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A Hybrid Si@C@CNT@C Anode by Anchoring Silicon Nanoparticles onto CNT for Enhancing Performance in Lithium Ion Battery

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Academic year: 2019

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Figure

Fig. 1(a) is the X-ray diffraction (XRD) patterns of Si, Si-PANI, Si-PANI-CNT-PANI-DOP and
Figure 2. SEM of (a) Si nanoparticles; (b) Si-PANI; (c) CNT; (d) CNT-PANI; (e) Si-PANI@CNT-PANI@DOP; (f) Si@C@CNT@C; (g)-(i) HRTEM images of Si@C@CNT@C
Figure 3. （a） Cyclic voltammograms of Si@C@CNT@C based electrode in the voltage range of 0.01 V~1.5 V (vs.Li/Li+) at a scan rate of 0.1 mVs-1; (b) The first discharge/charge voltage profiles of electrodes prepared from bare Si (olive dash), Si@C (green das
Figure 4. (a) Rate capability of the Si@C@CNT@C electrode cycled at various current densities ranging from 0.42 to 8.4 Ag-1; (b) Nyquist plots of Si@C@CNT@C electrode
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