Influence of fluoroethylene carbonate on the solid electrolyte interphase of silicon anode for Li-ion batteries: A scanning force spectroscopy study

Zheng Jieyun¹, Liu Jialiang², Wang Suijun², Luo Fei¹, Ben Liubin¹, Li Hong^{1, †}

Typical profiles of force curve spectroscopy: (a) naked surface of the Li–Si alloy after cycle, (c) single-layered SEI, (d) double-layered SEI, (g) triple-layered SEI, (i) bubble; (b) (d), (f), (h), (j) possible models for the previous structures.