Open AccessElectrochemical and Spectroscopic Studies of Nanocomposites Laden with BaTiO3-grafted-graphene Oxide
Author(s) -
S. Padmaja,
R. Nimma Elizabeth
Publication year - 2018
Publication title -
international journal of scientific research in science and technology
Language(s) - English
Resource type - Journals
eISSN - 2395-602X
pISSN - 2395-6011
DOI - 10.32628/ijsrst18401163
Subject(s) - graphene , raman spectroscopy , dielectric spectroscopy , materials science , electrolyte , electrochemistry , nanocomposite , ionic conductivity , lithium (medication) , oxide , chemical engineering , faraday efficiency , conductivity , membrane , nanotechnology , chemistry , electrode , medicine , physics , engineering , endocrinology , optics , metallurgy , biochemistry
The electrochemical behavior of lithium-sulfur batteries was investigated by means of electrochemical impedance spectroscopy (EIS). Films of NCPEs (PEO+LiCF3SO3+BaTiO3-g-GO) were cast using a novel hot-press technique. The addition of filler in fractional amount to the solid polymer matrix at room temperature further enhances the ionic conductivity. The membranes were subjected to cycling, FT-IR and Raman spectroscopic analyses. The occurrence of ion-ion pairs interaction has been identified using FT-IR and Raman analysis. Cells with this electrolyte have a high coulombic efficiency of 98% and a high cycling stability.