Structure of LiN(CF3SO2)2, a novel salt for electrochemistry

Raman Spectroscopic Study on Alkaline Metal Ion Solvation in 1-Butyl-3-methylimidazolium Bis(trifluoromethanesulfonyl)amide Ionic Liquid

“…41 According to their simulations, the Li + ion is coordinated by 4 oxygen atoms, and 65% of the Li + ions exist as the oligomer, in which two Li + ions are bridged by three TFSA -ions in a bidentate manner, i.e., two oxygen atoms in a SO2 group coordinate to a Li + ion. Such a solvation structure agrees with the LiTFSA crystal structure, 42 while differing from that of Li2 [EMI][TFSA]3. 43 On the other hand, according to MD simulations based on the effective pair potentials, 44 three TFSAions solvate to a Li + ion, which is surrounded by five oxygen atoms, i.e., two of bidentate TFSA -and one mono-dentate.…”

Poly[bis(acetonitrile-κN)bis[μ3-bis(trifluoromethanesulfonyl)imido-κ4O,O′:O′′:O′′′]dilithium]

“…For the structure of LiN(SO 2 CF 3 ) 2 , see: Nowinski et al (1994). For a related structure of LiN(SO 2 CF 3 ) 2 , see: Henderson et al (2005); Davidson et al (2003); Brouillette et al (2002); Dillon et al (2001).…”

Lithium Polymer Electrolytes Based on Sulfonated Poly(ether ether ketone) for Lithium Polymer Batteries

“…[35] In the XRD pattern of the SPEEK-Li membranes, the absence of any sharp peaks corresponding to LiTFSI confirms the complete dissociation of the lithium salt in the polymer matrix. Thus, the solvation of the salt, that is, Li + -SPEEK interactions through complexation, is clearly observed.…”

“…This could be associated with a more disordered state in the polymer matrix as a result of the formation of ion pairs/multiples and is not related to pure LiTFSI, which shows sharp peaks (as reported in the literature). [17,35,38] The crystallite sizes were found to be 27.7, 8.55, and 11.5 nm for the 10, 20, and 30 wt.-% LiTFSIdoped SPEEK membranes, respectively. This implies that the 20 wt.-% LiTFSI-doped membrane has smaller crystallites or domains with a reduced degree of crystallinity, which enhances the local segmental motion of the polymer chains to result in increased free volume.…”