Molecularly conductive behavior of blended polymer electrolyte-based CMC/PVA

• Main Authors: Noor Saadiah, Mohd Ali, Zhang, Dishen, Nagao, Yuki, Ahmad Salihin, Samsudin
• Format: Article
• Language: English
• Published: DRPM Universitas Indonesia 2019
• Subjects: QC Physics
• Online Access: http://umpir.ump.edu.my/id/eprint/28705/1/MAKARA%202019.pdf; http://umpir.ump.edu.my/id/eprint/28705/; http://journal.ui.ac.id/technology/journal/article/download/3639/414; https://doi/org/10.7454/mst.v23i1.3639
• Institution: Universiti Malaysia Pahang Al-Sultan Abdullah

This study investigated the electrical conduction and structural behavior of blended polymer electrolyte (BPE)-based carboxymethyl cellulose (CMC) and polyvinyl alcohol (PVA) in the development of solid-state electrochemical devices. Based on impedance spectroscopy and correlating Fourier transform infrared (FTIR) with thermogravimetric analysis, a framework was proposed to explain the structural enhancement of the BPE system. As revealed by FTIR, the optimum conductivity of CMC/PVA BPEs was 9.21× 10− 6 Scm− 1 for 80: 20 composition attributed to the intermolecular attraction between the polymers. Thermal stability of the CMC/PVA was influenced by the formation of a hydrogen bond between the hydroxyl (-OH), carboxylate (-COO-), and ether linkage (-COC-) functional groups. The finding provides insights into blended polymer electrolyte-based CMC/PVA, which is beneficial in designing safe, thin, and lightweight energy storage devices.