Rationally Segmented Triboelectric Nanogenerator with Constant Direct-Current Output and Low Crest Factor

2021 ◽  
Author(s):  
Pengfei Chen ◽  
Jie An ◽  
Renwei Cheng ◽  
Sheng Shu ◽  
Andy Berbille ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Direct Current ◽  
Triboelectric Nanogenerator ◽  
Crest Factor ◽  
Current Output ◽  
Practical Applications ◽  
Triboelectric Nanogenerators

Despite great potential of triboelectric nanogenerators (TENGs) as a promising energy harvesting technology, their practical applications are still hindered by their pulsed outputs with high crest factor. Here, through a...

Sustainable direct current powering a triboelectric nanogenerator via a novel asymmetrical design

2018 ◽  
Vol 11 (8) ◽  
pp. 2057-2063 ◽  
Author(s):  
Hanjun Ryu ◽  
Jeong Hwan Lee ◽  
Usman Khan ◽  
Sung Soo Kwak ◽  
Ronan Hinchet ◽  
...  
Keyword(s):  
Direct Current ◽  
Triboelectric Nanogenerator ◽  
Current Output ◽  
Phase Rotation ◽  
Triboelectric Nanogenerators ◽  
Multi Phase ◽  
Asymmetrical Design

Multi-phase rotation-type triboelectric nanogenerators generate an almost constant direct current output, which overcomes the typical limitation of triboelectric nanogenerators.

scholarly journals Rationally patterned electrode of direct-current triboelectric nanogenerators for ultrahigh effective surface charge density

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Zhihao Zhao ◽  
Yejing Dai ◽  
Di Liu ◽  
Linglin Zhou ◽  
Shaoxin Li ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Charge Density ◽  
Surface Charge ◽  
Direct Current ◽  
Surface Charge Density ◽  
Large Scale ◽  
Triboelectric Nanogenerator ◽  
Electrode Structure ◽  
Effective Surface ◽  
Self Powered

AbstractAs a new-era of energy harvesting technology, the enhancement of triboelectric charge density of triboelectric nanogenerator (TENG) is always crucial for its large-scale application on Internet of Things (IoTs) and artificial intelligence (AI). Here, a microstructure-designed direct-current TENG (MDC-TENG) with rationally patterned electrode structure is presented to enhance its effective surface charge density by increasing the efficiency of contact electrification. Thus, the MDC-TENG achieves a record high charge density of ~5.4 mC m−2, which is over 2-fold the state-of-art of AC-TENGs and over 10-fold compared to previous DC-TENGs. The MDC-TENG realizes both the miniaturized device and high output performance. Meanwhile, its effective charge density can be further improved as the device size increases. Our work not only provides a miniaturization strategy of TENG for the application in IoTs and AI as energy supply or self-powered sensor, but also presents a paradigm shift for large-scale energy harvesting by TENGs.

scholarly journals Paper-based triboelectric nanogenerators and their applications: a review

2021 ◽  
Vol 12 ◽  
pp. 151-171
Author(s):  
Jing Han ◽  
Nuo Xu ◽  
Yuchen Liang ◽  
Mei Ding ◽  
Junyi Zhai ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Three Dimensional ◽  
Human Machine Interaction ◽  
Practical Applications ◽  
Energy Devices ◽  
Paper Electronics ◽  
Facile Fabrication ◽  
Self Powered ◽  
Triboelectric Nanogenerators ◽  
Energy Harvesting Devices

The development of industry and of the Internet of Things (IoTs) have brought energy issues and huge challenges to the environment. The emergence of triboelectric nanogenerators (TENGs) has attracted wide attention due to their advantages, such as self-powering, lightweight, and facile fabrication. Similarly to paper and other fiber-based materials, which are biocompatible, biodegradable, environmentally friendly, and are everywhere in daily life, paper-based TENGs (P-TENGs) have shown great potential for various energy harvesting and interactive applications. Here, a detailed summary of P-TENGs with two-dimensional patterns and three-dimensional structures is reported. P-TENGs have the potential to be used in many practical applications, including self-powered sensing devices, human–machine interaction, electrochemistry, and highly efficient energy harvesting devices. This leads to a simple yet effective way for the next generation of energy devices and paper electronics.

scholarly journals 3D Printed Double Roller-Based Triboelectric Nanogenerator for Blue Energy Harvesting

Micromachines ◽  
2021 ◽  
Vol 12 (9) ◽  
pp. 1089
Author(s):  
Inkyum Kim ◽  
Daewon Kim
Keyword(s):  
Energy Harvesting ◽  
Water Waves ◽  
Load Resistance ◽  
Triboelectric Nanogenerator ◽  
Electrode Structure ◽  
A Value ◽  
Covered Area ◽  
Covered Electrodes ◽  
3D Printed ◽  
Triboelectric Nanogenerators

The ocean covers 70% of the earth’s surface and is one of the largest uncultivated resources still available for harvesting energy. The triboelectric energy harvesting technology has the potential to effectively convert the ocean’s “blue energy” into electricity. A half-cylinder structure including rollers floating on the water has already been used, in which the pendulum motion of the rollers is driven by the waveform. For the stable motion of the rollers, the printed surface of the device was treated with acetone for attaining hydrophilicity. The electrical outputs with the proposed device were enhanced by increasing the contact surface area by simply implementing the double roller structure with double side-covered electrodes. With the optimized structure, the maximum power density reached a value of 69.34 µW m−2 at a load resistance of 200 MΩ with the device’s high output durability. Finally, the fabricated device was also applied to the artificial water waves to demonstrate the possibility of using this device in the ocean. By simply modifying the electrode structure and adding a roller, this device demonstrated the ability to generate over 160% of electrical output with the same covered area of the ocean by the triboelectric nanogenerators (TENGs) and potential ocean application.

