Figure 5

(A) CV curve of CCG10, (B) discharge–charge capacity plots at current density of 200 mA g−1 and (C) rate-dependent capacity plots of (a) CCG0, (b) CCG5, (c) CCG10, (d) CCG20 and (e) layered CoO2 nanosheets. (D) discharge–charge capacity plots of CCG10 electrode at current density of 1000 mA g−1. (E) Potential profile at current density of 1000 mAg−1 for the nanocomposite of CCG10.