S. N. Asnin, Wahab, Dian Permana, L. O. Ahmad, S. H. Sabarwati, L. O. A. N. Ramadhan
chitosan, deacetylation, membrane, lithium, conductivity, polymer battery
Batteries are being developed to solve the global energy crisis. Using portable electronic devices has been increasing and leading to a strong need of their power-sources. However, secondary batteries using a liquid electrolyte have weaknesses, such as prone to leakage and difficulty of packing. Solid polymer electrolyte is a solution to the existing problems. The aims of this research were to determine the effect of deacetylation degree towards the ion conductivity properties of chitosan membranes, the effect of concentration of chitosan-lithium membranes and capability of ionic conductivity as electrolyte polymer for lithium polymer battery application. The membranes were prepared by the solvent evaporation method. Synthesis of chitosan-lithium has been successfully carried out, which indicated by the characteristic peaks at 1573.8 cm-1 correspond to ionic interaction between lithium salt with NH2 groups from chitosan. Modification of chitosan by the addition of lithium salt increases the membrane ionic conductivity. Chitosan membrane conductivity was 1.70 x 10-2 S.cm-1 while the conductivity of chitosan after adding lithium salt increased to 8.53 x 10-2 S.cm-1. This solid polymer electrolyte membrane was suggested to have a potential used for polymer electrolyte in lithium battery applications.
Cite this paper
S. N. Asnin, Wahab, Dian Permana, L. O. Ahmad, S. H. Sabarwati, L. O. A. N. Ramadhan. (2016) Conductivity Improvement of Chitosan Membranes through Modification with Lithium for Lithium Polymer Battery Application. International Journal of Chemistry and Chemical Engineering Systems, 1, 65-69