fig2
![Enhanced all-climate sodium-ion batteries performance in a low-defect and Na-enriched Prussian blue analogue cathode by nickel substitution](https://image.oaes.cc/9959e570-1a9a-4e1b-b4b7-6c608b92e083/5397.fig.2.jpg)
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.