Electronic Conducting Phase Theory

The Electronic Conducting Phase node solves for the electric potential

(V) as dependent variable.

The current density in the phase, is (A/m2), is defined as (Ref. 1)

(3-1)

where σs, eff is the effective electric conductivity (S/m).

The charge balance equation in the phase is defined as

(3-2)

where iv,tot (A/m3) is the sum of a volumetric current density contributions of the electrode reactions occurring in the Gas Diffusion Electrode domains.

For Current Collector and Gas Diffusion Layer domains,