fig2
Figure 2. Electrochemical properties of Co0.7Ni0.3HCF and CoHCF at 25 °C (1 C = 150 mA g -1). (A) Typical CV curves measured at a scan rate of 0.1 mV s-1. Charge/discharge voltage profiles of (B) Co0.7Ni0.3HCF and (C) CoHCF at 5 C at different cycles. (D) Long-cycle performance at 5 C. (E) Rate performance at 0.2-20 C.
