The activity in 300-400 cm -1 in the black curve in Fig. (0% depth of discharge) can also be attributed to sulfur chain deformation, as has been revealed in our previous study. This activity, similar to the one at ∼200 cm -1 also arises from lithium-sulfur vibrations at higher depths of discharge [Fig. (a), panel (VIII)]. As discussed earlier, the activity at ∼450 cm -1 can be assigned to S-S stretching, the one at ∼500 cm -1 to DIB vibrations, ∼560 cm -1 to C-S stretching, and finally those at ∼650 cm -1 to coupled (lithium-)sulfur/DIB vibrations.