Sang Bok Lee's Research Group
University of Maryland, College Park
University of Maryland, College Park
Our research group concentrates on two primary areas within energy storage technology:
Heterogeneous Meso-architectures for Energy Storage: We investigate the creation and characterization of complex nano-scale structures using electrochemical methods. Our aim is to apply these structures to enhance energy storage devices, including Li-ion batteries and emerging beyond-Li-ion technologies. Current projects involve lithium-sulfur batteries, magnesium batteries, and solid-state lithium ion battery chemistries.
Fundamental Properties of Engineered Nanostructures: We fabricate and study precisely controlled porous nanostructured materials, such as anodized aluminum oxide (AAO). This allows us to examine diffusion phenomena and reactions within confined meso-architectures. Our research explores how these structures influence battery performance metrics like energy and power density, as well as potential degradation mechanisms in novel architectural designs.
Our past achievements include:
Developing new electrochemical growth techniques for conductive polymer and metal nanotubes within templated cylindrical pores.
Creating poly(ethylenedioxythiophene) (PEDOT) nanotubes that enabled a groundbreaking electrochromic device. This device achieved unprecedented moving-image speed while maintaining high optical color contrast, a combination not previously realized in the field.
Through this work, we aim to advance the understanding and performance of next-generation energy storage technologies