Breathable, washable and wearable woven-structured triboelectric nanogenerators utilizing electrospun nanofibers for biomechanical energy harvesting and self-powered sensing

Nano Energy ◽  
2021 ◽  
Vol 80 ◽  
pp. 105549 ◽  
Author(s):  
Xiaoyang Guan ◽  
Bingang Xu ◽  
Mengjie Wu ◽  
Titao Jing ◽  
Yujue Yang ◽  
...  
Nanoscale ◽  
2019 ◽  
Vol 11 (15) ◽  
pp. 7199-7208 ◽  
Author(s):  
Wei Zhong ◽  
Liang Xu ◽  
Xiaodan Yang ◽  
Wei Tang ◽  
Jiajia Shao ◽  
...  

Open-book-like triboelectric nanogenerators enable highly effective wave energy harvesting with enhanced power and charge output for self-powered marine systems.


2021 ◽  
Vol 12 ◽  
pp. 151-171
Author(s):  
Jing Han ◽  
Nuo Xu ◽  
Yuchen Liang ◽  
Mei Ding ◽  
Junyi Zhai ◽  
...  

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.


Polymers ◽  
2020 ◽  
Vol 12 (11) ◽  
pp. 2697
Author(s):  
Fatemeh Mokhtari ◽  
Mahnaz Shamshirsaz ◽  
Masoud Latifi ◽  
Javad Foroughi

The demands for wearable technologies continue to grow and novel approaches for powering these devices are being enabled by the advent of new energy materials and novel manufacturing strategies. In addition, decreasing the energy consumption of portable electronic devices has created a huge demand for the development of cost-effective and environment friendly alternate energy sources. Energy harvesting materials including piezoelectric polymer with its special properties make this demand possible. Herein, we develop a flexible and lightweight nanogenerator package based on polyvinyledene fluoride (PVDF)/LiCl electrospun nanofibers. The piezoelectric performance of the developed nanogenator is investigated to evaluate effect of the thickness of the as-spun mat on the output voltage using a vibration and impact test. It is found that the output voltage increases from 1.3 V to 5 V by adding LiCl as additive into the spinning solution compared with pure PVDF. The prepared PVDF/LiCl nanogenerator is able to generate voltage and current output of 3 V and 0.5 μA with a power density output of 0.3 μW cm−2 at the frequency of 200 Hz. It is found also that the developed nanogenerator can be utilized as a sensor to measure temperature changes from 30 °C to 90 °C under static pressure. The developed electrospun temperature sensor showed sensitivity of 0.16%/°C under 100 Pa pressure and 0.06%/°C under 220 Pa pressure. The obtained results suggested the developed energy harvesting textiles have promising applications for various wearable self-powered electrical devices and systems.


RSC Advances ◽  
2021 ◽  
Vol 11 (28) ◽  
pp. 17437-17444
Author(s):  
Guoxia Li ◽  
Longwei Li ◽  
Panpan Zhang ◽  
Caiyun Chang ◽  
Fan Xu ◽  
...  

An ultra-stretchable and self-healing hydrogel is developed with graphene oxide and Laponite as collaborative physical crosslinking points, which is utilized in triboelectric nanogenerators for mechanical energy harvesting and self-powered sensing.


Materials ◽  
2020 ◽  
Vol 13 (21) ◽  
pp. 4980
Author(s):  
Tiago Rodrigues-Marinho ◽  
Nelson Castro ◽  
Vitor Correia ◽  
Pedro Costa ◽  
Senentxu Lanceros-Méndez

Energy harvesting systems for low-power devices are increasingly being a requirement within the context of the Internet of Things and, in particular, for self-powered sensors in remote or inaccessible locations. Triboelectric nanogenerators are a suitable approach for harvesting environmental mechanical energy otherwise wasted in nature. This work reports on the evaluation of the output power of different polymer and polymer composites, by using the triboelectric contact-separation systems (10 N of force followed by 5 cm of separation per cycle). Different materials were used as positive (Mica, polyamide (PA66) and styrene/ethylene-butadiene/styrene (SEBS)) and negative (polyvinylidene fluoride (PVDF), polyurethane (PU), polypropylene (PP) and Kapton) charge materials. The obtained output power ranges from 0.2 to 5.9 mW, depending on the pair of materials, for an active area of 46.4 cm2. The highest response was obtained for Mica with PVDF composites with 30 wt.% of barium titanate (BT) and PA66 with PU pairs. A simple application has been developed based on vertical contact-separation mode, able to power up light emission diodes (LEDs) with around 30 cycles to charge a capacitor. Further, the capacitor can be charged in one triboelectric cycle if an area of 0.14 m2 is used.


2017 ◽  
Vol 5 (24) ◽  
pp. 12252-12257 ◽  
Author(s):  
Meng Wang ◽  
Nan Zhang ◽  
Yingjie Tang ◽  
Heng Zhang ◽  
Chuan Ning ◽  
...  

A single-electrode triboelectric nanogenerator (S-TENG) based on sponge-like porous polytetrafluoroethylene (PTFE) thin films was developed.


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