Study on properties of gel polymer electrolytes of PVDF-HFP

The lithium ion batteries are commercialized due to their shape versatility,flexibility,and lightness and can meet the demands of microelectronic industries.Poly(vinylidenefluoride-co-hexafluoropropylene)(PVDF-HFP) is one of the most popular polymers for gel polymer electrolytes(GPE) because of its high ionic conductivity,good mechanical,thermal,interfacial,and electrochemical stabilities.In this paper,the progress and the composition of solid polymer electrolyte based on PVDF-HFP was reviewed briefly and the preparation technology of the polymer electrolyte was introduced.The influences on the properties of the polymer electrolyte were analyzed.The progress of modified the polymer electrolyte were discussed,including the modification of filler,plasticizer,polymer,copolymerization and blending technologies.The development of polymer electrolyte in the future was also suggested.