Li ion batteries (LIBs) are important for energy storage in portable electronic devices, power tools, and electrical vehicles, all of which require high energy density. In order to meet the increasing demand for high energy density batteries, it is essential to develop high-capacity electrode materials. Recently, metal- and metal oxide-based anode materials have been reported to exhibit higher Li storage capacities than commercial graphite anode. However, the reversible charging and discharging process is accompanied by large volume variation, which can result in the pulverization of high capacity anodes and loss of electrical contact, causing rapid capacity decay upon extended cycling. The most promising approach is the integration of metal oxides with carbonaceous materials. Inspired by this approach, we demonstrate a facile strategy for fabricating a 3D reduced graphene oxide (RGO)-SnO₂ architecture that encompasses the merits of both SnO₂ nanostructures and carbonaceous materials with the aim of improving energy storage in LIBs, especially in terms of cycling performances. The hierarchical SnO₂-RGO aerogel shows excellent electrochemical performance, with a high reversible capacity, a high rate capacity and good cycleability. This performance is attributed to the uniform dispersion of SnO₂ nanoparticles and the 3D macroporous continuity, which provide a large accessible area, easy ion accessibility, short ion diffusion length, and rapid charge and mass transport. More details will be discussed at the meeting.