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.

scholarly journals A novel retractable spring-like-electrode triboelectric nanogenerator with highly-effective energy harvesting and conversion for sensing road conditions

RSC Advances ◽  
2017 ◽  
Vol 7 (80) ◽  
pp. 50993-51000 ◽  
Author(s):  
Xiude Yang ◽  
Juanjuan Han ◽  
Fei Wu ◽  
Xi Rao ◽  
Guangdong Zhou ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Energy Supply ◽  
Single Layer ◽  
Triboelectric Nanogenerator ◽  
Effective Energy ◽  
Highly Effective ◽  
Triboelectric Nanogenerators

Integrated multi-layer structural triboelectric nanogenerators (TENGs) have been verified as an effective approach to solving the insufficient energy supply to single-layer devices.

scholarly journals Selection rules of triboelectric materials for direct-current triboelectric nanogenerator

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Zhihao Zhao ◽  
Linglin Zhou ◽  
Shaoxin Li ◽  
Di Liu ◽  
Yanhong Li ◽  
...  
Keyword(s):  
Charge Density ◽  
Direct Current ◽  
High Performance ◽  
Rapid Development ◽  
Utilization Rate ◽  
Triboelectric Nanogenerator ◽  
Distributed Energy ◽  
Selection Rules ◽  
Practical Applications ◽  
Basic Parameters

AbstractThe rapid development of Internet of Things and artificial intelligence brings increasing attention on the harvesting of distributed energy by using triboelectric nanogenerator (TENG), especially the direct current TENG (DC-TENG). It is essential to select appropriate triboelectric materials for obtaining a high performance TENG. In this work, we provide a set of rules for selecting the triboelectric materials for DC-TENG based on several basic parameters, including surface charge density, friction coefficient, polarization, utilization rate of charges, and stability. On the basis of the selection rules, polyvinyl chloride, used widely in industry rather than in TENG, is selected as the triboelectric layer. Its effective charge density can reach up to ~8.80 mC m−2 in a microstructure-designed DC-TENG, which is a new record for all kinds of TENGs. This work can offer a basic guideline for the triboelectric materials selection and promote the practical applications of DC-TENG.

Bulk Pt/CsPbBr3 Schottky junctions for charge boosting in robust triboelectric nanogenerators

2020 ◽  
Vol 8 (24) ◽  
pp. 11966-11975 ◽  
Author(s):  
Guixiang Xie ◽  
Xiya Yang ◽  
Jialong Duan ◽  
Yanyan Duan ◽  
Qunwei Tang
Keyword(s):  
Short Circuit ◽  
Short Circuit Current ◽  
Triboelectric Nanogenerator ◽  
Current Output ◽  
Schottky Junctions ◽  
Triboelectric Nanogenerators

Bulk Pt/CsPbBr3 Schottky junctions are built in a perovskite triboelectric nanogenerator to increase the short-circuit current output.

A Triboelectric Nanogenerator (TENG) for Pipeline Monitoring

2018 ◽  
Author(s):  
M. Taylan Das ◽  
Kavinaath Murugan ◽  
Adam Tetreault ◽  
Connor Irvine ◽  
Andrej Rosic ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Output Power ◽  
Vibrational Energy ◽  
Triboelectric Nanogenerator ◽  
Alternative Materials ◽  
Oil Pipelines ◽  
Triboelectric Nanogenerators ◽  
Surface Modified ◽  
Vibrational Energy Harvesting ◽  
Triboelectric Energy Harvesting

In this study, we present triboelectric nanogenerators (TENGs) for vibrational energy harvesting in oil pipelines. The generators are designed to replenish the batteries of leak detection sensor, thereby increasing their lifespan and reducing the need for maintenance. The TENGs were designed to harvest energy from a 12-inch diameter pipeline, vibrating with at 32 Hz. Three alternative materials were used for the upper plate of a 4 × 4 cm TENG, namely Polytetrafluoroethylene (PTFE), unstructured polydimethylsiloxane (PDMS) and structured PDMS. Tests revealed that the unstructured PDMS TENG outperformed the PTFE TENG and generated 47.6 μW of power. Structuring the PDMS by patterning open channels on half of the surface increased the output power to 200.0 μW. When the spring constant of the structured PDMS TENG was optimized, the output power was further increased to 297.7 μW. These results demonstrate that structured PDMS shows promise in triboelectric energy harvesting, specifically because it can be surface-modified using inexpensive techniques that do not require a clean room.

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