Study on structural, electrical, morphological, thermal and mechanical properties of P(VdC-co-AN)/PEG polymer electrolyte for energy storage applications

• Published in: Materials science & engineering. B, Solid-state materials for advanced technology Solid-state materials for advanced technology, 2024-11, Vol.309, p.117655, Article 117655
• Main Authors: Vijaya, B., Usha Rani, M.
• Format: Article
• Language: English
• Subjects: Ionic conductivity; P(VdC-co-AN); PEG; Plasticizer; Polymer electrolyte
• ISSN: 0921-5107
• DOI: 10.1016/j.mseb.2024.117655

[Display omitted] •A novel P(VdC-co-AN)/PEG/LiClO4/PC PEs is prepared via solution casting method.•Prepared films exhibit good thermal, mechanical, and strong ionic conductivity.•AC ionic conductivity ∼ 10-4 S/cm confirms the suitability of the PEs in LIBs.•Synthesized PEs can be a promising alternate for separators in energy devices. Electrochemical devices play pivotal roles in fostering a sustainable future. In modern technologies, the research and development of solid electrolytes are effectively utilized in electrochemical devices. Here in, we report a solid polymer electrolyte as a separator for lithium-ion batteries. Novel synthetic polymers [ Poly (vinylidene chloride- co– acrylonitrile), Poly Ethylene Glycol] are blended with constant weight percentage of salt [lithium perchlorate (LiClO4)] and different concentrations of plasticizer [propylene carbonate (PC)] using solvent casting method. As polymer electrolyte’s ionic conductivity enhanced up to 10-4 S/cm with 4.5 V electrochemical stability at ambient temperature. Furthermore, these polymer electrolytes restrain the growth of lithium dendrites, which were entrenched via temperature-dependent impedance method. The PC influence enhances the tensile strength of polymer electrolyte (upto 56.76 MPa). Dielectric study shows the non-Debye behaviour of the prepared electrolytes. To sum up, PEG and PC incorporated polymer membrane opt-out as a separator in lithium-ion batteries.