Shamitha, C.Janakiraman, S.Ghosh, S.Adyam, V.Prabhu, K.N.Anandhan, S.2026-02-042022Journal of Materials Research, 2022, 37, 22, pp. 3942-39548842914https://doi.org/10.1557/s43578-022-00700-4https://idr.nitk.ac.in/handle/123456789/22313Poly(vinylidene fluoride) (PVDF)/Ca–Al-layered double hydroxide(CAL) (PCL) nanocomposite-based nanofabrics were electrospun for application in lithium-ion batteries as gel polymer electrolyte (GPE). The nanofabric exhibited a high β-phase content of 82.79% after the addition of CAL that was synthesized by co-precipitation method. The PCL-based GPE exhibited enhanced electrochemical properties, such as high ionic conductivity, optimal Li-ion transference number, and improved electrolyte uptake due to the presence of a highly interconnected porous structure. The PCL GPE exhibited an ionic conductivity of 3.54 × 10–3 S cm−1 at ambient temperature, which is much higher than that of pristine PVDF and commercial Celgard® 2400 separators. Moreover, Li/PCL/LiCoO<inf>2</inf> cell showed an initial discharge capacity of 140.31 mAh g−1, which is superior to that of PVDF and Celgard® 2400 separators. It also exhibited high coulombic efficiency retention of 99% after 30 cycles of charging. PCL-based GPE showed superior mechanical and low thermal shrinkage properties, indicating its suitability in battery separator application. Graphical abstract: [Figure not available: see fulltext.] © 2022, The Author(s), under exclusive licence to The Materials Research Society.Aluminum compoundsFluorine compoundsIonic conductivityIonsLithium-ion batteriesNanocompositesPolyelectrolytesPrecipitation (chemical)2d materialElectrospunsGel polymer electrolytesLayered-double hydroxidesLiNanoFabricsPerformancePhase's contentsPoly(vinylidene fluoride)SynthesisedSeparators