${\mathsf{\eta }}_{\mathrm{m}}$ is the activated overpotential	V
${\mathsf{\varphi }}_{\mathrm{s}}$ is the electrode potential	V
${\mathsf{\varphi }}_{\mathrm{l}}$ is the potential of the electrolyte	V
${\mathrm{E}}_{\mathrm{e}\mathrm{q},\mathrm{m}}$ is the equilibrium potential of the reaction	V