Effect of ethylene carbonate (EC) plasticizer on epoxidized 30% poly(methyl methacrylate)-grafted natural based polymer electrolytes for lithium batteries

• Published in: AIP Conference Proceedings
• Main Author: Nazir K.; Ismail S.N.S.; Zailani N.A.M.; Yahya M.Z.A.; Ali A.M.M.
• Format: Conference paper
• Language: English
• Published: American Institute of Physics Inc. 2021
• Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85102372805&doi=10.1063%2f5.0043681&partnerID=40&md5=452b8dd4f64db749dbaffc0809d89621

A gel polymer electrolytes (GPEs) comprising of 62.3 mol% of epoxidized-30% poly(methyl methacrylate) grafted natural rubber (62.3 mol% of EMG30) as a polymer host, LiCF3SO3 as a dopant salt and ethylene carbonate (EC) as plasticizer were prepared by solution-casting technique. The temperature dependence of the conductivity of the polymer plasticizer were prepared by solution-casting technique. The temperature dependence of the conductivity of the polymer films obey the Vogel-Tamman-Fulcher (VTF) relationship. The complexation between polymer, salt and plasticizer is observed in FTIR results. In the EMG30-LiCF3SO3-EC samples, the shifting of the Ȟ(C=O) mode of EC can be due to the interaction between EC and polymer or the coordination of Li+ on EC. The Li/Li+ interface stability of GPE with the oxidation occurs at the potentials 5.7 V making it suitable for possible use in the fabrication of lithium polymer cells. © 2021 American Institute of Physics Inc.. All rights reserved.