| dc.description.abstract | In this research we have synthesized Na2MnSiO4 by solid state reaction of Na2CO3, MnCO3 and
SiO2 and fabricated a sodium ion rechargeable
cell using this material in the cathode. The
elemental analysis of the synthesized material
was done using Energy Dispersive X-ray
(EDX) spectroscopy. Since the material itself is
an insulator, we have to optimize the carbon
percentage in the cathode to obtain the best result
in this investigation. Electrodes were prepared
by using the active materials to which activated
carbon was added varying the percentage from
5% to 20%, and 15% of Polyvinylidene Fluoride
(PVDF) was added as the binder. The rechargeable
battery was fabricated in an argon filled glove box
using the cathode made of active material coated
on an Al foil, and metallic sodium was used as
the anode. The electrolyte was 1M NaClO4 in
propylene carbonate. The fabricated cell was
galvanostatically charged and discharged to
find out the specific charge capacity of the cell.
According to the results, the highest specific
discharge capacity of 8.16 mAh/g was attributed
to the carbon percentage of 15%. Further
investigations are being conducted to bring up
the charge capacity of the cell to a practically
viable limit. | en_US |
