Scientists at the University of Central Florida working on alternative lithium-ion battery designs have come up with an improvement that they say will greatly improve the performance of these devices. This breakthrough mainly lies in coating a new protective coating on one electrode of the battery, which can significantly slow down the degradation of the battery and keep the battery more charged for a longer time. < / P > < p > in lithium-ion batteries, electrons generated by the positive (or negative) electrode move to the positive (or negative) electrode to generate electricity. Normally, anode modules are made of graphite, but there are also potential alternatives, such as tin, which has high capacity and high conductivity. < / P > < p > however, when the battery is charged, it will lead to the volume change of tin, which will lead to its rapid deterioration. Professor Yang Yang of the University of Central Florida has been exploring ways to improve battery performance, including mechanical degradation of tin anode in lithium-ion batteries, and now he believes he may have found a solution. < / P > < p > as part of their research field, Yang and his team explore different variants of alloy materials. Because each is unique in composition, structure and performance, they have developed a thin film made of tin and copper that can be applied to tin anodes and remain stable throughout the charging process, preventing it from collapsing in a fatal way to batteries. < p > < p > Yang pointed out that their work has shown that the anodic degradation rate of the films is more than 1000% lower than that of the commonly used tin films. < / P > < p > the battery design is not only suitable for compact environments such as smartphones, but also can be used in larger applications such as electric vehicles or electric trucks, the researchers said. If the battery is designed to work in this situation, it will allow the phone to last longer after each charge, or the electric car can drive further without charging. Global Tech