A high-output triboelectric nanogenerator based on nickel–copper bimetallic hydroxide nanowrinkles for self-powered wearable electronics

2020 ◽  
Vol 8 (48) ◽  
pp. 25995-26003
Author(s):  
Kequan Xia ◽  
Di Wu ◽  
Jiangming Fu ◽  
Nur Amin Hoque ◽  
Ying Ye ◽  
...  
Keyword(s):  
Mechanical Energy ◽  
Human Motion ◽  
Triboelectric Nanogenerator ◽  
Wearable Electronics ◽  
Nickel Copper ◽  
Self Powered ◽  
High Output

This study provides a novel wearable TENG based on nickel–copper bimetallic hydroxide nanowrinkles (NC-TENG) to harvest the mechanical energy from human motion.

A microcrystalline cellulose ingrained polydimethylsiloxane triboelectric nanogenerator as a self-powered locomotion detector

2017 ◽  
Vol 5 (7) ◽  
pp. 1810-1815 ◽  
Author(s):  
Arunkumar Chandrasekhar ◽  
Nagamalleswara Rao Alluri ◽  
Balasubramaniam Saravanakumar ◽  
Sophia Selvarajan ◽  
Sang-Jae Kim
Keyword(s):  
Microcrystalline Cellulose ◽  
Mechanical Energy ◽  
Power Source ◽  
Triboelectric Nanogenerator ◽  
Wearable Electronics ◽  
Significant Potential ◽  
Self Powered

Scavenging of ambient dissipated mechanical energy addresses the limitations of conventional batteries by providing an auxiliary voltaic power source, and thus has significant potential for self-powered and wearable electronics.

Triboelectric nanogenerators as new energy technology and self-powered sensors – Principles, problems and perspectives

2014 ◽  
Vol 176 ◽  
pp. 447-458 ◽  
Author(s):  
Zhong Lin Wang
Keyword(s):  
Energy Harvesting ◽  
Charge Density ◽  
Energy Conversion ◽  
Daily Life ◽  
Mechanical Energy ◽  
Ocean Waves ◽  
Human Motion ◽  
Triboelectric Nanogenerator ◽  
Standard Material ◽  
Self Powered

Triboelectrification is one of the most common effects in our daily life, but it is usually taken as a negative effect with very limited positive applications. Here, we invented a triboelectric nanogenerator (TENG) based on organic materials that is used to convert mechanical energy into electricity. The TENG is based on the conjunction of triboelectrification and electrostatic induction, and it utilizes the most common materials available in our daily life, such as papers, fabrics, PTFE, PDMS, Al, PVCetc.In this short review, we first introduce the four most fundamental modes of TENG, based on which a range of applications have been demonstrated. The area power density reaches 1200 W m−2, volume density reaches 490 kW m−3, and an energy conversion efficiency of ∼50–85% has been demonstrated. The TENG can be applied to harvest all kinds of mechanical energy that is available in our daily life, such as human motion, walking, vibration, mechanical triggering, rotation energy, wind, a moving automobile, flowing water, rain drops, tide and ocean waves. Therefore, it is a new paradigm for energy harvesting. Furthermore, TENG can be a sensor that directly converts a mechanical triggering into a self-generated electric signal for detection of motion, vibration, mechanical stimuli, physical touching, and biological movement. After a summary of TENG for micro-scale energy harvesting, mega-scale energy harvesting, and self-powered systems, we will present a set of questions that need to be discussed and explored for applications of the TENG. Lastly, since the energy conversion efficiencies for each mode can be different although the materials are the same, depending on the triggering conditions and design geometry. But one common factor that determines the performance of all the TENGs is the charge density on the two surfaces, the saturation value of which may independent of the triggering configurations of the TENG. Therefore, the triboelectric charge density or the relative charge density in reference to a standard material (such as polytetrafluoroethylene (PTFE)) can be taken as a measuring matrix for characterizing the performance of the material for the TENG.

Harvesting Energy of Body Motion Through Single Electrode Based Self-Powered Triboelectric Nanogenerator

2019 ◽  
Vol 14 (11) ◽  
pp. 1572-1581 ◽  
Author(s):  
Shamsuddin ◽  
Saeed Ahmed Khan ◽  
Ahmed Ali ◽  
Abdul Qadir Rahimoon ◽  
Palwasha Jalalzai
Keyword(s):  
Energy Harvesting ◽  
Human Skin ◽  
Mechanical Energy ◽  
Short Circuit ◽  
Copper Acetate ◽  
Body Motion ◽  
Triboelectric Nanogenerator ◽  
Wearable Electronics ◽  
Silicon Rubber ◽  
Self Powered

A self-powered mechanical energy harvesting system consists of the storage system and the energy scavenging TENG. Triboelectric nanogenerator includes a system which integrates a self-powered sensor and the power generator, this triboelectric nanogenerator has the potential to be used in a modern wearable electronic TENG. It has been reported that triboelectric nanogenerator working under complicated deformation like bending, stretching and twisting brings the main problem. Here we have fabricated the shape adaptive Triboelectric nanogenerator which solves all the deformation issues and can harvest the mechanical energy through human body motion in any deformation, the fabricated TENG is a self-powered sensor which can sense the different human activities and can monitor the health issues, the TENG stores the energy directly to the capacitor for powering the wearable electronics. A human skin based triboelectric nanogenerator was designed from the silicon rubber and the copper acetate-II used as the electrode, which makes the TENG flexible self-powered sensor, it can be stretched up to 200%. The stretchable nature and the flexibility of the human skin based silicon rubber triboelectric nanogenerator makes it the promising flexible and shape-adaptive energy harvesting TENG. The fabricated TENG generated the open circuit voltage 70 V and the short circuit current 11 μA and delivered the power 55 μW at the load of 80 MΩ. 42 LEDs were powered directly from the TENG. The fabricated TENG has human skin tactile property which does not harm the human skin while using it multiple times. The layer of copper acetate is completely coated with silicone rubber. The fabricated TENG is flexible, biocompatible and cost effective.

