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Sossz-Carb: Solid-State Electrolytes Based on Starch-Sodium Bicarbonate
and Its Application In Zn-Carbon Battery
Mohd Hasyraf bin Abdol Habib
Supervisor: Dr Mohd Faiz bin Hassan
Bachelor of Applied Science (Electronics and Instrumentation Physics)
School of Ocean Engineering
The solid-state polymer electrolytes based on starch as a host polymer and sodium
bicarbonate (NaHCO3) as an ionic dopant were prepared by a single-solvent via
solution casting method. The solid polymer electrolyte films were in amorphous phase
and the coexistence of peaks of the materials (Starch and NaHCO3) ratifying that the
complex films were successfully obtained. The films appeared to be rough and flat
shape of surface from the observation through SEM. The sample containing 30 wt%
NaHCO3 provide the highest ionic conductivity (σ) of 1.12×10-3 S cm-1 at room
temperature (303K). The open circuit voltage of the fabricated battery using the asprepared
film can maintain the voltage above 1.0 V for 70 hours. These preliminary
results revealed that the as-prepared solid polymer electrolyte has a high potential to
be used in all solid state zinc-carbon battery.
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