Benefited from the continuous development of nanomaterials, wearable microelectronics with flexible and miniaturized features are booming, and smart textiles are attracting more attentions because of their superior flexibility and perfect safety. The combination of conductive polymers and flexible substrates has created a new field for flexible supercapacitors. Herein, cotton cloth (CC), which is commonly used in daily life, was selected as the flexible substrate and a layer of CQDs was uniformly grown on the CC fibers, and then pyrrole was directly grown on CC by in-situ polymerization under Fe initiation to realize the tight bonding between the conductive polymer and the flexible substrate. The electrochemical properties of the composite electrode could be controlled by changing the amount of CQD. The obtained CC@CQD@PPy electrode has a high specific capacitance () of 537.9 F/g at 0.5 A/g. The assembled symmetric CC@CQD@PPy supercapacitor exhibits an excellent energy density () of 18.7 Wh/kg at a power density () of 125.0 W/kg, and a supreme cycling stability with a capacitance retention of 77.9 % after 10,000 cycles. In addition, the CC@CQD@PPy supercapacitor has excellent flexibility, with almost unchanged electrochemical performance under different bending angles, and the assembled all-solid-state supercapacitor has good electrochemical properties.

中文翻译：

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CQD/PPy 在棉布上的生长作为对称超级电容器的无粘合剂高性能柔性电极

受益于纳米材料的不断发展，具有柔性、小型化特点的可穿戴微电子蓬勃发展，智能纺织品也因其优越的灵活性和完美的安全性而受到越来越多的关注。导电聚合物与柔性基板的结合开创了柔性超级电容器的新领域。本文选择日常生活中常用的棉布（CC）作为柔性基材，在CC纤维上均匀生长一层CQD，然后通过Fe下原位聚合在CC上直接生长吡咯。引发，实现导电聚合物与柔性基板之间的紧密结合。复合电极的电化学性能可以通过改变CQD的量来控制。所得CC@CQD@PPy电极在0.5 A/g下具有537.9 F/g的高比电容()。组装的对称CC@CQD@PPy超级电容器在功率密度()为125.0 W/kg时表现出优异的能量密度()为18.7 Wh/kg，并且具有最高的循环稳定性，在10,000次循环后电容保持率为77.9%。此外，CC@CQD@PPy超级电容器具有优异的柔韧性，在不同弯曲角度下电化学性能几乎不变，且组装的全固态超级电容器具有良好的电化学性能。