Journal
NANO ENERGY
Volume 67, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.nanoen.2019.104235
Keywords
Biomechanical energy; Nanogenerator; Wearable electronics; Body area network; Personalized health care
Categories
Funding
- National Natural Science Foundation of China [61801403]
- Independent Research Project of State Key Laboratory of Traction Power [2017TPL_Z04]
- Miaozi Project of Sichuan province
- Fundamental Research Funds for the Central Universities of China [2682017CX071]
- Henry Samueli School of Engineering AMP
- Applied Science at the University of California, Los Angeles
- Department of Bioengineering at the University of California, Los Angeles
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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.
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