The anode-supported planar solid oxide fuel cell (SOFC) was fabricated by a cost-effective single step cofiring process using high shear compaction (HSC)™ anode substrate. The HSC™ process is a novel ceramic tape fabrication technique, which offers advantages in low-cost and high-volume production of the anode substrates over the conventional tape forming processes. The cell was comprised of a porous HSC™ yttria-stabilized zirconia (YSZ) anode substrate, a porous anode barrier layer, a porous and fine-grained anode active layer, a dense YSZ electrolyte, a porous and fine-grained Ca-doped composite cathode active layer, and a porous LCM cathode current collector layer. The fabrication process involved wet powder spraying of the anode barrier layer over the HSC™ anode substrate followed by screen-printing of the remaining component layers. The cell was then cofired at for 2 h. The microstructure and the open circuit voltage of the cell confirmed that the cell was crack-free and leak-tight. The cofired cell showed a stable and acceptable electrochemical performance at under humidified hydrogen as fuel and air as oxidant. The anode active layer with finer and less porous microstructure increased the triple phase boundary length and improved cell performance under conditions that simulated higher fuel utilization. The material system and fabrication process presented in this work offers great advantage in low-cost and high-volume production of SOFCs, and it can be the basis for scale-up and successful commercialization of the SOFC technology.
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April 2010
This article was originally published in
Journal of Fuel Cell Science and Technology
Research Papers
Cost-Effective Single Step Cofiring Process for Manufacturing Solid Oxide Fuel Cells Using HSC™ Anode
Kyung Joong Yoon,
Kyung Joong Yoon
Department of Manufacturing Engineering,
Boston University
, 15 Saint Mary’s Street, Brookline, MA 02446
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Guosheng Ye,
Guosheng Ye
BTU International, Inc.
, 23 Esquire Road, North Billerica, MA 01862
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Srikanth Gopalan,
Srikanth Gopalan
Department of Manufacturing Engineering,
Boston University
, 15 Saint Mary’s Street, Brookline, MA 02446
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Uday B. Pal
Uday B. Pal
Department of Manufacturing Engineering,
Boston University
, 15 Saint Mary’s Street, Brookline, MA 02446
Search for other works by this author on:
Kyung Joong Yoon
Department of Manufacturing Engineering,
Boston University
, 15 Saint Mary’s Street, Brookline, MA 02446
Guosheng Ye
BTU International, Inc.
, 23 Esquire Road, North Billerica, MA 01862
Srikanth Gopalan
Department of Manufacturing Engineering,
Boston University
, 15 Saint Mary’s Street, Brookline, MA 02446
Uday B. Pal
Department of Manufacturing Engineering,
Boston University
, 15 Saint Mary’s Street, Brookline, MA 02446J. Fuel Cell Sci. Technol. Apr 2010, 7(2): 021010 (5 pages)
Published Online: January 11, 2010
Article history
Received:
March 31, 2008
Revised:
December 12, 2008
Online:
January 11, 2010
Published:
January 11, 2010
Citation
Yoon, K. J., Ye, G., Gopalan, S., and Pal, U. B. (January 11, 2010). "Cost-Effective Single Step Cofiring Process for Manufacturing Solid Oxide Fuel Cells Using HSC™ Anode." ASME. J. Fuel Cell Sci. Technol. April 2010; 7(2): 021010. https://doi.org/10.1115/1.3177449
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