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 All-in-One Self-Powered Human–Machine Interaction System for Wireless Remote Telemetry and Control of Intelligent Cars

Nanomaterials ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 2711
Author(s):  
Tingting Zhang ◽  
Lingjie Xie ◽  
Junyan Li ◽  
Zheguan Huang ◽  
Hao Lei ◽  
...  
Keyword(s):  
Intelligent Control ◽  
Mechanical Energy ◽  
Triboelectric Nanogenerator ◽  
Stable Operation ◽  
Wearable Electronics ◽  
Human Machine Interaction ◽  
System A ◽  
Self Powered ◽  
And Control ◽  
Machine Interaction

The components in traditional human–machine interaction (HMI) systems are relatively independent, distributed and low-integrated, and the wearing experience is poor when the system adopts wearable electronics for intelligent control. The continuous and stable operation of every part always poses challenges for energy supply. In this work, a triboelectric technology-based all-in-one self-powered HMI system for wireless remote telemetry and the control of intelligent cars is proposed. The dual-network crosslinking hydrogel was synthesized and wrapped with functional layers to fabricate a stretchable fibrous triboelectric nanogenerator (SF-TENG) and a supercapacitor (SF-SC), respectively. A self-charging power unit containing woven SF-TENGs, SF-SCs, and a power management circuit was exploited to harvest mechanical energy from the human body and provided power for the whole system. A smart glove designed with five SF-TENGs on the dorsum of five fingers acts as a gesture sensor to generate signal permutations. The signals were processed by the microcontroller and then wirelessly transmitted to the intelligent car for remote telemetry and control. This work is of paramount potential for the application of various terminal devices in self-powered HMI systems with high integration for wearable electronics.

scholarly journals A Tubular Flexible Triboelectric Nanogenerator with a Superhydrophobic Surface for Human Motion Detecting

Sensors ◽  
2021 ◽  
Vol 21 (11) ◽  
pp. 3634
Author(s):  
Jianwei Wang ◽  
Zhizhen Zhao ◽  
Xiangwen Zeng ◽  
Xiyu Liu ◽  
Youfan Hu
Keyword(s):  
Energy Harvesting ◽  
Flexible Electronics ◽  
Superhydrophobic Surface ◽  
Mechanical Energy ◽  
Construction Material ◽  
Human Motion ◽  
Triboelectric Nanogenerator ◽  
Free Standing ◽  
Self Powered ◽  
Human Motion Monitoring

The triboelectric nanogenerator (TENG) is a newly arisen technology for mechanical energy harvesting from the environment, such as raindrops, wind, tides, and so on. It has attracted widespread attention in flexible electronics to serve as self-powered sensors and energy-harvesting devices because of its flexibility, durability, adaptability, and multi-functionalities. In this work, we fabricated a tubular flexible triboelectric nanogenerator (TF-TENG) with energy harvesting and human motion monitoring capabilities by employing polydimethylsiloxane (PDMS) as construction material, and fluorinated ethylene propylene (FEP) films coated with Cu as the triboelectric layer and electrode, serving in a free-standing mode. The tube structure has excellent stretchability that can be stretched up to 400%. Modifying the FEP films to obtain a superhydrophobic surface, the output performance of TF-TENG was increased by at least 100% compared to an untreated one. Finally, as the output of TF-TENG is sensitive to swing angle and frequency, demonstration of real-time monitoring of human motion state was realized when a TF-TENG was worn on the wrist.

High Output Compound Triboelectric Nanogenerator Based on Paper for Self-Powered Height Sensing System

2018 ◽  
Vol 17 (6) ◽  
pp. 1217-1223 ◽  
Author(s):  
Kequan Xia ◽  
Zhiyuan Zhu ◽  
Hongze Zhang ◽  
Chaolin Du ◽  
Rongji Wang ◽  
...  
Keyword(s):  
Triboelectric Nanogenerator ◽  
Sensing System ◽  
Self Powered ◽  
High Output

scholarly journals Light-Weight, Self-Powered Sensor Based on Triboelectric Nanogenerator for Big Data Analytics in Sports

Electronics ◽  
2021 ◽  
Vol 10 (19) ◽  
pp. 2322
Author(s):  
Xiaofei Ma ◽  
Xuan Liu ◽  
Xinxing Li ◽  
Yunfei Ma
Keyword(s):  
Big Data ◽  
Real Time ◽  
Data Analytics ◽  
Mechanical Energy ◽  
Rapid Development ◽  
Big Data Analytics ◽  
Triboelectric Nanogenerator ◽  
Light Weight ◽  
Table Tennis ◽  
Self Powered

With the rapid development of the Internet of Things (IoTs), big data analytics has been widely used in the sport field. In this paper, a light-weight, self-powered sensor based on a triboelectric nanogenerator for big data analytics in sports has been demonstrated. The weight of each sensing unit is ~0.4 g. The friction material consists of polyaniline (PANI) and polytetrafluoroethylene (PTFE). Based on the triboelectric nanogenerator (TENG), the device can convert small amounts of mechanical energy into the electrical signal, which contains information about the hitting position and hitting velocity of table tennis balls. By collecting data from daily table tennis training in real time, the personalized training program can be adjusted. A practical application has been exhibited for collecting table tennis information in real time and, according to these data, coaches can develop personalized training for an amateur to enhance the ability of hand control, which can improve their table tennis skills. This work opens up a new direction in intelligent athletic facilities and big data analytics.

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