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544094

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.)

functional group

fluoro

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

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Certificates of Analysis (COA)

Lot/Batch Number
WXBD6787V
MKCP4495
MKCP4496
MKCP4494
MKCP4493

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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
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.
Enrique D Gomez et al.
Nano letters, 9(3), 1212-1216 (2009-02-06)
Energy-filtered transmission electron microscopy (EFTEM) was used to determine the distribution of lithium ions in solid polymer electrolytes for lithium batteries. The electrolytes of interest are mixtures of bis(trifluoromethane)sulfonimide lithium salt and symmetric poly(styrene-block-ethylene oxide) copolymers (SEO). In contrast to
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, also called room temperature ionic liquids, are organic salts that are liquid at, or close to, room temperature.

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