scholarly journals Recent Progress in Triboelectric Nanogenerators as a Renewable and Sustainable Power Source

2016 ◽  
Vol 2016 ◽  
pp. 1-24 ◽  
Author(s):  
Zhiming Lin ◽  
Jun Chen ◽  
Jin Yang
Keyword(s):  
Large Scale ◽  
Sliding Mode ◽  
Mechanical Energy ◽  
Electronic Devices ◽  
Power Source ◽  
Human Motion ◽  
Free Standing ◽  
Practical Applications ◽  
Triboelectric Nanogenerators ◽  
Sustainable Power

The newly developed triboelectric nanogenerators (TENGs) provide an excellent approach to convert mechanical energy into electricity, which are mainly based on the coupling between triboelectrification and electrostatic induction. The TENG has the potential of harvesting many kinds of mechanical energies such as vibration, rotation, wind, human motion, and even water wave energy, which could be a new paradigm for scavenging large scale energy. It also demonstrates a possible route towards practical applications for powering electronic devices. This paper presents a comprehensive review of the four modes of TENGs: vertical contact-separation mode, in-plane sliding mode, single-electrode mode, and free-standing triboelectric-layer mode. The performance enhancements of TENGs for harvesting energy as a sustainable power source are also discussed. In addition, recent reports on the hybridized nanogenerator are introduced, which may enable fully self-powered electronic devices. Finally, the practical applications of TENGs for energy harvesting are presented.

scholarly journals Triboelectric nanogenerators (TENG): Factors affecting its efficiency and applications

2021 ◽  
Vol 34 (2) ◽  
pp. 157-172
Author(s):  
Deepak Anand ◽  
Singh Sambyal ◽  
Rakesh Vaid
Keyword(s):  
Large Scale ◽  
Review Paper ◽  
Mechanical Energy ◽  
Electrical Energy ◽  
Wearable Electronics ◽  
Factors Affecting ◽  
Electrostatic Induction ◽  
Triboelectric Nanogenerators ◽  
Human Motions ◽  
Great Scope

The demand for energy is increasing tremendously with modernization of the technology and requires new sources of renewable energy. The triboelectric nanogenerators (TENG) are capable of harvesting ambient energy and converting it into electricity with the process of triboelectrification and electrostatic-induction. TENG can convert mechanical energy available in the form of vibrations, rotation, wind and human motions etc., into electrical energy there by developing a great scope for scavenging large scale energy. In this review paper, we have discussed various modes of operation of TENG along with the various factors contributing towards its efficiency and applications in wearable electronics.

scholarly journals Biomechanical energy harvest based on textiles used in self-powering clothing

2020 ◽  
Vol 15 ◽  
pp. 155892502096735
Author(s):  
Li Niu ◽  
Xuhong Miao ◽  
Gaoming Jiang ◽  
Ailan Wan ◽  
Yutian Li ◽  
...  
Keyword(s):  
Flexible Electronics ◽  
High Efficiency ◽  
Structural Features ◽  
Human Motion ◽  
Energy Harvest ◽  
Triboelectric Nanogenerator ◽  
Wearable Electronics ◽  
Practical Applications ◽  
Triboelectric Nanogenerators ◽  
New Generation

Advanced triboelectric nanogenerator techniques provide a massive opportunity for the development of new generation wearable electronics, which toward multi-function and self-powering. Textiles have been refreshed with the requirement of flexible electronics in recent decades. In particular, knitted-textiles have exhibited enormous and prominent potential possibilities for smart wearable devices, which are based on the merits of high stretchability, excellent elasticity, comfortability as well as compatibility. Combined knitted textiles with nanogenerator techniques will promote the knitted textile triboelectric nanogenerators (KNGs) emerging, endowing conventional textiles with biomechanical energy harvesting and sensing energy supplied abilities. However, the design of KNGs and the construction of KNGs are based on features of human motions symbolizing considerable challenges in both high efficiency and excellent comfort. Currently, this review is concerned with KNGs construction account of triboelectric effects referring to knitted-textile classifications, structural features, human motion energy traits, working mechanisms, and practical applications. Moreover, the remaining challenges of industrial production and the future prospects of knitted-textile triboelectric nanogenerators of harvesting biomechanical energy are presented.

A rectification-free piezo-supercapacitor with a polyvinylidene fluoride separator and functionalized carbon cloth electrodes

2015 ◽  
Vol 3 (29) ◽  
pp. 14963-14970 ◽  
Author(s):  
Ruobing Song ◽  
Huanyu Jin ◽  
Xing Li ◽  
Linfeng Fei ◽  
Yuda Zhao ◽  
...  
Keyword(s):  
Energy Storage ◽  
Energy Harvesting ◽  
Polyvinylidene Fluoride ◽  
Electronic Devices ◽  
Power Source ◽  
Carbon Cloth ◽  
Sustainable Power

The integration of energy harvesting and energy storage in this device not only enables the conversion of ambient energy into electricity, but also provides a sustainable power source for various electronic devices and systems.

