A series of new hydrophobic ionic liquids comprising N-alkyl(alkyl ether)-N-methylpyrrolidinium and perfluoroethyltrifluoroborate were prepared and characterized. The new [C2F5BF3]−-based salts show lower melting points than the corresponding [BF4]−-based ones. Of these new salts, five are liquids at room temperature and show very low viscosities (37–71 cP at 25 °C), high ionic conductivities (3.0–6.8 mScm−1) and wide electrochemical windows.
Thermochemistry of the pyridinium- and pyrrolidinium-based ionic liquids
作者:Sergey P. Verevkin、Ricardas V. Ralys、Vladimir N. Emel’yanenko、Dzmitry H. Zaitsau、Christoph Schick
DOI:10.1007/s10973-012-2725-4
日期:2013.4
We applied DSC for the determination of enthalpies of synthesis reactions of pyridinium- and pyrrolidinium-based ionic liquids (ILs) from pyridine (or N-methyl-pyrrolidine) and n-alkyl bromides (with n = 4, 5, 6, 7, and 8). The combination of reaction enthalpy measurements by DSC with modern high-level first-principles calculations opens valuable indirect thermochemical options to obtain values of enthalpies of the formation and vaporization enthalpies of ILs.
Halogen-free pyrrolidinium bis(mandelato)borate ionic liquids: some physicochemical properties and lubrication performance as additives to polyethylene glycol
作者:Mamoun Taher、Faiz Ullah Shah、Andrei Filippov、Patrick de Baets、Sergei Glavatskih、Oleg N. Antzutkin
DOI:10.1039/c4ra02551b
日期:——
Friction coefficients for a pyrrolidinium orthoborate ionic liquid as 3 wt% additive in PEG, neat PEG and 5W40.
一种吡咯烷基正硼酸盐离子液体作为PEG中3 wt%添加剂、纯PEG和5W40中的摩擦系数。
AN ELECTROLYTE AND A BATTERY WITH SAID ELECTROLYTE
申请人:High Tech Battery Inc.
公开号:EP3799184A1
公开(公告)日:2021-03-31
An electrolyte for a lithium-ion battery, and a battery thereof, comprising a lithium salt, a non-aqueous organic solvent which includes a carbonate-based solvent, a flame retardant, a film former and a stabilizing medium. The flame retardant comprises PYR1RPF6 (N-Methyl-N-alkylpyrrolidinium Hexafluorophosphate Salt) and a battery thereof.
electrochemical energy‐storage devices is one of the most appealing and emerging options. However, although ILs are hailed as safer and eco‐friendly electrolytes, to overcome the limitations imposed by the highly volatile/combustible carbonate‐based electrolytes, full‐scale and precise appraisal of their overall safety levels under abuse conditions still needs to be fully addressed. With the aim of providing