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Peng-Bo Liu, Sheng-Liang Zhai, Ji Huang, Zhong-Shuo Zhang, Jie Zeng, Shao-Feng Li

Fig. 3. (a, b) XPS survey spectra at 0s sputtering time for SEI formed under initial water content of 5-7 mmol·L-1 (a) and 55-57 mmol·L-1 (b). (c, d) Relative elemental compositions of C, O, Li, F, and B for 5-7 mmol·L-1 H2O (c) and 55-57 mmol·L-1 H2O (d). Trace elements excluded; H undetectable by XPS but present in SEI.