To study the impact of different LiCl concentrations and electrode surface charge densities on electrowetting, we created models with three fixed surface charge densities: (i) a neutral ( 0 = 0.000 C m -2 ) case, (ii) a negatively and (iii) a positively charged ( -= -0.071 C m -2 and + = +0.071 C m -2 ) case. The choice of the surface charge was based on our previous work that showed that such values guarantee the resulting electrostatic potential to be within the limits of stability set by the reduction/oxidation of water . The ionic concentrations in these models range from 0 M to 4 M. Periodic boundary conditions are applied for all models.