Researchers developed flexible supercapacitors for energy storage, according to a report published on November 20, 2018.
This research was conducted by the researchers at the Plasma Physics Research Centre, Science and Research Branch of Islamic Azad University in Tehran, Iran. They developed a method to produce paper supercapacitors for electricity storage. At one sheet thick, these new supercapacitors can bend, fold, flex, and still hold electricity.
When compared to other types of supercapacitors, these supercapacitors are lighter and cheaper. Supercapacitors are capable of charging and discharging more quickly than conventional batteries and they can be charged and discharged more times over their lifespan.
Carbon, in the form of nanotubes, present in capacitors and supercapacitors contains properties that are required for storing energy efficiently. The structure of commercial supercapacitors were investigated by the researchers, following which they produced one that uses one sheet of carbon nanotube paper with different layers. The layers were separated using barium titanate, which is more economical than any alternative compounds. These superconductors can store energy efficiently even if they are rolled or folded.
This device finds application in medical implants, skin patches, wearable tech, and novel large-scale energy storage for domestic and commercial transport and smart packaging. Dr. Leila Fekri Aval, lead author said, “Energy is our most important challenge in the future. It is important to build a device that stores energy, has high power and energy density, but at a low cost. This is what inspired our research into paper supercapacitors.”