Rapid thermal cycling of metal-supported solid oxide fuel cellmembranes

Journal Article · Fri Jan 02 00:00:00 EST 2004 · Solid State Ionics

OSTI ID:882119

Matus, Yuriy B; De Jonghe, Lutgard C; Jacobson, Craig P; Visco, Steven J

Solid oxide fuel cell (SOFC) membranes were developed inwhich zirconia-based electrolyte thin films were supported by a compositemetal/ceramic electrode, and were subjected to rapid thermal cyclingbetween 200 and 800 0C. The effects of this cycling on membraneperformance were evaluated. The membranes, not yet optimized forperformance, showed a peak power density of 350mW/cm2at 900 0C inlaboratory-sized SOFCs that was not affected by the thermal cycling. Thisresistance to cycling degradation is attributed to the close matching ofthermal expansion coefficient of the cermet support electrode with thatof the zirconia electrolyte.

• Research Organization: Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
• Sponsoring Organization: USDOE. Assistant Secretary for Fossil Energy
• DOE Contract Number: DE-AC02-05CH11231
• OSTI ID: 882119
• Report Number(s): LBNL-54302; R&D Project: 500601; BnR: AA2530000
• Journal Information: Solid State Ionics, Vol. 176, Issue 5-6; Related Information: Journal Publication Date: 02/14/2005
• Country of Publication: United States
• Language: English

Related Subjects

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film SOFC metal support electrodes thermal cycling fastresponse