LAUSR

Abstract Ternary metal vanadium oxides have been considered as potential anode materials for lithium-ion batteries (LIBs). However, the poor electronic conductivity and large volume expansion during the discharge/charge process lead to poor electrochemical performance. Herein, we firstly report the preparation of grass-like Zn 3 V 3 O 8 nanobelts array coated 3D carbon fiber cloth (Zn 3 V 3 O 8 /CFC) as a binder-free anode for LIBs. The composites could effectively improve the kinetics of electronic transportation and mitigate the volume expansion of electrodes during discharge/charge process. As a result, the Zn 3 V 3 O 8 /CFC exhibits excellent Li + storage properties. It can deliver a reversible capacity of ∼1750 mA h g −1 at a low current density of 100 mA g −1 and a specific capacity of 942 mA h g −1 at the high rate of 1.5 A g −1 . Even measured at high current density of 5 A g −1 , the electrode could maintain a high capacity of 455 mA h g −1 after 500 cycles with a capacity retention of 82.7%.