飞行时间二次离子质谱在锂基二次电池中的应用
赵志伟, 杨智, 彭章泉

Application of time-of-flight secondary ion mass spectrometry in lithium-based rechargeable batteries
Zhiwei ZHAO, Zhi YANG, Zhangquan PENG
图5 (a) 模型电池示意图;(b) SEI形成过程电解液中同位素比率随时间的变化趋势;(c) Cu电极表面SEI6Li7Li比例和Cu+ 的二次离子SIMS深度分布图像;(d) Cu电极上形成SEI6Li7Li比例随时间变化示意图;(e) Cu电极上C2H2-(有机组分)Li2F-(无机组分)Cu+ 二次离子SIMS深度分布图像;(f) SEI 形成机制示意图[37]
Fig. 5 (a) schematic of a model cell; (b) Li isotope ratio variation trend over time in electrolyte during SEI formation process; (c) SIMS depth profiles of the 6Li7Li ratio and Cu+ of SEI on Cu electrode surface; (d) schematic of 6Li7Li isotope ratio variation over time on SEI of Cu electrode surface; (e) the depth profile of secondary ion of C2H2-(organic), Li2F-(inorganic) and Cu+ on Cu electrode; (f) schematic of SEI formation mechanism[37]