Assistant Professor Yang Yang of University of Central Florida has been working on extending the charged period of rechargeable lithium-ion batteries. He is doing this by making the batteries more efficient, with some of his latest work focusing on keeping an internal metal structure, the anode, from falling apart over time by applying a thin, film-like coating of copper and tin.
In practice, an anode generates electrons that travel to a similar structure, the cathode, inside the battery, thus creating a current and power. Yang, an expert in battery improvement, including making them safer and able to withstand extreme temperatures, is using a unique technique by introducing a copper-tin alloy. This is an important and scalable improvement in stabilizing rechargeable battery performance.
The research has been funded by the National Science Foundation through its Division of Chemical, Bioengineering, Environmental and Transport Systems’ Electrochemical Systems program and through UCF’s startup funding and preeminent postdoctoral programs. The new technique has been described in details in a recent study in the Journal Advanced Materials.
The study co-authors are Guanzhi Wang, a doctoral student in UCF’s NanoScience Technology Center, Department of Materials Science and Engineering; and the paper’s first author; Megan Aubin is a doctoral student in UCF’s Department of Materials Science and Engineering. Yang holds joint appointments in UCF’s NanoScience Technology Center and the Department of Materials Science and Engineering.