Abstract
Three dimensional (3D) Bi2WO6 microspheres are successfully synthesized by the hydrothermal method using Bi(NO3)3·5H2O and NaWO4·2H2O as raw materials. The structure and morphology of the samples are characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM). The results show that the Bi2WO6 takes on morphology of microspheres. As a novel anode material for lithium-ion batteries (LIBs), the as-prepared Bi2WO6 electrode exhibits both high reversible capacity and good cycling performance at room temperature under a potential window from 3.0 to 0.01 V (vs. Li+/Li) at current density of 100 mAg−1. The Bi2WO6 anode has initial discharge capacity as 1218 mAhg−1 and retained its reversible capacity at 922 mAhg−1 after 129 cycles. The Bi2WO6 with morphology of microspheres is a promising anode material for the lithium-ion battery application.
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