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Electrical power generation by mechanically modulating electrical double layers

Author

Listed:
  • Jong Kyun Moon

    (Pusan National University)

  • Jaeki Jeong

    (Pusan National University)

  • Dongyun Lee

    (Pusan National University)

  • Hyuk Kyu Pak

    (Pusan National University)

Abstract

Since Michael Faraday and Joseph Henry made their great discovery of electromagnetic induction, there have been continuous developments in electrical power generation. Most people today get electricity from thermal, hydroelectric, or nuclear power generation systems, which use this electromagnetic induction phenomenon. Here we propose a new method for electrical power generation, without using electromagnetic induction, by mechanically modulating the electrical double layers at the interfacial areas of a water bridge between two conducting plates. We find that when the height of the water bridge is mechanically modulated, the electrical double layer capacitors formed on the two interfacial areas are continuously charged and discharged at different phases from each other, thus generating an AC electric current across the plates. We use a resistor-capacitor circuit model to explain the results of this experiment. This observation could be useful for constructing a micro-fluidic power generation system in the near future.

Suggested Citation

  • Jong Kyun Moon & Jaeki Jeong & Dongyun Lee & Hyuk Kyu Pak, 2013. "Electrical power generation by mechanically modulating electrical double layers," Nature Communications, Nature, vol. 4(1), pages 1-6, June.
    • Handle: RePEc:nat:natcom:v:4:y:2013:i:1:d:10.1038_ncomms2485
    DOI: 10.1038/ncomms2485
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    Cited by:

    1. Wu, Xuan & Li, Guangyong & Lee, Dong-Weon, 2016. "A novel energy conversion method based on hydrogel material for self-powered sensor system applications," Applied Energy, Elsevier, vol. 173(C), pages 103-110.
    2. Xue, Weijiang & Chen, Tianwu & Ren, Zhichu & Kim, So Yeon & Chen, Yuming & Zhang, Pengcheng & Zhang, Sulin & Li, Ju, 2020. "Molar-volume asymmetry enabled low-frequency mechanical energy harvesting in electrochemical cells," Applied Energy, Elsevier, vol. 273(C).
    3. Wijewardhana, K. Rohana & Shen, Tian-Zi & Song, Jang-Kun, 2017. "Energy harvesting using air bubbles on hydrophobic surfaces containing embedded charges," Applied Energy, Elsevier, vol. 206(C), pages 432-438.
    4. Hua-Ju Shih, 2019. "An Analysis Model Combining Gamma-Type Stirling Engine and Power Converter," Energies, MDPI, vol. 12(7), pages 1-18, April.
    5. Helseth, L.E., 2021. "Harvesting energy from light and water droplets by covering photovoltaic cells with transparent polymers," Applied Energy, Elsevier, vol. 300(C).
    6. Krzysztof A. Bogdanowicz, 2021. "Bi-Triggering Energy Harvesters: Is It Possible to Generate Energy in a Solar Panel under Any Conditions?," Energies, MDPI, vol. 14(18), pages 1-28, September.
    7. Youngsun Kim & Hongru Ding & Yuebing Zheng, 2022. "Investigating water/oil interfaces with opto-thermophoresis," Nature Communications, Nature, vol. 13(1), pages 1-9, December.

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