American universities have developed a "perfect replacement" for lithium batteries
According to foreign media reports, the scientific team of the Central University of Florida (UCF) has developed a "super battery" that can store more energy.
After the traditional lithium battery is charged 1500 times, the performance begins to have different degrees of attenuation, and the performance of this super capacitor can be reduced without using 30,000 times.
"Just replace the battery in your phone with this supercapacitor , then charge your phone for a few seconds, then you don't have to recharge your phone for a week." Nitin Choudhary, one of the researchers Dr. introduction.
People with smartphones generally encounter the problem that the battery is charged for about 18 months, and the time it takes to charge the phone for one time begins to get shorter and shorter. This shows that the battery's ability to store electricity has dropped.
Scientists have been studying how to use nanomaterials to increase the battery's capacity, and hope to develop more powerful supercapacitors to replace the batteries we use at this stage.
It has been confirmed earlier that two-dimensional materials have strong electrical storage properties, although some people have tried to add graphite formulations to two-dimensional materials in the past, but the effect is not satisfactory. Researchers at Central Florida University have chosen to apply a new invention of two-dimensional materials to capacitors.
“Most of the researchers today have encountered difficulties in combining 2D materials with current capacitive systems, which has been a bottleneck in our industry. Our team used a simple chemical synthesis method that works well. Combine the two," said lead researcher Yeonwoong Jung.
The team's supercapacitors are made up of millions of wires that are only a few nanometers in length, each wrapped in a two-dimensional material. Ultra-high conductivity speeds up the movement and transfer of electrons, allowing the battery to charge and discharge ultra-fast. “For small equipment, our materials far exceed conventional standards in terms of energy density, power density and stability,†says Jung. In the future, electric vehicles and other equipment can also use this new type of capacitor. Because it is extremely flexible and can be bent, it can also be combined with wearable devices.
Of course, the team at the Central University of Florida also pointed out that there is still a period of commercialization of the production of super batteries. This product is more of a new inspiration for battery technology research and development.
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