| Budget Amount *help |
¥16,770,000 (Direct Cost: ¥12,900,000、Indirect Cost: ¥3,870,000)
Fiscal Year 2017: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2016: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2015: ¥8,580,000 (Direct Cost: ¥6,600,000、Indirect Cost: ¥1,980,000)
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| Outline of Final Research Achievements |
Recent SOFCs often utilize thin electrolytes of the order of a few microns. Its scale is approaching to the microstructure scale of porous electrodes. It means a change of the potential field in an electrode may affect the poential field in the thin electrolyte and the other electrode. In the first half of this study, we numerically investigated the interaction between a thin electrolyte and porous electrodes to find a non-uniform distribution of current density in the thin electrolyte. It also shows that the electrochemical reaction is most active near the interface. On the basis of this simulation results, the effects of the shape modification of thin electrolyte are investigated in the second half. It is found that the average current density of cells with shape-modification can be enhanced as a result of combined effects of the decrease of activation overpotential and ohmic loss.
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