A Study of Economical and Renewable Polymer Based Flexible Electrolyte Film for Electrochemical Device Application

Abstract

Modernization of the world demands energy storage devices to be lighter, safer, flexible newlineand cost effective and hence researchers are motivated to develop more accommodating newlinedesigns for future applications. The energy devices have two important components i) newlineelectrolyte and ii) electrodes and each of them plays an important role in the device. For newlineexample in supercapacitor, the capacity and hence the energy density is mainly decided newlineby electrode material whereas the equivalent series resistance (ESR) and hence the power newlinedensity is dominantly controlled by electrolyte. Research in the field of electrode newlinematerials and their designing has seen tremendous advancement whereas to achieve low newlineESR one has to still depend upon liquid electrolytes. newlineHaving low viscosity in comparison to solid state materials, the liquid electrolytes are the newlinebest performing systems till date but they have many disadvantages like leakage, newlinedesigning limitations, corrosion and shorter shelf life. In this respect solid polymer newlineelectrolytes are an alternate option because of having soft and flexible physique which newlinecan be molded in desired shape and size etc. supporting the designing ease. Polymer newlineelectrolytes can be classified in different categories such as i) gel polymer electrolyte, ii) newlinecomposite polymer electrolyte, iii) plasticized polymer electrolytes, iv) polymer-salt newlinecomplex/solvent free electrolytes, etc. In polymer based electrolytes, polymer salt newlinecomplexes are the most studied one, because of ease in their fabrication and molding newlinethem in different shapes and sizes. Present thesis deals with polymer-salt electrolyte. newline