Distribution of Electrochemical Impedance Relaxation Times Reveals Sources of Overpotential in Lithium-Oxygen Battery Charging
【Research Highlights】The lithium-oxygen battery, despite its high theoretical energy density (3500Wh/kg), still faces significant challenges for commercial application. One major challenge in charging lithium-oxygen batteries is the low charging current, high overpotential, numerous side reactions, incomplete charging decomposition, and low coulombic efficiency. The discharge product lithium peroxide (Li2O2) is an insulating solid, which complicates the … Read more