Extended Data Fig. 8: EIS study of Li-S9.3I and Li-S full cell at 25 °C during initial cycles.
From: Healable and conductive sulfur iodide for solid-state Li–S batteries
(a) The initial discharge/charge curves of a Li-S9.3I cell, and the corresponding dQ/dV curves (b) derive from (a). (c) The EIS of the Li-S9.3I cell at different states of discharge. (d) The EIS of the Li-S9.3I cell at different states of charge. The DRT analysis of EIS at different states of discharge (e) related to (c), and states of charge (f) related to (d). (g) The initial discharge/charge curves of a Li-S cathode, and the corresponding dQ/dV curves (h) derive from (g). (i) The EIS of the Li-S cell at different states of discharge. (j) The EIS of the Li-S cell at different states of charge. The DRT analysis of EIS at different states of discharge (k) related to (i), and states of charge (l) related to (j). The impedance of S9.3I cathode is much lower than that of pure S cathode during cycling.
