Abstract: To address the problems of poor stability and slow kinetics of antimony-based anode materials, a T-type Sb₂Te₃/Te nanoheterojunction was prepared by the solvothermal method and coated with cellulose. The heterostructure spontaneously generates internal electric fields that promote charge transport and relieve stress. First effect and interface stability can be improved by carbon coating. When the composite was used in the negative electrode of the sodium ion battery, the first coulomb efficiency reached 93.7%, and the reversible capacity of 423.8 mAh·g⁻¹ remained after 200 cycles at 100 mA·g⁻¹ current density. Even after 500 cycles at 1 A·g⁻¹ high current density, there is still a reversible capacity of 306.4 mAh·g⁻¹, and the capacity retention rate is 75.6%. This heterojunction composite offers a promising approach for the preparation of high capacity and high rate anode materials for sodium ion batteries.