Journal
NANO ENERGY
Volume 47, Issue -, Pages 74-80Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.nanoen.2018.02.039
Keywords
Whirligig; Triboelectric nanogenerator; Portable; Medical monitoring systems
Categories
Funding
- NSFC [51572040, 51772036]
- Chongqing University Postgraduates' Innovation Project [CYB17044]
- National High Technology Research and Development Program (863 program) of China [2015AA034801]
- NSFCQ [cstc2015jcyjA20020]
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With lightweight, high energy conversion and low cost, the triboelectric nanogenerators (TENGs) have presented its tremendous potential as a portable sustainable power source to small-scale portable/wearable electronic device. However, the insufficient output power of TENG is a bottleneck for its practical applications. Here, we report an ultrahigh output power, a whirligig-inspired TENG (Wi-TENG) designed according to an antiqueue whirligig toy that is capable of converting low-frequency pulling motion into a high-frequency rotation. It shows that the rotor in the Wi-TENG achieves a maximum speed of 11,250 rpm. Ultrahigh charge transfer quantity of similar to 310 mu C and output power of 40.18 mW are obtained by per pulling of Wi-TENG. Moreover, a maximum short-circuit current of 317 mu A and a constant open-circuit voltage peak value of 153 V can be generated by the Wi-TENG, which can rapidly charge a commercial capacitance (100 mu F) to similar to 14 V within 10 s. After power management, this Wi-TENG is successfully demonstrated as a portable sustainable power source for driving a commercial blood glucose meter or a temperature-humidity sensor. This study presents the potential of Wi-TENG as a reliable portable instant power supply for personal health monitoring devices.
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