Figure 6

(a) The initial three cycles discharge-charge curves of DP-NTCDI-250 (current density: 25 mA g−1); (b) The cyclic performance of DP-NTCDI-250 (current density: 25 mA g−1); (c) The rate capabilities of DP-NTCDI-250.
(a) The initial three cycles discharge-charge curves of DP-NTCDI-250 (current density: 25 mA g−1); (b) The cyclic performance of DP-NTCDI-250 (current density: 25 mA g−1); (c) The rate capabilities of DP-NTCDI-250.