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Names | |
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IUPAC name Lithium bis(trifluoromethylsulfonyl)azanide | |
Other names LiTFSI | |
Identifiers | |
3D model (JSmol) | |
ChemSpider | |
ECHA InfoCard | 100.101.430 |
EC Number |
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PubChem CID | |
RTECS number |
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UNII | |
CompTox Dashboard (EPA) | |
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Properties | |
LiC 2F 6NO 4S 2 | |
Molar mass | 287.09 g/mol |
Appearance | White solid |
Odor | odorless |
Density | 2.15 g/cm3 (20 °C) [1] |
Melting point | 236 °C (457 °F; 509 K) |
80.65% (22 °C) [2] | |
Hazards | |
GHS labelling: | |
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Danger | |
H301, H310, H311, H314, H372, H373, H412 | |
P260, P262, P264, P264+P265, P270, P273, P280, P301+P316, P301+P330+P331, P302+P352, P302+P361+P354, P304+P340, P305+P354+P338, P316, P317, P319, P321, P330, P361+P364, P363, P405, P501 | |
Safety data sheet (SDS) | |
Related compounds | |
Other anions | Bistriflimide |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). |
Lithium bis(trifluoromethanesulfonyl)imide, often simply referred to as LiTFSI, is a hydrophilic salt with the chemical formula LiC2F6NO4S2. [3] It is commonly used as Li-ion source in electrolytes for Li-ion batteries as a safer alternative to commonly used lithium hexafluorophosphate. [4] It is made up of one Li cation and a bistriflimide anion.
Because of its very high solubility in water (> 21 m), LiTFSI has been used as lithium salt in water-in-salt electrolytes for aqueous lithium-ion batteries. [5] [6]