Graduate School at Shenzhen , Tsinghua University , Shenzhen 518055 , China.
School of Materials Science and Engineering , Tsinghua University , Beijing 100084 , China.
ACS Appl Mater Interfaces. 2018 Apr 4;10(13):10851-10859. doi: 10.1021/acsami.7b19195. Epub 2018 Mar 20.
Polymorphous supercapacitors were constructed from flexible three-dimensional carbon network/polyaniline (PANI)/MnO composite textile electrodes. The flexible textile electrodes were fabricated through a layer-by-layer construction strategy: PANI, carbon nanotubes (CNTs), and MnO were deposited on activated carbon fiber cloth (ACFC) in turn through an electropolymerization process, "dipping and drying" method, and in situ chemical reaction, respectively. In the fabricated ACFC/PANI/CNTs/MnO textile electrodes, the ACFC/CNT hybrid framework serves as a porous and electrically conductive 3D network for the rapid transmission of electrons and electrolyte ions, where ACFC, PANI, and MnO are high-performance supercapacitor electrode materials. In the electrolyte of HSO solution, the textile electrode-based symmetric supercapacitor delivers superior areal capacitance, energy density, and power density of 4615 mF cm (for single electrode), 157 μW h cm, and 10372 μW cm, respectively, whereas asymmetric supercapacitor assembled with the prepared composite textile as the positive electrode and ACFC as the negative electrode exhibits an improved energy density of 413 μW h cm and a power density of 16120 μW cm. On the basis of the ACFC/PANI/CNTs/MnO textile electrodes, symmetric and asymmetric solid-state textile supercapacitors with a PVA/HSO gel electrolyte were also produced. These solid-state textile supercapacitors exhibit good electrochemical performance and high flexibility. Furthermore, flexible solid-state fiber-like supercapacitors were prepared with fiber bundle electrodes dismantled from the above composite textiles. Overall, this work makes a meaningful exploration of the versatile applications of textile electrodes to produce polymorphous supercapacitors.
多孔超级电容器由柔性三维碳网络/聚苯胺（PANI）/MnO 复合材料纺织电极构建而成。柔性纺织电极通过逐层构建策略制造：通过电聚合过程、“浸渍和干燥”方法以及原位化学反应，依次将 PANI、碳纳米管（CNTs）和 MnO 沉积在活性炭纤维布（ACFC）上。在制造的 ACFC/PANI/CNTs/MnO 纺织电极中，ACFC/CNT 混合框架作为多孔和导电的 3D 网络，用于快速传输电子和电解质离子，其中 ACFC、PANI 和 MnO 是高性能超级电容器电极材料。在 HSO 溶液的电解质中，基于纺织电极的对称超级电容器提供了卓越的面电容、能量密度和功率密度，分别为 4615 mF cm（单个电极）、157 μW h cm 和 10372 μW cm，而由制备的复合纺织材料作为正极和 ACFC 作为负极组装的不对称超级电容器表现出提高的能量密度 413 μW h cm 和功率密度 16120 μW cm。基于 ACFC/PANI/CNTs/MnO 纺织电极，还制备了具有 PVA/HSO 凝胶电解质的对称和不对称固态纺织超级电容器。这些固态纺织超级电容器表现出良好的电化学性能和高柔韧性。此外，还使用从上述复合纺织品上拆卸的纤维束电极制备了柔性固态纤维状超级电容器。总的来说，这项工作对纺织电极在生产多相超级电容器方面的多种应用进行了有意义的探索。
