Investigation on compositional effect of PEG:BaTiO3 in plasticized PVC–LiBETi polymer composite electrolytes

Abstract

The blend-based polymer electrolyte comprising poly(vinyl chloride) (PVC) and poly(ethylene glycol) (PEG) as host polymer and lithium bis(perfluoroethanesulfonyl)imide as complexing salt have been prepared. Ethylene carbonate and dimethyl carbonate (50:50v/v) are used as plasticizer for the system. The barium titanate is used as a filler, and the ratio of (PEG:BaTiO 3 ) is varied to study its effect on the conductivity behavior of the electrolyte. XRD and ac impedance studies are carried out on the prepared samples. The ac impedance measurements show that the conductivity of the prepared samples depends on the (PEG:BaTiO 3 ) ratio, and its value is higher for (15:5)wt.% of (PEG:BaTiO 3 )-incorporated film. The temperature dependence of the conductivity of the polymer films obeys VTF relation. The role of ferroelectric filler in enhancing the conductivity is studied. The thermal stability of the film is ascertained from TG/DTA studies. The phase morphological study reveals that the porous nature of the polymer electrolyte membranes depends on the (PEG: BaTiO 3 ) ratio.

High performance of the sodium‐ion conducting flexible polymer blend composite electrolytes for electrochemical double‐layer supercapacitor applications

“…The pores indicate phase separation of the electrolyte for Na + ion transport between the electrodes 54 . The blend polymer composite system has an increased filler content, resulting in an asymmetric structure with no pore connectivity 64 . From all membrane morphology, it can be seen that 30 wt% by weight has larger pores and better connectivity.…”

“…54 The blend polymer composite system has an increased filler content, resulting in an asymmetric structure with no pore connectivity. 64 From all membrane morphology, it can be seen that 30 wt% by weight has larger pores and better connectivity. FESEM analysis supports the results of conductivity studies.…”

Electrochemical analyses ofZrO2dispersoid incorporated poly (styrene‐methyl methacrylate) blend gel electrolytes for lithium‐ion battery

“…Among the studied nano-sized ceramic fillers, ZrO 2 is the better candidate to raise the conductivity of ions, because of its huge relative permittivity (ε = 23) and also large band gap. 15 The monoclinic ZrO 2 with spherical morphology with a particle size of 170 nm has been synthesized earlier by our group. 16 Uma et al 17 described that the maximum conductivity obtained is 1.02 Â 10 À7 S cm À1 for a 10 wt% ZrO 2 based plasticizer polymer electrolyte system.…”

“…Among the studied nano‐sized ceramic fillers, ZrO 2 is the better candidate to raise the conductivity of ions, because of its huge relative permittivity ( ε = 23) and also large band gap 15 . The monoclinic ZrO 2 with spherical morphology with a particle size of 170 nm has been synthesized earlier by our group 16 .…”