Stretchable and Waterproof Self-Charging Power System for Harvesting Energy from Diverse Deformation and Powering Wearable Electronics

Fu, Yi; Wang, Jie; Wang, Xiaofeng; Niu, Simiao; Li, Shengming; Liao, Qingliang; Xu, Youlong; You, Zheng; Zhang, Yue; Wang, Zhong Lin

doi:10.1021/acsnano.6b03007

Cited by 187 publications

(98 citation statements)

References 36 publications

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“…(1) High stretchablity (up to λ = 12.6 or strain ε = 1160%) and transparency (up to 96.2% average transmittance to full spectrum of visible light) are achieved, which are both much higher than those of previously reported stretchable and/or energy conversion devices using percolated conductive networks or ITO as the electrode materials ( 24 , 29 , 33 , 34 , 36 ). No performance degradation is observed at stretched states as well.…”

Section: Discussionmentioning

confidence: 94%

Ultrastretchable, transparent triboelectric nanogenerator as electronic skin for biomechanical energy harvesting and tactile sensing

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Section: Discussionmentioning

confidence: 94%

Ultrastretchable, transparent triboelectric nanogenerator as electronic skin for biomechanical energy harvesting and tactile sensing

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“…Yi et al reported a method for TENGs and highly deformable and stretchable self‐powered sensors 72. A shape‐adaptive triboelectric nanogenerator (saTENG) unit with conductive liquid as electrodes can be used to harvest various mechanical energy effectively in different motions (Figure 7D).…”

Section: Materials and Device Designmentioning

confidence: 99%

Recent Progress on Piezoelectric and Triboelectric Energy Harvesters in Biomedical Systems

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Implantable medical devices (IMDs) have become indispensable medical tools for improving the quality of life and prolonging the patient's lifespan. The minimization and extension of lifetime are main challenges for the development of IMDs. Current innovative research on this topic is focused on internal charging using the energy generated by the physiological environment or natural body activity. To harvest biomechanical energy efficiently, piezoelectric and triboelectric energy harvesters with sophisticated structural and material design have been developed. Energy from body movement, muscle contraction/relaxation, cardiac/lung motions, and blood circulation is captured and used for powering medical devices. Other recent progress in this field includes using PENGs and TENGs for our cognition of the biological processes by biological pressure/strain sensing, or direct intervention of them for some special self‐powered treatments. Future opportunities lie in the fabrication of intelligent, flexible, stretchable, and/or fully biodegradable self‐powered medical systems for monitoring biological signals and treatment of various diseases in vitro and in vivo.

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“…Though the TENG and batteries/capacitors cannot share electrodes, they can be designed to share the package or substrate, or the electrification dielectric layer of the TENG could possibly serve as the substrate/package of the batteries/supercapacitors. In this way, all‐in‐one SCPSs have been reported …”

Section: Scpss With Mechanical Energy Harvestingmentioning

confidence: 89%

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

Wang

2017

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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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Stretchable and Waterproof Self-Charging Power System for Harvesting Energy from Diverse Deformation and Powering Wearable Electronics

Cited by 187 publications

References 36 publications

Ultrastretchable, transparent triboelectric nanogenerator as electronic skin for biomechanical energy harvesting and tactile sensing

Ultrastretchable, transparent triboelectric nanogenerator as electronic skin for biomechanical energy harvesting and tactile sensing

Recent Progress on Piezoelectric and Triboelectric Energy Harvesters in Biomedical Systems

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

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