The physicochemical and electrochemical properties of the water-soluble, N-methoxyethyl-N-methylpyrrolidinium trifluoromethanesulfonate (PYR1(2O1)OSO2CF3) ionic liquid (IL) were investigated and compared with those of commercial N-butyl-N-methylpyrrolidinium trifluoromethanesulfonate (PYR14OSO2CF3). The results have shown that the transport properties are well correlated with the theological and thermal behavior. The incorporation of an oxygen atom in the pyrrolidinium cation aliphatic side chain resulted in enhanced flexibility of the ether side chain, this supporting for the higher ionic conductivity, self-diffusion coefficient and density of PYR1(2O1)OSO2CF3 with respect to PYR14OSO2CF3, whereas no relevant effect on the crystallization of the ionic liquid was found. Finally, the presence of the ether side chain material in the pyrrolidinium cation led to a reduction in electrochemical stability, particularly on the cathodic verse. (C) 2013 Elsevier Ltd. All rights reserved.
申请人:National University Corporation Tottori University
公开号:US20220135602A1
公开(公告)日:2022-05-05
Provided is a silyl ether-containing sulfonate salt that contains an anion represented by formula (1) and a cation.
(In the formula, R
1
to R
4
are each independently a C1-4 alkyl group. m is an integer from 1 to 3. n is an integer from 2 to 8.)
ELECTROLYTE SALT AND ELECTROLYTE FOR ELECTRICITY STORAGE DEVICE, AND ELECTRICITY STORAGE DEVICE
申请人:NISSHINBO HOLDINGS INC.
公开号:US20150291633A1
公开(公告)日:2015-10-15
Provided is an electrolyte salt comprising a quaternary ammonium cation indicated by formula (1) and a trimethylsilyl alkanesulfonate anion indicated by formula (2).
(In the formula, R
1
-R
4
each independently indicate a C1-4 alkyl group or an alkoxyalkyl group indicated by —(CH
2
)
n
—OR. Any two among R
1
-R
4
can mutually bond and form a ring together with a nitrogen atom to which same have bonded. The remaining two can mutually bond and form a spiro ring having a nitrogen atom as the spiro atom therefor. R indicates a methyl group or an ethyl group. n indicates 1 or 2 and m indicates 2 or 3.)