The present invention provides methods for producing bis(fluorosulfonyl) compounds of the formula:
F—S(O)2—Z—S(O)2—F I
by contacting a nonfluorohalide compound of the formula:
X—S(O)2—Z—S(O)2—X
with bismuth trifluoride under conditions sufficient to produce the bis(fluorosulfonyl) compound of Formula I, where Z and X are those defined herein.
Method for fluorinating a compound comprising a halosulphonyl or dihalophosphonyl group
申请人:——
公开号:US20040097757A1
公开(公告)日:2004-05-20
The invention relates to a fluorination process for producing fluorinated compounds.
The process consists in reacting a compound (I) corresponding to the formula
1
with an ionic fluoride of a monovalent cation. M represents H, an alkali metal, a quaternary phosphonium group or a quaternary ammonium group. Y represents SO
2
and m is 1, or else Y is PO and m is 2. Z represents CR
2
, N or P. R
1
represents an electron-withdrawing group which has a Hammet &sgr;
P
parameter of greater than 0.4. R
2
represents a carbonaceous and/or electron-withdrawing group. X represents a halogen other than a fluorine.
The fluorinated compounds obtained are of use in particular as electrolytes in lithium batteries.
PRODUCTION PROCESS FOR FLUOROSULFONYLIMIDE AMMONIUM SALT
申请人:Tsubokura Shiro
公开号:US20130331609A1
公开(公告)日:2013-12-12
A compound [II] such as ammonium N,N-di(fluorosulfonyl)imide is obtained by reacting a compound [I] such as N,N-di(chlorosulfonyl)imide and NH
4
F (HF)
p
. A compound [IV] such as an N,N-di(fluorosulfonyl)imide alkali metal salt is obtained by reacting the obtained compound [II] and an alkali metal compound or the like.
Abstract A newroute for the preparation of Li and Na salts of imido-bis(sulfuric acid) difluoride from KN(SO2F)2 as a starting material is described. KN(SO2F)2 was converted to Li and Na salts by metathetical reactions with lithium and sodium perchlorates in acetonitrile, while Rb and Cs salts were obtained from imido-bis(sulfuric acid) difluoride liberated from its K-salt. The crystal structure of
Unveiling ion-coordination in super-concentrated borate-based ionic liquid electrolyte
作者:Dale T. Duncan、Isuru E. Gunathilaka、Maria Forsyth、Douglas R. MacFarlane、Mega Kar
DOI:10.1016/j.electacta.2023.143398
日期:2023.12
candidates to complement the existing suite of ionic liquid electrolyte anions, particularly with the recent preparation of the ionic liquid N-ethyl-N,N,N-tris(2-(2-methoxyethoxy)ethyl)ammoniumtetrakis(1,1,1- 3,3,3-hexafluoroisopropoxy)borate ([N2(2O2O1)3][B(hfip)4]) which shows excellent properties for sodium battery technologies. In this work, we report physicochemical and electrochemical characterisation
氟硼酸盐阴离子已成为补充现有离子液体电解质阴离子系列的有希望的候选者,特别是最近制备的离子液体N-乙基-N,N,N-三(2-(2-甲氧基乙氧基)乙基)铵四(1,1,1- 3,3,3-六氟异丙氧基)硼酸盐([N 2(2O2O1)3 ][B(hfip) 4 ])在钠电池技术方面表现出优异的性能。在这项工作中,我们报告了具有不同 Na[FSI] 浓度的[N 2(2O2O1)3 ][B(hfip) 4 ] 电解质的物理化学和电化学表征,证明了等摩尔的 Na[FSI]:[N 2(2O2O1)3 ][B(hfip) 4 ] 混合物可提供最佳的离子行为。通过钠对称电池中的钠循环评估优化电解质的电化学性能,该电池在 0.5 mA cm -2下表现出对 Na 的电化学稳定性超过 100 个循环。循环稳定性归因于主要源自[FSI] -及其分解产物的低阻抗界面。光谱研究识别了 Na +的配位环境,其中 [N 2(2O2O1)3