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Efficient recycling of lithium-ion batteries (LIBs) is crucial for a sustainable future. Electrochemical recycling presents a promising eco-friendly alternative to traditional pyrometallurgy and hydrometallurgy processes. The membrane separator, facilitating efficient ion transport within a battery system is pivotal for the success of electrochemical recycling. This study explores the use of poly (3,4-ethylenedioxythiophene): polystyrene sulfonate (PEDOT: PSS) as a conductive polymer in the membrane, aiming to enhance lithium-ion movement. Membrane will be developed by incorporating PEDOT: PSS into a host polymer, polyethylene oxide (PEO) using the solvent casting method. The conductivity of the separators was measured using electrochemical impedance spectroscopy (EIS), with the 1.0 wt% composition demonstrating the highest conductivity at 6.19 × 10−4 S/cm. Morphological and chemical compositions were further characterized using field emission scanning electron microscopy (FESEM) and Fourier transform infrared spectroscopy (FTIR). These findings hold promise for advancing the recycling efficiency of lithium in Li-ion batteries.

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Study of Conductivity and Morphological Properties Using Different Composition of PEDOT: PSS/PEO Film as a Membrane for Lithium-Ion Batteries Recycling

  • 会议论文

  • 发表日期：

    2025年

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  • Awatif Hassim,
  • Nur Najiha Abd Maliaman,
  • Mohamad Arif Kasri,
  • Fatin Nur Azmina Mohd Fauzi,
  • Suzana Ratim,
  • Mohd Muzamir Mahat

摘要

Efficient recycling of lithium-ion batteries (LIBs) is crucial for a sustainable future. Electrochemical recycling presents a promising eco-friendly alternative to traditional pyrometallurgy and hydrometallurgy processes. The membrane separator, facilitating efficient ion transport within a battery system is pivotal for the success of electrochemical recycling. This study explores the use of poly (3,4-ethylenedioxythiophene): polystyrene sulfonate (PEDOT: PSS) as a conductive polymer in the membrane, aiming to enhance lithium-ion movement. Membrane will be developed by incorporating PEDOT: PSS into a host polymer, polyethylene oxide (PEO) using the solvent casting method. The conductivity of the separators was measured using electrochemical impedance spectroscopy (EIS), with the 1.0 wt% composition demonstrating the highest conductivity at 6.19 × 10−4 S/cm. Morphological and chemical compositions were further characterized using field emission scanning electron microscopy (FESEM) and Fourier transform infrared spectroscopy (FTIR). These findings hold promise for advancing the recycling efficiency of lithium in Li-ion batteries.