Abstract

Flexible supercapacitors are important energy storage devices used for wearable and smart electronics. Various flexible supercapacitors have been prepared, including fiber supercapacitors, paper-like supercapacitors, three-dimensional aerogel materials based supercapacitors and textile supercapacitors. During them, fiber supercapacitors can be utilized in micro-devices, while textile supercapacitors are suitable for large-sized energy storage. To fabricate the flexible supercapacitors, the key lies in the acquirement of flexible electrodes, e.g., flexible fiber electrodes and textile electrodes. In this text, an effective strategy was proposed for the simultaneous productions of high-performance flexible textile electrodes and fiber electrodes. The prepared textile electrodes are textile/CNTs and textile/MnO2/CNTs composite textiles. During them, textile/MnO2/CNTs textile electrode/supercapacitor displays outstanding areal capacitances up to 3 F cm-2 and energy densities, and highly conductive textile is suitable for fabricating thicker electrode for supercapacitors with the high power. Scalable preparation of fiber electrodes was easily realized by dismantling textiles. In addition, the textile electrodes and fiber electrodes possess a long operation life and outstanding flexibility. Electrochemical properties of the electrodes may be further improved by optimization of MnO2, CNTs and polymers on the textiles. Despite of this, the present work is promising to promote the development of flexible electrodes and flexible energy storage devices.ercapacitors.[1-4] Reference [1] L. Dong, C. Xu*, et al. Adv Mater, 2016, 28, 1675. [2] L. Dong, C. Xu*, et al. J Mater Chem A, 2015, 3, 4729. [3] L. Dong, C. Xu*, et al. J Mater Chem A, 2016, 4, 4659. [4] L. Dong, C. Xu*, et al. Carbon, 2015, 90, 164 Acknowledgements: We thank the financial surppots from NSFC, 973, and Shenzhen Technical Plan Projects.

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