期刊
ADVANCED ENERGY MATERIALS
卷 11, 期 25, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/aenm.202100936
关键词
current amplification; friction wear; nonpolar liquid lubricants; triboelectric nanogenerators
类别
资金
- National Research Foundation of Korea (NRF) - Korea government(MSIT) [2020R1A2C1010829]
- Nano Material Technology Development Program through the National Research Foundation of Korea (NRF) - Ministry of Science and ICT [NRF-2016M3A7B4910532]
- National Research Foundation of Korea [2020R1A2C1010829] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
The paper introduces a novel triboelectric nanogenerator LLS-TENG that overcomes the electrical and mechanical limitations of existing TENGs by optimizing the structure and utilizing a nonpolar liquid lubricant, enabling it to charge commercial capacitors and batteries with high voltage and current output.
Triboelectric nanogenerators (TENGs) can convert a mechanical energy input to an electric energy output through Maxwell's displacement current. By increasing the electrical output and overcoming the mechanical limitations of TENGs, such devices can be used as an auxiliary power source for portable electronics. Nevertheless, the generation mechanism and structure must be optimized to compensate for the electrical and mechanical limitations of TENGs. This paper reports on a nonpolar liquid lubricant submerged TENG (LLS-TENG), which can overcome the existing electrical and mechanical limitations of the TENG. When a nonpolar liquid lubricant is filled in the LLS-TENG, the air breakdown can be effectively blocked owing to the large Debye length of such lubricants. In addition, the rolling friction and lubrication present in the LLS-TENG can significantly reduce the friction wear of the device. Consequently, the LLS-TENG can charge a commercial capacitor and battery by generating a high voltage and current output of up to 200 V and 170 mA, respectively.
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