| Autor: |
Wu Z; College of New Energy and Materials, Ningde Normal University, Fujian Provincial Key Laboratory of Featured Materials in Biochemical Industry, Ningde 352100, China. yingshaoming@126.com.; College of Chemistry, Fuzhou University, Fuzhou 350002, China., Huang Z; College of New Energy and Materials, Ningde Normal University, Fujian Provincial Key Laboratory of Featured Materials in Biochemical Industry, Ningde 352100, China. yingshaoming@126.com., Yu M; College of New Energy and Materials, Ningde Normal University, Fujian Provincial Key Laboratory of Featured Materials in Biochemical Industry, Ningde 352100, China. yingshaoming@126.com.; College of Chemistry, Fuzhou University, Fuzhou 350002, China., Du Y; College of New Energy and Materials, Ningde Normal University, Fujian Provincial Key Laboratory of Featured Materials in Biochemical Industry, Ningde 352100, China. yingshaoming@126.com., Li J; College of New Energy and Materials, Ningde Normal University, Fujian Provincial Key Laboratory of Featured Materials in Biochemical Industry, Ningde 352100, China. yingshaoming@126.com., Jia H; College of Mathematics and Physics, Ningde Normal University, Ningde 352100, China., Lin Z; College of Mathematics and Physics, Ningde Normal University, Ningde 352100, China.; College of Physics and Energy, Fujian Normal University, Fujian Provincial Solar Energy Conversion and Energy Storage Engineering Technology Research Center, Fuzhou 350117, China., Huang X; College of New Energy and Materials, Ningde Normal University, Fujian Provincial Key Laboratory of Featured Materials in Biochemical Industry, Ningde 352100, China. yingshaoming@126.com., Ying S; College of New Energy and Materials, Ningde Normal University, Fujian Provincial Key Laboratory of Featured Materials in Biochemical Industry, Ningde 352100, China. yingshaoming@126.com. |
| Abstrakt: |
Due to its abundance, high theoretical capacity, and environmental benefits, tin dioxide (SnO 2 ) shows great potential as an anode material in sodium-ion batteries (SIBs). However, the inadequate electrical conductivity and significant volume fluctuations during the Na + insertion/extraction process are major limitations to its practical application. Herein, few-layered MoS 2 @SnO 2 @C (FMSC) composites with hierarchical nanostructures were prepared through a two-step hydrothermal method. As expected, the electrochemical tests show that the FMSC exhibits superior electrochemical properties, such as an outstanding rate capability of 288.9 mA h g -1 at a current density of 2 A g -1 , a high reversible capacity of 415.9 mA h g -1 after 50 cycles at a current density of 0.1 A g -1 , and remarkable cycling stability of 158.4 mA h g -1 after 4400 cycles at a current density of 5 A g -1 , as an anode material for SIBs. The exceptional performance can be attributed to the presence of a thin layer of MoS 2 , which enhances surface electrochemical reactions and provides a flexible structure. |
