Healable and shape-memory dual functional polymers for reliable and multipurpose mechanical energy harvesting devices

2019 ◽  
Vol 7 (27) ◽  
pp. 16267-16276 ◽  
Author(s):  
Wei Xu ◽  
Man-Chung Wong ◽  
Qiongyu Guo ◽  
Tiezheng Jia ◽  
Jianhua Hao
Keyword(s):  
Energy Harvesting ◽  
Mechanical Strength ◽  
Shape Memory ◽  
Mechanical Energy ◽  
Functional Polymers ◽  
Triboelectric Nanogenerator ◽  
Functional Polymer ◽  
Dual Functional ◽  
Energy Harvesting Devices

A healable and shape-memory dual-functional polymer (HSP) with remarkably improved mechanical strength and stimuli responses is designed for the fabrication of a triboelectric nanogenerator (TENG) with superior reliability and versatility.

A Leaf-Shaped Triboelectric Nanogenerator for Multiple Ambient Mechanical Energy Harvesting

2020 ◽  
Vol 35 (1) ◽  
pp. 25-32 ◽  
Author(s):  
Dongdong Jiang ◽  
Chi Zhang ◽  
Guoxu Liu ◽  
Wenjian Li ◽  
Tiaozhao Bu ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Mechanical Energy ◽  
Triboelectric Nanogenerator

An Ultrathin Flexible Single-Electrode Triboelectric-Nanogenerator for Mechanical Energy Harvesting and Instantaneous Force Sensing

2016 ◽  
Vol 7 (1) ◽  
pp. 1601255 ◽  
Author(s):  
Shu Wen Chen ◽  
Xia Cao ◽  
Ning Wang ◽  
Long Ma ◽  
Hui Rui Zhu ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Mechanical Energy ◽  
Force Sensing ◽  
Triboelectric Nanogenerator

scholarly journals Power Consideration in a Piezoelectric Generator

2013 ◽  
Vol 2013 ◽  
pp. 1-7
Author(s):  
Rémi Tardiveau ◽  
Frédéric Giraud ◽  
Adrian Amanci ◽  
Francis Dawson ◽  
Christophe Giraud-Audine ◽  
...  
Keyword(s):  
Phase Shift ◽  
Energy Harvesting ◽  
Resonant Frequency ◽  
Piezoelectric Material ◽  
Power Flow ◽  
Mechanical Energy ◽  
Power Losses ◽  
Vibration Excitation ◽  
Piezoelectric Generator ◽  
Energy Harvesting Devices

A piezoelectric generator converts mechanical energy into electricity and is used in energy harvesting devices. In this paper, synchronisation conditions in regard to the excitation vibration are studied. We show that a phase shift of ninety degrees between the vibration excitation and the bender’s displacement provides the maximum power from the mechanical excitation. However, the piezoelectric material is prone to power losses; hence the bender’s displacement amplitude is optimised in order to increase the amount of power which is converted into electricity. In the paper, we use active energy harvesting to control the power flow, and all the results are achieved at a frequency of 200 Hz which is well below the generator’s resonant frequency.

Microfluidic Synthesis of Polymer Ionic Liquid Gel Beads for Energy Harvesting Applications

2016 ◽  
Author(s):  
Kaushik A. Kudtarkar ◽  
Thomas W. Smith ◽  
Patricia Iglesias ◽  
Michael J. Schertzer
Keyword(s):  
Ionic Liquid ◽  
Energy Harvesting ◽  
Uv Light ◽  
Mechanical Energy ◽  
Electrostatic Energy ◽  
Chemical Compositions ◽  
Carrier Fluid ◽  
Energy Harvesters ◽  
Gel Beads ◽  
Energy Harvesting Devices

In the operation of many common devices and processes, more than 60% of consumed energy is wasted in many common processes. These loses come in many forms including heat, friction, and vibration. Energy harvesters are devices that can recapture some of this waste energy and convert it into electrical energy. This work will focus on electrostatic energy harvesting devices that recapture vibrational energy. Electrostatic energy harvesters recapture mechanical energy when a conductive mass translates or deforms in an electric field. Polymer ionic liquid gel beads may serve as a useful replacement for fluid droplets in electrostatic energy harvesters. This work uses a recently developed method for reliable synthesis of polymer gel beads. These beads are synthesized using a micro-reactor, which generates monomeric droplets in a silicon oil carrier fluid. The monomer solution also contains a photoinitiator and cross linker, which enables the monomer to polymerize when exposed to UV light. The present work demonstrates a method to rapidly synthesize uniform beads with a variety of chemical compositions. These chemical compositions can be used to tune the electromechanical properties of the beads to improve performance in applications such as energy harvesting devices.

scholarly journals Triboelectric Nanogenerators for Energy Harvesting in Ocean: A Review on Application and Hybridization

Energies ◽  
2021 ◽  
Vol 14 (18) ◽  
pp. 5600
Author(s):  
Ali Matin Matin Nazar ◽  
King-James Idala Idala Egbe ◽  
Azam Abdollahi ◽  
Mohammad Amin Hariri-Ardebili
Keyword(s):  
Energy Harvesting ◽  
Mechanical Energy ◽  
Ocean Waves ◽  
Energy Resources ◽  
Advantages And Disadvantages ◽  
Natural Energy ◽  
Electromagnetic Generators ◽  
Triboelectric Nanogenerators ◽  
High Level ◽  
Energy Harvesting Devices

With recent advancements in technology, energy storage for gadgets and sensors has become a challenging task. Among several alternatives, the triboelectric nanogenerators (TENG) have been recognized as one of the most reliable methods to cure conventional battery innovation’s inadequacies. A TENG transfers mechanical energy from the surrounding environment into power. Natural energy resources can empower TENGs to create a clean and conveyed energy network, which can finally facilitate the development of different remote gadgets. In this review paper, TENGs targeting various environmental energy resources are systematically summarized. First, a brief introduction is given to the ocean waves’ principles, as well as the conventional energy harvesting devices. Next, different TENG systems are discussed in details. Furthermore, hybridization of TENGs with other energy innovations such as solar cells, electromagnetic generators, piezoelectric nanogenerators and magnetic intensity are investigated as an efficient technique to improve their performance. Advantages and disadvantages of different TENG structures are explored. A high level overview is provided on the connection of TENGs with structural health monitoring, artificial intelligence and the path forward.

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