Development of Long-Term Stable and High-Performing Metal-Supported SOFCs

Trine Klemensø, Jimmi Nielsen, Peter Blennow Tullmar, Åsa Helen Persson, Tobias Stegk, Per Hjalmarsson, Bjarke Christensen, Steffen Sønderby, Johan Hjelm, Severine Ramousse

    Research output: Contribution to journalConference articleResearchpeer-review

    Abstract

    Metal-supported SOFCs are believed to have high potential for commercialization due to lower material costs and higher robustness in fabrication and operation. However, the development of the cell is challenged by the metal properties during fabrication, and the necessary lower operating temperatures, while retaining both the energy output and the stability. The metal-supported SOFC design developed at Risø DTU has been optimized to an ASR value of 0.62 cm2 at 650 °C, and a steady degradation rate of 1.0% kh-1 demonstrated for 3000 h on a 16 cm2 active cell level. Additional improvement in the performance has been demonstrated possible with cobalt-based cathode materials in combination with a magnetron sputtered CGO cathode barrier layer. Initial ASR values down to 0.27 cm2 at 650 °C and power densities up to 1.14 Wcm-2 was observed with this design on a 0.5 cm2 active cell level. ©2011 COPYRIGHT ECS - The Electrochemical Society
    Original languageEnglish
    JournalE C S Transactions
    Volume35
    Issue number1
    Pages (from-to)369-378
    ISSN1938-5862
    DOIs
    Publication statusPublished - 2011
    Event12th International Symposium on Solid Oxide Fuel Cells, 219th ECS Meeting - Montreal Convention Center, Montreal, QC, Canada
    Duration: 1 May 20116 May 2011

    Conference

    Conference12th International Symposium on Solid Oxide Fuel Cells, 219th ECS Meeting
    LocationMontreal Convention Center
    CountryCanada
    CityMontreal, QC
    Period01/05/201106/05/2011

    Keywords

    • Solid oxide Fuel Cells

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