Multilayered Helical Spherical Triboelectric Nanogenerator with Charge Shuttling for Water Wave Energy Harvesting

Shijie Liu; Xi Liang; Pengfei Chen; Hairong Long; Tao Jiang; Zhong Lin Wang

doi:10.1002/smtd.202201392

Multilayered Helical Spherical Triboelectric Nanogenerator with Charge Shuttling for Water Wave Energy Harvesting

Small Methods. 2023 Mar;7(3):e2201392. doi: 10.1002/smtd.202201392. Epub 2023 Jan 29.

Authors

Shijie Liu^{1

2}, Xi Liang^{1

2}, Pengfei Chen^{1

2}, Hairong Long^{1

3}, Tao Jiang^{1

2

3}, Zhong Lin Wang^{1

4}

Affiliations

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 Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China.
³ School of Chemistry and Chemical Engineering, Guangxi University, Nanning, Guangxi, 530004, P. R. China.
⁴ School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA, 30332-0245, USA.

PMID: 36709488
DOI: 10.1002/smtd.202201392

Abstract

As an important part of natural resources, islands support the marine economy and build a blue barrier for marine ecological civilization. However, the power supply on these islands is difficult, limiting the development of marine internet of things (IoTs). In order to break the status quo, this work applies triboelectric nanogenerators (TENGs) to island power supply and ecological monitoring. A spherical TENG with two multilayered helical units is designed to harvest water wave energy, in which the space utilization rate reaches 92.5%. Then a charge shuttling mechanism is developed to improve the electrical output. The output current and power of a single TENG without power management reach 200.3 µA and 16.2 mW respectively, corresponding to a peak power density of 23.2 W m^-3 . Moreover, a scheme of the power managed TENG is proposed for realizing large-scale wave energy harvesting. The TENG is demonstrated to successfully power a water quality detector, a Bluetooth thermo-hygrometer, and an intelligent wireless alarm system for remote environmental monitoring. This work not only proposes a new type of TENG for water wave energy harvesting with improved performance, but also provides a new strategy for intelligent ocean IoTs, which even contributes to the carbon neutralization.

Keywords: charge shuttling; intelligent wireless alarming; self-powered; spring-like structures; triboelectric nanogenerators; water wave energy harvesting.

Abstract

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