fig3

Figure 3. Electrochemical performance: (A and B) CV curves and EIS plots of NFP/C-HT_0.01, NFP/C-HT_0.02, and NFP/C-HT_0.03 samples; (C) charge and discharge curves of NFP/C-HT_0.02 at 100 mA g^-1; (D and E) cycling performance at a current density of 100 mA g^-1 and rate performance of NFP/C-HT_0.01, NFP/C-HT_0.02, and NFP/C-HT_0.03 samples; (F) Ragone plots of NFP/C-HT_0.02 and other NFP materials for SIBs^{[16,20-22,42,43]}; (G) long-term cycling performance at 1 A g^-1 of NFP/C-HT_0.02.