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Magnetic Force Enhanced Sustainability and Power of Cam-Based Triboelectric Nanogenerator

Since the first invention of triboelectric nanogenerators (TENGs) in 2012, many mechanical systems have been applied to operate TENGs, but mechanical contact losses such as friction and noise are still big obstacles for improving their output performance and sustainability. Here, we report on a magn...

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Autores principales: Kim, Hakjeong, Hwang, Hee Jae, Huynh, Nghia Dinh, Pham, Khanh Duy, Choi, Kyungwho, Ahn, Dahoon, Choi, Dukhyun
Formato: Online Artículo Texto
Lenguaje:English
Publicado: AAAS 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7968483/
https://www.ncbi.nlm.nih.gov/pubmed/33796861
http://dx.doi.org/10.34133/2021/6426130
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author Kim, Hakjeong
Hwang, Hee Jae
Huynh, Nghia Dinh
Pham, Khanh Duy
Choi, Kyungwho
Ahn, Dahoon
Choi, Dukhyun
author_facet Kim, Hakjeong
Hwang, Hee Jae
Huynh, Nghia Dinh
Pham, Khanh Duy
Choi, Kyungwho
Ahn, Dahoon
Choi, Dukhyun
author_sort Kim, Hakjeong
collection PubMed
description Since the first invention of triboelectric nanogenerators (TENGs) in 2012, many mechanical systems have been applied to operate TENGs, but mechanical contact losses such as friction and noise are still big obstacles for improving their output performance and sustainability. Here, we report on a magnet-assembled cam-based TENG (MC-TENG), which has enhanced output power and sustainability by utilizing the non-contact repulsive force between the magnets. We investigate the theoretical and experimental dynamic behaviors of MC-TENGs according to the effects of the contact modes, contact and separation times, and contact forces (i.e., pushing and repulsive forces). We suggest an optimized arrangement of magnets for the highest output performance, in which the charging time of the capacitor was 2.59 times faster than in a mechanical cam-based TENG (C-TENG). Finally, we design and demonstrate a MC-TENG-based windmill system to effectively harvest low-speed wind energy, ~4 m/s, which produces very low torque. Thus, it is expected that our frictionless MC-TENG system will provide a sustainable solution for effectively harvesting a broadband of wasted mechanical energies.
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spelling pubmed-79684832021-03-31 Magnetic Force Enhanced Sustainability and Power of Cam-Based Triboelectric Nanogenerator Kim, Hakjeong Hwang, Hee Jae Huynh, Nghia Dinh Pham, Khanh Duy Choi, Kyungwho Ahn, Dahoon Choi, Dukhyun Research (Wash D C) Research Article Since the first invention of triboelectric nanogenerators (TENGs) in 2012, many mechanical systems have been applied to operate TENGs, but mechanical contact losses such as friction and noise are still big obstacles for improving their output performance and sustainability. Here, we report on a magnet-assembled cam-based TENG (MC-TENG), which has enhanced output power and sustainability by utilizing the non-contact repulsive force between the magnets. We investigate the theoretical and experimental dynamic behaviors of MC-TENGs according to the effects of the contact modes, contact and separation times, and contact forces (i.e., pushing and repulsive forces). We suggest an optimized arrangement of magnets for the highest output performance, in which the charging time of the capacitor was 2.59 times faster than in a mechanical cam-based TENG (C-TENG). Finally, we design and demonstrate a MC-TENG-based windmill system to effectively harvest low-speed wind energy, ~4 m/s, which produces very low torque. Thus, it is expected that our frictionless MC-TENG system will provide a sustainable solution for effectively harvesting a broadband of wasted mechanical energies. AAAS 2021-03-08 /pmc/articles/PMC7968483/ /pubmed/33796861 http://dx.doi.org/10.34133/2021/6426130 Text en Copyright © 2021 Hakjeong Kim et al. https://creativecommons.org/licenses/by/4.0/ Exclusive Licensee Science and Technology Review Publishing House. Distributed under a Creative Commons Attribution License (CC BY 4.0).
spellingShingle Research Article
Kim, Hakjeong
Hwang, Hee Jae
Huynh, Nghia Dinh
Pham, Khanh Duy
Choi, Kyungwho
Ahn, Dahoon
Choi, Dukhyun
Magnetic Force Enhanced Sustainability and Power of Cam-Based Triboelectric Nanogenerator
title Magnetic Force Enhanced Sustainability and Power of Cam-Based Triboelectric Nanogenerator
title_full Magnetic Force Enhanced Sustainability and Power of Cam-Based Triboelectric Nanogenerator
title_fullStr Magnetic Force Enhanced Sustainability and Power of Cam-Based Triboelectric Nanogenerator
title_full_unstemmed Magnetic Force Enhanced Sustainability and Power of Cam-Based Triboelectric Nanogenerator
title_short Magnetic Force Enhanced Sustainability and Power of Cam-Based Triboelectric Nanogenerator
title_sort magnetic force enhanced sustainability and power of cam-based triboelectric nanogenerator
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7968483/
https://www.ncbi.nlm.nih.gov/pubmed/33796861
http://dx.doi.org/10.34133/2021/6426130
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