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Starch Based Solid Polymer Electrolyte Doped with Magnesium Sulphate
and Its Application In Zn-Carbon Battery
Nur Syazwan Bin Nor Azimi
Supervisor: Dr Mohd Faiz Bin Hassan
Bachelor of Applied Science (Electronics and Instrumentation Physics)
School of Ocean Engineering
The field of Solid Polymer Electrolyte is slightly more than two decades old. In this
study, the objective is to produce a starch-based solid polymer electrolyte and its
application in Zn-Carbon battery. Starch is chosen because it is much cheaper
compared to other polymer. The starch was doped with Magnesium Sulphate or Epsom
Salt through solution casting method. The amount of salt doped to the starch is
according to weight percentage of the starch. In this study, the starch was doped from
5wt% up to 40wt% at 5wt% increment. Thin films samples were then analysed with
Electrochemical Impedance Spectroscopy (EIS) to calculate the resistivity of the
samples, Fourier Transform Infra-Red Spectroscopy (FTIR) to investigate their
molecule bonding, X-Ray diffraction (XRD) to determine the phase identity and battery
tester to test the Open Circuit Voltage (OCV) of the batteries fabricated.
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