Ion-transport models for concentrated binary electrolyte solutions depend on the ionic conductivity, ionic diffusivity, and the transference number. The thermodynamic factor (TDF) is also required to describe the thermodynamic behaviour of the electrolyte system, this parameter is dependent on the mean molar activity coefficient. To be consistent with the electrochemical parameterization of this cell it is assumed the electrolyte was 1 mol dm LiPF6 in EC:EMC (3:7, v:v). This was assumed to the difficulty determining the electrolyte composition.