4.8 Article

Frequency modulated hybrid nanogenerator for efficient water wave energy harvesting

期刊

NANO ENERGY
卷 102, 期 -, 页码 -

出版社

ELSEVIER
DOI: 10.1016/j.nanoen.2022.107669

关键词

Wave energy harvesting; TENG; EMG; PENG; Hybrid energy harvester; Frequency modulation

资金

  1. National Key Research and Development Program of China [2021YFA0716500]
  2. National Natural Science Foundation of China [52172135]
  3. Young Top Talent Project of the National Ten Thousand Talents Program [2021-527-07]
  4. Guangdong Basic and Applied Basic Research Foundation for Distinguished Young Scholars [2022B1515020070, 2021B1515020083]

向作者/读者索取更多资源

This paper introduces a triboelectric-electromagnetic-piezoelectric hybrid energy harvester for low frequency wave energy harvesting, which improves energy collection efficiency, achieves a high power density, and discusses the connection modes of different modules.
The energy crisis and environmental pollution are the two major challenges facing humanity, and harvesting energy from the ocean is a promising solution. In this paper, a triboelectric-electromagnetic-piezoelectric hybrid energy harvester (TEP-HEH) for low frequency wave energy harvesting is presented. With the introduction of the cantilever beam structure, the vibration frequency is converted from 0.2 Hz (simulated wave frequency) to 7.2 Hz, which greatly improves the energy harvesting performance of the electromagnetic generator (EMG) and the piezoelectric nanogenerator (PENG) modules. By broadening the frequency bandwidth of wave energy harvesting, a large power density of 5.73 W m  3 is obtained for the TEP-HEH. Besides, the output performance of TENG, EMG, and PENG modules is investigated and the connection mode of the three types of modules is discussed. The TEP-HEH can light up a commercial lighting bulb with a rated power of 5 W or power small electronics. This work provides an efficient solution for low frequency wave energy harvesting and the realization of the blue-energy dream.

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