Henriques João Tiago, do Carmo Catarina Cidade, Marques Ana, Ferreira Isabel M M, Baptista Ana Catarina
CENIMAT|i3N, Department of Materials Science, School of Science and Technology, NOVA University Lisbon, Caparica 2829-516, Portugal.
Physics Department, Faculty of Sciences, University of Lisbon, Lisbon 1749-016, Portugal.
ACS Appl Eng Mater. 2024 Feb 2;2(2):415-421. doi: 10.1021/acsaenm.3c00723. eCollection 2024 Feb 23.
Technological solutions for emerging e-textiles are being sought to enable e-wear technology to be self-sustaining and lightweight. A rippling 1D carbon fiber capacitor design was made with commercial carbon threads as electrodes using simulated sweat solution as the electrolyte. This is particularly relevant for potential sports textile applications in which sweat could serve as an electrochemical energy source. An electrospun cellulose acetate fiber membrane and a commercially available felt were used as separators capable of soaking the electrolyte. These were tested in braided and woven electrode configurations, respectively. Functionalizing the carbon wires with polypyrrole (PPy) enhanced the surface area and significantly increased the specific capacity by approximately an order of magnitude (0.62 F/g). Cyclic voltammetry and charge-discharge tests confirmed the washability and durability of the devices for at least 1000 cycles.
人们正在寻找新兴电子纺织品的技术解决方案，以使电子穿戴技术能够自我维持且重量轻。采用商业碳线作为电极，模拟汗液溶液作为电解质，设计了一种波纹状一维碳纤维电容器。这对于潜在的运动纺织应用尤为重要，在这些应用中，汗液可作为电化学能源。使用电纺醋酸纤维素纤维膜和市售毛毡作为能够浸泡电解质的隔膜。分别在编织和织造电极配置中对它们进行了测试。用聚吡咯（PPy）对碳线进行功能化处理增加了表面积，并使比容量显著提高了约一个数量级（0.62 F/g）。循环伏安法和充放电测试证实了该装置至少在1000次循环中的可清洗性和耐用性。
