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919977

Sigma-Aldrich

Lithium bis(trifluoromethanesulfonyl)imide

greener alternative

anhydrous, 99.99% trace metals basis

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Synonym(s):
Bis(trifluoromethane)sulfonimide lithium salt, LiNTf2, LiTFSI, LiTf2N, Bis(trifluoromethylsulfonyl)amine lithium salt, Lithium bistrifluoromethanesulfonimidate
Linear Formula:
CF3SO2NLiSO2CF3
CAS Number:
Molecular Weight:
287.09
Beilstein/REAXYS Number:
6625414
MDL number:
UNSPSC Code:
12352111
NACRES:
NA.23

grade

anhydrous

Quality Level

assay

99.99% trace metals basis

greener alternative product characteristics

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Learn more about the Principles of Green Chemistry.

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mp

234-238 °C (lit.)

application(s)

battery manufacturing

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

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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.

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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

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable


Certificates of Analysis (COA)

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Qi Chen et al.
Journal of the American Chemical Society, 136(2), 622-625 (2013-12-24)
Hybrid organic/inorganic perovskites (e.g., CH3NH3PbI3) as light absorbers are promising players in the field of third-generation photovoltaics. Here we demonstrate a low-temperature vapor-assisted solution process to construct polycrystalline perovskite thin films with full surface coverage, small surface roughness, and grain
Spherical ordered mesoporous carbon nanoparticles with high porosity for lithium-sulfur batteries.
Jörg Schuster et al.
Angewandte Chemie (International ed. in English), 51(15), 3591-3595 (2012-03-03)
Liumin Suo et al.
Nature communications, 4, 1481-1481 (2013-02-14)
Liquid electrolyte plays a key role in commercial lithium-ion batteries to allow conduction of lithium-ion between cathode and anode. Traditionally, taking into account the ionic conductivity, viscosity and dissolubility of lithium salt, the salt concentration in liquid electrolytes is typically
Namyoung Ahn et al.
Journal of the American Chemical Society, 137(27), 8696-8699 (2015-07-01)
High efficiency perovskite solar cells were fabricated reproducibly via Lewis base adduct of lead(II) iodide. PbI2 was dissolved in N,N-dimethyformamide with equimolar N,N-dimethyl sulfoxide (DMSO) and CH3NH3I. Stretching vibration of S═O appeared at 1045 cm(-1) for bare DMSO, which was

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