纳米发生器
摩擦电效应
能量收集
可穿戴计算机
数码产品
材料科学
噪音(视频)
电池(电)
可穿戴技术
电气工程
功率(物理)
计算机科学
工程类
压电
嵌入式系统
物理
图像(数学)
人工智能
复合材料
量子力学
作者
Shi-Peng Zhang,Trilochan Bhatta,SM Sohel Rana,Kumar Shrestha,Gagan Bahadur Pradhan,Sudeep Sharma,Seonghoon Jeong,Hong Seok Kim,Jae Yeong Park
出处
期刊:Nano Energy
[Elsevier]
日期:2024-02-01
卷期号:120: 109179-109179
被引量:3
标识
DOI:10.1016/j.nanoen.2023.109179
摘要
The rapid growth of portable and wearable electronics demands innovative battery solutions that are both sustainable and eco-friendly. Biomechanical energy-harvesting technology is a promising approach for operating wearable electronic devices without battery dependence. In this study, a novel noise-less hybrid nanogenerator (NLHN) was developed using 3D-printed elastic resin springs and burr-shaped water-based polyurethane (water-based PU: WPU)@Siloxene nanocomposite to effectively harvest low-frequency biomechanical energy from various human movements without generating any physical noise. By rationally integrating electromagnetic generators with triboelectric nanogenerators in a sliding mode and two contact modes, the proposed NLHN exhibited excellent output performance under random low-frequency and wide-range vibrational excitations. The WPU@Siloxene was first introduced as a highly flexible positive triboelectric layer and a noise suppressor during the sliding mode operation, while elastic resin springs significantly improved the energy harvesting performance thereby suppressing the physical noise during contact-separation. The NLHN exhibited an optimal output power of 101 mW at 6 Hz and 1.5 g acceleration. Moreover, the NLHN suppressed operating noise to only 41 dB during operation and maintained a stable output performance after 50,000 cycles. The NLHN was demonstrated to function as a continuous power source for powering portable and wearable electronics, such as smart bracelets and smartphones as well as battery-free wearable ECG monitoring systems. Conclusively, the proposed NLHN has substantial potential for silent biomechanical energy harvesting as a sustainable and eco-friendly power source for portable electronics and wearable healthcare sensing devices.
科研通智能强力驱动
Strongly Powered by AbleSci AI