Lithium Bis(fluorosulfonyl)imide (LiFSI), >99.9% - MSE Supplies LLC

MSE PRO Lithium Bis(fluorosulfonyl)imide (LiFSI) Electrolyte Additive for Battery Research, >99.9%, 50g

SKU: CM1020

  • $ 34995
  • Save $ 36500

MSE PRO™ Lithium Bis(fluorosulfonyl)imide (LiFSI) Electrolyte Additive for Battery Research, >99.9%

Lithium Bis(fluorosulfonyl)imide (LiFSI) is a white powder with high lithium ion conductivity. It has high stability (no decomposition below 200°C), good hydrolytic stability, excellent low temperature performance and environmental friendliness, etc. Thus it is considered an important electrolyte material in new energy materials such as lithium-ion batteries. 

Technical Data

Item Value
Chemical Name Lithium Bis(fluorosulfonyl)imide
  • LiFSI
  • LiFSA
  • Lithium bis(fluorosulfonyl)amide
  • Lithium bis(fluorosulfonyl)imido
  • Lithium imidodisulfuryl fluoride
Chemical Formula F2LiNO4S2
SKU# CM1020
CAS# 171611-11-3
Packing size 50g/bottle
Molecular Weight 187.07 g/mol
Appearance White powder
Purity >99.9%
Water Content  <80 ppm
Melting Point 140 °C
Vapor Pressure 27.198-31.064 Pa at 20-25 ℃
Density 1.052 g/cm3 at 25℃
>200 °C
Insoluble Substance ≤300 ppm
Free Acid < 5 ppm
Solubility in Water Soluble
Storage Store under inert gas
Condition to Avoid Moisture



[1] Synergistic effect between lithium bis (fluorosulfonyl) imide (LiFSI) and lithium bis-oxalato borate (LiBOB) salts in LiPF6-based electrolyte for high-performance Li-ion batteries. Electrochimica Acta 127 (2014): 39-44.

[2] Lithium bis (fluorosulfonyl) imide (LiFSI) as conducting salt for nonaqueous liquid electrolytes for lithium-ion batteries: Physicochemical and electrochemical properties. Journal of Power Sources 196, no. 7 (2011): 3623-3632.

[3] Comparative study on lithium borates as corrosion inhibitors of aluminum current collector in lithium bis (fluorosulfonyl) imide electrolytes. Journal of Power Sources 296 (2015): 197-203.