Synthesis of Graphene-wrapped Silicon Nanoparticles by Ultra-sonication

7th National Conference on Processing and Characterization of Materials

Kale, P.G.^1 ; Sahoo, Mihir Kumar^1 ; Sadual, Nishit Kumar^2 ; Behera, S.K.^2

Department of Electrical Engineering, NIT Rourkela, Odisha, India^1

Department of Ceramic Engineering, NIT Rourkela, Odisha, India^2

关键词: Advanced materials;    Composite electrode;    Cyclic stability;    Ion batteries;    Large surface area;    Silicon nanoparticles;    Ultra-sonication;    Volume expansion;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/338/1/012034/pdf
DOI  :  10.1088/1757-899X/338/1/012034

来源: IOP

【 摘 要 】

Composite electrodes composed of silicon nanoparticles (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).