However, we see a gradual breaking of S-S bonds in the course of discharge. This implies that the organic sulfur atoms play an important role in keeping the emerging lithium-sulfur structures connected to the organic groups via C-S bonds. This has also been argued earlier to be one of the factors contributing to the good electrochemical performance of S/DIB copolymers by anchoring the emerging lithium-sulfur structures to the organic groups. In fact, here we find the interaction energies between the lithium-sulfur structures and the organic groups (DIB molecules together with organic sulfur atoms) at 100% depth of discharge to be about 1.4 times as high as a typical C-S covalent bond (E C-S ≃7.2 eV) The observed signals in the higher frequency range (1200-3300 cm -1 ) mostly correspond to vibrations of the DIB molecules (see Fig. in the Supplementary Information). Here, we particularly focus on the activities arising from lithium-sulfur structures.