双(三氟甲基磺酰)亚胺锂的合成与表征

Synthesis and Characterization of Lithium bis (Trifluoromethane Tulfonylimide) 

中文关键词:  双(三氟甲基磺酰)亚胺锂  锂离子电池  三氟甲基磺酰氯  置换反应

英文关键词:Lithium bis(trifluoromethane sulfonylimide)  Lithium ion battery  Trifluoromathanesulfonyl chloride  Metathesis reaction

中文摘要:

      以三氟甲基磺酰氯为原料,经胺化、成盐、酸碱中和、复分解置换反应合成了无水双(三氟甲基磺酰)亚胺锂。通过研究温度、溶剂、反应时间、氨气通入速率等对反应产率的影响,优化了三氟甲基磺酰胺与双(三氟甲基磺酰)亚胺钾的合成条件。得到三氟甲基磺酰胺的最优合成条件为以乙腈为溶剂,氨气通入速度为0.8 mL/min,反应时间为1 h,反应温度为-10~-5℃；双(三氟甲基磺酰)亚胺钾的最优合成条件为反应时间3 h,反应温度-10~-5℃。利用FT-IR、¹³C-NMR和ICP对中间产物与最终产物进行了表征。双(三氟甲基磺酰)亚胺锂的产率为72.65%。

英文摘要:

      :Lithium bis(trifluoromethane sulfonylimide) was synthesized by amination reaction, salification reaction, acid-base neutralization reaction and metathesis reaction from trifluoromathanesulfonyl chloride. This work optimized the conditions of lithium bis(trifluoromethane sulfonylimide)synthesis by studying the influence of temperature, solvent,reaction time and flow rate of ammonia. The optimum synthesis conditions of trifluoromethanesulfonamide were using acetonitrile as solvent and ammonia flow rate of 0.8 mL/min at -10~-5 ℃ for 1h. The optimum synthesis conditions of triethylamine bis(trifluoromethyl sulfonylimide) were at -10~-5 ℃ for 3h. All products were characterized by FT-IR, ¹³C-NMR and ICP. The total yield of lithium bis(trifluoromethane sulfonylimide) is 72.65%.