A model for SOFC anode performance

A model for anode performance of a planar anode-supported SOFC is developed. The model includes Butler–Volmer relation for the hydrogen oxidation, Ohm’s law for ionic current and equation of hydrogen mass balance in the anode channel. We show that the regime of anode operation depends on the relation between the cell current density j   and the critical current density jcritjcrit. Analytical solutions to the system of governing equations for the case of “low” (j