A piezo-triboelectric hybrid nanogenerator based on charge pumping strategy

Shen, Guocheng; Hu, Yili; Li, Jianping; Wen, Jianming; Ma, Jijie

doi:10.1016/j.enconman.2023.117368

Cited by 14 publications

(1 citation statement)

References 49 publications

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“…However, the above two methods also have issues with material wear, tearing after friction, and complex manufacturing processes. In recent years, the emerging charge pump technology has broken through the bottleneck of increasing charge density [20,21]. For example, Xu et al [22] used charge pumps for the first time in 2018 to increase the amount of charge on metal electrodes and achieve a high charge density up to 1020 µCm −2 .…”

Section: Introductionmentioning

confidence: 99%

High Performance Rotating Triboelectric Nanogenerator with Coaxial Rolling Charge Pump Strategy

Hao,

Qi,

Wang

et al. 2023

Micromachines

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With the development of society and the advancement of technology, the emergence of the Internet of Things (IoT) has changed people’s lifestyles and raised the demand for energy to a new level. However, there are some drawbacks in terms of energy supply for IoT sensors, such as limited battery capacity and limitations in replacement and maintenance. Therefore, it has become urgent to develop a sustainable green energy source (wind energy) using the surrounding environment. Meanwhile, triboelectric nanogenerators (TENGs) with advantages such as flexible structure, low manufacturing cost, and environmental friendliness provide enormous potential for constructing self-powered sensing systems. In this work, we present a novel coaxial rolling charge pump TENG (CR-TENG) based on wind energy to enhance the output performance and durability. The rolling friction charge pump TENG directly injects positive and negative charges into the main TENG, which is more wear-resistant compared to sliding friction, and greatly increases the charge density and output power. In addition, the charge pumping part and the main TENG adopt the coaxial design, reducing the complexity of the structural design. On comparing the output performance of the CR-TENG under the initial state, rectifier bridge supplemental charge strategy, and charge pump supplemental charge strategy, results shown that the output voltage performance of the CR-TENG can be improved by 5800% under the charge pump supplemental charge strategy. Moreover, the output performance of the CR-TENG remains stable after 72,000 cycles. The output power of the CR-TENG can reach 1.21 mW with a load resistance of 3 × 107 Ω. And the CR-TENG can charge a 0.1 μF capacitor to 5 V in just 1.6 s. This work provides new insights for the rotary durable high output charge pump compensating a triboelectric nanogenerator and demonstrates the important potential of harvesting environmental energy to supply intelligent IoT nodes.

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Section: Introductionmentioning

confidence: 99%

High Performance Rotating Triboelectric Nanogenerator with Coaxial Rolling Charge Pump Strategy

Hao,

Qi,

Wang

et al. 2023

Micromachines

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Triboelectric Nanogenerator with the Double‐Mass Pendulum Integrated Spacer for Galloping Energy Harvesting of Transmission Lines

Zhai,

Zhang,

et al. 2024

Small

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The transmission lines galloping severely threatens the safety operation of the power grid. A reliable operation and maintenance alternative is to monitor the transmission lines by wireless sensing and warning devices. In this work, a triboelectric nanogenerator with the double‐mass pendulum integrated spacer (DMPS‐TENG) is proposed for harvesting the galloping energy of transmission lines and powering the wireless monitoring devices. Specifically, by introducing a double‐mass pendulum system, the response frequency of the DMPS‐TENG is reduced, allowing it to harvest energy at lower frequencies in the range of transmission lines galloping (0–3 Hz). Hereby, enhancing the energy harvesting bandwidth and the efficiency. The experiments show that with the introduction of the double‐mass pendulum, the optimum frequency of the harvester is reduced from 2.4 to 1.9 Hz, enhances the harvesting bandwidth by 18%, and enables an average power output of up to 0.32 mW. Additionally, to demonstrate the practical value, a prototype is designed and fabricated to perform three different application experiments in the multi‐split transmission lines simulation system. This work presents an innovative approach for galloping energy harvesting of transmission lines, which can be used to inform further development of sensor networks and visualization of the power grid.

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Significantly Enhanced Output Performance of Triboelectric Nanogenerators via Charge Storage and Release Strategy

Zhao,

Zhang,

Wang

et al. 2024

Small

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As a novel energy harvesting technology, bettering the output performance of triboelectric nanogenerators (TENGs) is vital. Although quite a number methods to increase charge density have been proposed, challenges such as high impedance matching and low output current persist, severely limit the energy utilization efficiency of TENGs. Here, a new power management circuit (PMC) is proposed that through charge storage and release strategy. This circuit first excites the surface charge of the TENG using the charge excitation circuit, and then releases the stored charge through a self‐triggered switch. Compared to a standard TENG, the output current of the TENG with this PMC is increased by a factor of 1108, the impedance is decreased from 100 MΩ to 10 kΩ, and the energy utilization efficiency is markedly improved. This work affords a reference for enhancing the output performance of TENG, reducing impedance, and broading the utility attainable of TENGs.

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A piezo-triboelectric hybrid nanogenerator based on charge pumping strategy

Cited by 14 publications

References 49 publications

High Performance Rotating Triboelectric Nanogenerator with Coaxial Rolling Charge Pump Strategy

High Performance Rotating Triboelectric Nanogenerator with Coaxial Rolling Charge Pump Strategy

Triboelectric Nanogenerator with the Double‐Mass Pendulum Integrated Spacer for Galloping Energy Harvesting of Transmission Lines

Significantly Enhanced Output Performance of Triboelectric Nanogenerators via Charge Storage and Release Strategy

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