Figure 2

UV-Visible absorption spectra of fresh 1 mol.L⁻¹ LiPF₆ EC/DMC electrolyte (black curve), after 100 hours (red curve) and 200 hours (blue curve) of light illumination under A.M. 1.5G conditions. A picture of the electrolyte before and after 200 hours continuous light irradiation is presented in inset.