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Lithium bis(trifluoromethanesulfonyl)imide






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From Wikipedia, the free encyclopedia
  

Lithium bis(trifluoromethane­sulfonyl)imide
Names
IUPAC name

Lithium bis(trifluoromethylsulfonyl)azanide

Other names

LiTFSI

Identifiers

CAS Number

3D model (JSmol)
ECHA InfoCard 100.101.430 Edit this at Wikidata

PubChem CID
RTECS number
  • XR2775000
UNII

CompTox Dashboard (EPA)

  • 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

  • [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 287.075 g/mol
Appearance White solid
Odor odorless
Density 1.33 g/cm3
Melting point 236 °C (457 °F; 509 K)

Solubility in water

 80.65% (22 °C)[1]
Hazards
Safety data sheet (SDS) [1]
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 checkY☒N ?)

Infobox references

Lithium bis(trifluoromethanesulfonyl)imide, often simply referred to as LiTFSI, is a hydrophilic salt with the chemical formula LiC2F6NO4S2.[2] It is commonly used as Li-ion source in electrolytes for Li-ion batteries as a safer alternative to commonly used lithium hexafluorophosphate.[3] It is made up of one Li cation and a bistriflimide anion.

Because of its very high solubility in water (>21m), LiTFSI has been used as lithium salt in water-in-salt electrolytes for aqueous lithium-ion batteries.[4][5]

References[edit]

  1. ^ 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.
  • ^ Pubchem. "90076-65-6 | C2F6LiNO4S2 - PubChem". pubchem.ncbi.nlm.nih.gov. Retrieved 2017-03-11.
  • ^ 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. doi:10.1002/cssc.201402502. ISSN 1864-564X. PMID 25138922.
  • ^ 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.
  • ^ 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.
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