A Highly Stretchable and Washable All-Yarn-Based Self-Charging Knitting Power Textile Composed of Fiber Triboelectric Nanogenerators and Supercapacitors
A Highly Stretchable and Washable All-Yarn-Based Self-Charging Knitting Power Textile Composed of Fiber Triboelectric Nanogenerators and Supercapacitors
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DOI：
10.1021/acsnano.7b05317
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发表时间：
2017-09-01
期刊：
影响因子：
17.1
通讯作者：
Wang, Zhong Lin
中科院分区：
文献类型：
--
作者：
Dong, Kai;Wang, Yi-Cheng;Wang, Zhong Lin
可拉伸和多功能可穿戴电子产品的快速发展对相应的功率设备提出了挑战，即它们应该具有相当的便携性和可拉伸性。在这里，我们报告了一种高度可拉伸和可洗涤的基于全纱线的自充电针织动力纺织品，通过将摩擦纳米发电机（TENG）和超级电容器（SC）混合到一种织物中，可以实现生物力学能量收集和同时能量存储。采用纬编技术，使动力纺织品具有高弹性、高柔韧性、高拉伸性，能适应复杂的机械变形。该针织TENG织物能够产生具有类似于85 mW中心点m（-2）的最大瞬时峰值功率密度的电能，并且点亮至少124个发光二极管。全固态对称纱线SC具有重量轻、电容好、柔韧性高、机械稳定性和长期稳定性好等特点，适用于可穿戴储能装置。组装的针织动力纺织品能够利用从人体运动转换的能量可持续地驱动可穿戴电子设备（例如，计算器或温度-湿度计）。我们的工作为可伸缩多功能电源和可穿戴电子产品的潜在应用提供了更多的机会。
Rapid advancements in stretchable and multifunctional wearable electronics impose a challenge on corresponding power devices that they should have comparable portability and stretchability. Here, we report a highly stretchable and washable all-yarn-based self-charging knitting power textile that enables both biomechanical energy harvesting and simultaneously energy storing by hybridizing triboelectrical nanogenerator (TENG) and supercapacitor (SC) into one fabric. With the weft-knitting technique, the power textile is qualified with high elasticity, flexibility, and stretchability, which can adapt to complex mechanical deformations. The knitting TENG fabric is able to generate electric energy with a maximum instantaneous peak power density of similar to 85 mW center dot m(-2) and light up at least 124 light-emitting diodes. The all-solid-state symmetrical yarn SC exhibits lightweight, good capacitance, high flexibility, and excellent mechanical and long-term stability, which is suitable for wearable energy storage devices. The assembled knitting power textile is capable of sustainably driving wearable electronics (for example, a calculator or temperature-humidity meter) with energy converted from human motions. Our work provides more opportunities for stretchable multifunctional power sources and potential applications in wearable electronics.