Lithium Bis(fluorosulfonyl)imide Chemical Properties

Melting point:

124-128℃

Density 

1.052g/cm3 at 25℃

vapor pressure 

27.198-31.064Pa at 20-25℃

storage temp. 

under inert gas (nitrogen or Argon) at 2-8°C

Water Solubility 

Soluble in water

form 

Solid

color 

White to Almost white

InChI

InChI=1S/F2NO4S2.Li/c1-8(4,5)3-9(2,6)7;/q-1;+1

InChIKey

HOQSGMWVPMHPSZ-UHFFFAOYSA-N

SMILES

[N-](S(=O)(F)=O)S(=O)(F)=O.[Li+]

LogP

3 at 20℃ and pH6

EPA Substance Registry System

Imidodisulfuryl fluoride, lithium salt (1:1) (171611-11-3)

Safety Information

RIDADR 

1759

HS Code 

2826.19.9000

HazardClass 

8

PackingGroup 

II

Lithium Bis(fluorosulfonyl)imide Usage And Synthesis

Chemical Properties

White to Almost white powder to crystal with Molecular Crystal Electrolytes with High Lithium Ion Conductivity.

Characteristics

Lithium bis(fluorosulfonyl)imide(LiFSI) is a important high-performance electrolyte material in new energy devices such as lithium-ion batteries and supercapacitors. It has the advantages of high stability (no decomposition below 200°C), excellent low temperature performance, good hydrolytic stability and environmental friendliness, etc., as the next generation of lithium hexafluorophosphate electrolyte lithium salt for secondary lithium ion batteries.

Uses

Lithium bis(fluorosulfonyl)imide is a promising new electrolyte additive for lithium ion batteries showing increased conductivity over LiPF6. Bis(fluorosulfonyl)imide has also been tested in next generation gel polymer electrolytes with improved safety properties.

Preparation

Lithium bis(fluorosulfonyl)imide (LiFSI) was synthesized by a metathesis reaction between KFSI and LiBF4 in DMC in nearly quantitative yield, similar to the preparation of its analogue, lithium (fluorosulfonyl) (pentafluoroethanesulfonyl)imide (LiFPFSI).
DOI: https://doi.org/10.1016/j.jpowsour.2010.12.040

Lithium Bis(fluorosulfonyl)imide(171611-11-3)Related Product Information

• Lithium titanate, nanopowder
• Lithium bis(trimethylsilyl)amide
• BIS(FLUOROSULFONYL)IMIDE POTASSIUM SALT
• LITHIUM COBALT(III) OXIDE
• Lithium amide
• N-AMYL NITRATE
• 8-Hydroxyquinoline
• Methyl propionate
• Lithium bis(trifluoromethanesulphonyl)imide
• FLORASULAM
• Lithium tetrafluoroborate
• Thionyl chloride
• Vinylene carbonate
• Fluoroethylene carbonate
• Sulfuryl chloride
• Lithium trifluoromethanesulfonate
• Lithium hexafluorophosphate
• Trifluoromethanesulfonimide