811, 838, 881, and 3016-3017 cm -1 ), and Li-DME coordination (879 cm -1 ). Overall, Figure shows that the peaks due to both the IL anion and cation disappear in the Raman spectra for gel-2. Furthermore, the Raman spectra for gel-2 and the pure LHCE bear close resemblance. Together, these results lead us to conclude that the electrolyte exchange is successful and complete.