structural and conductivity studies of pan-based al2o3 nano composite gel polymer electrolytes

An attempt has been focused to develop a new aluminum ion conducting non aqueous polymer electrolyte for high power rechargeable batteries having applications in rapidly growing markets, such as laptops, handy tele communication equipments, electric vehicles, camcorders, etc. these features have given a thrust to develop a suitable nano composite gpe based on pan as polymer host and sodium fluoride (naf) as dopant salt and al2o3 as nano filler in the form of thin films through solution casting technique consuming n,ndimethyl formamide (dmf) as a common solvent. ncgpe films have been prepared by solution casting technique. the xrd pattern of 70pan30naf with addition of wt% al2o3 ceramic filler indicates reducing degree of crystallinity. using ir studies revealed that the complexation of the polymer poly (acrylonitrle) with naf. the conductivity of the gpes was studied with enhancement of nano fillers. the sample containing 3% of al2o3 exhibits the highest conductivity of 4.82x103s cm1 at room temperature (303k) and 5.96x103s cm1 at 378k. with the help of wagner rsquo;s polarization technique electronic (te) and ionic (ti) values can be determined.to determine profiles of discharge characteristics (70pan30naf3wt% al2o3) ncgpe solidstate electrochemical cell was fabricated and various cell profiles were evaluated