A graphene-based nanostructure with expanded ion transport channels for high rate Li-ion batteriesElectronic supplementary information (ESI) available: Details of sample preparation and characterization. See DOI: 10.1039/c2cc32276e

A graphene-based nanostructure with expanded Li + transport channels is reported, which is characterized by high capacity and excellent rate performance as an anode material for Li-ion batteries. The expanded structure is obtained by employing linear polymers as the spacers in the stacking process of graphene nanosheets. A graphene-based nanostructure with expanded ion transport channels is prepared for high rate Li-ion batteries, where linear polymers act as spacers in the rearranging process of graphene layers.