Fig. 6

Stability of 0.7Li(CB9H10)–0.3Li(CB11H12) during prolonged cycling. a Cycling performance of discharge capacity and coulombic efficiency for a discharging rate of 5 C and a charging rate of 1 C at 60 °C. b FE-SEM image of the 0.7Li(CB9H10)–0.3Li(CB11H12)/Li interface after 100 cycles. c XRD patterns and d Raman profiles of 0.7Li(CB9H10)–0.3Li(CB11H12) before and after 100 cycles. A small amount of an unknown phase was detected in the XRD pattern. Scale bar, 20 μm in b