| Identification | Back Directory | [Name]
Sodium Bis(fluorosulfonyl)imide | [CAS]
100669-96-3 | [Synonyms]
Na[(FSO2)2N]NaFSI
Sodium Bis(fluorosulfonyl)imide
Sodium(I) bis(fluorosulfonyl)imide 99.9%
Imidodisulfuryl fluoride, sodium salt (1:1) | [Molecular Formula]
F2NNaO4S2 | [MDL Number]
MFCD29905041 | [MOL File]
100669-96-3.mol | [Molecular Weight]
203.121 |
| Chemical Properties | Back Directory | [Melting point ]
109.0 to 114.0 °C | [density ]
2.4 g/cm3 | [solubility ]
0.1 M carbonate: soluble (lit.) || soluble (ethers: soluble(lit.)) || soluble (glymes: soluble(lit.)) || water: very soluble (lit.) | [Water Solubility ]
Soluble in water | [form ]
powder to crystal | [color ]
White to Almost white | [Major Application]
battery manufacturing | [InChI]
InChI=1S/F2NO4S2.Na/c1-8(4,5)3-9(2,6)7;/q-1;+1 | [InChIKey]
VCCATSJUUVERFU-UHFFFAOYSA-N | [SMILES]
[Na+].[N-](S(F)(=O)=O)S(F)(=O)=O |
| Hazard Information | Back Directory | [Uses]
A highly concentrated electrolyte based on sodium bis(fluorosulfonyl)imide (NaFSI) enables the use of Na metal anodes for room-temperature sodium metal batteries based on a Na3V2(PO4)3 cathode with the charging cut-off voltage of 3.7 V versus Na/Na+[1].
| [References]
[1] Jaegi Lee. “Ultraconcentrated Sodium Bis(fluorosulfonyl)imide-Based Electrolytes for High-Performance Sodium Metal Batteries.” ACS Applied Materials & Interfaces 9 4 (2017): 3723–3732.
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