PCB supplier china:Application of Foldable and Durable Battery in Medical Equipment
With the introduction of high-power wearable devices and smart phones such as foldable mobile phones and 5G mobile phones, people are increasingly interested in batteries, and various types of batteries are also under development. For example, flexible batteries embedded in mobile phone watchbands or wireless power sharing batteries developed from wireless charging. However, there is currently no manufacturing process for producing batteries with foldable capacity of thousands of milliampere hours (mAh). Recently, a research team in South Korea has developed a monolithic electrode that can replace the heavy collector, thus developing this kind of flexible battery with high capacity.
Professor Su-jin Park of the Department of Chemistry and Advanced Materials Science and his postdoctoral fellow Jaegeon Ryu and Dr. As a student, Jieun Kang has successfully developed a flexible battery with thin layers and three-dimensional organic electrodes in cooperation with the Korean institute of materials science. In addition, by using the three-dimensional copper current collectors, they can reduce the weight of the battery by 10 times compared with the traditional copper current collectors. Instead of using graphite anode, they use organic materials, which can increase the energy density of the battery by four times or more. Their research is published in the latest issue of ACS Nano.
PCB supplier china knowing that organic materials have low conductivity and there is no solution to integrate current collectors and organic materials. For this reason, it is impossible to prove the integral electrode with organic materials before the study. The research team has studied a new method to replace the current collector, which will make the battery heavier and the graphite anode has a lower energy density, thus innovatively reducing the weight of the battery.
The team produced a three-dimensional structure with high electrical conductivity by using single-walled carbon nanotubes (SWCNT) aerogel. Here, they construct thin monolithic organic electrodes by coating nano-scale imide-based network (IBN)2 organic materials.
The three-dimensional monolithic electrode coated with an organic IBN layer with a thin and adjustable thickness of 8 nm provides a capacity of up to 1550 mA hg -1 and has a charging capacity of more than 800 times. These electrodes are coated with organic materials. Although their inherent conductivity is very poor, they have high conductivity and also prove that the electrochemical performance of rechargeable batteries is improved by helping lithium to transfer rapidly through a large number of redox active sites. In addition, the thickness of the coated organic material can be easily controlled, and they can greatly improve the current density of the organic electrode.
The newly developed electrode can replace the metal-based current collector, so that portable and flexible rechargeable batteries can be developed, which can then be applied to the next generation of wearable electronic equipment, flexible equipment, telecommunications and electronic vehicles. Professor Park Soo-jin, who is in charge of the research, commented: "By using this newly developed monolithic electrode with SWCNT organic material, we can greatly reduce the weight of rechargeable batteries. This can overcome the limitations of conventional rechargeable batteries and realize flexibility and light weight. Organic battery. "
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