Micro-solid oxide fuel cell supported on a porous metallic Ni/stainless-steel bi-layer

Metallic bi-layer of porous Ni and porous stainless steel (STS) is utilized as a support for micro-solid oxide fuel cells (SOFCs) using a thin-film layer of electrolyte. Tape-casting and screen-printing processes are employed to fabricate a thick ( similar to 250 mu m) STS-layer covered with a thin...

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Bibliographic Details
Published in:Journal of power sources 2014-03, Vol.249, p.79-83
Main Authors: Lee, Younki, Park, Young Min, Choi, Gyeong Man
Format: Article
Language:English
Subjects:
Applied sciences
Direct energy conversion and energy accumulation
Electrical engineering. Electrical power engineering
Electrical power engineering
Electrochemical conversion: primary and secondary batteries, fuel cells
Energy
Energy. Thermal use of fuels
Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc
Exact sciences and technology
Fuel cells
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Summary:Metallic bi-layer of porous Ni and porous stainless steel (STS) is utilized as a support for micro-solid oxide fuel cells (SOFCs) using a thin-film layer of electrolyte. Tape-casting and screen-printing processes are employed to fabricate a thick ( similar to 250 mu m) STS-layer covered with a thin ( similar to 20 mu m) nano-porous Ni layer. Successful deposition of a nearly pore-free electrolyte layer by the pulsed laser deposition (PLD) method is demonstrated by the high open-circuit-voltage (OCV) value of a single cell. The Ohmic resistance of the micro-SOFC deposited on a porous Ni/STS-support is stable and it shows similar to 28 mW cm-2 after operation for similar to 112 h at 450 degree C. The use of a porous Ni/STS bi-layer as a support for micro-SOFCs is successfully demonstrated.
ISSN:0378-7753
1873-2755
DOI:10.1016/j.jpowsour.2013.10.082