Figure 1.
Investigation of symmetric Li/Na cells containing pure triglyme with EIS. (a) Nyquist plots with the characteristic frequency responses. The inset shows the corresponding equivalent circuit (R: resistance, CPE: constant phase element, Ws: finite-length Warburg response with short circuit terminus). (b,c) Arrhenius plots and Ea of different contributions observed in (a) corresponding to bulk, interface, and Li(Na) diffusion. The cells were measured after 150 h of storage under open-circuit conditions.