Triboelectric Nanogenerator Tree for Harvesting Wind Energy and Illuminating in Subway Tunnel

Bian, Yaoxing; Jiang, Tao; Xiao, Tian; Gong, Wei; Cao, Xia; Wang, Zhaona; Wang, Zhong Lin

doi:10.1002/admt.201700317

Cited by 103 publications

(56 citation statements)

References 36 publications

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“…Different from conventional electromagnetic generators, TENGs originating from the Maxwell's displacement current are based on the varying polarization field induced by surface polarization charges rather than the varying magnetic field to generate electricity . Since its birth, different TENGs have been designed and utilized to harvest low frequency energies, such as energies from human motion, wind, and water waves . Moreover, rolling spherical TENGs and coupled TENG networks have been demonstrated to harness the water wave energy, because of the advantages of light‐weight, small‐resistance under the water wave motions, and easy to be integrated, etc .…”

Section: Introductionmentioning

confidence: 99%

Spherical Triboelectric Nanogenerators Based on Spring‐Assisted Multilayered Structure for Efficient Water Wave Energy Harvesting

Xiao

Ling

Jiang

et al. 2018

Adv Funct Materials

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193

113

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Making use of water wave energy at large is one of the most attractive, low-carbon, and renewable ways to generate electric power. The emergence of triboelectric nanogenerator (TENG) provides a new approach for effectively harvesting such low-frequency, irregular, and "random" energy. In this work, a TENG array consisting of spherical TENG units based on springassisted multilayered structure is devised to scavenge water wave energy. The introduction of spring structure enhances the output performance of the spherical TENG by transforming low-frequency water wave motions into high-frequency vibrations, while the multilayered structure increases the space utilization, leading to a higher output of a spherical unit. Owing to its unique structure, the output current of one spherical TENG unit could reach 120 µA, which is two orders of magnitude larger than that of previous rolling spherical TENG, and a maximum output power up to 7.96 mW is realized as triggered by the water waves. The TENG array fabricated by integrating four units is demonstrated to successfully drive dozens of light-emitting diodes and power an electronic thermometer. This study provides a new type of TENG device with improved performance toward large-scale blue energy harvesting from the water waves.

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Section: Introductionmentioning

confidence: 99%

Spherical Triboelectric Nanogenerators Based on Spring‐Assisted Multilayered Structure for Efficient Water Wave Energy Harvesting

Xiao

Ling

Jiang

et al. 2018

Adv Funct Materials

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193

113

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“…Triboelectric nanogenerator (TENG) has provided an effective route for converting ambient mechanical energy into electricity, with unique merits of high power density, high efficiency, low weight, and low fabrication cost . Through the coupling of triboelectrification and electrostatic induction, the TENGs can harvest energy from a variety of sources, such as human walking, mechanical vibration, rotation, wind, and water waves . The TENGs exhibit obvious advantages over electromagnetic generators at low frequency, due to their fundamental differences in the physical mechanisms, demonstrating the possible killer application of TENG in harvesting low‐frequency energy from motions such as ocean waves .…”

Section: Introductionmentioning

confidence: 99%

Triboelectric Nanogenerator Networks Integrated with Power Management Module for Water Wave Energy Harvesting

Ling

Jiang

Liu

et al. 2019

Adv Funct Materials

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207

106

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Ocean waves are one of the most promising renewable energy sources for large-scope applications. Recently, triboelectric nanogenerator (TENG) network has been demonstrated to effectively harvest water wave energy possibly toward large-scale blue energy. However, the absence of effective power management severely restricts the practicability of TENGs. In this work, a hexagonal TENG network consisting of spherical TENG units based on springassisted multilayered structure, integrated with a power management module (PMM), is constructed for harvesting water wave energy. The output performance of the TENG network is found to be determined by water wave frequencies and amplitudes, as well as the wave type. Moreover, with the implemented PMM, the TENG network could output a steady and continuous direct current (DC) voltage on the load resistance, and the stored energy is dramatically improved by up to 96 times for charging a capacitor. The TENG network integrated with the PMM is also applied to effectively power a digital thermo meter and a wireless transmitter. The thermometer can constantly measure the water temperature with the water wave motions, and the transmitter can send signals that enable an alarm to go off once every 10 s. This study extends the application of the power management module in the water wave energy harvesting.

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“…Recently, the triboelectric nanogenerator (TENG), based on triboelectrification and electrostatic induction, was first reported by Wang and co‐workers in 2012; this can produce high electrical output in response to an external mechanical excitation, and thus bring about emerging techniques . Because of the advantages of high output, high energy conversion efficiency and inexpensive fabrication, TENGs have been used successfully for harvesting energy, such as from vibrations, acoustics, wind, water, and biomechanical . Furthermore, TENGs show great potential for applications as self‐powered sensors.…”

Section: Introductionmentioning

confidence: 99%

Flexible Timbo‐Like Triboelectric Nanogenerator as Self‐Powered Force and Bend Sensor for Wireless and Distributed Landslide Monitoring

Lin

Xiao

et al. 2018

Adv Materials Technologies

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As worldwide landslides frequently result in enormous casualties and huge economic losses, new landslide monitoring technologies are urgently required to develop for preventing and mitigating landslide hazard. In this paper, a self‐powered, flexible, timbo‐like triboelectric force and bend sensor (TTEFBS) is proposed and implemented, with the aim of effectively monitoring landslides. The fabricated TTEFBS, based on a single‐electrode working mode, consists of a timbo‐like inner polydimethylsiloxane (PDMS) core coated with a carbon electrode and an outer silicon rubber tube. Owing to the novel structure and sensing mechanism, the TTEFBS achieves high sensitivities (5.20 V N−1 under pressing and 1.61 V rad−1 under bending), fast response/relaxation time (<6 ms), and long‐term stability/reliability (more than 40 000 cycles). Furthermore, a wireless and distributed monitoring system using an array of TTEFBSs is developed for systematically detecting rockfalls, deep‐seated landslides, and superficial landslides. Additionally, a zigzag‐structured triboelectric nanogenerator (Z‐TENG), characterized by an open‐circuit voltage of ≈2058 V and a short‐circuit current of ≈154 µA, is successfully fabricated for scavenging energy from moving cars to provide power in wild environments, thereby forming a self‐powered monitoring system. This work may further inspire rapid progress of TENG in applications of wireless, distributed sensing, and environmental/infrastructure monitoring.

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Triboelectric Nanogenerator Tree for Harvesting Wind Energy and Illuminating in Subway Tunnel

Cited by 103 publications

References 36 publications

Spherical Triboelectric Nanogenerators Based on Spring‐Assisted Multilayered Structure for Efficient Water Wave Energy Harvesting

Spherical Triboelectric Nanogenerators Based on Spring‐Assisted Multilayered Structure for Efficient Water Wave Energy Harvesting

Triboelectric Nanogenerator Networks Integrated with Power Management Module for Water Wave Energy Harvesting

Flexible Timbo‐Like Triboelectric Nanogenerator as Self‐Powered Force and Bend Sensor for Wireless and Distributed Landslide Monitoring

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