The Effect Of Ammonium Nitrate And Ethylene Glycol In Carboxymethyl Cellulose Solid Polymer Electrolytes For Rechargeable Proton Battery

Abstract

Solid polymer electrolytes (SPEs) have been recognised as promising electrolytes to overcome the limitation in gel/liquid counterparts. In this research, the potential of carboxymethyl cellulose (CMC)-based SPEs was studied. Two systems, namely System I which comprised of CMC doped ammonium nitrate (NH4NO3) salt and System II which comprised of CMC-NH4NO3 plasticized ethylene glycol (EG) are prepared via solution casting technique. The interactions between polymer, salt and plasticizer in both systems are observed by FTIR analysis. The amorphousness and thermal behaviour of both systems are obtained by XRD and TGA-DTG analyses, respectively. The incorporation of 45 wt.% NH4NO3 salt in System I has optimized the ambient temperature ionic conductivity to (7.71  0.04) x 10 -3 -1 Scm . Ionic conductivity is enhanced to (3.80  0.06) x 10 -2 -1 Scm on the addition of 20 wt.% EG plasticizer in System II. The temperature-dependent ionic conductivity for both electrolyte systems is Arrhenian and thermally activated.