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Peer-reviewedCC BY 4.0Advanced Science

High‐Power Hybrid Nanogenerator With Multi‐Degree‐of‐Freedom Mechanical Coupling for Harvesting Water Wave Energy

  • Shuai Ding1,2
  • Hua Zhai1
  • Hao Gong2,3
  • Xiao Long1,2
  • Yuanzhuo Tian1,2
  • Zhanyong Hong2,3
  • Long Zheng2,3,4
  • Xucong Wang2,3
  • Xiangyu Chen2,3
  • Zhong Lin Wang2,3
4 affiliations
  1. 1Anhui Province Key Lab of Aerospace Structural Parts Forming Technology and Equipment Institute of Industry & Equipment Technology Hefei University of Technology Hefei China
  2. 2Beijing Key Laboratory of High‐Entropy Energy Materials and Devices Beijing Institute of Nanoenergy and Nanosystems Chinese Academy of Sciences Beijing China
  3. 3School of Nanoscience and Engineering University of Chinese Academy of Sciences Beijing China
  4. 4College of Polymer Science and Engineering State Key Laboratory of Polymer Materials Engineering Sichuan University Chengdu China
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Abstract

Wave energy is an important renewable energy source, but its low frequency and irregular amplitude make it difficult to harvest effectively, limiting the application of traditional generators. In this work, we report a high‐power hybrid nanogenerator (HP‐HNG) with multi‐degree‐of‐freedom mechanical coupling, which consists of a transmission system and four power generation modules (PGMs), each comprising an electromagnetic generator (EMG) pumping a main triboelectric nanogenerator (M‐TENG), a rotational electromagnetic generator (R‐EMG), and two rotational triboelectric nanogenerators(R‐TENGs). Water waves can be harvested through the heave and pitch of the HP‐HNG, transforming multi‐degree‐of‐freedom energy input into a single output. Part of the EMG as a charge pump, outputting rectified positive and negative charges into the M‐TENG via voltage‐doubling rectification, achieving ultra‐high surface charge density. The HP‐HNG can reach a peak output power of 0.764 W, corresponding to a peak power density of 127.303 W m− 3. With a water wave frequency of 1 Hz, the HP‐HNG can charge a 4.7mF capacitor to 2.5 V in 2 s. The HP‐HNG enables real‐time monitoring of submarine cable temperature and displacement through thermometers and other sensors. This work provides a constructive technical pathway for intelligent monitoring of submarine cables, demonstrating strong potential in distributed sensing applications for the marine Internet of Things.

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Cite

BibTeXRIS
BibTeX
@article{ding2026highpower,
  title = {{High‐Power Hybrid Nanogenerator With Multi‐Degree‐of‐Freedom Mechanical Coupling for Harvesting Water Wave Energy}},
  author = {Shuai Ding and Hua Zhai and Hao Gong and Xiao Long and Yuanzhuo Tian and Zhanyong Hong and Long Zheng and Xucong Wang and Xiangyu Chen and Zhong Lin Wang},
  journal = {Advanced Science},
  year = {2026},
  month = aug,
  doi = {10.1002/advs.77154},
  url = {https://doi.org/10.1002/advs.77154},
  note = {CC BY 4.0},
}
RIS
TY  - JOUR
TI  - High‐Power Hybrid Nanogenerator With Multi‐Degree‐of‐Freedom Mechanical Coupling for Harvesting Water Wave Energy
AU  - Shuai Ding
AU  - Hua Zhai
AU  - Hao Gong
AU  - Xiao Long
AU  - Yuanzhuo Tian
AU  - Zhanyong Hong
AU  - Long Zheng
AU  - Xucong Wang
AU  - Xiangyu Chen
AU  - Zhong Lin Wang
PY  - 2026
DA  - 2026/08/14
JO  - Advanced Science
DO  - 10.1002/advs.77154
UR  - https://doi.org/10.1002/advs.77154
AB  - Wave energy is an important renewable energy source, but its low frequency and irregular amplitude make it difficult to harvest effectively, limiting the application of traditional generators. In this work, we report a high‐power hybrid nanogenerator (HP‐HNG) with multi‐degree‐of‐freedom mechanical coupling, which consists of a transmission system and four power generation modules (PGMs), each comprising an electromagnetic generator (EMG) pumping a main triboelectric nanogenerator (M‐TENG), a rotational electromagnetic generator (R‐EMG), and two rotational triboelectric nanogenerators(R‐TENGs). Water waves can be harvested through the heave and pitch of the HP‐HNG, transforming multi‐degree‐of‐freedom energy input into a single output. Part of the EMG as a charge pump, outputting rectified positive and negative charges into the M‐TENG via voltage‐doubling rectification, achieving ultra‐high surface charge density. The HP‐HNG can reach a peak output power of 0.764 W, corresponding to a peak power density of 127.303 W m− 3. With a water wave frequency of 1 Hz, the HP‐HNG can charge a 4.7mF capacitor to 2.5 V in 2 s. The HP‐HNG enables real‐time monitoring of submarine cable temperature and displacement through thermometers and other sensors. This work provides a constructive technical pathway for intelligent monitoring of submarine cables, demonstrating strong potential in distributed sensing applications for the marine Internet of Things.
SN  - 2198-3844
ER  -