode becomes the power limiting component at operating temperatures below around 750°C. Thus new cathode materials and adjusted processing parameters are under development. The possibilities to manufacture advanced cathode layers by screen printing, wet powder spraying and other wet chemical methods are discussed. As an example screen printing of LSCF is described which results in a high power density cathode layer for low temperature SOFC operation. Finally, future needs to achieve the technical and economic goals are summarized.

You might also be interested in these eBooks
THERMEC 2006 View Preview

Info:

Periodical:

Materials Science Forum (Volumes 539-543)

Pages:

1367-1372

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.539-543.1367

Citation:

Cite this paper

Online since:

March 2007

Authors:

Detlev Stöver, Hans Peter Buchkremer, Andreas Mai, Norbert H. Menzler, Mohsine Zahid

Keywords:

Coating, Electrochemistry, Shaping, Solid Oxide Fuel Cell (SOFC)

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

© 2007 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

References

[1] Vora S.D.: Development of high power density seal-less SOFCs. Presentation at the Fuel Cell Seminar, November 14-18 2005, Palm Springs, USA (2005).

Google Scholar

[2] Menzler N.H., Fleck R., Mertens J., Schichl H., Buchkremer H.P.: Application of wet chemical coating technologies fur tubular SOFCs. 5 th European SOFC Forum, July 1-5 2002, Lucerne, Switzerland (2002), 156-163.

Google Scholar

[3] Menzler N.H., Zahid M., Buchkremer H.P.: Technische Keramische Werkstoffe (DKG) 81. Ergänzungslieferung - Juni 2004 herausgegeben von Prof. Dr. Jochen Kriegesmann, Höhr-Grenzhausen. Art. -Nr. 33391081. Kapitel 3. 4. 6. 1 (2004).

Google Scholar

[4] Ruckdäschel R., Henne R., Schiller G., Greiner H.: in Proc. 5 th Int. Symp. Solid Oxide Fuel Cells (SOFC-V), p.1273, U. Stimming, S. C. Singhal, H. Tagawa, W. Lehnert (Eds. ), The Electrochemical Society, Pennington, NJ (1997).

Google Scholar

[5] Zahid M., Tietz F., Sebold D., Buchkremer H.P.: in Proc. 6 th European SOFC Forum, Vol. 2, p.820, M. Mogensen (Ed. ), European Fuel Cell Forum, Dr. U. Bossel, Oberrohrdorf, Schweiz (2004).

Google Scholar

[6] Zahid M., Arul Raj I., Tietz F., Lersch P., Stöver D.: Proc. 9 th Int. Symp. on Solid Oxide Fuel Cells (SOFC-IX), eds.: S. C. Singhal, J. Mizusaki, The Electrochemical Society, Pennington, NJ (2005), Vol. 2, 1708-1716.

Google Scholar

[7] Sahibzada, M., Steele, B.C.H., Zheng, K., Rudkin, R.A., Metcalfe, I.S., Catal. Today 38 (1997), 459-466.

Google Scholar

[8] Mai, A., Tietz, F., Stöver, D., Solid State Ionics 173 (2004), 35-40.

Google Scholar

[9] Mai, A., Haanappel, V.A.C., Tietz, F., Stöver, D., in : Proc. 9th Int. Symp. on Solid Oxide Fuel Cells (SOFC-IX), eds.: S. C. Singhal, J. Mizusaki, The Electrochemical Society, Pennington, NJ (2005), Vol. 2, pp.1627-1635.

Google Scholar

[10] Mai, A., Haanappel, V.A.C., Uhlenbruck, S., Tietz, F., Stöver, D., Solid State Ionics 176 (2005), 1341-1350.

DOI: 10.1016/j.ssi.2005.03.009

Google Scholar

[11] Mai, A., Haanappel, V.A.C., Tietz, F., Stöver, D., Solid State Ionics, in press.

Google Scholar

[12] Buchkremer, H.P., Blum, L., de Haart, L.G.J., Quadakkerssm W.J., Reisgen, U., Steinberger-Wilckens, R., Status of the SOFC development at the Reseach Center Juelich, these proceedings.

Google Scholar