@Article{jpm.2025.069060,
AUTHOR = {Nurrul Asyiqin Shamsuri, Zamil Khairuddin, Muhamad Hafiz Hamsan, Norhana Abdul Halim, Mohd Fakhrul Zamani Kadir, Muhammad Fadhlullah Shukur},
TITLE = {Influence of LiCF<sub><b>3</b></sub>SO<sub><b>3</b></sub> on the Conductivity and Other Characteristics of Methylcellulose/PVA Blend-Based Electrolytes},
JOURNAL = {Journal of Polymer Materials},
VOLUME = {42},
YEAR = {2025},
NUMBER = {3},
PAGES = {729--742},
URL = {http://www.techscience.com/jpm/v42n3/64025},
ISSN = {0976-3449},
ABSTRACT = {Polymeric materials have emerged as a promising alternative to electrolytic solutions in energy storage applications. However, high crystallinity and poor ionic conductivity are the main barriers restricting their daily application. In this study, we propose a polymer electrolyte system consisting of methylcellulose-polyvinyl alcohol (MC-PVA) blend as host material and lithium trifluoromethanesulfonate (LiCF<sub>3</sub>SO<sub>3</sub>) as dopant, which was prepared using the solution-casting method. The electrochemical impedance spectroscopy (EIS) analysis revealed a maximum conductivity of 5.42 × 10<sup>−6</sup> S cm<sup>−1</sup> with 40 wt.% LiCF<sub>3</sub>SO<sub>3</sub>. The key findings demonstrated that the variation in the dielectric loss (<i>ε</i><sub>i</sub>) and dielectric constant (<i>ε</i><sub>r</sub>) was significantly correlated with the variation in ionic conductivity. Fourier-transform infrared spectroscopy (FTIR) analysis was done to analyse the salt-polymer interaction by observing the shifting of selected bands. By deconvoluting FTIR spectra in the wavenumber range of 970–1100 cm<sup>−1</sup>, transport properties of electrolytes were investigated and found to be improved when the salt concentration was increased to 40 wt.%. Results from the X-ray diffraction (XRD) study suggested that the higher salt concentration promoted the formation of an amorphous phase, which is favourable for ionic conduction. Field emission scanning electron microscopy (FESEM) study demonstrated that the addition of salt altered the surface morphology of MC-PVA.},
DOI = {10.32604/jpm.2025.069060}
}