Universal power management strategy for triboelectric nanogenerator

Xi, Fengben; Pang, Yaokun; Li, Wei; Jiang, Tao; Zhang, Limin; Guo, Tong; Liu, Guoxu; Zhang, Chi; Wang, Zhong Lin

doi:10.1016/j.nanoen.2017.05.027

Cited by 351 publications

(216 citation statements)

References 38 publications

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“…The charging stopped when the friction slider reached the maximum displacement and the Q could not reach Q SC,max since the output voltage V C had to be maintained (state III). [68] The two strategies of power management can be integrated together to improve the final energy storage efficiency by maximizing the energy transfer out of TENGs and the energy conversion into energy storage units simultaneously. Similarly, the Q could not decrease back to 0 since −V C must be maintained.…”

Section: Wwwadvancedsciencenewscommentioning

confidence: 99%

“…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). [68,72] Such power management circuits consist of the switch-based mechanism for achieving the cycle for maximized energy output of TENG, and the power-converter-based mechanism for impedance matching. In subsequent cycles, the V-Q curves followed the sequence of V-VI-III-IV-V, with the area enclosed by red solid lines being the steady-state stored energy per cycle.…”

Section: Wwwadvancedsciencenewscommentioning

confidence: 99%

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

Wang

Ding

et al. 2018

Advanced Energy Materials

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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%

Section: Wwwadvancedsciencenewscommentioning

confidence: 99%

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

Wang

Ding

et al. 2018

Advanced Energy Materials

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1,359

884

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“…[6] Recently, several new applications have been introduced for TENGs. Accordingly to wide application ranges of TENGs, universal power management strategy for TENG has been proposed by Wang et al [24] They showed that harvesting human kinetic and environmental mechanical energy can potentially be a microscopy solution for wearable electronics, distributed wireless sensor, and future Energy internet. [20] They showed that various designs of TENG efficiently harvested low-frequency water wave.…”

Section: Introductionmentioning

confidence: 99%

Flexible Triboelectric Nanogenerator Based on High Surface Area TiO₂ Nanotube Arrays

Mohammadpour

2017

Adv Eng Mater

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Triboelectric nanogenerators (TENGs) can harvest mechanical energy through coupling triboelectric effect and electrostatic induction. Typically, TENGs consist of organic materials, however on account of the potentially wide range of applications of TENGs as the self-powered portable/wearable electronics, biomedical devices, and sensors; semiconductor metal oxide materials can be promising candidates to be incorporating in TENG structure. Here, flexible TENG based on self-organized TiO 2 nanotube arrays (TNTAs) is fabricated via anodization method. The introduced flexible large area nanotubular electrode is employed as the moving electrode in contact with Kapton film in vertical contact separation mode of TENG. The fabricated TENG can deliver output voltage of 40 V with the current density of 1 μA cm À2 . To evaluate the role of nanostructured interface, its performance has been compared to the thin film flat compact TiO 2 electrode. The results of extracted charge measurements under short circuit condition indicate that larger triboelectric charge density formed in TNTA-based electrode (about 110 nC per cycle of press and release) is in comparison to 15 nC in flat TiO 2 electrode. Due to the extensive range of applications of TiO 2 , the introduced structure can potentially be applicable in various types of self-powered systems such as photo-detectors and environmental gas and bio-sensors.

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“…Triboelectric nanogenerator (TENG), as a novel mechanical energy harvesting technique invented by Wang et al, has proven to be an effective power alternative for small electronics and attracted plenty of interests in recent years. The other one is from the power management perspective, [22][23][24][25][26][27][28][29][30][31] which is more general.Over the past few years, extensive efforts have been put into the power management of TENG for enhancing its output performance. One way is from the device perspective, for example, choosing appropriate materials, designing the device structure, etc., [12][13][14][15][16][17][18][19][20][21] which is effective but needs specific optimization.…”

mentioning

confidence: 99%

“…[4][5][6][7][8][9][10][11] To make TENG more practical and compatible to the commercial electronics, it is always desirable to improve the output performance. [22][23][24][25][26][27][28][29][30][31][32] Zi et al first proposed the concepts of "figure of merits" and "cycles for maximum energy output (CMEO)," [28] which provide the guideline for the maximum energy output per cycle of a TENG device. The other one is from the power management perspective, [22][23][24][25][26][27][28][29][30][31] which is more general.…”

mentioning

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Boost the Performance of Triboelectric Nanogenerators through Circuit Oscillation

Ding

Guo

et al. 2019

Advanced Energy Materials

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and sustainable energy. Triboelectric nanogenerator (TENG), as a novel mechanical energy harvesting technique invented by Wang et al., has proven to be an effective power alternative for small electronics and attracted plenty of interests in recent years. [4][5][6][7][8][9][10][11] To make TENG more practical and compatible to the commercial electronics, it is always desirable to improve the output performance. One way is from the device perspective, for example, choosing appropriate materials, designing the device structure, etc., [12][13][14][15][16][17][18][19][20][21] which is effective but needs specific optimization. The other one is from the power management perspective, [22][23][24][25][26][27][28][29][30][31] which is more general.Over the past few years, extensive efforts have been put into the power management of TENG for enhancing its output performance. [22][23][24][25][26][27][28][29][30][31][32] Zi et al. first proposed the concepts of "figure of merits" and "cycles for maximum energy output (CMEO)," [28] which provide the guideline for the maximum energy output per cycle of a TENG device. Afterward, Xi et al. [29] and Cheng et al. [30] have separately demonstrated the power management circuits which assist the TENG to achieve the 72% and 80% of the CMEO. However, the further approaching or even beyond the CMEO is more than difficult. Moreover, the maximum energy output can only be achieved when the load matches the impedance of TENG. Considering the low intrinsic capacitance of TENG and low frequency characteristics of the ambient vibration, the matching impedance is always beyond magnitude of tens or hundreds of megaohms. [15,33,34] Although several existing power management strategies can help reduce the matched impedance to several megaohms, [28,30] it is still much larger than the input resistance of common electronics, which are typically around hundreds of ohms. Recently, Qin et al. reported an interesting TENG system which can eliminate the requirement of impedance matching, [31] however, their system is only applicable for elaborate devices.Herein, in both theory and experimental verification, we report a novel power management strategy named oscillation assisting TENG (OA-TENG), which can exceed the CMEO limit of individual TENG under arbitrary load resistance. Unlike the previous power management strategies, the farther the load resistance from the matching impedance, the higher energy output per cycle can be provided from the OA-TENG, which means this strategy is especially suitable for the common electronics of low resistance. This OA-TENG is achieved by Triboelectric nanogenerator (TENG) which harvests ubiquitous ambient mechanical energy is a promising power source that can meet the distributed energy demand in the internet of things, wearable electronics, etc. However, the available output of TENG is severely limited by the saturated polarized charge density, small intrinsic capacitance, and large matching impedance. Herein, an effective power management strategy is proposed that fl...

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Universal power management strategy for triboelectric nanogenerator

Cited by 351 publications

References 38 publications

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

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

Flexible Triboelectric Nanogenerator Based on High Surface Area TiO₂ Nanotube Arrays

Boost the Performance of Triboelectric Nanogenerators through Circuit Oscillation

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Universal power management strategy for triboelectric nanogenerator

Cited by 351 publications

References 38 publications

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

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

Flexible Triboelectric Nanogenerator Based on High Surface Area TiO2 Nanotube Arrays

Boost the Performance of Triboelectric Nanogenerators through Circuit Oscillation

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Flexible Triboelectric Nanogenerator Based on High Surface Area TiO₂ Nanotube Arrays