Improvement of Specific Capacitance in Lithium Ion Batteries By Mesoporous Carbon Hybrid Nanostructures

Wednesday, 16 October 2019
Grand Ballroom (The Hilton Atlanta)
V. Dorvilien (Dept. of Physics, University of Puerto Rico, San Juan, USA, Institute for Functional Nanomaterials, UPR-RP), C. V. Rojas (Dept. of Chemistry, University of Puerto Rico, USA), N. Santa Cruz (Department of Physical Sciences, University of PR), F. Mendoza (Department of Physics, University of Puerto Rico), B. R. Weiner (IFN, University of Puerto Rico), and G. Morell (Dept. of Physics, Univ. of Puerto Rico Rio Piedras Campus)
We propose a low cost and simple method to prepare carbon hybrid structure-based electrodes in this study. Hybrid-structure Carbon Nanostrures was obtained using a zeolite as a template. The resulting carbon nanostructure is mostly configured by Graphene and multiwall carbon nanotubes (G/MWCNTs). The G/MWCNTs were dispersed onto the shallow surface of alumina foil forming as the electrodes. The electrical conductivity and dispersed morphology of the G/MWCNTs -based conductive electrode were examined by atomic force microscope (AFM), scanning electron microscope (SEM) and transmission electron microscope (TEM). Using the standard method we assembled the Lithium Ion Battery in the Ar-filled glove box, we used LiPF6 with EC:DMC::1:2 ratio as the electrolyte, lithium foil as the counter electrode and G/MWCNTs material. The specific capacity and cycle-life stability of the G/MWCNTs-based lithium ion battery was investigated by cyclic voltammetry analysis.