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<p>Triboelectric nanogenerators (TENGs) have emerged as promising energy harvesters for sustainable energy solutions owing to their lightweight structure, cost-effectiveness, and capability for high voltage output. TENGs operate by converting mechanical energy into electrical energy through triboelectrification and electrostatic induction, with the output power closely linked to the operating frequency. Although rotational motion provides continuous power advantages over vertical contact-separation modes, traditional methods of mechanical frequency amplification, such as spur and planetary gears, often encounter limitations due to structural complexity and size constraints. In this study, we present the rotation cycloidal accelerated triboelectric nanogenerator (RCA-TENG), which employs a cycloidal gear system to transform low-speed rotational energy into high-speed output rotation, thereby significantly enhancing the electrical performance. Furthermore, RCA-TENG integrates the electronic avalanche effect to further augment its current output. This design achieved significant performance improvements, delivering a root mean square (RMS) voltage of 20.3&#xa0;V and an RMS current of 21.94 µA, representing increases of approximately 810.7% and 283.9%, respectively, when compared to conventional discharge designs. Consequently, the RMS output power of RCA-TENG reached 362.21 µW, which is approximately 23.24 times higher than that of conventional discharge designs under an external resistance of 10 GΩ. These findings highlight the capability of RCA-TENG to generate stable high-frequency electrical power from low-speed mechanical inputs, underscoring its potential as an efficient energy harvesting system for sustainable energy applications.</p>

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Rotation Cycloidal Accelerated Triboelectric Nanogenerator for Enhanced Electrical Output Through Mechanical Frequency Amplification

  • 期刊论文

  • 发表日期：

    2026年1月5日

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  • Giyoung Son,
  • Seokjin Kim,
  • Jang-Woo Han,
  • Jihoon Chung

摘要

Triboelectric nanogenerators (TENGs) have emerged as promising energy harvesters for sustainable energy solutions owing to their lightweight structure, cost-effectiveness, and capability for high voltage output. TENGs operate by converting mechanical energy into electrical energy through triboelectrification and electrostatic induction, with the output power closely linked to the operating frequency. Although rotational motion provides continuous power advantages over vertical contact-separation modes, traditional methods of mechanical frequency amplification, such as spur and planetary gears, often encounter limitations due to structural complexity and size constraints. In this study, we present the rotation cycloidal accelerated triboelectric nanogenerator (RCA-TENG), which employs a cycloidal gear system to transform low-speed rotational energy into high-speed output rotation, thereby significantly enhancing the electrical performance. Furthermore, RCA-TENG integrates the electronic avalanche effect to further augment its current output. This design achieved significant performance improvements, delivering a root mean square (RMS) voltage of 20.3 V and an RMS current of 21.94 µA, representing increases of approximately 810.7% and 283.9%, respectively, when compared to conventional discharge designs. Consequently, the RMS output power of RCA-TENG reached 362.21 µW, which is approximately 23.24 times higher than that of conventional discharge designs under an external resistance of 10 GΩ. These findings highlight the capability of RCA-TENG to generate stable high-frequency electrical power from low-speed mechanical inputs, underscoring its potential as an efficient energy harvesting system for sustainable energy applications.