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Key Documents

936014

Sigma-Aldrich

Sodium bis(trifluoromethanesulfonyl)imide solution

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in ethylene carbonate, dimethylcarbonate, and ethylmethylcarbonate, 1.0 M NaTFSI in EC/DMC/EMC=1:1:1 (v/v/v), battery grade

Synonym(s):

1.0 M NaTFSI in EC/DMC/EMC electrolyte

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About This Item

UNSPSC Code:
12352600

grade

battery grade

Quality Level

100

form

solution

greener alternative product characteristics

Design for Energy Efficiency
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sustainability

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concentration

0.95-1.10 M (NaPF6)

impurities

≤100 ppm H2O

application(s)

battery manufacturing

greener alternative category

Enabling

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General description

Battery grade sodium bis(trifluoromethanesulfonyl)imide solution in ethylene carbonate, dimethylcarbonate, and ethylmethylcarbonate is a clear solution composed of a 1:1:1 volume ratio of three organic solvents - ethylene carbonate (EC), dimethyl carbonate (DMC), and ethyl methyl carbonate (EMC) - and 1.0 M concentration of sodium bis(trifluoromethanesulfonyl)imide (NaTFSI) as the electrolyte salt.
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Application

The main application of 1.0 M NaTFSI in EC/DMC/EMC=1:1:1 (v/v/v), battery grade is as a electrolyte for sodium-ion batteries. We offer the superior electrolyte with controlled impurities, including water, acid, and trace metals content. Ethylene carbonate (EC) is known to form a stable, conductive solid electrolyte interphase (SEI) with many cathode and anode materials, including hard carbon and sodium metal oxides Ethyl methyl carbonate (EMC) and dimethyl carbonate (DMC) have lower viscosities and melting points than EC, and when mixed with EC result in an electrolyte with a good balance between desirable electrochemical properties, high dielectric constant, and low viscosity.

Signal Word

Danger

Hazard Statements

H302,H314,H373

Hazard Classifications

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

Target Organs

Kidney

Storage Class Code

8A - Combustible corrosive hazardous materials

WGK

WGK 3

Certificates of Analysis (COA)

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In situ synthesis of hierarchical poly(ionic liquid)-based solid electrolytes for high-safety lithium-ion and sodium-ion batteries
Zhou D, et al.
Nano Energy, 33, 45-54 (2017)
Recent progress and perspective on electrolytes for sodium/potassium-based devices
Pan Q, et al.
Energy Storage Materials, 31, 328-343 (2020)

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