fig7

Figure 7. Three kinds of solid lithium-ion conductor/lithium metal interfaces: (A) thermodynamically stable interface without reaction; (B) mixed conducting interphase with reaction; (C) metastable SSE interphase with reaction (reproduced with permission from^[81]). (D) Comparison of electrochemical stability for various electrolyte materials grouped by anion with their high-voltage stability primarily depending on the anion (reproduced with permission from^[82]).