The specific heat capacity of the active materials was measured from the composite powders, whereas the thermal conductivity could not be measured directly so thermal diffusivity is measured first to calculate it. The thermal properties of the components should be considered with the presence of electrolyte as the commercial cell is comprised this way and the electrolyte significantly effects thermal transport. However, due to the volatility of the electrolyte, ex situ measurements could not be carried out for the separator or electrode and in situ measurements do not allow the deconvolution of the thermal properties of individual components-this is needed to enable physics-based models to predict thermal inhomogeneities. Here we outline a method to calculate the thermal properties of the wetted electrode using experimental data from the extracted electrodes.