Graphene-based Nanogenerator: Experiments, Theories and Applications

2015 ◽  
Vol 1782 ◽  
pp. 15-21 ◽  
Author(s):  
Weiping Li ◽  
Yupeng Zhang ◽  
Chunxu Pan
Keyword(s):  
Strain Energy ◽  
Power Source ◽  
Active Sensors ◽  
Band Engineering ◽  
Potential Applications ◽  
High Structural Stability ◽  
Triboelectric Nanogenerators ◽  
Simple Assembly ◽  
Sustainable Power ◽  
Piezoelectric Nanogenerators

ABSTRACTIn addition to the piezoelectric nanogenerators and triboelectric nanogenerators, recently, the graphene-based nanogenerator has been widely concerned because of its simple assembly, flexibility and high structural stability. There are many interesting effects in graphene applied for nanogenenrators including anion adsorption in electrolyte solution, ion channels in graphene sheets network and the strain (band engineering) effect, etc. In this paper, we focus explicitly on the experimental results, mechanisms and applications of the graphene-based nanogenerator, and introduce our recent research on the graphene-based nanogenerator based on "modulation of the graphene strain-energy band effect". This nanogenerator is expected to have potential applications in active sensors and sustainable power source.

scholarly journals Wearable Woven Triboelectric Nanogenerator Utilizing Electrospun PVDF Nanofibers for Mechanical Energy Harvesting

Micromachines ◽  
2019 ◽  
Vol 10 (7) ◽  
pp. 438 ◽  
Author(s):  
Muhammad Omar Shaikh ◽  
Yu-Bin Huang ◽  
Cheng-Chien Wang ◽  
Cheng-Hsin Chuang
Keyword(s):  
Polyvinylidene Fluoride ◽  
Mechanical Energy ◽  
Wearable Devices ◽  
Human Motion ◽  
Triboelectric Nanogenerator ◽  
Free Standing ◽  
Β Phase ◽  
Applied Forces ◽  
Self Powered ◽  
High Output Voltage

Several wearable devices have already been commercialized and are likely to open up a new life pattern for consumers. However, the limited energy capacity and lifetime have made batteries the bottleneck in wearable technology. Thus, there have been growing efforts in the area of self-powered wearables that harvest ambient mechanical energy directly from surroundings. Herein, we demonstrate a woven triboelectric nanogenerator (WTENG) utilizing electrospun Polyvinylidene fluoride (PVDF) nanofibers and commercial nylon cloth to effectively harvest mechanical energy from human motion. The PVDF nanofibers were fabricated using a highly scalable multi-nozzle far-field centrifugal electrospinning protocol. We have also doped the PVDF nanofibers with small amounts of multi-walled carbon nanotubes (MWCNT) to improve their triboelectric performance by facilitating the growth of crystalline β-phase with a high net dipole moment that results in enhanced surface charge density during contact electrification. The electrical output of the WTENG was characterized under a range of applied forces and frequencies. The WTENG can be triggered by various free-standing triboelectric layers and reaches a high output voltage and current of about 14 V and 0.7 µA, respectively, for the size dimensions 6 × 6 cm. To demonstrate the potential applications and feasibility for harvesting energy from human motion, we have integrated the WTENG into human clothing and as a floor mat (or potential energy generating shoe). The proposed triboelectric nanogenerator (TENG) shows promise for a range of power generation applications and self-powered wearable devices.

scholarly journals Progress on Self-Powered Wearable and Implantable Systems Driven by Nanogenerators

Micromachines ◽  
2021 ◽  
Vol 12 (6) ◽  
pp. 666
Author(s):  
Lanxin Yang ◽  
Zhihao Ma ◽  
Yun Tian ◽  
Bo Meng ◽  
Zhengchun Peng
Keyword(s):  
Mechanical Energy ◽  
Rapid Development ◽  
Electronic Devices ◽  
High Sensitivity ◽  
Self Powered ◽  
Triboelectric Nanogenerators ◽  
The Internet Of Things ◽  
Piezoelectric Nanogenerators

With the rapid development of the internet of things (IoT), sustainable self-powered wireless sensory systems and diverse wearable and implantable electronic devices have surged recently. Under such an opportunity, nanogenerators, which can convert continuous mechanical energy into usable electricity, have been regarded as one of the critical technologies for self-powered systems, based on the high sensitivity, flexibility, and biocompatibility of piezoelectric nanogenerators (PENGs) and triboelectric nanogenerators (TENGs). In this review, we have thoroughly analyzed the materials and structures of wearable and implantable PENGs and TENGs, aiming to make clear how to tailor a self-power system into specific applications. The advantages in TENG and PENG are taken to effectuate wearable and implantable human-oriented applications, such as self-charging power packages, physiological and kinematic monitoring, in vivo and in vitro healing, and electrical stimulation. This review comprehensively elucidates the recent advances and future outlook regarding the human body’s self-powered systems.

