fig1
![Fundamentals and perspectives of electrolyte additives for non-aqueous Na-ion batteries](https://image.oaes.cc/30caa1ee-dd04-4fda-a1cc-dc765ffe2987/em3022.fig.1.jpg)
Figure 1. A schematic of the SEI/CEI formation under electrochemical reduction/oxidation conditions. CEI: Cathode electrolyte interphase; HOMO: highest occupied molecular orbital; LUMO: lowest unoccupied molecular orbital; SEI: solid electrolyte interphase.