J0601-2-1 コストダウンに資する溶融炭酸塩形燃料電池への分割電極の適用(燃料電池システムおよび熱・物質移動)

概要

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Although molten carbonate fuel cells (MCFCs) have entered the commercialization phase and have a high potential and an enough operating experience as an energy supply system, they are not explosively widespread. One of these reasons is cost of cell components. Because the thickness of both electrodes is 0.8mm and both electrodes are made of porous plates of 1m^2 of the electrode area, they are often broken by a thermal stress in the sintering process of an electrode and by a worker's carelessness at the cell assembly process. Although the performance of a cell that uses a mosaic electrode has been evaluated, the causal relation between the cracking of an electrode and an electrolyte-leakage has not been yet confirmed. Therefore, we studied the causal relation between the segmented electrode and electrolyte leakage and gas crossover using a visualization technique. As a result, in either case of an anode electrode and cathode electrode, the electrolyte leakage from the division part of electrode-electrode could not be observed by the visualization technique. Therefore, electrolyte leakage hardly occurs, even if a segmented electrode is installed into the centre section of the cell.
社団法人日本機械学会の論文
2009-09-12