Study on the construction of Zn3(VO4)2@Fe3O4 composite with the enhanced lithium storage properties

In this work, Zn 3 (VO 4 ) 2 @Fe 3 O 4 composites were constructed and utilized as the anode materials for lithium-ion batteries. The formed Zn 3 (VO 4 ) 2 @Fe 3 O 4 composites with a Zn 3 (VO 4 ) 2 /Fe 3 O 4 weight ratio of 1:1 and 1:2 delivered the discharge capacities of 925.6 and 684.4 mA h g −1 respectively. The introduction of Fe 3 O 4 enhances the electronic/ionic transport and structural stability of the Zn 3 (VO 4 ) 2 microstructure, improves the charge transfer kinetics and pseudocapacitive behavior and stabilizes the cycling performance, thereby boosting the lithium storage capacity of the Zn 3 (VO 4 ) 2 based electrodes.