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919977

Lithium bis(trifluoromethanesulfonyl)imide

99.99% trace metals basis

Sustainability features

Synonym(s):

Bis(trifluoromethane)sulfonimide lithium salt, LiNTf2, LiTFSI, LiTf2N, Bis(trifluoromethylsulfonyl)amine lithium salt, Lithium bistrifluoromethanesulfonimidate

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About This Item

Linear Formula:
CF3SO2NLiSO2CF3
CAS Number:
90076-65-6
Molecular Weight:
287.09
NACRES:
NA.23
UNSPSC Code:
12352111
Beilstein/REAXYS Number:
6625414
MDL number:
MFCD00210017
eCl@ss:
32150917
Assay:
99.99% trace metals basis
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Quality Segment

assay

99.99% trace metals basis

reaction suitability

core: lithium

sustainability

Sustainability features

mp

234-238 °C (lit.)

application(s)

battery manufacturing
battery precursors
catalysts
material synthesis precursor

greener alternative category

SMILES string

[Li]N(S(=O)(=O)C(F)(F)F)S(=O)(=O)C(F)(F)F

InChI

1S/C2F6NO4S2.Li/c3-1(4,5)14(10,11)9-15(12,13)2(6,7)8;/q-1;+1

InChI key

QSZMZKBZAYQGRS-UHFFFAOYSA-N

General description

Lithiumbis(trifluoromethanesulfonyl)imide (LiTFSI) is an anhydrous lithium salt known for its hydrophilic properties and excellent solubility in water. LiTFSI is often used as an electrolyte salt in lithium-ion batteries and other electrochemical energy storage systems. It helps improve the electrolyte′s conductivity, stability, and safety, thereby enhancing the overall performance of the battery. The hydrophilic nature of LiTFSI enables effective ion transport and enhances the overall electrochemical properties of batteriesProperties of LiTFSI:
  • High electrochemical stability
  • High lithium-ion conductivity
  • Thermal stability
  • Hydrophilic nature
This product aligns with one or more of the 12 Principles of Green Chemistry Click here for more information.

Application

Lithium bis(trifluoromethanesulfonyl)imide can be used as:
  • An additive in the development of dual-functional separator coating materials. These materials are based on covalent organic frameworks (COFs) and are specifically designed for use in high-performance lithium-selenium sulfide batteries. The Li-SeS2 battery achieved outstanding performance in terms of energy storage and stability. It exhibited a specific capacity of 844.6 mA h g-1 at 0.5C and a SeS2 loading of 2 mg cm-2.
  • As an additive in the electrolyte formulation along with polyethylene oxide for the development of solid-state lithium batteries. LiTFSI enhance the ionic conductivity of the PEO-based electrolyte, which is essential for the efficient transport of lithium ions.
  • As a key component in the development of a PEO/LiTFSI-coated polypropylene membrane. This membrane is designed for high-loading lithium–sulfur batteries to enhance battery performance, improve capacity, and extend cycle life.
  • As a component in the electrolyte system along with TEMPOL derivatives. The incorporation of LiTFSI in the electrolyte system enhances the stability and achieves an efficiency of 6.16% in solid-state fiber dye-sensitized solar cells.

Signal Word

Danger

Hazard Classifications

Acute Tox. 3 Dermal - Acute Tox. 3 Oral - Aquatic Chronic 3 - Eye Dam. 1 - Skin Corr. 1B - STOT RE 2 Oral

Target Organs

Nervous system

Storage Class

6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

Flash Point (°F)

Not applicable

Flash Point (°C)

Not applicable

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