A linear-to-rotary hybrid nanogenerator for high-performance wearable biomechanical energy harvesting
A linear-to-rotary hybrid nanogenerator for high-performance wearable biomechanical energy harvesting
复制标题
用于高性能可穿戴生物力学能量收集的线性旋转混合纳米发电机
DOI：
10.1016/j.nanoen.2019.104235
复制
发表时间：
2020-01-01
期刊：
影响因子：
17.6
通讯作者：
Chen, Jun
中科院分区：
文献类型：
--
作者：
Yan, Cheng;Gao, Yuyu;Chen, Jun
从低频人体运动中获取生物力学能量是一种具有挑战性但有前途的方法，可以为未来的可穿戴设备提供动力。在此，我们报告了一种线性旋转混合纳米发电机（LRH-NG），通过频率增强策略有效地收集低频身体生物力学能量。值得注意的是，由人体运动产生的LRH-NG产生的电流和电压分别增强到基频（2 Hz）下的3.1倍和3.6倍。此外，LRH-NG被证明是一种身体发电机，可以通过温度传感器和湿度传感器为身体区域网络提供可持续的电力，用于个性化的医疗保健。所设计的LRH-NG可能为高性能低频可穿戴生物力学能量收集开辟新途径，作为物联网时代可持续和普及的能源解决方案。
Harvesting biomechanical energy from low-frequency human body motions is a challenging but promising approach to powering the future wearables. Herein, we report a linear-to-rotary hybrid nanogenerator (LRH-NG) to effectively harvest low-frequency body biomechanical energy via a frequency enhancement strategy. Remarkably, the generated current and voltage by the LRH-NG from human body movement are respectively enhanced up to 3.1 times and 3.6 times of that at the basic frequency (2 Hz). Furthermore, the LRH-NG was demonstrated as an on-body electricity generator that can sustainably power a body area network with a temperature sensor and a humidity sensor for personalized health care. The designed LRH-NG may open up a new approach for high-performance low-frequency wearable biomechanical energy harvesting as a sustainable and pervasive energy solution in the era of the Internet of things.