Fig. 5. (a) CVs of the Co/C NPs anode at different scan rates of 0.1–1.0 mV s−1. (b) The corresponding plots of log(i) vs. log(v) for each redox peak. (c) CVs and the capacitive contribution (purple zone) at a scan rate of 1.0 mV s−1. (d) Contribution ratio of capacitive (purple) and diffusion (green) controlled to total capacity at various scan rates. (e) Rate capability performance of Co/C NPs anode.
