It describes the modification of physical properties in 8 MeV energy electron beam (EB) irradiated PVDF-HFP/LiClO4 (with ratio 90:10, PHL10) polymer electrolyte film have been studied. The FT-IR result shows the appearance of C=C by breaking of H-bound indicates chain scission process due to irradiation effect. The deep porous with an inner hollow-shaped surface morphology was observed upon irradiation and the decrease in crystallinity was confirmed by the XRD and DSC analysis. The optical absorbance was increased due to the interband transition of electrons from the valence band to the...