On the cathode side, the pre-edge peak emerged only in the baseline electrolyte after 25 cycles, attributed to residual polysulfides from the slower kinetics and partial isolation on the surface, preventing oxidation back to S8/Li2S8. Conversely, in the 0.01 M BNC-containing electrolyte, the cathode predominantly consisted of S8 (elemental sulfur), highlighting superior sulfur kinetics compared to the baseline, with no residual polysulfides present on the cathode surface. It is important to note that quantitatively identifying the polysulfides in this section for specific chain-order using standard reference samples is challenging due to their complex combination throughout different stages of SRR. Nonetheless, the relatively high ratio of middle and short-chain polysulfides existed on both anodes and cathodes suggests an inferior SRR kinetics consequence for the baseline electrolyte.