A Flexible Solid Oxide Fuel Cell Supported on a Thin Porous Metal

Metal-supported SOFCs are very attractive due to their high mechanical strength, thermal conductivity, and low material cost. These properties make SOFCs suitable for mobile application as well as the traditional stationary application. Contrary to many researches, using the thin-metal support will be more suitable for potable application because it provides the cell with flexibility, light weight, and good stacking property. In this study, thin metal-supported SOFC (similar to 100 mu m) was fabricated using tape casting method. Three tapes were laminated and co-fired at 1300 degrees C in reducing atmosphere. Thin and strong metal-supported SOFC was successfully fabricated by co-firing process. Total thickness of the sintered cell was similar to 80 mu m. This thin cell showed flexible nature and was easily bent without visible cracks on the electrolyte. The Cr-poisoning of Ni in the anode occurred during sintering at high temperature, which could lower the cell performance.