The High-Performance Polymer Electrolytes Based on Agarose–Mg(ClO4)2 for Application in Electrochemical Energy Storage Devices

• Published in: Journal of Advanced Research in Fluid Mechanics and Thermal Sciences
• Main Author: Ali N.I.; Abidin S.Z.Z.; Majid S.R.
• Format: Article
• Language: English
• Published: Semarak Ilmu Publishing 2024
• Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85200796527&doi=10.37934%2farfmts.118.1.6585&partnerID=40&md5=5d39a220a6e45b02d1432e3f45d81c02

Electrochemical energy storage devices (EES) such as batteries and supercapacitors depend significantly on electrolytes, which have properties that significantly impact their energy capacity, rate performance, cyclability, and safety. Agarose–Mg(ClO4)2–based polymer electrolyte was prepared using the solution casting method by incorporating various amounts of Mg(ClO4)2 from 0 – 35 wt%. The presence of Mg(ClO4)2 as the dopant in agarose-matrix enhanced the ionic conductivity of the system from 1.796 × 10-8 S∙cm-1 to 6.247 × 10-4 S∙cm−1 in the composition of 30 wt% Mg(ClO4)2 due to the production of free ions. This system obeys the Arrhenius rule as it records the conductivity increment when temperature increases. This increment shows the amorphous nature of electrolytes, which XRD analyses by determining the crystallite size and degree of crystallinity of agarose–Mg(ClO4)2 polymer electrolyte. High ionic conductivity at room temperature has increased attention to this polymer electrolyte based on agarose– Mg(ClO4)2. © 2024, Semarak Ilmu Publishing. All rights reserved.