Fig. 3: KFSI and LiFSI in DME concentration-dependent transference number and ionic conductivity.

Transference numbers and ionic conductivities of KFSI and LiFSI in DME at 20 °C. a Cation transference number \({t}_{\!+}^{0}\) measured by Hittorf experiments. Error bars for \({t}_{\!+}^{0}\) depict error in the mean (Supplementary Note 1). Fits described in Supplementary Note 9. b Ionic conductivity κ measured with a conductivity cell, fit with the Casteel-Amis equation (Supplementary Eq. (6)).