Recent Progress in Understanding Solid Electrolyte Interphase on Lithium Metal Anodes

Abstract Lithium metal batteries (LMBs) are one of the most promising candidates for next‐generation high‐energy‐density rechargeable batteries. Solid electrolyte interphase (SEI) on Li metal anodes plays a significant role in influencing the Li deposition morphology and the cycle life of LMBs. However, a thorough understanding on the mechanisms of SEI formation and evolution is still inadequate. In this review, the progress in understanding structures, properties, and influencing factors of SEI, as well as efficient strategies of tailoring SEI are focused upon. First, the compositions, models, and recent progress in characterizing atomic structures of SEI are summarized. Second, the properties of SEI,…

• UD
  U.S. Department of Energy
• VT
  Vehicle Technologies Program

  Award: DE‐AC05‐76RL01830
• VT
  Vehicle Technologies Office