硅基负极与电解液化学反应的分析与抑制策略

于春辉, 何姿颖, 张晨曦, 林贤清, 肖哲熙, 魏飞

The analyses and suppressing strategies of silicon anode with the electrolyte

YU Chunhui, HE Ziying, ZHANG Chenxi, LIN Xianqing, XIAO Zhexi, WEI Fei

图1 硅基负极与电解液化学反应的探究。(a) 高压釜-质谱联用的研究装置；(b) 单一电解液反应后的质谱结果；(c) 硅与电解液反应后的质谱结果；(d) 硅与电解液反应之后固相XRD结果；(e) 硅与电解液反应之后固相XPS结果；Si@C与电解液反应前(f)后(g) TEM照片以及反应后的EDS Mapping (h)

Fig. 1 Study of the chemical reaction. (a) Illustration of the experiment; (b) and (c) MS results of the electrolyte and Si after the reaction, respectively; (d) XRD data of Si after the reaction; (e) F1s spectrum results for Si@C after the reaction; TEM image of Si@C before (f) and after (g) reaction; (h) EDS Mapping of Si@C after reaction