A paper by Junjie Niu, assistant professor of materials science & engineering, was published Sept. 6 in ACS Nano. He is filing a U.S. provisional patent on the high-performing battery developed by this team at UWM and discussed in their paper “Largely Improved Battery Performance Using Micro-Sized Silicon Skeleton Caged By Polypyrrole As Anode.”
Niu is corresponding author. Other authors, all from Niu’s work group, include Yingying Lv (post-doctoral researcher) and Mingwei Shang (doctoral student).
The prestigious journal ACS Nano had an impact factor of 13.9 in 2018.
According to Niu, the new battery displays an “excellent capacity retention upon long cycling at high rates and high material loadings,” the paper states.
For years, Niu has investigated longer-lasting, higher-energy batteries. Working with battery companies including Johnson Controls (now Clarios), and national labs including Oak Ridge and Argonne, he continues to research the electrochemical reactions of lithium-ion batteries in situ, discerning at the atomic level the fundamental properties of the electrode materials.
The electrode active material is “the key” to higher-performing batteries, Niu says. “The goal is to deliver greatly improved energy density to power large electronic devices such as laptops, cell phones and electric vehicles.”