Figure 5 | Scientific Reports

Figure 5

From: A universal synthetic route to carbon nanotube/transition metal oxide nano-composites for lithium ion batteries and electrochemical capacitors

Figure 5

(A) CV curves of the ZnCo2O4@CNT electrode at a scan rate of 0.5 mVs−1 between 0.01 V and 3.0 V. (B) Charge-discharge voltage profiles of the ZnCo2O4@CNT electrode at a current density of 400 mAg−1. (C) Rate capability of ZnCo2O4@CNT electrode at different current densities. (D) Comparison of cycling performance of ZnCo2O4@CNT (curve I), CNT (curve II) and pure ZnCo2O4 (curve III) at a current density of 400 mAg−1. Curve IV shows the corresponding coulombic efficiency of the ZnCo2O4@CNT electrode.

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