Lithium bis(trifluoromethanesulfonyl)imide

Lithium bis(trifluoromethane­sulfonyl)imide

Names
IUPAC name Lithium bis(trifluoromethylsulfonyl)azanide
Other names LiTFSI
Identifiers
CAS Number	90076-65-6  Y
3D model (JSmol)	Interactive image
ChemSpider	2058897
ECHA InfoCard	100.101.430
EC Number	415-300-0
PubChem CID	3816071
RTECS number	XR2775000
UNII	9Y730392A5  Y
CompTox Dashboard (EPA)	DTXSID8044468
InChI InChI=1S/C2F6NO4S2.Li/c3-1(4,5)14(10,11)9-15(12,13)2(6,7)8;/q-1;+1 Key: QSZMZKBZAYQGRS-UHFFFAOYSA-N
SMILES [Li+].C(F)(F)(F)S(=O)(=O)[N-]S(=O)(=O)C(F)(F)F
Properties
Chemical formula	LiC 2F 6NO 4S 2
Molar mass	287.09 g/mol
Appearance	White solid
Odor	odorless
Density	2.15 g/cm3 (20 °C) [1]
Melting point	236 °C (457 °F; 509 K)
Solubility in water	80.65% (22 °C) [2]
Hazards
GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H301, H310, H311, H314, H372, H373, H412
Precautionary statements	P260, P262, P264, P264+P265, P270, P273, P280, P301+P316, P301+P330+P331, P302+P352, P302+P361+P354, P304+P340, P305+P354+P338, P316, P317, P319, P321, P330, P361+P364, P363, P405, P501
Safety data sheet (SDS)
Related compounds
Other anions	Bistriflimide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). N  verify  (what is  YN ?) Infobox references

Lithium bis(trifluoromethanesulfonyl)imide, often simply referred to as LiTFSI, is a hydrophilic salt with the chemical formula LiC₂F₆NO₄S₂. ^[3] It is commonly used as Li-ion source in electrolytes for Li-ion batteries as a safer alternative to commonly used lithium hexafluorophosphate. ^[4] It is made up of one Li cation and a bistriflimide anion.

Because of its very high solubility in water (> 21 m), LiTFSI has been used as lithium salt in water-in-salt electrolytes for aqueous lithium-ion batteries. ^{[5] [6]}

References

1. "Safety Data Sheet - Lithium bis(trifluoromethanesulfonyl)imide, anhydrous, 99.99% trace metals basis". www.sigmaaldrich.com.
2. Gilbert, William J. R.; Safarov, Javid; Minnick, David L.; Rocha, M. Alejandra; Hassel, Egon P.; Shiflett, Mark B. (2017-06-05). "Density, Viscosity, and Vapor Pressure Measurements of Water + Lithium Bis(trifluoromethylsulfonyl)imide Solutions". Journal of Chemical & Engineering Data. 62 (7). American Chemical Society (ACS): 2056–2066. doi:10.1021/acs.jced.7b00135. ISSN   0021-9568.
3. Pubchem. "90076-65-6 | C2F6LiNO4S2 - PubChem". pubchem.ncbi.nlm.nih.gov. Retrieved 2017-03-11.
4. Kalhoff, Julian; Bresser, Dominic; Bolloli, Marco; Alloin, Fannie; Sanchez, Jean-Yves; Passerini, Stefano (2014-10-01). "Enabling LiTFSI-based Electrolytes for Safer Lithium-Ion Batteries by Using Linear Fluorinated Carbonates as (Co)Solvent". ChemSusChem. 7 (10): 2939–2946. Bibcode:2014ChSCh...7.2939K. doi:10.1002/cssc.201402502. ISSN   1864-564X. PMID   25138922.
5. Suo, Liumin; Borodin, Oleg; Gao, Tao; Olguin, Marco; Ho, Janet; Fan, Xiulin; Luo, Chao; Wang, Chunsheng; Xu, Kang (2015-11-20). ""Water-in-salt" electrolyte enables high-voltage aqueous lithium-ion chemistries". Science. 350 (6263): 938–943. doi:10.1126/science.aab1595. ISSN   0036-8075. PMID   26586759. S2CID   206637574.
6. Smith, Leland; Dunn, Bruce (2015-11-20). "Opening the window for aqueous electrolytes". Science. 350 (2015): 918. doi:10.1126/science.aad5575. ISSN   0036-8075. PMID   26586752. S2CID   206643843.