Figure 7. Self-discharge studies.

(a) Cycling performances (at 500 mA g⁻¹ current density) of pure sulfur and bulk S90 copolymer cathodes with 120 h rest time. (b) discharge profiles of pure sulfur and S90 electrode after the rest time of 120 h. (c) discharge profiles of S90 copolymer electrode for 1st, 5th (before rest), 6th (after rest), and 7th cycles. (d) charge-discharge profile of S90 cathode for 6th (after rest) discharge, 6th charge and 7th discharge. (e) EIS measurements of fresh cells composed of pure sulfur and S90 electrodes at OCV. (f) EIS measurements of both the cells after the rest time of 120 h.