Hostname: page-component-8448b6f56d-dnltx Total loading time: 0 Render date: 2024-04-24T11:57:17.148Z Has data issue: false hasContentIssue false
  • English
  • Français

Analysis of Electrochemical Performance of Single Step Co-fired Solid Oxide Fuel Cell (SOFC) Analyzed Using Polarization Model and Impedance Spectroscopy

Published online by Cambridge University Press:  01 February 2011

Kyung Joong Yoon ,
Srikanth Gopalan  and
Uday B. Pal
Kyung Joong Yoon
Affiliation:
kjyoon@bu.edu, Boston University, Mechanical Engineering, Boston, Massachusetts, United States
Srikanth Gopalan
Affiliation:
sgopalan@bu.edu, Boston University, Mechanical Engineering, Boston, Massachusetts, United States
Uday B. Pal
Affiliation:
upal@bu.edu, Boston University, Mechanical Engineering, Boston, Massachusetts, United States
Get access

Abstract

Anode-supported planar solid oxide fuel cell (SOFC) was successfully fabricated by a single step co-firing process. The cell comprised of a porous Ni + yittria-stabilized zirconia (YSZ) anode support, a porous and fine-grained Ni + YSZ anode active layer, a dense YSZ electrolyte, a fine-grained porous Ca-doped LaMnO3 (LCM) + YSZ composite cathode active layer, and a porous LCM cathode current collector layer. The cell was tested between 700˜800oC with humidified hydrogen (97% H2+3% H2O) as fuel and air as oxidant. The measured maximum power densities were 1.42W/cm2 at 800°C, 1.20W/cm2 at 750°C, and 0.87W/cm2 at 700°C. The cell was also tested at 800oC with various compositions of oxidant, and cell parameters including the area specific ohmic resistance, exchange current density, and anodic and cathodic limiting current densities were determined using the polarization model and impedance spectroscopy.

Keywords

energy generationionic conductorscreen printing
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1126: Symposium S – Solid-State Ionics–2008 , 2008 , 1126-S10-02
Copyright
Copyright © Materials Research Society 2009

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

[1]. Zhao, F. and Virkar, A. V., “Dependence of Polarization in Anode-Supported Solid Oxide Fuel Cells on Various Cell Parameters”, Journal of Power Sources, 141 (1), p. 79 (2005).Google Scholar
[2]. De Souza, S., Visco, S. J., and De Jonghe, L. C., “Thin-Film Solid Oxide Fuel Cell with High Performance at Low-Temperature”, Solid State Ionics, 98 (1–2), p. 57 (1997).Google Scholar
[3]. Kim, J.-W., Virkar, A. V., Fung, K.-Z., Mehta, K., and Singhal, S. C., “Polarization Effects in Intermediate Temperature, Anode-Supported Solid Oxide Fuel Cells”, Journal of The Electrochemical Society, 146 (1), p. 69 (1999).Google Scholar
[4]. Belko, W. C. and Ragan, R. C., Process for Producing Low Shrink Ceramic Bodies, U.S. Patent, Editor. 1998.Google Scholar
[5]. Ragan, R. C., Process for Producing Low Shrink Ceramic Composition, U.S. Patent, Editor. 1996.Google Scholar
[6]. Yoon, K. J., Huang, W., Ye, G., Gopalan, S., Pal, U. B., and Seccombe, D. A. Jr, “Electrochemical Performance of Solid Oxide Fuel Cells Manufactured by Single Step Co-Firing Process”, Journal of The Electrochemical Society, 154 (4), p. B389 (2007).Google Scholar
[7]. Yoon, K. J., Zink, P., Gopalan, S., and Pal, U. B., “Polarization Measurements on SingleStep Co-Fired Solid Oxide Fuel Cells (Sofcs)”, Journal of Power Sources, 172 (1), p. 39 (2007).Google Scholar
[8]. Yoon, K. J., Zink, P., Pal, U. B., Gopalan, S., and Seccombe, D. A. Jr, “High Performance Low Cost Co-Fired Solid Oxide Fuel Cells”, ECS Transactions, 7 (1), p. 579 (2007).Google Scholar
[9]. Zhu, H. and Kee, R. J., “A General Mathematical Model for Analyzing the Performance of Fuel-Cell Membrane-Electrode Assemblies”, Journal of Power Sources, 117 (1–2), p. 61 (2003).Google Scholar
[10]. Yoon, K. J., Gopalan, S., and Pal, U. B., “Effect of Anode Active Layer on Performance of Single-Step Cofired Solid Oxide Fuel Cells”, Journal of The Electrochemical Society, 155 (6), p. B610 (2008).Google Scholar
[11]. Li, P. W. and Chyu, M. K., “Electrochemical and Transport Phenomena in Solid Oxide Fuel Cells”, Journal of Heat Transfer, 127 (12), p. 1344 (2005).Google Scholar
[12]. Yoon, K. J., Gopalan, S., and Pal, U. B., “Effect of Fuel Composition on Performance of Single-Step Cofired Sofcs”, Journal of The Electrochemical Society, 154 (10), p. B1080 (2007).Google Scholar
[13]. Bird, R. B., Lightfoot, E. N., and Stewart, W. E., Transport Phenomena (2nd Edition), John Wiley & Sons, Inc., New York (2001).Google Scholar