Researchers at the Center for Plasma Physics at the Islamic Free University of Iran have found that paper can be used as a supercapacitor for storing electrical energy. This new type of supercapacitor with only one layer of paper thickness can be bent and folded while still retaining electrical energy.
According to the British Science News website reported on November 20th, the term “supercapacitor” refers to a device that stores 10 times more energy per unit volume than conventional capacitors, and this device can be quickly charged and discharged. Paper-type supercapacitors are lighter and cheaper than other types, and the supercapacitors developed by Leila Avar’s team are more likely to bend than previous paper-type supercapacitors, giving them new potential uses. Avar explained: “In the near future, such supercapacitors will increase in industrial and home applications, and the cost will also be reduced to become a device for the public.”
Currently, if you need to store large amounts of energy, you usually need to use a heavy, large rechargeable battery. Supercapacitors can do this too, but they go up a bit: they charge and discharge faster than regular batteries—just minutes instead of hours—and can charge more times during their lifetime. And discharge.
Carbon has the desirable properties of efficient energy storage and is represented in the form of carbon nanotubes in current capacitors and supercapacitors. Since the 1950s, researchers have been using the high strength of carbon and excellent thermal and electrical conductivity; carbon is also elastic and flexible so that it can be easily bent and stretched.
The team analyzed the structure of commercial supercapacitors and made supercapacitors from a multi-layered carbon nanotube paper. They use barium titanate to separate these levels, which is more cost effective than any alternative compound. New paper-type superconductors store energy efficiently even when they are rolled up or folded.
According to reports, these new devices have a wide range of potential uses: medical implants, dermal patches, wearable technologies, and new large-scale energy storage devices for home and commercial transportation and smart packaging. Imagine a tablet that can be rolled up and loaded into a pocket of a garment, or a cell phone that is part of a jacket, or a battery that is integrated with the clothes to charge the phone.
Avar expects that the commercial and home applications of these supercapacitors will soon increase and costs will be reduced, so this technology will go to the mass market. Avar said: “Energy is the most important challenge we face in the future. Therefore, it is very important to manufacture a device capable of storing energy, high energy density and low cost. It is this that motivates us to carry out research on paper supercapacitors. ”
Post time: Aug-09-2019