Synthesis and Characterization of (PVA.LiOH)-Fe3O4 Composite as Magnetic Electrolyte Polymer Membrane
Rahmawati Munir*1), Mahardika Prasetia Aji2), Dadan Hamdani1), Sahara Hamas Intifadhah1)

Rahmawati Munir1,*), Mahardika Prasetia Aji2), Dadan Hamdani1), Sahara Hamas Intifadhah1)
1)Theoretical and Material Physics, Physics Department, Faculty of Mathematics and Natural Science, Mulawarman University, Jl. Barong Tongkok No.4 kampus Gn Kelua, Samarinda. 75123
2)Physics Department, Faculty of Mathematics and Natural Science, Universitas Negeri Semarang Sekaran Gn. Pati, Semarang. 50229

*)coresponding author: rahmawati[at]fmipa.unmul.ac.id

Abstract

Currently, research on electrolyte membrane separators for lithium-ion batteries has been developed. The advantages of polymer electrolyte membranes as ionic transport media are strong mechanical properties and a wider operating temperature. Therefore it can be used in a number of electrochemical devices such as fuel cells (fuel cells), sensors, supercapacitors and batteries. The aim of this research is to develop the characteristics of magnetic electrolyte polymer membranes. The research was conducted through two stages, namely synthesis and characterization. In the initial stage, synthesized of polymer electrolyte solution (PVA.LiOH) and dispersed Fe3O4 particles grown in situ in electrolyte polymer solution. The Fe3O4 forming materials used were FeSO4, Fe(NO3)3 and LiOH which were reacted into the polymer electrolyte solution. The concentration of FeSO4 as a carrier ion Fe2+ was increased up to 10 times from the actual mole ratio to obtain stable formation of Fe3O4 magnetic particles in electrolyte polymer solution. At the characterization stage, measurements of electrical conductivity, morphological, elemental content, structure and magnetic properties were carried out. The electrical conductivity of PVA.LiOH polymer electrolyte with Fe3O4 magnetic particles is on the order of 1.81x10-3 S/cm, while without Fe3O4 magnetic particles, the electrical conductivity is on the order of 2.48x10-4 S/cm. The presence of magnetic particles can effectively increase the electrical conductivity of the PVA.LiOH polymer electrolyte and the magnetic properties of Fe3O4 become a new potential in the development of electrolyte polymers.

Keywords: Electrical Conductivity- Electrolyte Membrane- Magnetic Particle

Topic: PHYSICAL SCIENCES