Alloy coating from an ionic liquid on graphite filaments and knitted graphite fabrics for stretchable supercapacitor applications

IF 3.9 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY Materials Science and Engineering: B Pub Date : 2025-03-17 DOI:10.1016/j.mseb.2025.118227

Abdulcabbar Yavuz , Hüseyin Faal

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Abstract

The development of flexible and stretchable energy storage technologies has lagged behind advancements in flexible screens and sensors, despite their potential for wearable, biomedical, and portable devices. This study addresses this issue by knitting graphite filaments into a stretchable fabric, which is potentiostatically coated with a Mn-Cu alloy using an Ethaline Deep Eutectic Solvent composed solely cations and anions. The coated electrodes are tested in aqueous KOH, Na₂SO₄, and a mixture of the two electrolytes. Fourier-transform infrared spectroscopy and X-ray diffraction analyses confirmed the composition and structure of the electrodes. The Mn-Cu-coated graphite fabric demonstrates an areal capacitance of 9 F cm⁻² in the mixed electrolyte, highlighting its suitability for energy storage. Deposition conditions are shown to influence electrode performance by altering the material structure. This work establishes a promising approach to developing flexible and stretchable energy storage devices with broad surface coverage and enhanced functionality.

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尽管柔性和可拉伸储能技术在可穿戴设备、生物医学设备和便携式设备中具有潜力，但其发展一直落后于柔性屏幕和传感器的进步。本研究通过将石墨丝编织成可拉伸织物来解决这一问题，该织物使用完全由阳离子和阴离子组成的乙碱深共晶溶剂，在其表面静电涂覆锰铜合金。涂层电极在 KOH、Na2SO4 和这两种电解质的混合水溶液中进行了测试。傅立叶变换红外光谱和 X 射线衍射分析证实了电极的成分和结构。锰铜涂层石墨织物在混合电解质中的面积电容为 9 F cm-2，突出了其在能量存储方面的适用性。研究表明，沉积条件可通过改变材料结构影响电极性能。这项研究为开发具有广泛表面覆盖和增强功能的柔性可拉伸储能设备提供了一种可行的方法。

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来源期刊

Materials Science and Engineering: B 工程技术-材料科学：综合

CiteScore

5.60

自引率

2.80%

发文量

481

审稿时长

3.5 months

期刊介绍： The journal provides an international medium for the publication of theoretical and experimental studies and reviews related to the electronic, electrochemical, ionic, magnetic, optical, and biosensing properties of solid state materials in bulk, thin film and particulate forms. Papers dealing with synthesis, processing, characterization, structure, physical properties and computational aspects of nano-crystalline, crystalline, amorphous and glassy forms of ceramics, semiconductors, layered insertion compounds, low-dimensional compounds and systems, fast-ion conductors, polymers and dielectrics are viewed as suitable for publication. Articles focused on nano-structured aspects of these advanced solid-state materials will also be considered suitable.