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<p>The advancement of structural energy storage materials is essential for optimising the lightweight design and spatial efficiency of electric automobiles and flying machines. Nonetheless, the utilisation of a structural electrolyte appropriate for structural stability electrical appliances is infrequently observed. The composite solid polymer electrolyte (CSPEs) utilising polyacrylonitrile (PAN)/cellulose (CA)/LiTFSI as the polymer matrix and Nb<sub>2</sub>O<sub>5</sub> as reinforcement fillers exhibits a lithium-ion transference number of (Li<sup>+</sup>) 0.91, a conductivity of ions of 2.23 × 10<sup>−3</sup> S&#xa0;cm<sup>−1</sup> at room temperature (RT), and an electrochemical window of 4.8&#xa0;V. Additionally, it demonstrates an electrolyte uptake of approximately 256%, porosity around 57%, an activation energy of 0.20&#xa0;eV, and thermal shrinking at approximately 250&#xa0;℃. These results highlight that adding 20&#xa0;Wt% Nb<sub>2</sub>O<sub>5</sub> to polyacrylonitrile (PAN), cellulose (CA), and LiTFSI is a viable way to improve the electrochemical characteristics of CPEs, making them ideal for applications in energy production.</p>

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Nb2O5 nanofibres enhanced polyacrylonitrile (PAN)/cellulose (CA)/LiTFSI based on composite polymer electrolytes (CPEs) for energy storage applications

  • 期刊论文

  • 发表日期：

    2025年9月12日

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  • Mohan Jagan,
  • Aravinth Dhanasekaran,
  • Subalakshmi Pragalathan,
  • V. Velmurugan,
  • S. P. Vijayachamundeeswari

摘要

The advancement of structural energy storage materials is essential for optimising the lightweight design and spatial efficiency of electric automobiles and flying machines. Nonetheless, the utilisation of a structural electrolyte appropriate for structural stability electrical appliances is infrequently observed. The composite solid polymer electrolyte (CSPEs) utilising polyacrylonitrile (PAN)/cellulose (CA)/LiTFSI as the polymer matrix and Nb2O5 as reinforcement fillers exhibits a lithium-ion transference number of (Li+) 0.91, a conductivity of ions of 2.23 × 10−3 S cm−1 at room temperature (RT), and an electrochemical window of 4.8 V. Additionally, it demonstrates an electrolyte uptake of approximately 256%, porosity around 57%, an activation energy of 0.20 eV, and thermal shrinking at approximately 250 ℃. These results highlight that adding 20 Wt% Nb2O5 to polyacrylonitrile (PAN), cellulose (CA), and LiTFSI is a viable way to improve the electrochemical characteristics of CPEs, making them ideal for applications in energy production.