Preparation of SnO2 Nanoparticle and Performance as Lithium-ion Battery Anode

Herein we report that SnO2 nanoparticle is successfully prepared by the hydrolysis of SnCl2 as sodium dodecyl benzene sulfonate (SDBS) is used as the surfactant. The structures and electrochemical performances are characterized by scanning electron microscope (SEM), X-ray diffraction (XRD), galvanostatic cell cycling and electrochemical impedance spectroscopy (EIS). The morphology of the SnO2 nanoparticle is spherical. The SnO2 nanoparticle is cassiterite type which belongs to tetragonal crystal system with rutile structure. The results of galvanostatic cell cycling performances show that the SnO2 nanoparticle has high discharge specific capacity, but with relative low cycling stability. The sample calcinated for 9h has higher discharge specific capacity and lower electrochemical impedance.