Performance Characteristics of Solid Oxide Fuel Cells with YSZ/CGO Electrolyte

Abstract:

This paper presents the results of performance evaluation of anode-supported solid oxide fuel cells (SOFC) with magnetron sputtered YSZ/CGO bilayer electrolyte, and composite LSCF-CGO cathode. Deposition of the YSZ/CGO electrolyte with the thickness of up to 14 microns was performed on the commercial anode substrates with dimensions of 5×5 cm². The LSCF-CGO cathode of the fuel cells was formed by the screen-printing method. The microstructure of the YSZ/CGO bilayer electrolyte and LSCF-CGO cathode was studied by scanning electron microscopy. Comparison of the fuel cells performance with different thicknesses of the YSZ and CGO layers was carried out by measuring current-voltage and power characteristics, and also by testing the long-term stability of cell power at the temperature of 750 °C and voltage of 0.7 V.

• Periodical: Key Engineering Materials (Volume 743)
• Pages: 281-286
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.743.281
• Online since: July 2017
• Authors: Anastasya N. Kovalchuk, Alexey M. Lebedinskiy, Andrey A. Solovyev, Igor V. Ionov, Egor A. Smolyanskiy, Anna V. Shipilova, Alexander L. Lauk, Maiya R. Rombaeva*
• Keywords: Hydrogen Energy, LSCF Cathode, Magnetron Sputtering, NiO-YSZ Anode, Solid Oxide Fuel Cell (SOFC), Thin Films, YSZ/CGO Bilayer Electrolyte

References

[1] Williams M. C. Status and Promise of Fuel Cell Technology/ Fuel Cells, 2001, V. 1(2), pp.87-91.

[2] Petric A., Huang P., Tietz F. Evaluation of La-Sr-Co-Fe-O Perovskites for Solid Oxide Fuel Cells and Gas Separation Membranes/ Solid State Ion., 2005, V. 135 (1-4), pp.719-725.

DOI: 10.1016/s0167-2738(00)00394-5

[3] Constantin G., Rossignol C., Briois P., Billard A., Dessemond L., Djurado E. Efficiency of a dense thin CGO buffer layer for solid oxide fuel celloperating at intermediate temperature/ Solid State Ionics, 2013, V. 249–250, pp.98-104.

DOI: 10.1016/j.ssi.2013.07.004

[4] Sonderby S., Klemenso T., Christensen B. H., Almtoft K. P., Lu J., Nielsen L. P., EklundP. Magnetron sputtered Gadolinia-doped Ceria Diffusion Barriers for Metal-supported Solid Oxide Fuel Cells/ J. of Power Sources, 2014, V. 267, pp.452-458.

DOI: 10.1016/j.jpowsour.2014.05.101

[5] Brahim C., Ringuede A., Gourba E., Cassir M., Billard A., Briois P. Electrical properties of thin bilayered YSZ/GDC SOFC electrolyte elaborated by sputtering/ Journal of Power Sources, 2006, V. 156, pp.45-49.

DOI: 10.1016/j.jpowsour.2005.08.017

[6] Solovyev A.A., Rabotkin S.V., Shipilova A.V., Kirdyashkin A.I., Ionov I.V., Kovalchuk A.N., Maznoy A.S., Kitler V.D., Borduleva A.O. Application of PVD methods to solid oxide fuel cells/ Applied Surface Science, 2014, V. 310, pp.272-277.

DOI: 10.1016/j.apsusc.2014.03.163

[7] Solovyev A. A., Rabotkin S. V., Shipilova A. V., Kirdyashkin A. I., Ionov I. V., Kovalchuk A. N., Maznoy A. S., Kitler V. D., Borduleva A. O. Solid oxide fuel cell with Ni–Al support/ Int. J. Hydrogen Energy, 2015, V. 40, pp.14077-14084.

DOI: 10.1016/j.ijhydene.2015.07.151

[8] Sochugov N.S., Soloviev A.A., Shipilova A.V., Rabotkin S.V., Rotshtein V.P., Sigfusson I.T. The effect of pulsed electron beam pretreatment of magnetron sputtered ZrO2: Y2O3 films on the performance of IT-SOFC/ Solid State Ionics, 2013, V. 231, pp.11-17.

DOI: 10.1016/j.ssi.2012.11.001

[9] Choi H., Cho G.Y., Cha S.W. Fabrication and Characterization of Anode Supported YSZ/GDC Bilayer Electrolyte SOFC using Dry Press Process/ International Journal of Precision Engineering and Manufacturing - Green Technology, 2014, V. 1, pp.95-99.

DOI: 10.1007/s40684-014-0013-4