Facile Synthesis of Antimony Tungstate Nanosheets as Anodes for Lithium-Ion Batteries

Yong Liu; Yue Wang; Fei Wang; Zhenxiao Lei; Wanhong Zhang; Kunming Pan; Jing Liu; Min Chen; Guangxin Wang; Fengzhang Ren; Shizhong Wei

doi:10.3390/nano9121689

Facile Synthesis of Antimony Tungstate Nanosheets as Anodes for Lithium-Ion Batteries

Nanomaterials (Basel). 2019 Nov 25;9(12):1689. doi: 10.3390/nano9121689.

Authors

Yong Liu^{1

2}, Yue Wang¹, Fei Wang¹, Zhenxiao Lei¹, Wanhong Zhang¹, Kunming Pan², Jing Liu^{1

3}, Min Chen⁴, Guangxin Wang¹, Fengzhang Ren¹, Shizhong Wei²

Affiliations

¹ Collaborative Innovation Center of Nonferrous Metals of Henan Province, Henan Key Laboratory of Non-Ferrous Materials Science & Processing Technology, School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang 471023, China.
² National Joint Engineering Research Center for Abrasion Control and Molding of Metal Materials, Henan Key Laboratory of High-Temperature Structural and Functional Materials, Henan University of Science and Technology, Luoyang 471023, China.
³ School of Agriculture, Henan University of Science and Technology, Luoyang 471023, China.
⁴ School of Materials Science and Energy Engineering, Foshan University, Foshan 528000, China.

Abstract

Lithium-ion batteries (LIBs) have been widely used in the fields of smart phones, electric vehicles, and smart grids. With its opened Aurivillius structure, tungstate antimony oxide (Sb₂WO₆, SWO), constituted of {Sb₂O₂}²ⁿ⁺ and {WO₄}^2n-, is rarely investigated as an anode for lithium-ion batteries. In this work, Sb₂WO₆ with nanosheets morphology was successfully synthesized using a simple microwave hydrothermal method and systematically studied as an anode for lithium-ion batteries. The optimal SWO (SWO-60) exhibits a high specific discharge capacity and good rate capability. The good electrochemical performance could be ascribed to mesoporous nanosheets morphology, which is favorable for the penetration of the electrolyte and charge transportation. The results show that this nanostructured SWO is a promising anode material for LIBs.

Keywords: anode; antimony tungstate nanosheets; cycling performance; lithium-ion batteries; microwave hydrothermal method; rate capability.