▎ 摘　　要

We designed and synthesized a new self-supporting composite with Fe2O3 nanorods and three-dimensional graphene foam (GF). Fe2O3 tightly combined with graphene foam can well maintain the microstructure of the electrode, and can effectively reduce the volume expansion problem and improve the cycle stability of the electrode. Graphene foam as a matrix material effectively improves the conductivity of the electrode material, providing a channel for rapid electron transfer. Fe2O3@GF shows better lithium storage performance than electrode materials calcined at 300 degrees C and 500 degrees C, and Fe2O3-400@GF calcined at 400 degrees C shows good cycle stability and high-rate performance, with a retention capacity of 410 mAh.g(-1) at 2 A.g(-1).