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Fig. 3 | Nanoscale Research Letters

Fig. 3

From: Mesoporous Silicon Microspheres Produced from In Situ Magnesiothermic Reduction of Silicon Oxide for High-Performance Anode Material in Sodium-Ion Batteries

Fig. 3

a Cyclic voltammetry measurements of MSMs at different current density, b representative charge–discharge curves of MSMs at various current densities, c capacity retention of MSMs at various current densities, and (d) discharge capacity retention of MSMs and silicon nanospheres at a current density of 1000 mAg−1 and 100 mAg−1

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