With the rapid development of flexible electronic devices, yarn supercapacitors (YSCs) as one kind of flexible energy storage devices are attracting more and more attention. Carbon nanotube (CNT) and conductive polymers (CPs) are widely investigated as potential active materials in energy storage field. Herein, an all-solid-state YSC was successfully fabricated via spinning CNT-coated cotton roving and in-situ polymerization of pyrrole. The proposed YSC demonstrated an areal specific capacitance of 421 mF cm⁻² at a current density of 0.57 mA cm⁻² as well as superior cycling performance. Moreover, the proposed YSC was comparatively flexible, confirming it as a promising power source candidate for portable and wearable electronics.

随着柔性电子器件的快速发展，纱线超级电容器（YSCs）作为一种柔性储能器件越来越受到关注。碳纳米管（CNT）和导电聚合物（CPs）作为储能领域的潜在活性材料被广泛研究。在此，通过纺丝碳纳米管涂层棉粗纱和吡咯的原位聚合成功制备了全固态 YSC。所提出的 YSC在 0.57 mA cm ^-2的电流密度下表现出 421 mF cm ^-2的面积比电容以及优异的循环性能。此外，提议的 YSC 相对灵活，证实它是便携式和可穿戴电子产品的有前途的电源候选者。