SnO2-MoO3 nanoparticles anchored in carbon nanotubes as a large-capacity, high-rate, and long-lifetime anode for lithium-ion batteries

• DOI: 10.1016/j.ceramint.2021.06.115
• Publication Date: 2021-06-23T14:51:15Z
• Authors: Xiaoqian Deng; Menghan Zhu; Jin Ke; Wenrui Li; Yefeng Feng; Deping Xiong; Miao He
• Keywords: 02 engineering and technology; 0210 nano-technology; 7. Clean energy

Abstract SnO2-MoO3 hybrid nanoparticles are anchored in a few-walled carbon nanotube (CNT) network to synthesize SnO2-MoO3-CNT nanocomposite by hydrothermal and ball grinding methods. The CNTs can alleviate the volume expansion of SnO2, improve conductivity and shorten the transmission paths of the electrons and Li+. The SnO2-MoO3-CNT composite has a high initial coulombic efficiency of 80.9% and shows a large invertible capacity of 1372.2 mAhg−1 after 280 cycles at 0.2 Ag-1 and the coulomb efficiency holds more than 98.0% after the second cycle, high-rate property of 743.6 mAhg−1 at 5.0 Ag-1 and long-term cycling capacity of 886.3 mAhg−1 at 1.0 Ag-1 after 950 cycles. Because of its outstanding properties, ternary SnO2-MoO3-CNT nanocomposite is a confident anode material for lithium-ion batteries.