fig5
![Protective behavior of phosphonate-functionalized imidazolium ionic liquid and its impact on the Li-ion battery performance](https://image.oaes.cc/b9334d41-8a97-4f21-ba5f-b922875bee8f/em3033.fig.5.jpg)
Figure 5. Raman spectra of the electrolyte without PFIL and the electrolyte with PFIL (A); LSV voltammograms of the electrolyte without PFIL and the electrolyte with PFIL (B); cyclic voltammetry of the Al electrodes in the electrolyte without PFIL (C) and the electrolyte with PFIL (D), respectively.