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<p>In this work, a composite polymer electrolyte based on poly (ethylene glycol)/poly(acrylonitrile) (PEG/PAN) has been fabricated using the electrospinning technique, with varying weight ratios of gadolinium oxides (Gd<sub>2</sub>O<sub>3</sub>). Employing polymeric electrolytes having comparatively high mechanical strength, improved safety, and exceptional flexibility as alternatives to traditional electrolytic fluid is an efficient technique for reducing lithium (Li) dendrite development in Li-based batteries. Nevertheless, inadequate ionic conductivity, insufficient thermal resistance, and an extremely tiny electrochemical window continue to limit their uses. We present Gd<sub>2</sub>O<sub>3</sub> nanofibers enabled PAN/PEG-based composite polymer electrolytes (CPEs) with improved ionic conductivity&#xa0;and large electrochemical windows. The investigation found that adding 15 Wt.% Gd<sub>2</sub>O<sub>3</sub> nanofiber to PAN/PEG results in a flexible electrolyte membrane with increased performance, including high ionic conductivity (1.026 × 10<sup>–4</sup> S cm<sup>−1</sup>) at RT, Li<sup>+</sup> transfer number is 0.83, a broad electrochemical window (5.5&#xa0;V), and good thermal shrinkage 150&#xa0;°C, electrolyte uptake upto (~ 246%), porosity upto (~ 97%), and activation energy (0.23). This study demonstrates that adding&#xa0;Gd<sub>2</sub>O<sub>3</sub>nanofibers could enhance the electrochemical efficiency of PAN/PEG based This study demonstrates adding&#xa0;Gd<sub>2</sub>O<sub>3</sub>nanofibers could enhance the electrochemical efficiency of PAN/PEG-based composite polymer electrolytes for energy storage applications.</p>

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Electrospun poly(acrylonitrile) and poly(ethylene glycol) composite nanofibers incorporated with Gd2O3 NPs for energy storage applications

  • 期刊论文

  • 发表日期：

    2025年1月14日

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  • Mohan Jagan,
  • S. P. Vijayachamundeeswari

摘要

In this work, a composite polymer electrolyte based on poly (ethylene glycol)/poly(acrylonitrile) (PEG/PAN) has been fabricated using the electrospinning technique, with varying weight ratios of gadolinium oxides (Gd2O3). Employing polymeric electrolytes having comparatively high mechanical strength, improved safety, and exceptional flexibility as alternatives to traditional electrolytic fluid is an efficient technique for reducing lithium (Li) dendrite development in Li-based batteries. Nevertheless, inadequate ionic conductivity, insufficient thermal resistance, and an extremely tiny electrochemical window continue to limit their uses. We present Gd2O3 nanofibers enabled PAN/PEG-based composite polymer electrolytes (CPEs) with improved ionic conductivity and large electrochemical windows. The investigation found that adding 15 Wt.% Gd2O3 nanofiber to PAN/PEG results in a flexible electrolyte membrane with increased performance, including high ionic conductivity (1.026 × 10–4 S cm−1) at RT, Li+ transfer number is 0.83, a broad electrochemical window (5.5 V), and good thermal shrinkage 150 °C, electrolyte uptake upto (~ 246%), porosity upto (~ 97%), and activation energy (0.23). This study demonstrates that adding Gd2O3nanofibers could enhance the electrochemical efficiency of PAN/PEG based This study demonstrates adding Gd2O3nanofibers could enhance the electrochemical efficiency of PAN/PEG-based composite polymer electrolytes for energy storage applications.