▎ 摘　　要

Nano-crystalline Li4Ti5O12 with an average size of 18 nm was in situ grown on graphene sheets using ionic liquid of C12H23ClN2 [Omirn]Cl as the exfoliated agent. Such unique nanostructure provides a high electrode/electrolyte area for the electron transport and the nanosized Li4Ti5O12 leads to a short path for the lithium ion transfer. When used as an anode material for lithium-ion battery, the Li4Ti5O12/graphene nanostructure exhibits excellent reversibility (159 mAh g(-1) at 0.5 C after 100 cycles) and high-rate performance (162 mAhg(-1) at 0.2 C, 148.5 mAhg(-1) at 20 C). Crown Copyright (C) 2013 Published by Elsevier Ltd. All rights reserved.