Nanoscale Morphological Changes at Lithium Interface, Triggered by the Electrolyte Composition and Electrochemical Cycling

Figure 5

Relative distribution of carbon (a), sulfur (b), oxygen (c), and fluorine (d) containing chemical structures, detected after 30 min of sputtering with Ar⁺ for the SEI layers formed by spontaneous passivation.

(a)

(b)

(c)

(d)