Exploring the microstructural properties of hydroxypropyl-methylcellulose-based solid polymer electrolytes: a promising candidate for flexible electrical double-layer capacitor

IF 3.6 4区化学 Q2 POLYMER SCIENCE

Polymer International Pub Date : 2025-07-02 DOI:10.1002/pi.70001

Jayalakshmi Koliyoor, Shreeganesh Subraya Hegde, Ismayil, Badekai Ramachandra Bhat

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Abstract

This study investigates the development and characterization of solid polymer electrolytes based on hydroxypropyl methylcellulose (HPMC) for magnesium ion transport. Electrolyte films were prepared using a conventional solution casting technique, incorporating HPMC and magnesium acetate. Fourier transform infrared (FTIR) spectroscopy and XRD analyses were conducted to examine the interactions between the polymer and salt components. Impedance spectroscopy was employed to assess the electrical conductivity of the prepared electrolytes. Thermal stability was evaluated using TGA. The FTIR and XRD results indicated the formation of a complex between the polymer and salt. The electrolyte containing 30 wt% magnesium acetate exhibited a room temperature ionic conductivity of 5.88 × 10⁻⁴ S cm⁻¹, demonstrating enhanced electrical properties. An electrical double-layer capacitor was fabricated using this high-conductivity electrolyte, and its electrochemical performance was analysed. © 2025 The Author(s). Polymer International published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.

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探索羟丙基甲基纤维素基固体聚合物电解质的微观结构特性：一种有前途的柔性电双层电容器

本文研究了基于羟丙基甲基纤维素（HPMC）的镁离子传输固体聚合物电解质的研制与表征。以HPMC和醋酸镁为原料，采用传统的溶液铸造工艺制备了电解质膜。傅里叶红外光谱（FTIR）和x射线衍射（XRD）分析了聚合物与盐组分之间的相互作用。采用阻抗谱法对制备的电解质的电导率进行了测定。热稳定性评价采用热重分析仪。红外光谱（FTIR）和x射线衍射（XRD）结果表明，聚合物与盐之间形成了络合物。含有30 wt%醋酸镁的电解质室温离子电导率为5.88 × 10−4 S cm−1，电性能得到增强。利用该高导电性电解液制备了双层电电容器，并对其电化学性能进行了分析。©2025作者。《聚合物国际》由John Wiley &； Sons Ltd代表化学工业协会出版。

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来源期刊

Polymer International 化学-高分子科学

CiteScore

7.10

自引率

3.10%

发文量

135

审稿时长

4.3 months

期刊介绍： Polymer International (PI) publishes the most significant advances in macromolecular science and technology. PI especially welcomes research papers that address applications that fall within the broad headings Energy and Electronics, Biomedical Studies, and Water, Environment and Sustainability. The Journal’s editors have identified these as the major challenges facing polymer scientists worldwide. The Journal also publishes invited Review, Mini-review and Perspective papers that address these challenges and others that may be of growing or future relevance to polymer scientists and engineers.