Synthesis and Characterization of Silicon Nanoparticles Inserted into Graphene Sheets as High Performance Anode Material for Lithium Ion Batteries

Figure 3

SEM images of (a) graphene, (b) Si nanoparticles/graphene composite, and (c) Si nanoparticles/graphene anode after 40 cycles between 0.02 and 1.5 V with 100 mAhg⁻¹ charge/discharge current density and (d) TEM images of Si nanoparticles/graphene composite.

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