Advanced research on electrolytes for regulating the SEI in high-performance LMBs

Abstract

Rechargeable lithium metal batteries (LMBs) with a lithium anode have attracted wide attention as next-generation energy storage systems due to their high specific energy density and wide operating voltage range. Electrolytes not only facilitate the transport of lithium ions but also play an important role in the formation of the solid electrolyte interphase (SEI) on the lithium anode surface, which affects the coulombic efficiency of LMBs. To date, extensive research on electrolyte modification has been devoted to adjusting the structure and composition of the SEI to inhibit dendrite growth on the rechargeable lithium anode. In order to guide further research on electrolytes, this paper summarizes the latest advancements in electrolytes for lithium metal anodes, with an emphasis on constructing a stable SEI on the lithium anode surface. Finally, a perspective on the future development of LMBs is proposed, which will help guide researchers in designing advanced LMBs.