Abstract
Single cell and short stacks supported with electrolyte were prepared and operated under single chamber solid oxide fuel cell (SC-SOFC) condition. The single cell was tested to investigate the ratio of fuel and oxygen in the mixture working gas as well as the operating temperature. Then single electrolyte pellet-supported SC-SOFC stacks with 2 or 3 cells were fabricated and tested. A 2-cell stack could provide an the open circuit voltages (OCV) of 1.66V that was lower than the OCV sum of near 2V for two standing alone SC-SOFC for some addition cells might composed between each possible pair of anode and cathode on the same bulk electrolyte and depressed the OCV of stack. The OCVs of a 3-cell stack were 2.758V and 2.501V, and the maximum power (MP) were 20.76mW and 16.02mW, at 700 oC and 750 oC respectively.
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