Managing and optimizing the output performances of a triboelectric nanogenerator by a self-powered electrostatic vibrator switch

Yang, Junjie; Yang, Feng; Zhao, Lei; Shang, Wanyu; Qin, Huaifang; Wang, Shujie; Jiang, Xiaohong; Cheng, Gang; Du, Zongliang

doi:10.1016/j.nanoen.2018.02.013

Cited by 100 publications

(42 citation statements)

References 37 publications

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“…In the first cycle of operation, the transferred charges Q began at 0 (state I) and started to increase when the TENG voltage reached V C (state II). The concept of maximizing output energy transfer by modulating the charging cycle was also realized by using an electrostatic vibrator switch [70] or an air-discharge switch, [71] with the advantage of no additional switch-control unit. As the slider moved in the reverse direction, the charging process did not start until the output voltage of TENG reached −V C (state IV) and stopped when the slider moved back to the original position (state V).…”

Section: Wwwadvancedsciencenewscommentioning

confidence: 99%

Triboelectric Nanogenerator: A Foundation of the Energy for the New Era

Wang

Ding

et al. 2018

Advanced Energy Materials

1,291

884

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As the world is marching into the era of the internet of things (IoTs) and artificial intelligence, the most vital development for hardware is a multifunctional array of sensing systems, which forms the foundation of the fourth industrial revolution toward an intelligent world. Given the need for mobility of these multitudes of sensors, the success of the IoTs calls for distributed energy sources, which can be provided by solar, thermal, wind, and mechanical triggering/vibrations. The triboelectric nanogenerator (TENG) for mechanical energy harvesting developed by Z.L. Wang's group is one of the best choices for this energy for the new era, since triboelectrification is a universal and ubiquitous effect with an abundant choice of materials. The development of self‐powered active sensors enabled by TENGs is revolutionary compared to externally powered passive sensors, similar to the advance from wired to wireless communication. In this paper, the fundamental theory, experiments, and applications of TENGs are reviewed as a foundation of the energy for the new era with four major application fields: micro/nano power sources, self‐powered sensors, large‐scale blue energy, and direct high‐voltage power sources. A roadmap is proposed for the research and commercialization of TENG in the next 10 years.

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Section: Wwwadvancedsciencenewscommentioning

confidence: 99%

Triboelectric Nanogenerator: A Foundation of the Energy for the New Era

Wang

Ding

et al. 2018

Advanced Energy Materials

1,291

884

View full text Add to dashboard Cite

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Section: Buck Conversion For Tengsmentioning

confidence: 99%

“…Yang et al designed an electrostatic vibrating switch for the management of triboelectricity, as shown in Figure d. The operation principle is, during the operation process, the voltage of the TENGs is used to drive the vibration of the vibrating switch; thereby, the periodic electrical output is generated when the switch is triggered and thus, maximizing the energy output per cycle for TENGs.…”

Section: Buck Conversion For Tengsmentioning

confidence: 99%

Overview of Power Management for Triboelectric Nanogenerators

Fang

Tong

et al. 2020

Advanced Intelligent Systems

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Triboelectric nanogenerators (TENGs) have demonstrated enormous potential applications for acquiring human motion energy and ambient mechanical energy, which is the foundation of energy for the new era. However, with alternating current (AC) pulse and huge inherent impedance, the TENGs usually exhibit low‐energy supply efficiency when either powering conventional electronics or charging energy storage devices directly. Efficient power management has always been a technical bottleneck for the TENGs toward practical applications in self‐powered microsystems. Over the past years, several strategies of power management have been proposed, such as rectification, electromagnetic transformation, capacitive transformation, and direct current (DC) conversion, which can be used for voltage regulation, impedance matching, and efficiency improvement for electronics. Herein, the recent advances on power management for TENGs are systematically reviewed and analyzed, which has exhibited manageable triboelectric power by electronics as an important research issue of TENGs. Finally, the existing challenges and future perspectives in this field are discussed.

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“…According to the theory of Maxwell's displacement current, the electrostatic potential difference between two electrodes determines the motion of induced charges in a TENG. Researchers developed auxiliary components to actively break the original electrostatic balance and increase the as‐generated potential difference in a more controllable way, such with an external charge pump, unilateral‐connect switch, single‐polarized tip, and the cooperation with alternating‐polarity working modes. Notably, methods utilizing point discharge were found to increase the peak power from TENGs .…”

Section: Introductionmentioning

confidence: 99%

Triboelectric Harvesting by a Dual‐Tip Peak Power Multiplier under Airtight Condition

Zhang

Zhai

et al. 2020

Energy Tech

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Triboelectric nanogenerators (TENGs) are effective for harvesting mechanical energy and converting into electricity. Such devices have high output voltage and low current, appearing as high output impedance. Impedance mismatches involving these devices create challenges in power usage, storage, and management. Herein, a dual‐tip‐assisted TENG is developed and its electrical output performance under airtight condition is investigated. The generated charges can rapidly accumulate at the dual tip and produce a high potential difference. Such a potential difference accelerates the induced charges’ transfer speed and quantity. Gas discharge occurs once the potential exceeds some threshold, providing a conduction path for accumulated charges. With the help of such dual‐tip peak power multiplier, TENG's peak‐to‐peak short‐circuit current and open‐circuit voltage are 433% and 145% higher, respectively. The peak power reaches a maximum of 34.8 mW with a 100 kΩ load resistance, whereas that of the original TENG is 1.5 mW with a 100 MΩ load resistance, indicating 22.2 times of peak power increase and an optimal matching impedance decrease by three orders of magnitude. The results indicate that this multiplier is meaningful for the optimization of TENG's output and impedance.

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Managing and optimizing the output performances of a triboelectric nanogenerator by a self-powered electrostatic vibrator switch

Cited by 100 publications

References 37 publications

Triboelectric Nanogenerator: A Foundation of the Energy for the New Era

Triboelectric Nanogenerator: A Foundation of the Energy for the New Era

Overview of Power Management for Triboelectric Nanogenerators

Triboelectric Harvesting by a Dual‐Tip Peak Power Multiplier under Airtight Condition

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