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Merck

933961

Sigma-Aldrich

1,1,2,2-Tetrafluoroethyl 2,2,3,3-tetrafluoropropylether

greener alternative

≥99%, <=10 ppm acid, battery grade

Synonym(e):

1,1,2,2-Tetrafluoro-3-(1,1,2,2-tetrafluoroethoxy)propane, HFE-458, TTE

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About This Item

Empirische Formel (Hill-System):
C5H4F8O
CAS-Nummer:
Molekulargewicht:
232.07
MDL-Nummer:
UNSPSC-Code:
12352100
PubChem Substanz-ID:
NACRES:
NA.21

Qualität

battery grade

Qualitätsniveau

Beschreibung

Application: Battery manufacturing

Assay

≥99%

Form

liquid

Grünere Alternativprodukt-Eigenschaften

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sustainability

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Verunreinigungen

≤10 ppm Acid
≤100 ppm Non-volatile residue
≤750 ppm H2O

bp

92 °C

Dichte

1.54 g/mL

Anwendung(en)

battery manufacturing

Grünere Alternativprodukt-Kategorie

Allgemeine Beschreibung

Our 1,1,2,2-tetrafluoroethyl 2,2,3,3-tetrafluoropropylether (TTE) is a high-purity, battery-grade fluorinated ether commonly used as an electrolyte solvent in lithium-ion batteries (LIBs). It is a clear liquid with a boiling point of 92 °C that is miscible with many polar organic solvents, including carbonates typically used in battery electrolytes. Our TTE is produced to meet the high standards of battery-grade purity, ensuring a minimum purity level of 99%, and is carefully purified to become anhydrous and acid-free, making it a reliable choice for battery applications.
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Anwendung

1,1,2,2-Tetrafluoroethyl 2,2,3,3-tetrafluoropropylether (TTE) is a highly versatile fluorinated ether that finds its use as a co-solvent and additive in a range of battery systems, including lithium-sulfur batteries (LSBs) and lithium-ion batteries (LiBs). In LSBs, TTE plays a crucial role in reducing the solubility of intermediate lithium polysulfides, thereby preventing the polysulfide shuttle (PSS) effect and improving battery performance. Recent research suggests that TTE can also lead to the formation of a compact and uniform surface layer on the lithium anode when used as an additive, which improves the efficiency and stability of Li-S batteries. In LiBs, TTE acts as a cosolvent, reducing the viscosity of the electrolyte and enabling the use of lower concentrations of lithium salt without compromising ionic conductivity. Additionally, TTE has been shown to help form a stable, conductive solid electrolyte interphase (SEI) on both graphite anodes and NMC cathodes, thereby improving the overall electrochemical performance of the battery.

Piktogramme

Flame

Signalwort

Warning

H-Sätze

Gefahreneinstufungen

Flam. Liq. 3

Lagerklassenschlüssel

3 - Flammable liquids

WGK

WGK 3

Flammpunkt (°F)

80.6 °F - closed cup

Flammpunkt (°C)

27 °C - closed cup


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Fluoro-Ether as a Bifunctional Interphase Electrolyte Additive with Graphite/LiNi0.5Co0.2Mn0.3O2 Full Cell
[3]Heng, et al.
ACS Applied Energy Materials, 2, 6404-6416 (2019)

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