▎ 摘　　要

Carbon encapsulated Fe3O4/graphene frameworks with highly oriented macroporous structures have been constructed by an ice-segregation-induced self-assembly process. Serving as the anode materials in lithium-ion batteries, the oriented macropores can reduce the polarization of electrode and the loss of capacity, and the carbon shells can effectively prevent the pulverization of Fe3O4 caused by the innerplane volume expansion. C-Fe3O4/G with 60 wt% of Fe3O4 delivers a high capacity of 1065 mA h g(-1) at a current density of 0.2 A g(-1) after 200 cycles. Even at a high current density of 8 A g(-1), the electrode still achieves a high capacity of 470 mA h g(-1).