All‐Plastic‐Materials Based Self‐Charging Power System Composed of Triboelectric Nanogenerators and Supercapacitors

Wang, Jie; Wen, Zhen; Zi, Yunlong; Zhou, Pengfei; Lin, Jun; Guo, Hengyu; Xu, Youlong; Wang, Zhong Lin

doi:10.1002/adfm.201504675

Cited by 199 publications

(143 citation statements)

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“…There are two main ways of integrating including assembling SC array and connecting TENG in parallel respectively. [65] Figure 10d shows that the three TENGs are connected in parallel with a rectifier to charge four SCs in series. [64] The MSC has a high capacitance of approximately 10.29 mF cm −2 when the current density is 0.01 mA cm −2 .…”

Section: Integration With Supercapacitors For Self-powered Systemmentioning

confidence: 99%

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Triboelectric Nanogenerators Driven Self‐Powered Electrochemical Processes for Energy and Environmental Science

Cao

Yang

Wang

et al. 2016

Advanced Energy Materials

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412

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reduction and oxidation reactions occur at the corresponding electrode/electrolyte interface. As a result, the electrons flow orderly to do work with very high energy conversion efficiency. In the last two decades, a drastic change occurring in the world should be the rapid growth of information technology. The ever growing market of portable electrical apparatus raises the demand of portable and customized batteries as power sources. [1] Although the development of modern batteries like fuel cell and lithium ion (Li-ion) battery is also very fast, [2] monitoring, replacing and recycling trillions of batteries are especially arduous because of the vast distribution and short cycle lifetime. Besides, there are growing challenges from the dependence on limited fossil fuel, the demand of growing population and the concern about environmental degradation etc. So it is especially necessary to develop renewable power sources which are high-efficient, clean and sustainable.Triboelectrification (also named as contact electrification) is a wide effect around us, which usually needs to be prevented as the negative effect in many systems. In 2012, triboelectric nanogenerator (TENG) was invented to use triboelectricity for converting mechanical energy into electricity by Wang research group, which is a revolutionary breakthrough in the technology of energy conversion and utilization. [3] Traditional triboelectric generator can only accumulate static charges generated by triboelectrification, but there is no current unless there is a discharging. [4] However, the novel TENG can drive electrons to produce electricity via coalescing electrostatic induction with contact electrification. In the early period, TENG is mainly developed as micro-scale power source, which is used to supply for small portable electric apparatus. With the fast development of TENG, lots of work has been done to explore new approaches to effectively harvesting different forms of water power, namely macro-scale blue energy. [5] As for the development of nanotechnology, there are generally five steps in research: the fabrication of nanomaterials, the property of nanomaterials, the single nanodevice, an array of nanodevices, and the integration of system. With the new emergence of TENG, research in self-powered systems is fast expanding into many fields. [4,6] The rapid advancement of TENG gradually shifts its focus from the discrete devices to more complex integrated systems, which can perform multiple functions. Such integrated systems are expected to work sustainably Ever since the discovery of triboelectric nanogenerator (TENG) by Wang's group in January 2012, various breakthroughs have been achieved in the fundamental mechanisms of TENG as well as the demonstrated self-powered systems. TENG has shown many advantages in micro-scale energy harvesting for applications in sensors and portable devices. As a self-sufficient power source, TENG can be used in conjunction with electrochemical processes as self-powered electrochemistry without the use of exter...

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Section: Integration With Supercapacitors For Self-powered Systemmentioning

confidence: 99%

“…Self-charging power system with supercapacitor for self-powered system. [65] Figure 11d. The enlarged view shows two black yarn SCs.…”

Section: Sustainable Flexible-power-unit By Charging Lithium Ion Batterymentioning

confidence: 99%

Triboelectric Nanogenerators Driven Self‐Powered Electrochemical Processes for Energy and Environmental Science

Cao

Yang

Wang

et al. 2016

Advanced Energy Materials

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412

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“…RuO 2 ‐coated carbon fiber was used as the capacitive electrode (CE), and conductive carbon fiber was used as an electrode in a flexible TENG. Three supercapacitors connected in series can be charged by the TENG and later can be discharged at 1.4 µA for 258 s. An all‐plastic SCPS was also reported by this team by using conductive polymer (polypyrrole) as both capacitive active materials in a supercapacitor and the conductive electrode in the TENG . Later, this team further developed a self‐sustainable SCPS with parallel tubular‐shaped TENG and LIB with LiMn 2 O 4 as cathode active materials .…”

