Binder free SnOCNT composite as anode material for Li-Ion battery

Abstract

Tin dioxide-carbon nanotube (SnOCNT) composite films were synthesized on copper substrates by a one-step process using hot filament chemical vapor deposition (HFCVD) with methane gas (CH as the carbon source. The composite structural properties enhance the surface-to-volume ratio of SnOdemonstrating a desirable electrochemical performance for a lithium-ion battery anode. The SnOand CNT interactions were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), and Fourier transform infrared-attenuated total reflectance (ATR-FTIR) spectroscopy. Comprehensive analysis of the structural, chemical, and electrochemical properties reveals that the material consists of self-assembled and highly dispersed SnOnanoparticles in CNT matrix. The process employed to develop this SnOCNT composite film presents a cost effective and facile way to develop anode materials for Li-ion battery technology. © 2014 Dionne Hernandez et al.