N-Fluorobenzenesulfonimide as a multifunctional electrolyte additive for co-stabilizing dual-electrodes of lithium metal batteries with enhanced electrochemical performance

One action, two benefits: improving the performance of lithium–sulfur batteries with a poly(ionic liquid)

“…Generally, materials with a lower LUMO energy facilitate electron acceptance and can be reduced first. 50,51 Hence, the capacity loss in the first cycle shall originate from the reduction of PIL. The surface potential distribution shows that the imidazole exhibits a strong positive charge, indicating that the imidazole is easily reduced.…”