Constructing high output performance triboelectric nanogenerator via V-shape stack and self-charge excitation

Gui, Li; Fu, Shaoke; Luo, Ciyong; Wang, Ping; Du, Yan; Tang, Yuting; Wang, Zhao; He, Wencong; Liu, Wenlin; Guo, Hengyu; Chen, Jie; Hu, Chenguo

doi:10.1016/j.nanoen.2022.107068

Cited by 31 publications

(15 citation statements)

References 45 publications

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“…[16c,17] Moreover, TENG has advantages in low frequency, random and small amplitude motions, indicating its potential applications in micro-nano energy harvesting and sensing devices. [18] However, for the hybrid TENG-EMG, the output performance of TENG part is relatively low, which seriously limits the application of TENG in energy harvesting. [19] Therefore, boosting the output performance of the TENG part is a big target for achieving practical applications.…”

Section: Introductionmentioning

confidence: 99%

A Nanogenerator Enabled by a Perfect Combination and Synergetic Utilization of Triboelectrification, Charge Excitation and Electromagnetic Induction to Reach Efficient Energy Conversion

Gui

Wang

et al. 2023

Adv Funct Materials

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Triboelectric-electromagnetic hybridized nanogenerator (TEHG) is confirmed as an effective energy harvesting for Internet of Things. However, it is still a great challenge to gain a high-output triboelectric-nanogenerator (TENG) and to perfectly combine TENG with electromagnetic generator (EMG). Herein, a TEHG composed of space confined multi-layer-stack TENG (SM-TENG) and stack compression promoted flux change EMG is proposed. The interaction of magnets on the rotor with the magnets on the stator makes contact-separation of the SM-TENG and changes the magnetic flux of EMG in rotation process, reducing wear and deformation of TENG. A voltage multiplier circuit (VMC) with a Zener diode is employed to enhance SM-TENG performance and maintain stable output. The output charge and current of four SM-TENG units reach 3.2 µC and 385 µA at rotatory speed 60 rpm, and the voltage of four EMG reaches 8.09 V. The perfect combination and synergetic utilization of triboelectrification, charge excitation, and electromagnetic induction in a single device are realized. The integrated TEHG can power 12 bulbs (2 W) and 16 thermo-hygrometers, and a Bluetooth thermo-hygrometer to transmit wireless signals to a mobile phone. This work provides a new strategy for high efficient integration and utilization various mechanisms in one energyharvesting device.

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Section: Introductionmentioning

confidence: 99%

A Nanogenerator Enabled by a Perfect Combination and Synergetic Utilization of Triboelectrification, Charge Excitation and Electromagnetic Induction to Reach Efficient Energy Conversion

Gui

Wang

et al. 2023

Adv Funct Materials

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“…[ 33,34 ] By injecting charge into the electrode, charge excitation system, which mainly contains a pump TENG as a high‐voltage power source for charge injection, a capacitor system for charge storage, and a main TENG for charge output, can break the limitation of triboelectrification ability of tribo‐materials, thus improve the charge accumulation ratio and achieve high‐performance TENG in a normal environment. Currently, many strategies including improving contact efficiency, [ 35 ] using high‐k material, [ 36,37 ] developing structural design [ 38,39 ] have been proposed to optimize charge excitation system, however, before injecting charges to the main TENG, the alternating current (AC) of pump TENG must be converted to direct current (DC) output by using rectifying elements firstly. Moreover, the requirements of high triboelectric materials for the pump TENG and high‐voltage power source supplied by voltage‐multiplying circuit greatly increase the limitations in material selection and complexity of charge excitation system.…”

Section: Introductionmentioning

confidence: 99%

“…[33,34] By injecting charge into the electrode, charge excitation system, which mainly contains a pump TENG as a high-voltage power source for charge injection, a capacitor system for charge storage, and a main TENG for charge output, can break the limitation of triboelectrification ability of tribo-materials, thus improve the charge accumulation ratio and achieve high-performance TENG in a normal environment. Currently, many strategies including improving contact efficiency, [35] using high-k material, [36,37] developing structural design [38,39] have been proposed…”

Section: Introductionmentioning

confidence: 99%

Achieving High‐Performance Triboelectric Nanogenerator by DC Pump Strategy

Yang

Zhou

Gao

et al. 2023

Adv Materials Technologies

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Triboelectric nanogenerator (TENG) has been demonstrated as a promising solution for powering widely distributed electronics in the new era of Internet of Things (IoTs), however, high‐performance TENG always relies on tribo‐materials with high triboelectric property. Herein, a simple self‐charge excitation technique that charge injection is directly realized by self‐generated electrostatic breakdown charge instead of voltage‐multiplying circuit is proposed to break through the limitation of triboelectrification. By using the designed electrostatic breakdown charge excitation TENG (EBE‐TENG), the output performance of poor tribo‐material based TENG such as polyethylene (PE) can be enhanced by 5.7 times, which even approximates that of high tribo‐material based TENG such as fluorinated ethylene propylene (FEP). Moreover, electrostatic breakdown charge excitation technique also exhibits a universal applicable ability for other different triboelectric materials. This work not only greatly simplifies the charge excitation system, but also broadens the availability of materials for achieving high‐performance TENG.

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“…24 It can be applied in the fields of wearable devices, 25 smart homes, 26 and memory of electronic equipment, 27 etc . In order to enhance the charge density of tribo-surfaces for improving the power output of TENG toward practical applications, considerable efforts have been made through various approaches, such as material modification, 2 surface structuring, 28 charge pumping, 29,30 charge shuttling, 31 self-charge excitation, 32,33 mechanical switch adjustment, 34 and multi-switch operation. 35 In 2018, a charge excitation strategy for the TENG system was proposed using a voltage multiplying circuit (VMC) to implement external-charge excitation and self-charge excitation of TENG.…”

Section: Introductionmentioning

confidence: 99%

Fractal structured charge-excitation triboelectric nanogenerators for powering portable electronic devices

Long

et al. 2023

Nanoscale

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Constructing high output performance triboelectric nanogenerator via V-shape stack and self-charge excitation

Cited by 31 publications

References 45 publications

A Nanogenerator Enabled by a Perfect Combination and Synergetic Utilization of Triboelectrification, Charge Excitation and Electromagnetic Induction to Reach Efficient Energy Conversion

A Nanogenerator Enabled by a Perfect Combination and Synergetic Utilization of Triboelectrification, Charge Excitation and Electromagnetic Induction to Reach Efficient Energy Conversion

Achieving High‐Performance Triboelectric Nanogenerator by DC Pump Strategy

Fractal structured charge-excitation triboelectric nanogenerators for powering portable electronic devices

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