Solid‐state NMR studies of chemical exchange in ion conductors for alternative energy applications

Abstract Here we describe the selective inversion methodology for quantifying the rates of site‐specific ion exchange in materials such as lithium ion battery cathode frameworks. This strategy is shown to be robust in the presence of paramagnetic centers and viable and efficient for the evaluation of hopping rates, in spite of varying initial conditions for the NMR experiment. This is contrasted with 2D EXSY methodology, and selective inversion …