scholarly journals Dielectric Elastomer Generator for Electromechanical Energy Conversion: A Mini Review

2021 ◽  
Vol 13 (17) ◽  
pp. 9881
Author(s):  
Kui Di ◽  
Kunwei Bao ◽  
Haojie Chen ◽  
Xinjun Xie ◽  
Jianbo Tan ◽  
...  
Keyword(s):  
Large Scale ◽  
Mechanical Energy ◽  
Electrical Energy ◽  
Fast Response ◽  
High Energy ◽  
Dielectric Elastomer ◽  
Human Motion ◽  
High Energy Density ◽  
Small Scale ◽  
Electromechanical Energy Conversion

The dielectric elastomer generator (DEG) has attracted attention in converting mechanical energy into electrical energy, due to its high energy density, fast response, and light weight, which together make DEG a promising technology for electromechanical conversion. In this article, recent research papers on DEG are reviewed. First, we present the working principles, parameters, materials, and deformation modes of DEG. Then, we introduce DEG prototypes in the field of collecting mechanical energy, including small-scale applications for wind energy and human motion energy, and large-scale applications for wave energy. At the end of the review, we discuss the challenges and perspectives of DEG. We believe that DEG will play an important role in mechanical energy harvesting in the future.

scholarly journals In Situ Sputtering Silver Induction Electrode for Stable and Stretchable Triboelectric Nanogenerators

Micromachines ◽  
2021 ◽  
Vol 12 (10) ◽  
pp. 1267
Author(s):  
Jinyuan Yao ◽  
Qi Zhang ◽  
Haodong Zhang ◽  
Mengqiu Li ◽  
Xichi Lu ◽  
...  
Keyword(s):  
Mechanical Energy ◽  
Low Frequency ◽  
Discrete Energy ◽  
Practical Applications ◽  
Vacuum Degree ◽  
Sputtering Power ◽  
Self Powered ◽  
Triboelectric Nanogenerators ◽  
Number Of Cycles

Triboelectric nanogenerators (TENG) can convert mechanical energy into electricity and exhibit unique advantages in the field of low-frequency and discrete energy harvesting. However, the interfacial state and stability between the triboelectric layer and electrode layer influence the output and applications of TENG. Herein, an in situ sputtering Ag process for fabricating induction electrodes is proposed to match with TENG. The sputtering Ag process is optimized by a variety of parameters, such as sputtering power, single-cycle time, number of cycles, cycle interval, and vacuum degree. In addition, the chemical state of Ag as a function of air placement is investigated, showing the sputtered Ag has excellent conductivity and stability. Moreover, four kinds of polymers are selected for fabricating TENGs based on the sputtered Ag induction electrodes, i.e., nylon 66, polyimide (PI), fluorinated ethylene propylene (FEP), and polydimethylsiloxane (PDMS), which shows great applicability. Considering the demand of flexible power suppliers, the sputtered Ag is integrated with a PDMS substrate, and shows good adhesion, flexibility, and ductility after severe deformation of the PDMS. Finally, the developed induction electrode processing technology is used in flexible TENG and shows great prospects in self-powered electronics for practical applications.

Introduction

2017 ◽  
pp. 1-10
Keyword(s):  
Large Scale ◽  
Sliding Mode ◽  
Future Research ◽  
Comprehensive Treatment ◽  
Sampled Data ◽  
Practical Applications ◽  
Data Control ◽  
Control Event ◽  
S Model ◽  
Takagi Sugeno

The book presents a foundational and comprehensive treatment of the analysis and design tasks for large-scale nonlinear interconnected systems based on the Takagi-Sugeno (T-S) model. Expect stability analysis, an emphasis is laid on the derivation of methods which have a decentralized or a distributed control structure. These include sampled-data control, event-triggered control, sliding mode control, practical applications, and last but not the least, conclusions and future research. The proposed methodologies provide effective techniques to overcome specific difficulties in the considered systems, such as high dimensionality, interconnections, and coupling nonlinearities.

A facile mechanical energy harvester based on spring assisted triboelectric nanogenerators

2021 ◽  
Vol 5 (20) ◽  
pp. 5287-5294
Author(s):  
Harris Varghese ◽  
Achu Chandran
Keyword(s):  
Energy Harvester ◽  
Mechanical Energy ◽  
Electronic Devices ◽  
Finger Tapping ◽  
Triboelectric Nanogenerators ◽  
Electrical Output

A facile, scalable and robust spring assisted TENG (Sa-TENG) based on PVDF and PMMA films is developed without any complex fabrication steps. The Sa-TENG generated an electrical output of 120 V and 150 μA m−2 from finger tapping force and powered various electronic devices.

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