[CANCELLED] UChicago PME Materials Special Seminar - Dr. Bing-Joe Hwang

Lithium Metal Deposition and Stripping Phenomena

Due to the high energy density of Li metal batteries, it is possible to develop energy storage systems tailored to various applications using Li metal. However, the mechanisms of Li metal deposition and dissolution—such as nucleation, growth, dendrite formation, dead metal formation, interfacial reactions, and interphase formation—vary significantly depending on the electrolyte. Controlling Li metal deposition and stripping across diverse electrolyte systems remains a critical yet challenging task for realizing high-performance anode-free Li metal batteries (AFLMBs). In this talk, I will present the underlying mechanisms of Li metal deposition and stripping, along with interfacial reactions between Li metals and electrolytes. These will be examined across both liquid and solid-state electrolyte systems using advanced in-situ spectroscopic and imaging techniques. Based on insights gained from these investigations, I will also discuss strategies based on the mechanism understandings to enhance the performance of Li metal-based energy storage systems.