▎ 摘　　要

A three-dimensional (3D) graphene interconnected network coupled with uniformly dispersed alpha-Fe2O3 nanorings (alpha- Fe2O3@GA) was designed by a simple hydrothermal self-assembly strategy and was used as anode material for lithium-ion batteries (LIBs). The alpha-Fe2O3@GA composites delivered a reversible capacity of 1288 mAhg(-1) over 100 cycles at 100 mAg(-1) and excellent rate performance than those of pure alpha-Fe2O3, owing to the synergetic effect of hollow alpha-Fe2O3 nanorings and inherent 3D porous graphene aerogels. In virtue of their superior lithium storage performance, the alpha-Fe2O3@GA composites will be promising lithium-ion battery anode materials. Moreover, this study provides a versatile route to synthesis other 3D graphene aerogel-based transitional metal oxide materials for commercial applications in lithium-ion batteries.