Fig. 1: Structural and electrochemical characterization of the synthesized solid-state electrolytes. | Nature Communications

Fig. 1: Structural and electrochemical characterization of the synthesized solid-state electrolytes.

From: Realizing long-cycling all-solid-state Li-In||TiS2 batteries using Li6+xMxAs1-xS5I (M=Si, Sn) sulfide solid electrolytes

Fig. 1

a–d X-ray diffraction patterns of a Li6+xSnxAs1–xS5I (x = 0, 0.05, 0.10, 0.15, 0.20, 0.30, 0.40, 0.60), b Li6+xSixAs1–xS5I (x = 0, 0.10, 0.20, 0.30, 0.40, 0.50, 0.60, 0.70, 0.80, 0.90, 1.00), and the enlarged X-ray diffraction patterns at 28° ~ 31° for c Li6+xSnxAs1–xS5I (x = 0, 0.10, 0.30), d Li6+xSixAs1–xS5I (x = 0, 0.20, 0.80). e–h Nyquist plots of e Li6+xSnxAs1–xS5I (x = 0, 0.05, 0.1, 0.6), f Li6+xSnxAs1–xS5I (x = 0.15, 0.2, 0.3, 0.4) and g Li6+xSixAs1–xS5I (x = 0, 0.1, 0.2, 1), h Li6+xSixAs1–xS5I (x = 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9). Note that the data here are measured in a cell configuration with stainless steel (SS) as electrode and solid electrolyte (SE) as separator at 25 °C. i The ionic conductivity at 25 °C of Li6+xSnxAs1–xS5I and Li6+xSixAs1–xS5I as a function of substitution proportion x. j Arrhenius plots of the ionic conductivity of Li6AsS5I (LASI), Li6.3Sn0.3As0.7S5I (LASI-30Sn), Li6.8Si0.8As0.2S5I (LASI-80Si), and Li6PS5Cl (LPSC) as a function of temperature from 0 to 75 °C. k The comparison of ionic conductivity at 25 °C and activation energy of representative sulfide SEs reported in previous works and the synthesized Li6.8Si0.8As0.2S5I32.

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