Abstract:In the paper a mathematical model of the PEN structure (positive electrode -electrolyte -negative electrode) of the Solid Oxide Fuel Cell (SOFC) is analyzed. It is proved that classical formulation of the problem leads inevitably to locally unphysical effects related to negative values of the activation overpotential. Moreover, the active layers' thicknesses are shown to be components of solution and cannot be predefined in an arbitrary way. A modified mathematical formulation of the problem is proposed which … Show more
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