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 high current density between 1.0 and 1.5A/cm2 at 8000C at 0.7V. The electrochemical performances of these cells are size independent and show excellent repeatability.
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