Calculations on electrode materials Structural and chemical stabilities AEpper(phase,uM)=Eeg(Ceg(C,uM))-E(phase)-AnM'UM uLi(中)=2；-eφ， 2.5 231y GeS2 P2S 214y LiaPS4 LioGeRS122LiPS,+LiGeS 2.0 Stability Window LGPS LLGeSe 1.5 P LGPS 130V Li GeS GeS 117V LiP? PS GeS (A)a6eoA 1.0 Ge Li3Pr 093y P26 87 s Ge 0.561 Ge 0.5 045y LiGe LiP 028V LinGe (a) (b) (c) LitsGe4 0.0 0 400 800 1200 1600 Capacity(mAh g) Phase Equilibria Structural and chemical stabilities Calculations on electrode materials