High‐Durability Stacked Disc‐Type Rolling Triboelectric Nanogenerators for Environmental Monitoring Around Charging Buoys of Unmanned Ships

Author:

Wang Xiangyi12,Chen Litu13,Xu Zhiqiang13,Chen Pengfei12,Ye Cuiying12,Chen Baodong12,Jiang Tao124ORCID,Hong Zhanyong124,Wang Zhong Lin1456

Affiliation:

1. CAS Center for Excellence in Nanoscience Beijing Key Laboratory of Micro‐Nano Energy and Sensor Beijing Institute of Nanoenergy and Nanosystems Chinese Academy of Sciences Beijing 101400 P. R. China

2. School of Nanoscience and Engineering University of Chinese Academy of Sciences Beijing 100049 P. R. China

3. School of Instrument Science and Opto‐Electronics Engineering Hefei University of Technology Hefei Anhui 230009 P. R. China

4. Guangzhou Institute of Blue Energy Knowledge City, Huangpu District Guangzhou 510555 P. R. China

5. Georgia Institute of Technology Atlanta GA 30332 USA

6. Yonsei Frontier Lab Yonsei University Seoul 03722 Republic of Korea

Abstract

AbstractTriboelectric nanogenerator (TENG) as a means of energy harvesting can effectively harvest ocean wave energy, but the energy conversion efficiency and stability of the device during long‐term operations are still problems that must be solved for TENGs. Decreasing the frictional resistance between two triboelectric material surfaces is one of the critical approaches for improving the device efficiency and durability. In this work, a novel stacked disc‐type rolling triboelectric nanogenerator (SDR‐TENG) is designed and fabricated for low‐frequency water wave energy harvesting. After 860 000 working cycles, the electrical output attenuation of the SDR‐TENG basic unit is less than 5%, showing excellent device durability. Under the simulated water wave conditions, the SDR‐TENG with four rolling TENG units can produce an output current of 84.4 µA and an output power of 7.6 mW, corresponding to an effective power density of 16.8 W m−3. This work not only proposes a strategy to effectively enhance the durability of the devices, but also provides a feasible solution for monitoring the surrounding environment of the charging buoys of unmanned ships.

Funder

Beijing Nova Program

Publisher

Wiley

Subject

Biomaterials,Biotechnology,General Materials Science,General Chemistry

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