ASME Philadelphia Section: Study of New Materials for Next Generation Metal-Sulfur Batteries

Description

This is the final event in our Seminar Series: Clean Reliable Modern Energy. Lithium-Sulfur is a next generation battery chemistry that offers a theoretical capacity of 1,675 mAh/g, an order of magnitude higher than that of the currently used Li-ion battery cathodes and a promise of >500Wh/kg energy density at the device-level. However, among other challenges, a serious challenge that has plagued the development of this technology is the dissolution and shuttle of intermediate polysulfides (Li2Sx, x=4-8) in the electrolyte resulting in loss of active material and rapid capacity fade during cycling. I will present representative projects in my lab that integrate materials design & manufacturing, battery device assembly & testing (at coin and pouch cell level) and postmortem and in-operando spectroelectrochemistry to address several sulfur battery challenges from multiple directions. Presented by Dr. Vibha Kalra, Drexel University. Please join us!