Combined effects of Tafel kinetics and Ohmic potential drop on the nonlinear responses of electrochemical systems to low-frequency sinusoidal perturbation of electrode potential - New approach using the Lambert W-function

► Modelling the nonlinear behaviour of Tafelian systems in the presence of Ohmic drop. ► Combined effects of Tafel kinetics and Ohmic drop on the nonlinear polarization resistance. ► Validity condition for impedance measurements at low frequency. ► Application of the Lambert W-function to electrochemical systems.