fig4

Figure 4. (A) Schematic of advantages and challenges of using SSEs in Li-S batteries. The figure in the blue circle is quoted and modified from Qi et al.^[52] Copyright 2023, Wiley-VCH GmbH; (B) Saturation solubility of Li₂S₈ (expressed in mM of atomic S) in the electrolytes, where Li₂S₈ is the nominal formula, assuming a complete reaction between S₈ and Li₂S without disproportion reactions. This figure is quoted and reproduced from Yanagi et al.^[53] Copyright 2020, The Electrochemical Society by IOP; Charge/discharge voltage profiles evolution with cycling for cells with (C) DOL/OCTO and (D) DOL/DME electrolytes in the corresponding voltage window. These figures are quoted and reproduced from Robles-Fernández et al.^[54] Copyright 2024, Elsevier Ltd.; (E) The calculated fraction of Li⁺ coordinating complexes in the electrolytes of (THF)₁₂-LiTFSI, (THF)₂-LiTFSI, and (THF)₂-LiTFSI/toluene. This figure is quoted and reproduced from Liu et al.^[55] Copyright 2023, Elsevier Inc.; (F) The initial CV curve of Li-S batteries in the non-solvating G2_0.8LiTFSI electrolyte (G) In-situ XRD of the cathode during the initial cycle with the G2_0.8LiTFSI electrolyte. These figures are quoted and reproduced from Qi et al.^[52].