Investigation on effect of weight ratios of PEG to BaTiO_3 on PVdF-HFP Nano Composites for Li-ion Batteries

摘要

In the present study Polyethylene Glycol 2000(PEG2000)-Barium Titanate(BaTiO3) in five different weight ratios were physically blended to the plasticized PVdF-HFP/LIBETI matrix to study the ionic conductivity thermal, morphology and XRD properties was attempted. The ionic Conductivity observation show that 15:5wt% PEG:BaTiO3 only improved magnitude of conductivity 1.256X10~(-5) S/cm (Sample-V2) than 20:0(V1), 10:10(V3), 5:15(V4), 0:20(V5). The XRD profile show the suppression of β-phase of PVdF and presence of BaTiO_3, irrespective of increase/decrease in the mass gradient of PEG, and not supportive of the conductivity beyond V2 was noted. The TGA on PEG:BaTiO3 20:0(V1), 0:20(V5) and, 15:5(V2) it was observed that V1 underwent three stages of weight losses and V5 with single stage (over the sample V2) suggest that membrane not having more weight losses due to higher aggregation of filler was observed..