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Merck
CN

936073

Sigma-Aldrich

Calcium(II) bis(trifluoromethylsulfonyl)imide

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≥99.5% trace metals basis, anhydrous, battery grade

Synonym(s):

Calcium(II) bis(trifluoromethanesulfonimide), Ca(TFSI)2, Ca(NTf2)2, Calcium triflimide

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About This Item

Empirical Formula (Hill Notation):
C4CaF12N2O8S4
CAS Number:
165324-09-4
Molecular Weight:
600.37
MDL number:
MFCD14156019
UNSPSC Code:
12352104

Key Documents

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grade

battery grade

Quality Level

100

Assay

≥99.5% trace metals basis

form

powder

greener alternative product characteristics

Design for Energy Efficiency
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sustainability

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impurities

≤5000 ppm trace metals

mp

>300 °C

application(s)

battery manufacturing

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Enabling

SMILES string

FC(F)(F)S(=O)(=O)N([Ca]N(S(=O)(=O)C(F)(F)F)S(=O)(=O)C(F)(F)F)S(=O)(=O)C(F)(F)F

InChI

1S/2C2F6NO4S2.Ca/c2*3-1(4,5)14(10,11)9-15(12,13)2(6,7)8;/q2*-1;+2

InChI key

WFABOCFDABTAPE-UHFFFAOYSA-N

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General description

Calcium bis(trifluoromethylsulfonyl)imide (Ca(TFSI)2) is a white powder that is highly soluble in polar organic solvents. Ca(TFSI)2 exhibits good thermal and electrochemical stability. Our battery grade Ca(TFSI)2 offers high purity and low water content, which is suitable for battery applications.
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Application

Calcium bis(trifluoromethanesulfonyl)imide (Ca(NTf2)2) is a chemical compound commonly used as an electrolyte in electrochemical applications such as calcium-ion batteries and supercapacitors. It is often used in combination with other electrolytes, additives, and solvents to form tailored electrolyte formulations to enhance the performance, stability, and safety of electrochemical devices There have been reports using Ca(NTf2)2 in lithium-ion batteries. Reesearch shows that mixing Ca(NTf2)2 into LiPF6-based electrolytes yielded higher capacity, superior cyclability, and higher Coulombic efficiencies in both half-cell and full-cell configurations when compared with standard electrolytes in lithium-ion batteries

Pictograms

Corrosion
GHS05

Signal Word

Danger

Hazard Statements

H314

Hazard Classifications

Skin Corr. 1B

Storage Class Code

8A - Combustible corrosive hazardous materials

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Information

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Certificates of Analysis (COA)

Lot/Batch Number
MKCW2153

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Alkaline-earth bis(trifluoromethanesulfonimide) additives for efficient and stable perovskite solar cells
Pham N D, et al.
Nano Energy, 69, 104412-104412 (2020)
Towards novel calcium battery electrolytes by efficient computational screening
Rafael B, et al.
Energy Storage Materials, 39, 89-95 (2021)
Using Mixed Salt Electrolytes to Stabilize Silicon Anodes for Lithium-Ion Batteries via in Situ Formation of Li?M?Si Ternaries (M = Mg, Zn, Al, Ca)
Han B, et al.
ACS Applied Materials & Interfaces, 11, 29780?29790-29780?29790 (2019)

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