A multifunctional solid-state electrolyte with high ionic conductivity based on Polyacrylic acid and Magnesium phosphate cement

IF 12.7 1区材料科学 Q1 ENGINEERING, MULTIDISCIPLINARY

Composites Part B: Engineering Pub Date : 2025-05-08 DOI:10.1016/j.compositesb.2025.112606

Xiangrui Meng , Meijia Liu , Mingzheng Zhu , Zhenzhen Liu , Liyan Wang , Bing Chen

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引用次数: 0

Abstract

This study introduces a approach to modify magnesium phosphate cement (MPC) using polyacrylic acid (PAA, ≤4 %) to create a composite solid electrolyte (PAA-NaCl-MPC). A comprehensive analysis of the composite's physical, mechanical, and electrochemical properties, as well as its hydration mechanism, was conducted to assess its suitability for energy storage applications. The abundance of carboxyl (—COOH) and hydroxyl (—OH) groups on the PAA backbone significantly enhances the composite's affinity for sodium ions, facilitating improved ion migration. Furthermore, the incorporation of PAA increases the porosity of MPC. These effects contribute to the PAA-NaCl-MPC composite solid electrolyte exhibiting exceptionally low bulk resistivity and remarkably high ionic conductivity, positioning it as a potential candidate for advanced energy storage materials. Notably, this study represents the first development of the PAA-MPC composite solid electrolyte system, which enhances the ionic conductivity of the composite and maintains relatively good mechanical properties. These findings underscore the considerable potential of PAA-NaCl-MPC for pioneering applications in the field of energy storage.

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基于聚丙烯酸和磷酸镁水泥的高离子电导率多功能固态电解质

本研究介绍了一种用聚丙烯酸（PAA,≤4%）对磷酸镁水泥（MPC）进行改性制备复合固体电解质（PAA- nacl -MPC）的方法。综合分析了该复合材料的物理、机械和电化学性能，以及水化机理，以评估其储能应用的适用性。PAA主链上丰富的羧基（-COOH）和羟基（-OH）基团显著增强了复合材料对钠离子的亲和力，促进了离子的迁移。此外，PAA的掺入增加了MPC的孔隙率。这些效应有助于PAA-NaCl-MPC复合固体电解质表现出极低的体积电阻率和非常高的离子电导率，使其成为先进储能材料的潜在候选者。值得注意的是，本研究代表了PAA-MPC复合固体电解质体系的首次发展，该体系增强了复合材料的离子电导率，并保持了相对良好的力学性能。这些发现强调了PAA-NaCl-MPC在储能领域开创性应用的巨大潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Composites Part B: Engineering 工程技术-材料科学：复合

CiteScore

24.40

自引率

11.50%

发文量

784

审稿时长

21 days

期刊介绍： Composites Part B: Engineering is a journal that publishes impactful research of high quality on composite materials. This research is supported by fundamental mechanics and materials science and engineering approaches. The targeted research can cover a wide range of length scales, ranging from nano to micro and meso, and even to the full product and structure level. The journal specifically focuses on engineering applications that involve high performance composites. These applications can range from low volume and high cost to high volume and low cost composite development. The main goal of the journal is to provide a platform for the prompt publication of original and high quality research. The emphasis is on design, development, modeling, validation, and manufacturing of engineering details and concepts. The journal welcomes both basic research papers and proposals for review articles. Authors are encouraged to address challenges across various application areas. These areas include, but are not limited to, aerospace, automotive, and other surface transportation. The journal also covers energy-related applications, with a focus on renewable energy. Other application areas include infrastructure, off-shore and maritime projects, health care technology, and recreational products.