Role of Ceramic Nanofillers in Enhancing Pore Formation and Conductivity of Solid Polymer Electrolyte Membranes

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Solid polymer electrolyte (SPE) with PVdF polymer and LiBOB salt has been prepared with the doctor blade method. To improve the membrane ionic conductivity, TiO₂ was added in different variations: 0%, 5%, 10%, and 15%. Surface morphology analysis was performed using SEM and energy-dispersive X-ray (EDX) spectroscopy. The conductivity behavior was studied using AC impedance spectroscopy (EIS). SEM and EDXS analyses revealed that TiO₂ addition played a role in pore formation in the solid polymer electrolyte membrane. The highest room-temperature ionic conductivity of the PVdF–LiBOB solid polymer electrolyte system in this study was 4.65 mS cm⁻¹ at 10% TiO₂. It was also found that the agglomeration of TiO₂ particles on the surface of the membrane resulted in a decrease in ionic conductivity.

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53-58

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May 2026

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© 2026 Trans Tech Publications Ltd. All Rights Reserved

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