Developing sustainable fibre supercapacitors using 2D materials and natural biopolymers

使用二维材料和天然生物聚合物开发可持续纤维超级电容器

• 批准号: EP/Y023439/1
• 负责人: Neeraj Kumar
• 金额: $ 25.55万
• 依托单位: Newcastle University
• 依托单位国家: 英国
• 项目类别: Fellowship
• 财政年份: 2023
• 资助国家: 英国
• 起止时间: 2023 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FY023439%2F1
• 关键词: Developing; sustainable; fibre; supercapacitors; using

Flexible supercapacitor are promising devices to power flexible and wearable electronics (flexible displays, foldable touch screens, smart gadgets, implantable medical devices, and flexible sensors) because of their lightweight, robust mechanical flexibility, small volume, fast charge/discharge rate, high specific capacitance, and power density. However, improving volumetric capacitance, energy density, output voltage, electrode performance under mechanical deformations while reducing the production cost and using eco-friendly materials remain challenging. The conventional sandwiched design of supercapacitor devices is also outdated and needs to be replaced by more effective designs such as interdigitated electrodes using flexible fibre electrodes. Additionally, flexible and wearable electronics are destined to be worn onto the skin, emphasising safety as a critical factor for such devices. This project aims to develop an innovative fabrication strategy for the production of sustainable fibre supercapacitors by introducing bio-derived material fibre electrodes, electrolytes, and separators. Emerging two-dimensional (2D) materials, such as MXenes, siloxene, 2D metal boride, borophene, and 2D ammonium metal phosphates, and their hybrids, will be integrated into biopolymers to induce electrical conductivity, mechanical toughness, charge storage sites, and electrochemical properties. The proposal will help to bridge the gap between conceptual and mechanistic approaches to sustainable fibre supercapacitors by establishing links between structures, compositions, fibre processing, and properties of 2D materials-based biopolymer fibre electrodes. This project will produce novel sustainable fibre supercapacitors with high performance and output voltage, while maintaining mechanical flexibility. Furthermore, it will contribute to the competitiveness of the EU/UK towards the net zero and energy sustainability target by developing sustainable and green fibre supercapacitors.

灵活的超级电容器是有前途的设备，可为柔性和可穿戴电子设备（柔性显示器，可折叠触摸屏，智能小工具，可植入的医疗设备和柔性传感器），因为它们具有轻巧，健壮的机械灵活性，较小的机械柔韧性，较小的体积，快速电荷/放电速率，高特定的电容速度和功率密度。但是，在机械变形下提高体积电容，能量密度，输出电压，电极性能，同时降低生产成本并使用环保材料仍然具有挑战性。超级电容器设备的常规夹层设计也已过时，需要用更有效的设计（例如使用柔性纤维电极互插的电极）代替。此外，柔性和可穿戴的电子设备注定要磨损到皮肤上，强调安全性是此类设备的关键因素。该项目旨在通过引入生物衍生的材料纤维电极，电解质和分离器来制定一种创新的制造策略，以生产可持续纤维超级电容器。出现的二维（2D）材料，例如MXENES，SILOXENE，2D金属硼化物，硼苯和2D金属磷酸铵及其杂种，将集成到生物聚合物中，以诱导电导率，机械韧性，电荷存储位点以及电化学性质。该提案将通过建立结构，组成，纤维加工和2D基于2D材料的基于2D材料的生物聚合物纤维电极之间的联系，来帮助弥合可持续纤维超电容器的概念和机械方法之间的差距。该项目将生产具有高性能和输出电压的新型可持续纤维超级电容器，同时保持机械柔韧性。此外，它将通过开发可持续和绿色纤维超级电容器来促进欧盟/英国对净零和能源可持续性目标的竞争力。