Cinit 500[mol/(m^3)] Initial concentration T0 298[K] System temperature i0 150[A/m^2] Exchange current density Eeq_rel 0[V] Relative equilibrium potential phis_anode 0.135[V] Anode potential phis_cathode -0.135[V] Cathode potential alpha_c 0.5[1] Symmetry factor alpha_a 1.5[1] Symmetry factor z_net 2[1] Net species charge z_c1 z_net[1] Charge, species c1 z_c2 -z_net[1] Charge, species c2 D_c1 2e-9[m^2/s] Diffusivity, species c1 D_c2 D_c1 Diffusivity, species c2