As a consequence the increase of the conductivity with EC content should become weaker as well. Furthermore, above 40% EC content the contributions of negative distinct correlations for like ions are of similar importance. In the next step the transport and transference numbers t c and t + are calculated from the diffusivity, Eq. 10, and the ionic conductivity, Eq. 6, respectively. These results from polarizable simulations are shown in Fig. together with experimental data for transference number t + . The very good agreement shows that not only the total ionic conductivity but also the individual contributions σ + and σ -are in agreement with the experiment. t c from the diffusivity is higher and has almost no dependence on salt concentration. This was already obvious from the results, shown in Fig. When increasing the salt concentration to 1 M it drops to less than 0.3. To rationalize both effects we perform a linear expansion of the transference number in terms of the distinct conductivity terms, yielding