Yong Sheng, Hillier Nicholas, Beeby Stephen Paul
Smart Electronic Materials & System Research Group, School of Electronics and Computer Science, University of Southampton, Southampton SO17 1BJ, UK.
Energy Storage and Its Applications Centre of Doctoral Training, University of Southampton, Southampton SO17 1BJ, UK.
Polymers (Basel). 2022 Aug 19;14(16):3399. doi: 10.3390/polym14163399.
This paper presents a universal fabrication process for single-layer textile supercapacitors, independent of textile properties such as weave pattern, thickness and material. To achieve this, an engineered copolymer membrane was fabricated within these textiles with an automated screen printing, phase inversion and vacuum curing process. This membrane, together with the textile yarns, acts as a porous, flexible and mechanically durable separator. This process was applied to four textiles, including polyester, two polyester-cottons and silk. Carbon-based electrodes were subsequently deposited onto both sides of the textile to form the textile supercapacitors. These supercapacitors achieved a range of areal capacitances between 3.12 and 38.2 mF·cm, with energy densities between 0.279 and 0.681 mWh·cm with average power densities of between 0.334 and 0.32 W·cm. This novel membrane facilitates the use of thinner textiles for single-layered textile supercapacitors without significantly sacrificing electrochemical performance and will enable future high energy density textile energy storage, from supercapacitors to batteries.
本文介绍了一种用于单层纺织超级电容器的通用制造工艺，该工艺与织物特性（如编织图案、厚度和材料）无关。为此，通过自动丝网印刷、相转化和真空固化工艺在这些织物内部制造了一种工程共聚物膜。该膜与纺织纱线一起，充当多孔、柔性且机械耐用的隔膜。此工艺应用于四种织物，包括聚酯、两种涤棉和丝绸。随后将碳基电极沉积在织物两侧以形成纺织超级电容器。这些超级电容器的面电容范围为3.12至38.2 mF·cm，能量密度在0.279至0.681 mWh·cm之间，平均功率密度在0.334至0.32 W·cm之间。这种新型膜有助于在不显著牺牲电化学性能的情况下，使用更薄的织物来制造单层纺织超级电容器，并将推动未来从超级电容器到电池的高能量密度纺织储能发展。
