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Sigma-Aldrich

Bis(trifluoromethane)sulfonimide lithium salt

99.95% trace metals basis

Synonym(s):

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
Beilstein:
6625414
EC Number:
415-300-0
MDL number:
MFCD00210017
UNSPSC Code:
12352302
PubChem Substance ID:
24878293
NACRES:
NA.22

Quality Level

100

Assay

99.95% trace metals basis

mp

234-238 °C (lit.)

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

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General description

Bis(trifluoromethane)sulfonimide lithium salt is a synthetic reagent.

LiTFSI exhibits high ionic conductivity and electrochemical stability. Used as an electrolyte additive in energy storage devices.

Application

Bis(trifluoromethane)sulfonimide lithium salt may be used in the following studies:
  • As ionic liquid in the preparation of gel polymer electrolytes (GPEs) using solution casting technique.
  • To compose unique nonflammable electrolyte, having thermal stability beyond 200°C and a remarkably high transference number, for lithium-ion batteries.
  • As electrolyte for the Li-O2 batteries.
  • To compose the solid polymer electrolytes for lithium batteries.

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 Code

6.1B - Non-combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

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Efficiency improvement using bis (trifluoromethane) sulfonamide lithium salt as a chemical additive in porphyrin based organic solar cells
Arrechea S, et al.
Nanoscale, 8(41), 17953-17962 (2016)
Dominica H C Wong et al.
Proceedings of the National Academy of Sciences of the United States of America, 111(9), 3327-3331 (2014-02-12)
The flammability of conventional alkyl carbonate electrolytes hinders the integration of large-scale lithium-ion batteries in transportation and grid storage applications. In this study, we have prepared a unique nonflammable electrolyte composed of low molecular weight perfluoropolyethers and bis(trifluoromethane)sulfonimide lithium salt.
Mario Marinaro et al.
Beilstein journal of nanotechnology, 4, 665-670 (2013-11-10)
Aprotic rechargeable Li-O2 batteries are currently receiving considerable interest because they can possibly offer significantly higher energy densities than conventional Li-ion batteries. The electrochemical behavior of Li-O2 batteries containing bis(trifluoromethane)sulfonimide lithium salt (LiTFSI)/tetraglyme electrolyte were investigated by galvanostatic cycling and
Nurul Nadiah Sa'adun et al.
TheScientificWorldJournal, 2014, 254215-254215 (2014-11-29)
Gel polymer electrolytes (GPEs) are developed using poly(1-vinylpyrrolidone-co-vinyl acetate) [P(VP-co-VAc)] as the host polymer, lithium bis(trifluoromethane) sulfonimide [LiTFSI] as the lithium salt and ionic liquid, and 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl) imide [EMImTFSI] by using solution casting technique. The effect of ionic liquid
Hangchao Wang et al.
Advanced materials (Deerfield Beach, Fla.), 32(37), e2001259-e2001259 (2020-08-01)
Lithium-metal batteries (LMBs) with high energy densities are highly desirable for energy storage, but generally suffer from dendrite growth and side reactions in liquid electrolytes; thus the need for solid electrolytes with high mechanical strength, ionic conductivity, and compatible interface
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Ionic Liquids for Energy Storage Applications

Ionic liquids, also called room temperature ionic liquids, are organic salts that are liquid at, or close to, room temperature.

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