Influence of the Number of Dimensions in the Impedance Spectroscopy Simulation of a YSZ Electrolyte

The use of computer simulation to predict the behavior devices and materials allows for acceleration system operation reduces costs, as it eliminates need build prototypes testing. This work proposes construction 3 models with different complexities simulate electrical a solid electrolyte fuel cell. Experimental data were compared data. experimental obtained from production YSZ by tape casting, sintered at 1550 °C. material was characterized using impedance spectroscopy in atmospheric air. From data, conducted commercial code (COMSOL Multiphysics v.5.4). model developed 1D, 2D axisymmetric 3D dimensions an cylindrical planar SOFC. Nyquist Impedance graphics plotted three geometries comparison value. No variation observed between curves same interface. In other words, interface complexity did not interfere result We concluded that 1D is ideal influence operational parameters because simpler saves analysis time, maintaining reliability accuracy results.