High-Energy Asymmetric Supercapacitor Yarns for Self-Charging Power Textiles
High-Energy Asymmetric Supercapacitor Yarns for Self-Charging Power Textiles
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用于自充电电力纺织品的高能不对称超级电容器纱线
DOI：
10.1002/adfm.201806298
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发表时间：
2019-10-01
影响因子：
19
通讯作者：
Wang, Zhong Lin
中科院分区：
文献类型：
--
作者：
Liu, Mengmeng;Cong, Zifeng;Wang, Zhong Lin
电子纺织的快速发展增加了对纺织电源的需求，这些电源应该具有相当的轻量化、灵活性和舒适性。本文报道了一种由全纱基集能摩擦电纳米发电机(TENG)和储能纱线型非对称超级电容器(Y-ASC)相互交织而成的自充电纺织材料。Y-ASCS的一维集电体和TIGS的电极均采用具有共形Ni/Cu涂层的普通涤纶纱线。固态Y-ASC实现了高面能量密度(约78.1微瓦时厘米(-2))、高功率密度(14毫瓦厘米(-2))、稳定的循环性能(5000循环82.7%)和出色的柔韧性(1000循环180度弯曲)。Teng纱线可以编织成具有所需时尚设计的普通面料，从高输出(约60V开路电压和约3u A短路电流)的人类日常运动中获取能量。集成的自动充电POWER纺织品被展示为电子表提供动力，而无需其他电源的额外充电，这表明其在电子纺织品和可穿戴电子产品中具有广阔的应用前景。
Rapid growth of electronic textile increases the demand for textile-based power sources, which should have comparable lightweight, flexibility, and comfort. In this work, a self-charging power textile interwoven by all-yarn-based energy-harvesting triboelectric nanogenerators (TENG) and energy-storing yarn-type asymmetric supercapacitors (Y-ASC) is reported. Common polyester yarns with conformal Ni/Cu coating are utilized as 1D current collectors in Y-ASCs and electrodes in TENGs. The solid-state Y-ASC achieves high areal energy density (approximate to 78.1 mu Wh cm(-2)), high power density (14 mW cm(-2)), stable cycling performance (82.7% for 5000 cycles), and excellent flexibility (1000 cycles bending for 180 degrees). The TENG yarn can be woven into common fabrics with desired stylish designs to harvest energy from human daily motions at high output (approximate to 60 V open-circuit voltage and approximate to 3 mu A short-circuit current). The integrated self-charging power textile is demonstrated to power an electronic watch without extra recharging by other power sources, suggesting its promising applications in electronic textiles and wearable electronics.