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The influence of fabrication parameters on the electrochemical performance of multifunctional structural supercapacitors
Multifunctional Materials Pub Date : 2021-08-31 , DOI: 10.1088/2399-7532/ac1ea6
Guocheng Qi 1 , Sang Nguyen 1 , David B Anthony 2 , Anthony R J Kucernak 2 , Milo S P Shaffer 2, 3 , Emile S Greenhalgh 1
Affiliation  

Multifunctional structural supercapacitors based on carbon fibre electrodes (CF) and structural electrolytes (SEs) can realise multifunctionality by simultaneously bearing load and providing electrochemical energy storage. Structural supercapacitor constituents (i.e. electrodes and electrolytes) have undergone significant development to enhance their electrochemical and mechanical properties. However, the fabrication of fully functional devices presents a number of practical challenges to achieve optimal multifunctional properties, particularly those associated with assembly and lamination. This work investigated the effect of separator selection and processing parameters on the electrochemical performance of structural supercapacitors, as well as evaluating the repeatability of the SE filming process. Two layers of glass fibre fabrics were the most effective separator for preventing short-circuiting of the structural supercapacitors. The weight fraction of the SE matrix had a significant effect on the capacitance, energy and power of the structural supercapacitors. By addressing such fabrication challenges, high performance structural supercapacitors can be manufactured with greater reproducibility and at larger scales such that they are suitable for integration in industrial applications.



中文翻译:

制备参数对多功能结构超级电容器电化学性能的影响

基于碳纤维电极(CF)和结构电解质(SEs)的多功能结构超级电容器可以通过同时承载负载和提供电化学储能来实现多功能性。结构超级电容器成分(即电极和电解质)已经经历了显着的发展,以提高它们的电化学和机械性能。然而,全功能器件的制造提出了许多实际挑战,以实现最佳的多功能特性,尤其是与组装和层压相关的特性。这项工作研究了隔膜选择和工艺参数对结构超级电容器电化学性能的影响,并评估了 SE 成膜过程的可重复性。两层玻璃纤维织物是防止结构超级电容器短路的最有效隔板。SE矩阵的重量分数对结构超级电容器的电容、能量和功率有显着影响。通过解决此类制造挑战,高性能结构超级电容器可以以更高的重现性和更大的规模制造,从而适合集成到工业应用中。

更新日期:2021-08-31
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