fig3

Figure 3. (A) CV curves and (B) voltage curves results of the SiO_x/G/C electrode; (C) Rate capabilities of SiO_x/G/C electrodes at different current densities compared with control groups; (D) SiO_x/G/C’s charging and discharging voltage curves under different current densities; (E) SiO_x/G/C’s cyclic capabilities at 1.5 A·g^-1 compared with control groups; (F) Thick SiO_x/G/C (~2.2 mg·cm^-2) electrode’s cycling performance at 2.0 mA·cm^-2; (G) SiO_x/G/C’s long-term cycling performance of electrode at 1.0 A·g^-1. CV: Cyclic voltammetry.