Interface Regulation via Electric Double Layer for Rechargeable Batteries

Interface, especially the electrochemically formed solid electrolyte interphase (SEI), is significantly important for cycling stability, reaction kinetics and safety of rechargeable batteries. The structure and composition of the electric double layer (EDL) greatly affect the formation of SEI and the performance of electrodes. However, as far as we know, there isn’t review to demonstrate the theme specially. Herein, the recent substantial progress for EDL and its impact on the formation of SEI in rechargeable batteries are reviewed and discussed. Firstly, the specific adsorption of electrolyte components on electrodes’ surface and the ionic solvation structure is introduced. Furthermore, various methods for controlling EDL in different electrode systems are described. Finally, the future development of SEI via EDL is presented for improvements and breakthroughs in electrochemical performance of rechargeable batteries.