Effect Of Mn2+ Ions Addition On The Ionic Conductivity Of Methacrylic Acid – Ethyl Acrylate (Maa: Ea) Copolymer Electrolyte Films

New polymer electrolyte films of Methacrylic Acid – Ethylacrylate (MAA:EA) copolymer embedded with different concentrations of Mn2+ ions were prepared by solution casting. Impedance measurements indicated that the room-temperature ionic conductivity of the films increased with increasing Mn2+ concentration until 4 mol%, being up to 0.202x10- 4 S cm-1 , and then decreased with further increasing Mn2+ concentration. In addition, the temperature-dependent ionic conductivity of the polymer electrolyte films followed an Arrhenius relation and the 4 mol% of Mn2+ incorporated copolymer electrolyte film exhibited a low activation energy for ionic conduction, being about 0.28 eV. Which is a promising value for ion battery applications.