All flexible electrospun papers based self-charging power system

Sun, Na; Wen, Zhen; Zhao, Feipeng; Yang, Yanqin; Shao, Huiyun; Zhou, Changjie; Shen, Qian; Feng, Kun; Peng, Mingfa; Li, Yanguang; Sun, Xuhui

doi:10.1016/j.nanoen.2017.05.048

Cited by 102 publications

(65 citation statements)

References 40 publications

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“…The supercapacitors can be charged with human motion energies, and the SCPS can also serve as a human activity sensor. Sun et al reported a flexible paper‐based SCPS that both the TENG and supercapacitors were made of electrospun membranes . Dong et al recently proposed a stretchable and washable all‐yarn‐based self‐charging power textile by knitting fiber TENGs and supercapacitors together …”

Section: Scpss With Mechanical Energy Harvestingmentioning

confidence: 99%

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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Section: Scpss With Mechanical Energy Harvestingmentioning

confidence: 99%

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

Wang

2017

Small

297

161

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“…As presented in Figs. 5a-f and 6a-d, the LIBs and supercapacitors were based on triboelectric nanogenerators [18][19][20][21][22][23][24][25][26][27][28]. Figure 5a displays the schematic diagrams of all-solidstate transparent and flexible supercapacitors (TFSCs) based on interdigital electrodes of 3D Au@MnO 2 nanocomposites, which were connected to form an array on the backside of the nanogenerator [18].…”

Section: Li-ion Batteries and Supercapacitorsmentioning

confidence: 99%

“…They can be applied to wireless sensors and microelectronics devices. Currently, research and development of selfpowered electronic devices have become a hot topic among scientists [11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28]. In particular, remarkable progress has been made in the field of self-charging power textile for wearable electronics [29][30][31][32][33].…”

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Nanogenerator-Based Self-Charging Energy Storage Devices

et al. 2019

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HIGHLIGHTS• The progress of nanogenerator-based self-charging energy storage devices is summarized.• The fabrication technologies of nanomaterials, device designs, working principles, self-charging performances, and the potential application fields of self-charging storage devices are presented and discussed.• Some perspectives and problems that need to be solved are described.ABSTRACT One significant challenge for electronic devices is that the energy storage devices are unable to provide sufficient energy for continuous and long-time operation, leading to frequent recharging or inconvenient battery replacement. To satisfy the needs of next-generation electronic devices for sustainable working, conspicuous progress has been achieved regarding the development for nanogenerator-based self-charging energy storage devices. Herein, the development of the self-charging energy storage devices is summarized. Focus will be on preparation of nanomaterials for Li-ion batteries and supercapacitors, structural design of the nanogenerator-based self-charging energy storage devices, performance testing, and potential applications.Moreover, the challenges and perspectives regarding self-charging energy storage devices are also discussed.

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“…In particular, the fibrous structure can remarkably reduce the density of the materials; thus, it can effectively "soften" the substance with a lightweight feature. Many researchers develop copious types of novel soft materials, which have been widely utilized for tissue scaffold [32,33], wound dressing [34], fibrous membrane for catalyst [35], energy cell [36], and electrochemical [37] and mechanical [38] sensors. These active developments profit from the fascinating matrix based on nanofibrous structure, which extensively adapts to many fields as supporting materials.…”

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confidence: 99%

Functional Polymer Solutions and Gels—Physics and Novel Applications

Stadler

2020

Polymers

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Recent years have seen significant improvements in the understanding of functional soft matter. Advances in organic chemistry have identified a wide variety of possible interactions, ranging from hydrophobic interactions, e.g., based on cyclodextrin or hydrophobic end-capping, host-guest interactions, and multiple hydrogen bonding to metal-ligand bonding, such as for terpyridines and catechols. Those functional moieties can link polymer chains, usually in aqueous solution, and thus assemble these solutions into gels. These discoveries of the last ca. 30 years by chemists worldwide have made it possible to understand biological soft matter significantly better, as well as to create our own soft materials with tailored properties, such as a pH-controlled behavior. Their current and future applications are often focused on the biomedical field, particularly on drug release and tissue engineering. However, functional polymer solutions and gels can also be envisioned for many other applications. For example, functional nanofibers electrospun from solution can also be used for advanced applications. The resulting nanofibers combine an incredible highly specific surface area with an excellent performance as membranes with high flux, good separator selectivity, as well as extraordinary selective absorption for both functional nanoparticles and pollutants in water.This Special Issue of Polymers attracted contributions from several diverse fields of polymers which can only exemplarily illustrate the broadness of the topic of polymer solutions and gels.Polymers with special moieties, leading to thermoresponsive and stimuli-responsive behavior, was one of the main topics.Yan et al.[1] studied the interactions between tacticity of poly (N-iso-propylacrylamide) PNIPAM and 1-butyl-3-methylimidazolium bis(trifluoromethanesulfonyl) imide ([BMIM][TFSI]) ionic liquid, in which a higher isotaxy of PNIPAM leads to a higher amount of interaction and, consequently, to more temperature stable gels, i.e., to an increased upper critical solution temperature. Interestingly, the results show that it is possible to have a decoupling of gelation and turbidity, which is counterintuitive and expands upon earlier knowledge on the physicochemical behavior of PNIPAM in ionic liquids [2]. These results show the relevance of ionic liquids for the solubilization of polymers, which has revolutionized the unwrapping of tightly packed crystalline cellulose [3][4][5][6].Polymer solutions with catechol functionalities were shown to significantly influence thermoresponsive behavior as well as the end groups, which could be modeled statistically, demonstrating the combined effects of the end groups derived from the rather hydrophobic RAFT agents and catechol groups [7], which has led to further elucidation as well as confirmed previous observations on the properties of thermoresponsive polymers containing catechol moieties [8,9]. This work also extends on previous reports on PNIPAM-based polymer with other structures [10][11][12]. Similarly to catechols, te...

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All flexible electrospun papers based self-charging power system

Cited by 102 publications

References 40 publications

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

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

Nanogenerator-Based Self-Charging Energy Storage Devices

Functional Polymer Solutions and Gels—Physics and Novel Applications

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