▎ 摘　　要

To optimize the cycle life and rate performance of lithium-ion batteries (LIBs), ultra-fine Fe2O3 nanowires with a diameter of approximately 2 nm uniformly anchored on a cross-linked graphene ribbon network are fabricated. The unique three-dimensional structure can effectively improve the electrical conductivity and facilitate ion diffusion, especially cross-plane diffusion. Moreover, Fe2O3 nanowires on graphene ribbons (Fe2O3/GR) are easily accessible for lithium ions compared with the traditional graphene sheets (Fe2O3/GS). In addition, the well-developed elastic network can not only undergo the drastic volume expansion during repetitive cycling, but also protect the bulk electrode from further pulverization. As a result, the Fe2O3/GR hybrid exhibits high rate and long cycle life Li storage performance (632 mAh g(-1) at 5 A g(-1), and 471 mAh g(-1) capacity maintained even after 3000 cycles). Especially at high mass loading (approximate to 4 mg cm(-2)), the Fe2O3/GR can still deliver higher reversible capacity (223 mAh g(-1) even at 2 A g(-1)) compared with the Fe2O3/GS (37 mAh g(-1)) for LIBs.