Theoretical model

• Ohm’s law

• charge balance

• Butler-Volmer

where

For the cathodic reaction without mass transport limitation

Assumption:

• steady state conditions;

• one-dimensional model as a function of the x co-ordinate;

• uniformity of T, P, reactant and product concentration;

• conducting phases continuous and homogeneous with resistivity independent of the x co-ordinate;

• electrode particles: spherical and with same diameter (ionic and electronic conductors) in a bimodal packing of spheres.

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