fig3

Figure 3. (A) 1st, 5th GCD profiles of the FeS-ZnS/PCFs-20% anode at 0.2 A g^-1; (B) CV curves of the ZnS/PCFs anode at 0.5 mV s^-1; (C) CV curves of the FeS-ZnS/PCFs-20% anode at 0.5 mV s^-1; (D) Cycling performance of ZnS/PCFs and FeS-ZnS/PCFs-20% anodes at 0.2 A g^-1; (E) Rate performance of the ZnS/PCFs and FeS-ZnS/PCFs-20% anodes at different current densities of 1, 2, 3, 4 and 5 A g^-1; (F) Capacity histograms of ZnS/PCFs and FeS-ZnS/PCFs-20% anodes; (G) Long cycling performance of the anodes at 1 A g^-1.