One-step construction of hexagonal WO3 nano-shuttles with enhanced lithium storage performance

Abstract

In this work, WO₃ nanorod-based aggregates and WO₃ nano-shuttles were constructed by a facile hydrothermal route. The structure, morphology, element composition and valence state of the formed WO₃ samples were characterized using different testing instruments. As the active anode for lithium-ion batteries, the WO₃ nano-shuttle electrode can deliver a reversible specific capacity of 614.7 mA h g⁻¹ after 300 cycles at a current density of 500 mA g⁻¹. The excellent electrochemical properties indicate that WO₃ nano-shuttles are a prospective anode candidate for high performance lithium-ion batteries.