Poly(Vinylidene Fluoride- co-Hexafluoropropylene) (PVdF-co-HFP)-Based Gel Polymer Electrolyte for Lithium-Ion Batteries

Abstract

Lithium-ion batteries (LIBs) have played a significant role in next-generation electrochemical energy storage devices, being used for electric/hybrid vehicles, power stations, portable electronics, etc. Polymer electrolytes are suitable electrolytes for LIBs due to their advantages with respect to being safe, lightweight, more flexible, with wide electrochemical stability windows, etc. Polymer electrolytes are electrolytic materials which have a wide range of applications in electrochemical energy storage materials. These materials are synthesized by the dissolution of lithium salts in high-molecular-weight polymers. Solvent casting is a synthetic procedure by which a polymer is dissolved in a suitable solvent, which is then cast onto a glass plate to produce a film. Blending polymers attracted the interest of researchers, owing to the subsequent improvements in ionic conductivity, ease of preparation, increased thermal stability and ability to control the properties by varying the polymer contents.