RGO–RGONRs–Zn2SnO4 Composite with Three-Dimensional Hierarchical Structure for Use in Lithium-Ion Batteries

Abstract

RGO–RGONRs–Zn2SnO4 composite with three-dimensional (3D) hierarchical structure has been formed from Zn2SnO4 nanoparticles grown on conducting reduced graphene oxide (RGO) and reduced graphene oxide nanoribbons (RGONRs) via a chemical co-reduction process. The presence of the RGONRs in this unique hybrid nanostructure prevents restacking of the graphene sheets and provides additional electron transport paths. Lithium-ion batteries using this 3D RGO–RGONRs–Zn2SnO4 composite as anode material displayed enhanced rate capability (510.6 mA h g−1 even at 1600 mA g−1) and cycling properties (779.8 mA h g−1 after 50 cycles at current density of 200 mA g−1).