双(三氟甲基磺酰)氨基锂

双(三氟甲基磺酰)氨基锂
别名	双(三氟甲烷磺酰)亚胺锂; LiTFSA; LiTFSI
识别
CAS号	90076-65-6
性质
化学式	LiN(CF3SO2)2
密度	2.27 g·cm−3
熔点	238.0 °C（511.1 K）
溶解性（水）	80.65% (22 °C)
	若非注明，所有数据均出自标准状态（25 ℃，100 kPa）下。

双(三氟甲基磺酰)氨基锂又称双(三氟甲烷磺酰)亚胺锂，是一种弱配位阴离子的锂盐，化学式为LiN(CF₃SO₂)₂。^[4]它可用作复合聚合物电解质材料。^[5]

制备

该化合物可由双(三氟甲基磺酰)亚胺和氢氧化锂或碳酸锂在水溶液中反应得到，无水物通过110 °C真空干燥获得：^[4]

LiOH + HNTf₂ → LiNTf₂ + H₂O

参考文献

^ Keigo Kubota, Kenichiro Tamaki, Toshiyuki Nohira, Takuya Goto, Rika Hagiwara. Electrochemical properties of alkali bis(trifluoromethylsulfonyl)amides and their eutectic mixtures. Electrochimica Acta. 2010-01-01, 55 (3): 1113–1119 [2019-01-19]. ISSN 0013-4686. doi:10.1016/j.electacta.2009.09.024.
^ Sung Jin Pai, Young Chan Bae. Open circuit voltage for solid polymer electrolyte/salt systems in lithium batteries. Journal of Applied Electrochemistry. 2005-03-01, 35 (3): 259–265 [2019-01-19]. ISSN 1572-8838. doi:10.1007/s10800-004-6708-4 （英语）.
^ Gilbert, William J. R.; Safarov, Javid; Minnick, David L.; Rocha, M. Alejandra; Hassel, Egon P.; Shiflett, Mark B. Density, Viscosity, and Vapor Pressure Measurements of Water + Lithium Bis(trifluoromethylsulfonyl)imide Solutions. Journal of Chemical & Engineering Data (American Chemical Society (ACS)). 2017-06-05, 62 (7): 2056–2066. ISSN 0021-9568. doi:10.1021/acs.jced.7b00135.
^ ^4.0 ^4.1 Jin Nie, Hiroshi Kobayashi, Takaaki Sonoda. Copper(II) bis((trifluoromethyl) sulfonyl) amide. A novel Lewis acid catalyst in Diels-Alder reactions of cyclopentadiene with methyl vinyl ketone. Catalysis Today. 1997-04-25, 36 (1): 81–84 [2019-01-19]. ISSN 0920-5861. doi:10.1016/S0920-5861(96)00199-X.
^ Takahito Itoh, Yosiaki Ichikawa, Takahiro Uno, Masataka Kubo, Osamu Yamamoto. Composite polymer electrolytes based on poly(ethylene oxide), hyperbranched polymer, BaTiO3 and LiN(CF3SO2)2. Solid State Ionics. 2003-01-01, 156 (3): 393–399 [2019-01-19]. ISSN 0167-2738. doi:10.1016/S0167-2738(02)00682-3.

[1] Keigo Kubota, Kenichiro Tamaki, Toshiyuki Nohira, Takuya Goto, Rika Hagiwara. Electrochemical properties of alkali bis(trifluoromethylsulfonyl)amides and their eutectic mixtures. Electrochimica Acta. 2010-01-01, 55 (3): 1113–1119 [2019-01-19]. ISSN 0013-4686. doi:10.1016/j.electacta.2009.09.024.

[2] Sung Jin Pai, Young Chan Bae. Open circuit voltage for solid polymer electrolyte/salt systems in lithium batteries. Journal of Applied Electrochemistry. 2005-03-01, 35 (3): 259–265 [2019-01-19]. ISSN 1572-8838. doi:10.1007/s10800-004-6708-4 （英语）.

[3] Gilbert, William J. R.; Safarov, Javid; Minnick, David L.; Rocha, M. Alejandra; Hassel, Egon P.; Shiflett, Mark B. Density, Viscosity, and Vapor Pressure Measurements of Water + Lithium Bis(trifluoromethylsulfonyl)imide Solutions. Journal of Chemical & Engineering Data (American Chemical Society (ACS)). 2017-06-05, 62 (7): 2056–2066. ISSN 0021-9568. doi:10.1021/acs.jced.7b00135.

[cu-4] 4.0 ^4.1 Jin Nie, Hiroshi Kobayashi, Takaaki Sonoda. Copper(II) bis((trifluoromethyl) sulfonyl) amide. A novel Lewis acid catalyst in Diels-Alder reactions of cyclopentadiene with methyl vinyl ketone. Catalysis Today. 1997-04-25, 36 (1): 81–84 [2019-01-19]. ISSN 0920-5861. doi:10.1016/S0920-5861(96)00199-X.

[5] Takahito Itoh, Yosiaki Ichikawa, Takahiro Uno, Masataka Kubo, Osamu Yamamoto. Composite polymer electrolytes based on poly(ethylene oxide), hyperbranched polymer, BaTiO3 and LiN(CF3SO2)2. Solid State Ionics. 2003-01-01, 156 (3): 393–399 [2019-01-19]. ISSN 0167-2738. doi:10.1016/S0167-2738(02)00682-3.

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