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Merck
CN

936006

Sodium bis(trifluoromethanesulfonyl)imide solution

greener alternative

in ethylene carbonate, dimethyl carbonate, 1.0 M NaTFSI in EC/DMC=50/50 (v/v), battery grade

Synonym(s):

1.0 M NaTFSI in EC/DMC electrolyte

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About This Item

UNSPSC Code:
12352600
NACRES:
MA.24

Key Documents

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Product Name

Sodium bis(trifluoromethanesulfonyl)imide solution, in ethylene carbonate, dimethyl carbonate, 1.0 M NaTFSI in EC/DMC=50/50 (v/v), battery grade

grade

battery grade

form

solution

greener alternative product characteristics

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sustainability

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concentration

0.95-1.05 M (NaPF6)

impurities

≤100 ppm H2O

anion traces

chloride (Cl-): ≤200 ppm
sulfate (SO42-): ≤200 ppm

application(s)

battery manufacturing

greener alternative category

Enabling

Quality Level

100

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Application

The main application of 1.0 M NaTFSI in EC/DMC=50/50 (v/v), battery grade is as an electrolyte for sodium-ion batteries. NaTFSI-based electrolytes have advantages over NaPF6-based electrolytes because they are less sensitive to hydrolysis, safer to handle, and are more stable thermally and electrochemically. NaTFSI offers improved higher thermal stability compared to NaPF6 and NaBF4, and higher conductivity than NaTfO. The blend of ethylene carbonate and dimethyl carbonate achieves a low viscosity and good wettability of most polyolefin separators.[1,2]

General description

Sodium bis(trifluoromethanesulfonyl)imide solution in ethylene carbonate and dimethylcarbonate, 1.0 M NaTFSI in EC/DMC=50/50 (v/v) is a clear solution of battery grade sodium bis(trifluoromethanesulfonyl)imide (NaTfSI) dissolved in binary mixture of EC/DMC=50/50 (v/v).
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Danger

Hazard Classifications

Acute Tox. 4 Oral - Eye Dam. 1 - Flam. Liq. 3 - Skin Corr. 1B - STOT RE 2 Oral

target_organs

Kidney

Storage Class

3 - Flammable liquids

wgk

WGK 3

flash_point_f

77.0 °F

flash_point_c

25 °C

Regulatory Information

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Certificates of Analysis (COA)

Lot/Batch Number
MKCW2577
MKCW2578

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Non-aqueous electrolytes for sodium-ion batteries
A. Ponrouch, et al.
Journal of Material Chemistry A, 3, 22-42 (2015)
SEI Composition on Hard Carbon in Na-Ion Batteries After Long Cycling: Influence of Salts (NaPF6, NaTFSI) and Additives (FEC, DMCF)
J. Fondard ,et al.
Journal of the Electrochemical Society, 167 (2020)

Articles

Role of Advanced Electrolytes in Sodium Ion Batteries

Discover the role of electrolytes in sodium-ion batteries, to enhance performance, safety, and sustainability in energy storage solutions.

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