Researchers from Nanjing University in China and Fukui University in Japan (hereinafter referred to as "joint team") have jointly developed a wearable high-tech fabric, which can generate energy through body movement. They published their findings in the peer-reviewed magazine Nanoenergy.
The joint team uses the principle of triboelectrification to generate triboelectric energy. Triboelectrification refers to the phenomenon that two different objects are charged due to friction, which is called triboelectrification (or the phenomenon that one object is positively charged and the other object is negatively charged after two different objects rub against each other).
In fact, triboelectrification is produced by rubbing two materials together, thus enhancing the contact between their surfaces. For example, when you insert a hair into your hair, this triboelectric phenomenon may occur.
On the basis of utilizing this phenomenon, a composite material called "Triboelectric Nanogenerator" (also called TENG) has been developed, which can be used to convert mechanical motion into electrical energy. Because of its small size, Teng can drive electronic devices through physical movements. The triboelectric layer is charged by the mechanical movement of the body (such as walking or running). This process converts mechanical energy into electrical energy, and then uses the electrical energy to charge electronic equipment.
Therefore, the all-fiber composite layer of triboelectric nano-generator (called EF-TENG) can be used in the garment manufacturing process, and the composite layer can be easily integrated into ordinary cloth to manufacture clothes that can generate electricity.
Triboelectric nano-generator material is not a brand-new technology. This material was first successfully developed by Academician Wang Zhonglin of China Academy of Sciences (20 12), and can collect and utilize the electric energy generated by friction and static electricity such as handshaking, walking and tides.
However, the traditional triboelectric nano-generator materials have some unpleasant characteristics, such as poor air permeability. In addition, their power generation and transmission efficiency is not high.
In order to solve these problems, the joint team adopted silver nanowires as electrodes and electrospun polystyrene nanofibers as charge storage layers on the basis of related technical research, which improved the properties of triboelectric nanogenerator materials, formed breathable antibacterial electrodes and electrostatic induction enhancement layers, achieved better performance and improved air permeability.
In addition, the charges accumulated on the surface of the original triboelectric nano-generator material will slowly drain or dissipate, thus reducing the output performance and surface charge density. Through the improvement of the joint team, polystyrene film is added to realize the stability of surface charge density.
The all-fiber composite nano-generator made of electrospun polyvinylidene fluoride/nylon, silver nanowires and polystyrene can be easily integrated into conventional clothing, so that it can charge small electronic devices through daily exercise. The team demonstrated the performance of their new high-tech textiles by supplying power to 126 LEDs. However, the device still lacks enough output to charge devices that need more power.
HiroakiSakamoto, one of the authors of the joint team paper, said that because the new materials formed in this research are softer and more breathable, although this technology can only charge LEDs and small devices (such as calculators) at present, its material characteristics mean the possibility of the future. After being widely used, there will be great potential to collect static electricity from clothes.
Anal-fibrous electrical nanogenerator with enhanced outputs dependent on the polystyreneschangestoragelayer-(nano-energy)
_ _ Brother's sadness, Shao's sadness, Zhong You's sadness, Tao sheath's sadness, De Zhong You's sadness, Tao's sadness, Mu Yi's and Xi Tao's scolding.
_ The color-changing principle of intelligent color-changing textile materials is mainly the change of molecular structure of color-changing materials caused by external environment, including rearrangement, open-loop and closed-loop, tautomerism. These changes will lead to changes in the * * * yoke system in the molecular structure. In materials science, there is a saying that structure determines properties. The change of the color-changing material yoke system is manifested as the color change of the material on the macro level. According to different external stimulus factors, intelligent color-changing materials can be divided into photochromic (light source stimulus) textile materials and thermochromic (external environment temperature stimulus) textile materials.
_ With this intelligent color-changing material, we will have a more comfortable wearing experience. At present, the intelligent textile materials developed by scientists mainly change color. In addition, there are still some problems in this material currently developed. These problems mainly focus on the expression of color change. It is believed that with the further progress of time, relevant scientists will conduct further research. We will develop multifunctional intelligent textile materials. Multifunctional intelligent textile materials must be the focus and important research field of the whole research. Intelligent textile materials will also have very high application value in the future. The market demand for intelligent textile materials will also be particularly large. Intelligent textile material is a kind of material that can improve people's wearing experience.
What exactly is Samsung's smart clothes like?
With the development of smart wear, smart clothing, as an important branch, has been favored by more and more people in recent years.
This is inseparable from its importance. China often said "clothing, food, shelter and transportation", among which clothing ranks first, and clothing has become an indispensable thing today.
Leading sportswear companies such as Nike, Adidas and Andema, as well as Apple, Google and Intel, have all announced their investment in the research and development of smart clothing.
Some time ago, Google and Levi's jointly developed a jacket equipped with wearable devices. This jacket is woven from "electronic interactive fiber materials", which allows cycling enthusiasts to control their mobile phones directly through clothes without taking out their mobile phones. Clothes themselves can also provide users with many functions, such as playing music directly from the sleeves of jackets and displaying maps.
In addition to Google, smart clothing also has applications in some fields, such as military and medical care. In order to resist the hot weather, some smart clothes can even be warm in winter and cool in summer. However, a patent recently obtained by Samsung is also related to smart clothes. Surprisingly, this kind of clothes can also charge electronic equipment.
Recently, it is reported that Samsung galaxy Company has obtained a patent for "smart clothes", which can be used to charge electronic devices.
According to the patent description, this dress can collect the energy generated by arm movement into a special battery. Therefore, necessary sensors and processors will be installed in clothes to collect human activity data.
As can be seen from the figure, multiple sensors are distributed throughout the clothing, not only clothes, but this patented system can also be applied to jackets, trousers, hats, gloves and shoes.
If the equipment can be connected with clothes, the energy generated by clothes and actions can charge the equipment. But the specific capacity of the battery is not known at present, but the patent application points out that the battery capacity is not large. But as a necessity of life, if it meets people's basic needs, it can have other powerful additional attributes, which is undoubtedly popular. Especially with the popularity of smart phones, and battery technology has not improved, I believe that many people will like a dress that can charge their mobile phones at this time.
At present, it is not known whether this kind of clothes is washable. Samsung actually applied for this patent in Korea last year, and the technology may be mature, so people may see this product soon.
In fact, regarding smart clothes, Samsung put forward the concept of "SmartSuit" at CES 20 16, and at CES, Samsung also displayed "SmartSuit" products equipped with ECG and EMG sensors such as BodyCompass2.0 shirts and Weltsmartbel belts. These clothes are no different from ordinary clothes in appearance, but these SmartSuit can realize real-time monitoring of body data such as heart rate, exercise steps and body fat, and can also provide reasonable suggestions for people with applications.
Obviously, intelligence has become the trend of clothing development. Smart clothing satisfies the fantasy of contemporary young people about the trend, which not only brings more convenience to people, but also brings new innovation impetus to the traditional clothing industry. In the future development, a new round of growth will be ushered in soon.