fig12

Figure 12. (A) Types of interfaces between lithium metal and a solid lithium ion conductor: (I) a non-reactive and thermodynamically stable interface; (II) a reactive and mixed conducting interphase; (III) a reactive and metastable solid-electrolyte interphase (SEI). Reproduced with permission^[117] (Copyright 2015, Elsevier). (B) Decomposition energy E_D of sulfide electrolyte as a function of applied voltage Li. Reproduced with permission^[106] (Copyright 2015, American Chemical Society). (C) First-principles calculation results of the voltage profile and phase equilibria of LGPS during lithiation and delithiation. Reproduced with permission^[103] (Copyright 2016, Wiley-VCH). (D) Schematic of Li metal/Li₆PS₅Cl interface cycled at an overall current density above the CCS. Reproduced with permission^[116] (Copyright 2019, Springer Nature Publishing AG).