期刊
ACS NANO
卷 11, 期 8, 页码 8370-8378出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsnano.7b03683
关键词
triboelectric nanogenerator; electromagnetic generator; hybrid nanogenerator; impedance match; mechanical energy
类别
资金
- National Key R&D Project from the Minister of Science and Technology, China [2016YFA0202702]
- Natural Science. Foundation of China (NSFC) [21274006, 51503005]
- Programs for Beijing Science and Technology Leading Talent [Z16111000490000]
- Thousands Talents Program for Pioneer Researcher and His Innovation Team, China
Currently, a triboelectric nanogenerator (TENG) and an electromagnetic generator (EMG) have been hybridized to effectively scavenge mechanical energy. However, one critical issue of the hybrid device is the limited output power due to the mismatched output impedance between the two generators. In this work, impedance matching between the TENG and EMG is achieved facilely through commercial transformers, and we put forward a highly integrated hybrid device. The rotatingsleeve triboelectric electromagnetic hybrid nanogenerator (RSHG) is designed by simulating the structure of a common EMG, which ensures a high efficiency in transferring ambient mechanical energy into electric power. The RSHG presents an excellent performance with a short-circuit current of 1 mA and open-circuit voltage of 48 V at a rotation speed of 250 rpm. Systematic measurements demonstrate that the hybrid nanogenerator can deliver the largest output power of 13 mW at a loading resistance of 8 k Omega. Moreover, it is demonstrated that a wind-driven RSHG can light dozens of light-emitting diodes and power an electric watch. The distinctive structure and high output performance promise the practical application of this rotating-sleeve structured hybrid nanogenerator for large-scale energy conversion.
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