Abstract:

Carbon-coated tin antimony alloy particles were prepared by hydrothermal method using antimony tin oxide nanoparticles (Sn0.92 Sb0.08 O2.04) as the precursor and glucose as carbon source, then the electrostatic spinning technique was used to prepare carbon coated tin antimony alloy nanofibers (SnSb@C/C). Transmission electron microscopy and scanning electron microscope were used to characterize the morphology of carbon coated tin antimony nanoparticles and nanofibers, and X-ray diffractometer were measured to assess the structure of nanofibers. The electrochemical performance of SnSb@C/C nanofibers as cathode materials for lithium ion batteries was researched. The experimental results showed that the carbon coated tin antimony alloy nanofibers were prepared successfully; with the increase of carbon coated tin antimony alloy content of nanofiber, cathode material prepared has the high irreversible capacity and good cycle performance .

Key words: hydrothermal synthesis, carbon coated tin antimony alloy, electrostatic spinning, nanofiber