Ionic Conduction and Electrochemical Performance of Propylene Carbonate-Plasticized PLA–LiClO₄ Polymer Electrolytes for EDLC Applications
DOI:
https://doi.org/10.66514/ssst34-1-40-59Keywords:
Polylactic Acid, Impedance, Conductivity, Cyclic voltammetry, Galvanostatic Charge-DischargeAbstract
The transition to green energy technologies requires environmentally friendly electrolytes that can replace hazardous liquid systems while enabling rapid charge storage. This study investigates biodegradable solid polymer electrolytes based on a poly (lactic acid)–LiClO₄ matrix plasticized with 10–70 wt.% propylene carbonate for electric double-layer capacitor (EDLC) applications. Electrochemical and structural analyses showed that the electrolyte containing 30 wt.% propylene carbonates exhibited the best performance, achieving a room-temperature ionic conductivity of 1.69×10⁻³ S cm⁻¹ due to a maximized free-ion fraction (65.71%) and enhanced polymer chain flexibility, along with a broad electrochemical stability window of 5.6 V. The fabricated EDLC demonstrated a maximum specific capacitance of 47.43 F g⁻¹ at 1 mV s⁻¹, delivering an energy density of 3.12 Wh kg⁻¹ and a power density of 173.61 W kg⁻¹ at 5 mA g⁻¹. These results confirmed the potential of the developed electrolyte for sustainable, high-performance green energy storage applications in next-generation EDLCs.
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Copyright (c) 2026 Fairuzdzah Ahmad Lothfy, Nur Ainul Mardhiyah Shahri Zaili, Nurul Infaza Talalah Ramli, Siti Zafirah Zainal Abidin (Author)
This work is licensed under a Creative Commons Attribution 4.0 International License.
