Study on the polymer electrolyte membrane based on P(VDF-HFP)/Al_2O_3 composite

In the present paper, polymer gel composite electrolyte films based on the P(VDF HFP)/Al 2O 3 were prepared by solution casting and electrolyte absorption. The separator films obtained in such a method exhibit a high electrolyte uptake ability, and show a good mechanical property. AC impedance spectra show the polymeric film blended with nanometer sized Al 2O 3 has lower interfacial resistance. Additionally, because of the semicrystalline structure of the films, the glass transition temperature T g was not observed by DSC tests. The half batteries used such polymer films show excellent charge and discharge characteristics.