fig3

Figure 3. (A) Electronic and (B) ionic conductivities of composite cathodes comprising Li₈VS_5.5 and the SE in weight ratios of 70/30, 75/25, 80/20, and 85/15. The electronic conductivities are measured at 25 °C, and the ionic conductivities are measured at 25, 45, and 60 °C. (C) Discharge capacities per composite cathode for ASS cells with different weight ratios of Li₈VS_5.5 and the SE and the same amount of Li₈VS_5.5. (D) Charge-discharge curves of ASS full cells containing Li₈VS_5.5 and Si electrodes. The mass loadings of the positive and anodes are 33 and 10.4 mg cm^-2, respectively. The cell is charged and discharged with a constant current and voltage at a rate of 0.01 C (until a rate of 0.001 C) over cut-off voltages of 1.22-3.62 V at 60 °C.