Sustainable high-voltage source based on triboelectric nanogenerator with a charge accumulation strategy (original) (raw)

* Corresponding authors

a 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 100083, P. R. China
E-mail: chenxiangyu@binn.cas.cn

b School of Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing 100049, P. R. China

c Anhui Province Key Lab of Aerospace Structural Parts Forming Technology and Equipment Institute of Industry & Equipment Technology, HFUT, Hefei 230009, P. R. China

d School of Material Science and Engineering Georgia Institute of Technology, Atlanta, GA 30332-0245, USA
E-mail: zhong.wang@mse.gatech.edu

Abstract

The application of TENGs as a controllable high-voltage power source is one of the four major research directions of TENGs. However, there are still many high-voltage applications beyond the driving capability of TENGs mainly due to the insufficient sustainability of tribo-induced charges. Here, we have proposed a triboelectric nanogenerator (TENG) with a charge accumulation strategy to provide a sustainable ultrahigh output voltage, which is enough to drive almost all the possible high-voltage applications of TENGs. More than 8000 LEDs can be continuously illuminated using this TENG device and the calculated output voltage from this device can reach over 20 kV, updating a new record for the TENG devices. The ultrahigh voltage from this TENG can trigger continuous electrophoresis (EP) and dielectrophoresis (DEP) effects in oil, achieving a self-powered oil purification system. The suspended impurities, including both conductive and dielectric particles, in 50 ml oil can be removed by this system within 100 seconds. This work offers a different purification system for the current oil recycling industry with a simple design and zero power consumption. Meanwhile, two kinds of typical high-voltage devices, a dielectric elastomer actuator (DEA) and electrospinning system, can be directly driven by this SH-TENG with a rather low rotation speed, while no power source or amplifying circuit is needed. All of these demonstrations verify that this new type of TENG can provide some practical applications in many fields such as electrostatic manipulation and air pollution treatment.

Graphical abstract: Sustainable high-voltage source based on triboelectric nanogenerator with a charge accumulation strategy

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Article information

DOI

https://doi.org/10.1039/D0EE01236J

Article type

Paper

Submitted

20 Apr 2020

Accepted

05 Jun 2020

First published

06 Jun 2020

Download Citation

Energy Environ. Sci., 2020,13, 2178-2190

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