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release time:2024-06-24 Hits: Popular:AG11 battery
American universities have developed a "perfect replacement" for AA Ni-MH batteries
According to foreign media reports, a scientific team at the University of Central Florida (UCF) has developed a "super battery" that can store more energy.
After 1,500 charges, the performance of traditional lithium-ion batteries begins to decay to varying degrees, while this supercapacitor can be used continuously for 30,000 times without performance degradation.
"Just replace the battery in your phone with this supercapacitor, and then charge your phone for a few seconds, and you don't have to charge your phone for a week." Dr. Nitin Choudhary, one of the researchers, introduced.
People with smartphones generally encounter this problem: after about 18 months of battery use, the time it can last for a single charge of the phone begins to become shorter and shorter. This shows that the battery's ability to store electricity has decreased.
Scientists have been studying how to use nanomaterials to increase the capacity of batteries, hoping to develop more powerful supercapacitors to replace the batteries we are currently using.
It has been confirmed earlier that two-dimensional materials have strong power storage properties. Although some people have tried to add graphite formulas to two-dimensional materials in the past, the effect is not ideal. Researchers at the University of Central Florida chose to apply a newly invented two-dimensional material to capacitors.
"Most researchers today have difficulty combining two-dimensional materials with current capacitor systems, which has always been a bottleneck in our industry. Our team used a simple and easy chemical synthesis method that can combine the two very well." said lead researcher Yeonwoong Jung.
The supercapacitor developed by the team consists of millions of wires only a few nanometers long, each of which is wrapped in a two-dimensional material. The ultra-high conductivity can speed up the movement and transfer of electrons, allowing the battery to charge and discharge ultra-fast. "For small devices, our materials are far beyond conventional standards in energy density, power density and stability." Jung introduced. In the future, electric vehicles and other devices will also be able to use this new capacitor. Because it is extremely flexible and can be bent, it can also be combined with wearable devices.
Of course, the team at the University of Central Florida also pointed out that it is still some time before the commercial mass production of super batteries can be achieved. This product is more of a new inspiration for the development of battery technology.
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