期刊
ADVANCED ENERGY MATERIALS
卷 10, 期 22, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/aenm.202000627
关键词
controllable output performance; mechanical regulation; random excitation; triboelectric nanogenerators; wave energy harvesting
类别
资金
- National Key R&D Project from the Minister of Science and Technology [2016YFA0202704]
- Beijing Municipal Science and Technology Commission [Z171100002017017]
- National Natural Science Foundation of China [51775130]
Recycling of random mechanical energy in the environment has become an important research hotspot. The triboelectric nanogenerators (TENGs) were invented to harvest energy, and have been widely applied due to their simple structure, small size, and low cost. This paper reports a mechanical regulation triboelectric nanogenerator (MR-TENG) for the first time with controllable output performance used to harvest random or irregular energy in the environment. It comprises a transmission unit, switch structure, generator unit, flywheel, and shell. Random linear motion or rocking motion is transferred via the transmission unit to the flywheel. The rotor of the generator unit fixed on the flywheel and the stator of the generator unit fixed on the shell combine. By controlling the storage and release of energy in the flywheel, the switch structure assists the flywheel to convert random or irregular energy into a controllable and stable energy output. The MR-TENG can generate an open-circuit voltage of 350 V, a short-circuit current of 12 mu A, a transfer charge of 130 nC, and a peak power of 2.52 mW. Furthermore, a thermometer and more than 300 light emitting diodes (LEDs) are separately powered by this MR-TENG in simulated water waves, demonstrating its potential application in water wave energy harvesting.
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