Section: Scpss With Mechanical Energy Harvestingmentioning

confidence: 82%

Toward Wearable Self‐Charging Power Systems: The Integration of Energy‐Harvesting and Storage Devices

Wang

2017

Small

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devices) of electronics miniature, thin, lightweight, flexible, foldable, stretchable, self-healable, implantable, or wearable. [2][3][4] One of the key challenges for wearable electronics is to find suitable and sustainable power sources. Electrochemical energy-storage devices, especially rechargeable lithium-ion batteries (LIBs), have been widely applied and successfully promoted the thriving growth of portable electronics for decades. However, stateof-the-art batteries' technology is, increasingly, becoming a bottleneck for the rapid advancements of wearable electronics for the following reasons: first, the high power consumption of multifunctional electronics requires energy-storage devices with higher energy in smaller volume or lighter weight so that longer operational time or less frequent recharging can be achieved for the convenience of consumers; second, batteries or supercapacitors typically feature a configuration of stacked planar porous electrodes with inorganic oxide-, phosphate-, or hydroxidebased active materials, which make them hard to be flexible or stretchable. [5,6] Tremendous efforts have been dedicated to improve the energy density of batteries or supercapacitors, [7,8] or developing flexible/wearable batteries/supercapacitors. [9] These progresses have been summarized in other reviews and will not be included here. [10][11][12] Despite these advancements, the battery or supercapacitor, still, can hardly meet the above requirements of wearable electronics. [13] Therefore, extensive research interest recently turns to the assistance of energyharvesting or conversion devices, in a way that energy-storage and -harvesting technologies are combined into self-charging power systems (SCPSs) for wearable electronics, as schematically illustrated in Figure 1. [14][15][16] Energy-storage and -harvesting technologies have always been two blades of a sword. Renewable energy resources (e.g., solar, wind, vibration, or biomass) are highly dependent on when and where they are available, which makes energy-storage devices (e.g., battery, capacitors, pump hydro, or compressed air) indispensable for stable or smart power supply. Portable/ wearable energy-storage devices possess limited energy, making it an effective strategy to utilize wearable energy-harvesting devices to compensate the energy consumption of the batteries/ supercapacitors, so as to elongate the operational time, reduce the recharging frequency, or even form a self-sufficient power system for the electronics. Various technologies have been developed to convert the environmental energies into electricity, One major challenge for wearable electronics is that the state-of-the-art batteries are inadequate to provide sufficient energy for long-term operations, leading to inconvenient battery replacement or frequent recharging. Other than the pursuit of high energy density of secondary batteries, an alternative approach recently drawing intensive attention from the research community, is to integrate energy-generation and energy-storage devices ...

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“…[1][2][3][4][5] There are plenty sources of mechanical energy in our everyday life like human motion, walking, touching, running, and also in environment for instance wind, flowing water as well as moving objects such as rotating tires, triggers, and touch-pads. Consequently, recently energy harvesting from environment has been investigated widely and become a promising substitute for typical sustainable energy generators.…”

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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All‐Plastic‐Materials Based Self‐Charging Power System Composed of Triboelectric Nanogenerators and Supercapacitors

Cited by 199 publications

References 43 publications

Triboelectric Nanogenerators Driven Self‐Powered Electrochemical Processes for Energy and Environmental Science

Triboelectric Nanogenerators Driven Self‐Powered Electrochemical Processes for Energy and Environmental Science

Toward Wearable Self‐Charging Power Systems: The Integration of Energy‐Harvesting and Storage Devices

Flexible Triboelectric Nanogenerator Based on High Surface Area TiO₂ Nanotube Arrays

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All‐Plastic‐Materials Based Self‐Charging Power System Composed of Triboelectric Nanogenerators and Supercapacitors

Cited by 199 publications

References 43 publications

Triboelectric Nanogenerators Driven Self‐Powered Electrochemical Processes for Energy and Environmental Science

Triboelectric Nanogenerators Driven Self‐Powered Electrochemical Processes for Energy and Environmental Science

Toward Wearable Self‐Charging Power Systems: The Integration of Energy‐Harvesting and Storage Devices

Flexible Triboelectric Nanogenerator Based on High Surface Area TiO2 Nanotube Arrays

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Flexible Triboelectric Nanogenerator Based on High Surface Area TiO₂ Nanotube Arrays