▎ 摘　　要

LiFePO4 (LFP) nanocrystals directly grown on graphene sheets (GS) was developed by an in-situ transformation approach using Fe2O3 as precursor. This novel strategy ensured intimate contact between LiFePO4 and graphene sheets, the uniform distribution of both components within the composite. Moreover, the presence of graphene controlled the growth of LiFePO4 nanocrystals (30-100 nm) and significantly increased electrical conductivity (0.6 S m(-1)). Consequently, LFP-GS delivered a high specific capacity (165, 160 and 140 mAh g(-1) at 0.1 C, 1 C and 5C, respectively), outstanding cycling stability (160 mAh g(-1) at 1 C with no capacity fading after 100 cycles) and rate capability (121 mAh g(-1) at 20 (C). 2013 Elsevier B.V. All rights reserved.