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Development of anode-supported planar SOFC using inexpensive and simple processing technique
R.N. Basu, A. Das Sharma, , J. Mukhopadhyay, H.S. Maiti
Published in
2007
Volume: 7
   
Issue: 1 PART 1
Pages: 227 - 234
Abstract
In the anode-supported planar SOFC, conventionally the porous anode support is fabricated first, over which a thin layer of electrolyte (5-50 μm) is developed to form the half-cell Additionally, functional layers in the anode side (AFL) and cathode side (CFL) are used. The present contribution reports use of inexpensive and simple processing techniques to fabricate anode-supported planar SOFC where no AFL is used. The process involves room temperature lamination of several layers of tapecast NiO-YSZ together with a top layer of YSZ followed by co-firing. The half cells thus fabricated, having thin electrolyte (∼ 20μm), are screen-printed with La(Sr)MnO3 (LSM)-YSZ CFL and LSM cathode layer. Single cells of dimensions up to 10 cm × 10 cm × 1.5 mm have been fabricated. Coupon cells show current density between 1.0 and 1.5 A/cm2 at 800°C and 0.7V. The electrochemical performances of these cells are size independent and show excellent repeatability. © The Electrochemical Society.
About the journal
JournalECS Transactions
ISSN19385862