In this paper we parameterise the LG M50, a cell that with a very high energy density 267 Wh kg , attributed to high electrode coat weight and its composition of Li[Ni1-x-yMnxCoy]O2 (NMC) and SiOy materials. To our knowledge, this is to date the highest energy cell reported in literature, for which parameterisation has been performed, and the only cell to have the thermal characteristics for the electrodes and cell (267 Wh kg ). The parameterisation provides the modelling community with the data to predict thermal inhomogeneities within the cell by detailing the cell anatomy and the thermal transport properties required to extend to 3D. Including the information allows better predictions about battery performance to be made, therefore allowing more efficient thermal management systems to be designed. The M50 has become popular in the academic battery modelling community. The thermal parameters for this cell have not been outlined, meaning research has neglected the thermal behaviour or used properties not specific to the M50. Presently, the influence of temperature on the electrochemical behaviour has not been included or these properties required have been taken from a different cell. This work details the complete experimental design for a thermal-electrochemical parameterisation of a 21700 cylindrical cell to evaluate the geometric, electrochemical, and thermal properties of the electrodes, separator, and current collectors. In addition to providing the information necessary for a 3D thermal model, the lithium concentration and temperature parameter dependencies are documented to enable more accurate model predictions by accounting for the local variability in performance during cell operation. Models often neglect the effect of lithium concentration and temperature on cell properties, despite the parameters being significantly influenced by these variables. This includes the experimental methodology and the mathematical analysis to assess these parameter-dependencies, which can be applied to commonly used NMC and graphite materials.