2023-12-28 23:10:00
An international research group has developed an innovative, high-strength flexible device, paving the way for a new generation of autonomous sensors. This innovation could transform the way we interact with Internet of Things (IoT) technologies.
The device, the result of an international collaboration, combines piezoelectric composites with unidirectional carbon fibers (UDCF), an anisotropic material that provides strength only in the direction of the fibers.
This new device transforms kinetic energy from human movement into electricity, providing an efficient and reliable means for high-resistance autonomous sensors.
Towards a sustainable future
Motion sensing, which involves converting the energy of human movement into measurable electrical signals, is essential to ensuring a sustainable future.
« Many everyday objects, from protective equipment to sports equipment, are connected to the Internet as part of the Internet of Things (IoT), and many of them are equipped with sensors that collect data “, explains Fumio Narita, co-author of the study and professor at theTohoku University.
Principle, structural design and application of unidirectional flexible carbon fiber reinforced piezoelectric nanocomposite materials. Tohoku University
A promising device
The group fabricated the device using a combination of unidirectional carbon fiber fabric (UDCF) and sodium-potassium niobate nanoparticles (KNN) mixed with epoxy resin (EP).
The UDCF served as both an electrode and a directional reinforcer.
The UDCF/KNN-EP system met expectations. Tests found that it could maintain high performance even after being stretched more than 1000 times. It has been proven that it can withstand a much higher load when pulled along the direction of the fiber compared to other flexible materials.
Synthetic
The UDCF/KNN-EP device represents a significant advancement in the development of autonomous and flexible IoT sensors. It paves the way for advanced multifunctional IoT devices. The researchers are also enthusiastic about the technological advances of their discovery.
For a better understanding
What is UDCF/KNN-EP?
The UDCF/KNN-EP is a flexible, high-strength device that transforms the kinetic energy of human movement into electricity.
What are the advantages of UDCF/KNN-EP?
This device can maintain high performance even after being stretched more than 1000 times. It can withstand much higher load when pulled along the fiber direction.
What are the potential applications of UDCF/KNN-EP?
UDCF/KNN-EP could be used in the development of autonomous and flexible IoT sensors, paving the way for advanced multifunctional IoT devices.
Who developed the UDCF/KNN-EP?
It was developed by an international research group, with the participation of Fumio Narita, professor at Tohoku University.
References
Main illustration caption: Piezoelectric composites with carbon fibers for motion sensors
Article : “Fabrication, Evaluation, and Multiscale Simulation of Piezoelectric Composites Reinforced Using Unidirectional Carbon Fibers for Flexible Motion Sensors” – Auteurs : Yaonan Yu, Chao Luo, Takayuki Suto, Yasutomo Uetsuji, Fumio Narita – Journal: Small
DOI: 10.1002/smll.202307689
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