fig1

Figure 1. (A) Historical development of solid-state electrolytes. Reprinted (adapted) with permission from Wang et al.^[41]. Copyright (2020) American Chemical Society. (B) Radar plots showing the performance properties of sulphides and oxides. This figure is quoted with permission from Manthiram et al.^[18]. (C) Comparison of ionic conductivity of various solid-state lithium-ion conducting electrolytes. This figure is quoted with permission from Goodenough et al.^[42].