Implementation of Tin Dioxide/Graphene/Graphene Oxide for High Capacity and Long Cycle Life Lithium Ion Batteries

Dorvilien, Valerio

Wednesday, 16 October 2019

Grand Ballroom (The Hilton Atlanta)

V. Dorvilien (Department of Physics, University of Puerto Rico, San Juan), M. LopezdeVictoria, V. Dorvilien (Department of Physics, University of Puerto Rico), F. Mendoza (Dept. of Physics, Univ. of Puerto Rico Rio Piedras Campus), B. R. Weiner (IFN, University of Puerto Rico), and G. Morell (Dept. of Physics, Univ. of Puerto Rico Rio Piedras Campus)

We explored a non-conventional process to synthesize SnO₂/G/GO composite powder which is a conformal structure that was characterized under different techniques. Comprehensive analysis of the structural and chemical properties reveals that the material consists of highly dispersed SnO₂ nanoparticles in G/GO matrix.

We examine the electrical conductivity of the electrodes by atomic force microscope (AFM), scanning electron microscope (SEM) and transmission electron microscope (TEM). The SnO₂/G/GO composite exhibited high discharge capacity and excellent electrochemical performance as anode material for lithium ion Battries. The quantitative/qualitative results show that G/GO is providing contact areas which results in more energy density at the interface electrode/electrolyte and that the SnO₂ provides additional ions to the EDL and the electrochemical process.