Ultrahigh Electricity Generation from Low-Frequency Mechanical Energy by Efficient Energy Management

Wang, Zhao; Wen-lin, Liu; He, Wencong; Guo, Hengyu; Li, Long; Xi, Yunfei; Wang, Xue; Liu, Anping; Hu, Chenguo

doi:10.1016/j.joule.2020.12.023

Cited by 196 publications

(109 citation statements)

References 41 publications

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“…To further enhance the output performance, it is necessary to improve the high voltage resistance of the switch of the power management. More recently, Wang et al 220 proposed an ultrahigh voltage (7540 V) energy-management system for TENG based on a tunable auto-spark switch in a plate-to-plate structure and a matched home-made transformer. A half-wave circuit was employed to generate a stable high voltage to trigger the switch, which realizes the ultra-low leakage current and achieves the ultrahigh environmental antiinterference ability and stability.…”

Section: Impedance Matchingmentioning

confidence: 99%

Design and engineering of high‐performance triboelectric nanogenerator for ubiquitous unattended devices

Yang

Fan

2021

EcoMat

Self Cite

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The ability of future electronics to derive operational power from the working environment is attractive for realizing self-powered unattended electronics. Triboelectric nanogenerator (TENG) effectively harvests the otherwise wasted ubiquitous mechanical energy. Despite the recent advances in the design and development of various triboelectric devices, these devices' output still falls short in meeting the practical needs of directly powering electronics and sensors. Here, we review the recent progress in the design and optimization strategies for improving the TENG output performance, including but not limited to theoretical simulation, materials engineering, device engineering, and power management. The ubiquitous applications of the TENGs in micro/high-voltage power source, multifunctional intelligence, blue energy harvesting, and selfpowered electrochemical system are also discussed. Finally, we provide our perspectives regarding the challenges and opportunities for the future development of triboelectric devices with engineered high-performance and designer functionalities.

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Section: Impedance Matchingmentioning

confidence: 99%

Design and engineering of high‐performance triboelectric nanogenerator for ubiquitous unattended devices

Yang

Fan

2021

EcoMat

Self Cite

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“…This discovery can be effectively applied to energy collection and wireless transmission in IoT systems. Chen et al achieved high-efficiency output energy and energy utilization by using an energy management solution that converts the low-frequency energy collected by TENG into high-frequency energy by using the adjustable opening voltage of the Spark switch [98]. They found, through experiments, that under a 2.4 mm air gap, TENG can provide up to 7.5 kv to turn on the Spark switch, which is much higher than the traditional energy management work.…”

Section: Self-powered Sensors Based On Triboelectric Nanogenerators 41 Application Of Teng-based Self-powered Sensors In Iotmentioning

confidence: 99%

Advances in Smart Sensing and Medical Electronics by Self-Powered Sensors Based on Triboelectric Nanogenerators

Jiang

Zhu

et al. 2021

Micromachines

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With the rapid progress of artificial intelligence, humans are moving toward the era of the intelligent connection of all things. Therefore, the demand for sensors is drastically increasing with developing intelligent social applications. Traditional sensors must be triggered by an external power source and the energy consumption is high for equipment that is widely distributed and working intermittently, which is not conducive to developing sustainable green and healthy applications. However, self-powered sensors based on triboelectric nanogenerators (TENG) can autonomously harvest energy from the surrounding environment and convert this energy into electrical energy for storage. Sensors can also be self-powered without an external power supply, which is vital for smart cities, smart homes, smart transportation, environmental monitoring, wearable devices, and bio-medicine. This review mainly summarizes the working mechanism of TENG and the research progress of self-powered sensors based on TENG about the Internet of Things (IoT), robotics, human–computer interaction, and intelligent medical fields in recent years.

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“…However, this kind of electricity could not be utilized until the invention of triboelectric nanogenerator (TENG) in 2012. [ 12 ] Originating from the second term of Maxwell's displacement current, [ 13,14 ] the TENG with appropriate power management strategy [ 15,16 ] has incomparable advantages in harvesting low frequency and micro‐amplitude mechanical energy [ 17 ] from environment on account of its flexible structure [ 18 ] and intrinsic electrical characteristics. Therefore, its applications in wind, [ 19–21 ] ocean wave, [ 22–24 ] raindrops, [ 25–27 ] mechanical vibration, [ 28–30 ] human body movements, [ 31–33 ] etc.…”

Section: Introductionmentioning

confidence: 99%

Dual Mode Rotary Triboelectric Nanogenerator for Collecting Kinetic Energy from Bicycle Brake

Zhou

Liu

Gao

et al. 2021

Adv Energy and Sustain Res

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Regenerative braking system is a promising technology for electrical vehicles, in which the excess kinetic energy can be effectively collected and utilized. As a new energy technology based on contact electrification, triboelectric nanogenerator (TENG) is suitable for harvesting dissipated kinetic energy in braking systems. Herein, a dual mode rotary TENG (DMR‐TENG) is reported, which is installed on the bicycle disc brake for collecting kinetic energy in riding mode and braking mode. First, the electric generation mechanism of DMR‐TENG is analyzed and then the characteristics in different structural and kinematic parameters by simulation and experiment are investigated. Furthermore, a linkage mechanism is designed for two modes switching by controlling the distance between two triboelectric layers of the DMR‐TENG. The results illustrate that the DMR‐TENG can simultaneously illuminate 156 serial LEDs as a warning signal while riding and braking. In addition, it can charge a 300 μF capacitor and act as a power source to drive a speedometer, which can measure the bicycle speed in real time. Herein, a considerable prospect in vehicle kinetic energy collecting is demonstrated and may have potential application in intelligent transportation.

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Ultrahigh Electricity Generation from Low-Frequency Mechanical Energy by Efficient Energy Management

Cited by 196 publications

References 41 publications

Design and engineering of high‐performance triboelectric nanogenerator for ubiquitous unattended devices

Design and engineering of high‐performance triboelectric nanogenerator for ubiquitous unattended devices

Advances in Smart Sensing and Medical Electronics by Self-Powered Sensors Based on Triboelectric Nanogenerators

Dual Mode Rotary Triboelectric Nanogenerator for Collecting Kinetic Energy from Bicycle Brake

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