Synthesis of Graphene-wrapped Silicon Nanoparticies by Ultra-sonication

摘要

Composite electrodes composed of silicon nanoparticies (SiNPs) in accommodation with graphene oxide (GO) synthesized by the ultra-sonication method can be used as a Li-ion battery anode. SiNPs wrapped with graphene is found to be used as an advanced material for Li-ion anode battery because of the high charge storage capacity, low cost, large surface area, cyclic stability, and reliability in comparison to the conventional planner Si particle. The SiNPs coated with graphene can accommodate the volume expansion problem of Si during lithiation without any fracture. The graphene-wrapped SiNPs morphology and dimension were characterized by high-resolution transmission electron microscopy (HRTEM).