936049
Sodium bis(trifluoromethylsulfonyl)imide
≥99.5% trace metals basis, anhydrous, battery grade
Synonym(s):
Sodium trifluoromethanesulfonimide, NaTFSI, Sodium triflimide, Sodium bis(trifluoromethylsulfonyl)imide
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About This Item
Empirical Formula (Hill Notation):
C2F6NNaO4S2
CAS Number:
Molecular Weight:
303.14
UNSPSC Code:
12352104
MDL number:
NACRES:
NA.21
grade
battery grade
Quality Segment
assay
≥99.5% trace metals basis
form
powder
impurities
≤5000 ppm (trace metals analysis), ≤5000 ppm Trace metals
mp
257.1-258.4 °C
application(s)
battery manufacturing
battery precursors
SMILES string
FC(F)(F)S(=O)(=O)N([Na])S(=O)(=O)C(F)(F)F
InChI
1S/C2F6NO4S2.Na/c3-1(4,5)14(10,11)9-15(12,13)2(6,7)8;/q-1;+1
InChI key
YLKTWKVVQDCJFL-UHFFFAOYSA-N
General description
Sodium bis(trifluoromethanesulfonyl)imide, abbreviated NaTFSI, is a white, crystalline salt. It is hygroscopic and deliquescent and usually stored under inert atmosphere. NaTFSI is soluble in water, carbonates (including dimethyl carbonate, diethyl carbonate, and propylene carbonate), acetonitrile, triglyme, dimethoxyethane, trimethyl phosphate, and many of the solvents commonly used in batteries.
Application
The primary application of NaTFSI is as an electrolytic salt in sodium-ion batteries. Researchers have found that NaTFSI dissolved in organic solvents[1] and, more recently, in ionic liquids[2,3] serve as high-performing electrolytes with a broad operating voltage exceeding 3 V. In addition, in the application of solid electrolytes for sodium-ion batteries, NaTFSI is often added to poly(ethylene oxide)-ceramic composites because it increases the ionic conductivity of the composite.[4,5]
signalword
Danger
hcodes
Hazard Classifications
Skin Corr. 1B
Storage Class
8A - Combustible corrosive hazardous materials
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
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