In terms of application to the modelling, the incorporation of state of charge or stoichiometry and temperature variable conductivities and diffusivities have improved the model fit before tuning. The electrochemical parameters tuning was reduced from four parameters; diffusivities and maximum concentrations, to only the solid-phase diffusivities. The magnitude of tuning was also reduced, the tuning needed of the negative electrode diffusivity was decreased by 303%. The diffusivity of the negative electrode is key to improving the models for high energy cells, large changes in magnitude of the diffusivity with temperature variation with only small changes in SOC, cause difficulties in fitting. To improve the fits at higher rates, the effect of the ohmic resistance and heating must be taken into consideration. As observed by the fit of the 2D discharge and relaxation, the actual observed voltage is significantly lower than the estimated. This is likely because the diffusion coefficient is being underestimated and Ohmic heating is causing faster movement of the lithium ions in the solid, resulting in more lithium transport over that time frame.