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Eneramic power generator - a reliable and cycleable 100W SOFC-system

: Reuber, Sebastian; Pönicke, Andreas; Wunderlich, Christian; Michaelis, Alexander


Kawada, T. ; Electrochemical Society -ECS-:
13th International Symposium on Solid Oxide Fuel Cells, SOFC 2013 : 6.-11. October 2013, Okinawa, Japan
Pennington, NJ: ECS, 2013 (ECS transactions 57.2013,Nr.1)
ISBN: 978-1-60768-459-6 (CD-ROM)
ISBN: 978-1-62332-104-8 (Softcover)
ISBN: 978-1-60768-458-9 (PDF)
International Symposium on Solid Oxide Fuel Cells (SOFC) <13, 2013, Okinawa/Japan>
Conference Paper
Fraunhofer IKTS ()

Off-grid power generation is considered as an attractive market for fuel cells. For this purpose, a compact SOFC battery hybrid system was developed that operates on commercially available fuels. Due to its progressive thermal packaging, the mobile prototype achieves a net efficiency of 22 % with commercial BoP components. It was possible to reduce the cold start time of the system by direct cathode preheating with burner off-gas. Thus, the system is designed for frequent start-up and cycling capability. In consequence the planar SOFC stack was tested with rapid heating rates up to 20 K/min in furnace and hotbox environment. The degradation caused by system cycling is less than 0.1 % per cycle. Finally, the optimization of stack temperature conditions has improved the lifetime of the SOFC stack significantly.