TFTFE (1,1,2,2-Tetrafluoroethyl 2,2,2-trifluoroethyl ether, 99.5%) as Battery Electrolyte Additive, 25 g/bottle, CBEATFTFE
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TFTFE (1,1,2,2-Tetrafluoroethyl 2,2,2-trifluoroethyl ether, or HFE-347), is mainly used to enhance the safety and improve the interfacial stability of advanced battery chemistries, such as Lithium Metal Batteries (LMBs). TFTFE is characterized by having a high percentage of fluorine atoms (C–F bonds), which gives it its unique properties compared to conventional non-fluorinated ether or carbonate solvents, such as (1) Non-Flammability and Safety; (2) Stabilization of Lithium Metal Anodes (LMA).
| Part Number |
CBEATFTFE (C-BEA-TFTFE) |
| CAS |
406-78-0 |
| Chemical Formula |
C4H3F7O  |
| Appearance |
Colorless Liquid |
| Purity |
>99.5% |
| Molecular Weight | 200.05 g/mol |
| Density | 1.49 g/mL |
| Boling Point | 56 °C |
| Package Size | 25 g/bottle |
Notes: Please store the TFTFE solution in the glovebox due to its sensitivity to humidity and oxygen
References:
- H. Lu, et al. Application of Partially Fluorinated Ether for Improving Performance of Lithium/Sulfur Batteries, J. Electrochem. Soc., 2015, 162, A1460.
- W. Yao, et al. Inner–Outer Sheath Synergistic Shielding of Polysulfides in Asymmetric Solvent-Based Electrolytes for Stable Sodium–Sulfur Batteries, J. Am. Chem. Soc., 2025, 147, 14, 12061–12074.