Highly flexible and compliant textile-based electrodes are of considerable interest for the next generation of wearable devices. Engineering interconnected electron transport channels in the insulating textile substrate without any detriment to its intrinsic porous structure, flexibility, and stability generally is a great challenge in developing the high-performance devices. Herein, a strategy to prepare a highly conductive textile by electrostatic self-assembly between positively charged polyester fabric modified with polyethyleneimine (PEI) and negatively charged titanium carbide MXene flakes is presented. The densified, horizontally aligned MXene flakes are painted on the fabric fibers with a low mass loading of 0.8 ​mg ​cm⁻². They not only form intergral layers of conductive skin, which can be easily charged/discharged at 10 ​V ​s⁻¹, but also create numerous active sites for further introducing functional electrochemical materials due to the surface chemistry of the MXene. As a proof-of-concept application, the conductive textile is combined with conformally coated polypyrrole (PPy) and used as a supercapacitor electrode, which has demonstrated large areal capacitance, high rate performance, and outstanding cycling stability without compromising its mechanical endurance. These features suggest the great potential of the as-prepared electrodes and open up a new avenue for the development of a new generation of textile electrode for the smart textile industry.

下一代可穿戴设备对高度灵活且柔顺的基于纺织品的电极非常感兴趣。在不影响其固有的多孔结构，柔韧性和稳定性的情况下，在绝缘的纺织品基材中工程互连的电子传输通道通常是开发高性能器件的巨大挑战。本文提出了一种通过在聚乙烯亚胺（PEI）改性的带正电的聚酯织物和带负电的碳化钛MXene薄片之间进行静电自组装来制备高导电性纺织品的策略。将致密的，水平排列的MXene薄片涂在织物纤维上，质量负载为0.8毫克厘米^-2。它们不仅形成导电皮肤的中间层，可以容易地在10 V s ^-1下充电/放电，而且由于MXene的表面化学性质，还创建了许多活性位点以进一步引入功能性电化学材料。作为概念验证的应用，导电纺织品与保形涂层的聚吡咯（PPy）结合使用，并用作超级电容器电极，在不影响其机械耐久性的情况下，该电容器已显示出大的面电容，高倍率性能和出色的循环稳定性。这些特征表明了所制备电极的巨大潜力，并为智能纺织工业开发新一代纺织电极开辟了新途径。