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, †}

(a) Voltage profile of samples 2–6, which were discharged to 0.2 V, 0.05 V, 0.005 V, 0.005 V (kept at 0.005 V for 48 h), and charged to 2 V. (b)–(g) Roughness of samples 1–6. (h) AFM topographical images (3 μm × 3 μm) of samples 1–6, where sample 1 was the pristine Si thin film.