Fig. 3
From: Advanced sulfide solid electrolyte by core-shell structural design

Cyclic voltammetry (CV) test and analyses of the LSPS-Cl samples annealed at various temperatures. a Low-voltage (0.1−2.0 V) and b, c high-voltage (1.0−5.0 V) stabilities of LSPS-Cl materials. d Initial decomposition onset voltage and e integral spectrum intensity of three representative LSPS-Cl materials (LSPS-CL 400, 470, 500) in the categories of minor, medium, and severe decompositions. f Summary diagram to show the core-shell-structured LSPS-Cl materials with similar voltage stability window of ~0.7–3.1 V. The decomposition of minor-decomposition materials (LSPS-Cl 450–470) above 3.1 V is largely suppressed, giving a quasi-stability window up to 5 V