Community Research and Development Information Service - CORDIS

The manufacturing of solid oxide fuel cell components

New manufacturing technologies have been developed for powders and components (electrodes, electrolytes, metallic bipolar plate) for upscaled, flat plate, solid oxide fuel cells (SOFC). With respect to powder manufacturing an upscaled, reproducible process for the cathode powder (lanthanum 0.85 strontium 0.15 manganese oxide) has been developed (ie spray drying of an aqueous solution of the required metal salts). For the anode powder, a suitable manufacturing method has been developed (nickel oxide slurry coating on a solid zirconia fraction), which needs to be further optimized. For the ceramic cell components, upscaled cells have successfully been manufactured with tape casting, using the above electrode powders and an 8 mol% yttrium oxide stabilized zirconia electrolyte. For the metal separator plate, upscaled components have been manufactured from a new alloy (CrFe5(Y2O3)1), of which the thermal expansion coefficient matches with the ceramics. Also new, cost effective manufacturing techniques for this alloy have been developed (electrochemical machining) and demonstrated for upscaled plates. A combination of the ceramic components with the metal separator plate was demonstrated in several 100 W class stacks.

Applications might include an integrated SOFC reactor for decentralized heat and power generation. For upscaled production, technology transfer to a small or medium sized enterprise (SME) is required.

Reported by

Netherlands Energy Research Foundation
Westerduinweg 3
1755 Petten
Netherlands
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