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This study investigates the fabrication and application of a semi-solid bio-battery electrolyte made from pineapple peel waste. The gel electrolyte was synthesized by mixing pineapple peel pulp, polyvinyl alcohol (PVA) and glycerol. Fourier-transform infrared (FTIR) analysis and atomic absorption spectroscopy (AAS) is used to identify functional groups and chemical composition, respectively. Cyclic voltammetry analysis was conducted to determine corrosion rate of the electrodes when working in the pinapple gel electrolyte. Tafel plot analysis show significant reduction in corrosion when silver-coated copper electrodes were used. The gel electrolyte also enhanced the bio-battery’s performance, with a 3000% increase in potential difference compared to a pure pineapple peel electrolyte. These findings suggest that pineapple peel waste can resource for bio-battery electrolytes.

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Performance of Pineapple-Peel Based as Organic Gel Electrolyte for Bio-battery Under Different Working Electrodes

  • 章节

  • 发表日期：

    2026年

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  • Neneng Fitrya,
  • Shabri Putra Wirman,
  • Romi Fadli Syahputra,
  • Siti Hardiyanti,
  • Adila Pramudiah Prastiwi

摘要

This study investigates the fabrication and application of a semi-solid bio-battery electrolyte made from pineapple peel waste. The gel electrolyte was synthesized by mixing pineapple peel pulp, polyvinyl alcohol (PVA) and glycerol. Fourier-transform infrared (FTIR) analysis and atomic absorption spectroscopy (AAS) is used to identify functional groups and chemical composition, respectively. Cyclic voltammetry analysis was conducted to determine corrosion rate of the electrodes when working in the pinapple gel electrolyte. Tafel plot analysis show significant reduction in corrosion when silver-coated copper electrodes were used. The gel electrolyte also enhanced the bio-battery’s performance, with a 3000% increase in potential difference compared to a pure pineapple peel electrolyte. These findings suggest that pineapple peel waste can resource for bio-battery electrolytes.