However, the function for the negative electrode entropic term was chosen to exclude the points at intermediate stoichiometries. This is because including these points inadequately describes heat generation at 0.5C, see Figure . This is despite the values reported here being similar as previously reported for this material, it is not clear why a discrepancy arises when the negative entropic coefficients for the negative electrode are included. Figure . Entropic term and polynomial fits for the negative electrode (left) and positive electrode (right). This term has been represented by high order even polynomial functions in the past, however this fitting is often inadequate outside the stoichiometric range. It is difficult to predict the entropic term value outside the measured range, for this reason it is assumed the parameter tends to zero, rather than assigning it a non-zero value that may overestimate heat generation.