One-step construction of hexagonal WO 3 nano-shuttles with enhanced lithium storage performance.

In this work, WO 3 nanorod-based aggregates and WO 3 nano-shuttles were constructed by a facile hydrothermal route. The structure, morphology, element composition and valence state of the formed WO 3 samples were characterized using different testing instruments. As the active anode for lithium-ion batteries, the WO 3 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 WO 3 nano-shuttles are a prospective anode candidate for high performance lithium-ion batteries.