高等学校化学学报

高等学校化学学报 ›› 2004, Vol. 25 ›› Issue (11): 2116.

• 研究快报 • 上一篇    下一篇

中性分子1,3-氮氧杂环-戊-2-酮与二(三氟甲基磺酸酰)亚胺锂形成的新型室温熔盐

陈人杰1,3, 吴锋1,3, 栾和林2, 吴萌2, 于慧芳1   

  1. 1. 北京理工大学化工与环境学院, 北京100081;
    2. 北京矿冶研究总院, 北京100081;
    3. 国家高技术绿色材料发展中心, 北京100081
  • 收稿日期:2004-07-20 出版日期:2004-11-24 发布日期:2004-11-24
  • 基金资助:

    国家重点基础研究发展计划(批准号:2002CB211800);国家基础研究重大项目前期研究专项基金(批准号:2001CCA05000)资助.

New Room-temperature Molten Salt Based on OZO of Neutral Molecule with LiTFSI

CHEN Ren-Jie1,3, WU Feng1,3, LUAN He-Lin2, WU Meng2, YU Hui-Fang1   

  1. 1. School of Chemical Engineering and Environment Science, Beijing Institute of Technology, Beijing 100081, China;
    2. Beijing General Research Institute of Mining and Metallurgy, Beijing 100044, China;
    3. National Development Center of High Technology Green Materials, Beijing 100081, China
  • Received:2004-07-20 Online:2004-11-24 Published:2004-11-24

PDF (PC)

被引次数

4

关键词: 室温熔盐, 1, 3-氮氧杂环-戊-2-酮, 二(三氟甲基磺酸酰)亚胺锂, 热学性质, 电化学性质

Abstract: The new room-temperature molten salt was prepared based on LiTFSI[LiNC(SO2CF3)2] with OZO(C3H5NO2) which were not reported in literature. Its thermal and electrochemical properties were studied by differential scanning calorimetry, ac impedance spectroscopy and cyclic voltammertry respectively. The results indicated that the structure symmetry of the molecule was depressed and the extent of charges delocalization was expanded, because of introducing oxygen atom of differential electronegativity in OZO molecule. DSC analysis showed that the LiTFSI-OZO molten salt has the excellent thermal stability and its eutectic temperature is below about 223.15 K. Meanwhile, the conductivity of LiTFSI-OZO molten salt at a molar ratio of 1:4.5 is 0.75×10-3 S/cm at 298.15 K and 3.50×10-3 S/cm at 333.15 K. CV analysis showed that the electrochemical window of the sample is about 4 V.

Key words: Room-temperature molten salt, 1,3-Oxazolidone, LiTFSI, Thermal property, Electrochemical property

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