TOP PAGE
ENGLISH
JAPANESE
|
CONNECT WITH US:
Home
About
Services
Contact
Log in
Home
Press release
Feb 18, 2022 20:00 JST
Source:
Science and Technology of Advanced Materials
Portable generator powers small safety devices
The compact, lightweight device generates electricity when shaken and can power 100 LEDs.
TSUKUBA, Japan, Feb 18, 2022 - (ACN Newswire) - A new stick-like, water-based device can convert energy from movement into electricity. The technology, which was reported in the journal Science and Technology of Advanced Materials, could be used to power portable devices, such as safety lights.
The portable stick generator can be used to power a safety traffic light baton with 100 LEDs.
With the growing interest in the internet of things and small electronics, there is high demand for portable energy sources. One way to produce power is to harvest energy from the environment, such as thermal, solar or mechanical energy. To capture mechanical energy - the power an object gets from its position and motion - scientists have developed triboelectric nanogenerators, which can produce electricity through friction.
"Triboelectric nanogenerators are one of the most effective tools for harvesting mechanical energy because of their high electrical output, low cost and easy accessibility," professor Sangmin Lee of Chung-ang University in the Republic of Korea.
Triboelectric generators are electrically charged when two dissimilar materials touch and then separate. For example, when a balloon is rubbed on clothing, the balloon becomes charged and can stick to things. However, friction between two materials inevitably causes damage, reducing device lifespan.
Using liquids can reduce friction, but liquid-based generators have a considerably lower electrical output than solid ones. There is also a trade-off between making the device large enough for the liquid to move and generate electricity, while also ensuring it is compact enough to be portable.
To overcome these problems, researchers at Chung-ang University, together with colleagues in South Korea and the US, developed a lightweight, compact, water-based generator that can produce electrical power when shaken.
The device has a simple stick-like design and consists of 10ml of water, a polymer cylinder and electrodes. The container's polymer material is negatively charged. The water moves up and down when the device is shaken, acquiring a positive charge that is transferred to the electrodes to generate a high electrical output.
"Because of its simple mechanism and design, this small and lightweight device could be used in everyday life. Electrical power can be produced simply by pouring water into the generator then giving it a shake," explains Lee.
The researchers tested different designs, changing the size and ratio of the electrodes, the physical space between the electrodes and the amount of water in order to determine the optimal combination. They found that the portable stick generator could generate a high electrical output reaching 710 volts when it had adequate space for water movement and a high electrode area.
The researchers showed that the generator can power 100 LED lights, meaning it could be used as a traffic safety light baton that illuminates when shaken. This study demonstrates the potential for triboelectric nanogenerators to be used for a wide range of everyday applications.
Further information
Sangmin Lee
Chung-ang University
Email:
slee98@cau.ac.kr
Research paper:
https://doi.org/10.1080/14686996.2022.2030195
About Science and Technology of Advanced Materials (STAM)
Open access journal STAM publishes outstanding research articles across all aspects of materials science, including functional and structural materials, theoretical analyses, and properties of materials.
https://www.tandfonline.com/STAM
Dr. Yoshikazu Shinohara
STAM Publishing Director
Email:
SHINOHARA.Yoshikazu@nims.go.jp
Press release distributed by Asia Research News for Science and Technology of Advanced Materials.
Source: Science and Technology of Advanced Materials
Sectors: Electronics, Science & Nanotech, Alternative Energy, Engineering
Copyright ©2025 ACN Newswire. All rights reserved. A division of Asia Corporate News Network.
Related Press Release
High-brilliance radiation quickly finds the best composition for half-metal alloys
January 28 2025 08:00 JST
Machine learning used to optimise polymer production
December 03 2024 23:15 JST
Machine learning can predict the mechanical properties of polymers
October 25 2024 23:00 JST
Dual-action therapy shows promise against aggressive oral cancer
July 30 2024 20:00 JST
A new spin on materials analysis
April 17 2024 22:00 JST
Kirigami hydrogels rise from cellulose film
April 12 2024 18:00 JST
Sensing structure without touching
February 27 2024 08:00 JST
Nano-sized probes reveal how cellular structure responds to pressure
November 21 2023 07:00 JST
Machine learning techniques improve X-ray materials analysis
November 17 2023 10:00 JST
A bio-inspired twist on robotic handling
November 14 2023 20:00 JST
More Press release >>
Latest Press Release
Mazda to Strengthen Production and Sales Systems in Thailand
Feb 14, 2025 17:04 JST
Toyota Develops New Fuel Cell System
Feb 14, 2025 15:27 JST
Development of Prediction Model for Brain Amyloid-Beta Accumulation for Early Screening of Alzheimer's Disease
Feb 14, 2025 12:09 JST
Nissan, Honda and Mitsubishi Motors terminate MOU regarding consideration of tripartite collaboration
Feb 13, 2025 16:20 JST
ANA InterContinental Tokyo unveils Icon Reborn transformation
Feb 13, 2025 15:00 JST
MHI Thermal Systems Receives Top Honors on Australia's Foremost Consumer Review Platform for Two Series of Split System Air-Conditioners
Feb 13, 2025 12:47 JST
Honda Presents World Premiere of Seven Refreshed Large-size Outboard Motors at the Miami International Boat Show 2025
Feb 13, 2025 10:50 JST
Fujitsu to offer Fujitsu Cloud Service Generative AI Platform for secure and flexible enterprise data management
Feb 13, 2025 10:01 JST
ULVAC Develops Roll-to-Roll Lithium Deposition System, Unveiling at Battery Japan
Feb 13, 2025 08:30 JST
Mitsubishi Power Secures Major Gas Turbine and Services Order for Al Wahda Open Cycle Gas Turbine Power Plant in Morocco
Feb 12, 2025 16:21 JST
MHI Delivers Final 7000-Series AGT Trainset for the Astram Line
Feb 12, 2025 12:24 JST
Fujitsu and Yokohama National University achieve world's first real-time prediction of tornadoes associated with typhoons using supercomputer Fugaku
Feb 12, 2025 11:37 JST
NEC Solution Modernizes Network Infrastructure Construction Work
Feb 10, 2025 15:05 JST
Olympus Recognized on CDP's "A List", the Highest Rating in the Field of Climate Change
Feb 10, 2025 11:00 JST
uSMART Capital, LLC officially approved for U.S. FINRA license
Feb 07, 2025 17:40 JST
TANAKA to Provide Medals for the Tokyo Marathon 2025 That Represent All the Participants in the Event with Woven Lines
Feb 07, 2025 04:00 JST
MHI Thermal Systems to Launch New Model of the "Ene-Conductor" Heat Source Control System
Feb 06, 2025 16:51 JST
Hitachi establishes its fourth Corporate Venture Capital Fund to capture technology turning points and future growth opportunities
Feb 06, 2025 16:32 JST
Approval in Principle (AiP) Acquired from Classification Society for Low-Pressure Type Coastal Liquefied CO2 Carrier
Feb 05, 2025 17:46 JST
Toyota Powers On New North Carolina Automotive Battery Plant
Feb 05, 2025 13:59 JST
More Latest Release >>