Although the τ parameter can also be introduced in PDW, in this work, we use the fixed diffusion length L because L is well-defined for thin-film LNMO electrodes. For the consistency, we also use a fixed L for the analysis of NCA electrodes. However, due to the ambiguity of L for the NCA electrodes, the diffusion coefficients are derived in a semi-quantitative manner, depending on the chosen value of L.