The Young-Lippmann equation predicts a constant decrease of the contact angle as voltage increases until the surface is completely wet, and a symmetric response relative to the neutral surface for positive and negative voltages . Experiments performed with different dielectric layers show however that the value of the contact angle quickly saturates as the voltage increases and the liquid never fully spreads. This mismatch between theoretical predictions and experimental observations has been explained in various ways including the need to account for the electric field distribution at the triple contact line (e.g. solid/liquid/air) and for the balance between the binding force among the liquid molecules and the drop spreading in reducing the free energy of the system . Molecular simulations have been used in an attempt to explain the reasons behind the inability of the Young-Lippmann equation to predict the saturation effect. At present there are two major hypotheses: one is the electromechanical explanation which suggests that the application of high voltages leads to the electric force at the drop's edge exceeding the molecular binding force resulting in molecules being pulled from the drop and to saturation. Another hypothesis is purely thermodynamic and suggests that the main contributor to the reduction of the contact angle is a reduction in the solid-liquid interfacial tension that happens upon charging the surface. As the EDL layer spontaneously builds up at the liquid-solid interface, charges of opposite polarity are repelled from the interface thus leading to a decrease in the and consequently a reduced equilibrium contact angle, making the surface more hydrophilic . Rewriting equation 1 in terms of surface tension, the Young-Lippmann equation becomes 28 :