High rate capability and long cycle stability Fe3O4-graphene nanocomposite as anode material for lithium ion batteries

► Fabrication of graphene and Fe3O4 nanocomposite for lithium ion batteries anode. ► In situ synthesis method leads to small particle size. ► Small particle size results in fine and strong interfacial interaction. ► The nanocomposite shows high rate capability and super long cycling stability.