Numerical Solution and Impedance

The whole problem is solved in the following way. At z = 0, the perturbation of oxygen concentration in the channel is set to zero and the local x problem is solved 

The local impedance is calculated according to Equation 5.93. Since the cell electrode is equipotential, the local perturbations of current density are summing up and the total cell impedance Zceii is given by 

Equation 5.173 means that the individual segments are parallel impedances. 

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