Evaluation and Characterization of SEI Composition in Lithium Metal and Anode‐Free Lithium Batteries

Abstract Interfaces, particularly the solid electrolyte interface (SEI), play a crucial role in the performance and durability of batteries. Peled first proposed the inception of the SEI. The SEI, which is formed by electrolyte decomposition on the electrode surface, affects battery stability, electrochemistry, and cycle life. The structural properties of the SEI are related to lithium stripping and plating efficiency, as well as to the overall battery lifespan. In lithium metal batteries, the SEI must manage the significant volume changes of the electrode and prevent dendrite growth that can lead to short circuits and capacity losses. This challenge is exacerbated in anode‐free lithium batteries, where…

• MD
  Ministère de l'Économie, de l’Innovation et des Exportations du Québec