Cathode Electrolyte Interphase News Today

Utility industry news and analysis for energy professionals.

The lithium–sulfur battery is considered to be one of the most promising rechargeable energy storage systems because of its high theoretical energy density. Unfortunately, the shuttle effect during cycling causes serious loss of sulfur species and corrosion of the lithium metal anode, resulting in severe capacity decay. This work proposes to completely suppress the shuttle effect of lithium polysulfides (LiPSs) without sacrificing the interfacial Li+ transport, through in situ construction of ...

A stable and uniform cathode-electrolyte interphase (CEI) is extremely important for rechargeable batteries with high energy densities and long life cycles. The CEI greatly influences the electrochemical reactions at the interphase while stabilizing the cathode's structure. Because of the complexity of the interfacial reaction, an overall picture of CEI evolution and effective analysis methods is absent in the field. Herein, the formation and evolution mechanism of the CEI in rechargeable b...