Effect of Plasticizers on Structural and Dielectric Behaviour of [PEO + (NH₄)₂C₄H₈(COO)₂] Polymer Electrolyte

Abstract

Improvements in ion transport property of polyethylene-oxide- (PEO-) based polymer electrolytes have been investigated, using different types of plasticizers. The effects of single and coupled plasticizers [i.e., EC, (EC + PC), and (EC + PEG)] on structural and electrical behavior of pristine electrolyte were studied by XRD, SEM technique, and impedance spectroscopy. The electrical conductivity of the best plasticized system was found to be 4 × 10−6 S/cm. Argand plots show dispersive nature of relaxation time or inhomogeneous space charge polarization of plasticized polymer electrolyte.

Hydrogen ion conducting starch-chitosan blend based electrolyte for application in electrochemical devices

“…6b, the dark region starts to dominate accompanied by the appearance of linkage like structures. The plasticizer is believed to act as a spacer between molecules of polymer by forming links with them [44]. Besides, the plasticizer has created alternative pathways for ion conduction which can enhance the conductivity [45][46][47].…”

Optimization of the Electrochemical Performance of a Composite Polymer Electrolyte Based on PVA-K2CO3-SiO2 Composite

“…Moreover, the incorporation of filler can modify the polymeric nature of the electrolyte and enhanced conductivity. The selection of filler and its concentration was reported to influence film absorptivity and mechanical properties [18]. SiO 2 as a filler is an attractive material for preparing CPEs because it can improve electrochemical performance of the material by providing large surface area and high conductivity and promoting good electrolyte-electrode interaction.…”

“…Moreover, the incorporation of filler can modify the polymeric nature of the electrolyte and enhanced conductivity. The selection of filler and its concentration was reported to influence film absorptivity and mechanical properties [ 18 ].…”

“…It also improves ionic conductivity of the composites by reducing the crystallinity of the polymer and introducing Lewis acid–base interactions between the polar surface groups of the inorganic filler and the electrolyte ionic species. In addition, SiO 2 increases mechanical properties of the electrolytes and expands the cation transference number and interfacial stability between the electrolyte–electrode interfaces [ 18 ].…”

Development of PVB-Nano Cellulose based Polymer Electrolyte and Correlation of Optical Behavior with Ionic Conductivity

“…The image of CNF shows that the cellulose is in the form of fibers and the width of the range is 50 nm to few micrometer. In some cases, cellulose nano material which is prepared by chemical treatment is in the form of spherical shaped particle [39]. Pure PVB membrane shows the rough surface without any pores.…”