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934038

Sigma-Aldrich

Hexafluoroisopropyl methyl ether

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≥99%, anhydrous, battery grade

Synonyme(s) :

1,1,1,3,3,3-Hexafluoro-2-methoxypropane, HFME, HFPM, Isoindoklon

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About This Item

Formule empirique (notation de Hill):
C4H4F6O
Numéro CAS:
Poids moléculaire :
182.06
Numéro de classification (Commission des enzymes):
603-501-8
Numéro MDL:
Code UNSPSC :
12352100
ID de substance PubChem :
Nomenclature NACRES :
NA.21

Qualité

battery grade

Niveau de qualité

Description

Application: Battery manufacturing

Pureté

≥99%

Forme

liquid

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Impuretés

≤250 ppm acid (HF)
≤500 ppm H2O

Point d'ébullition

50 °C

Densité

1.39 g/mL

Application(s)

battery manufacturing

Autre catégorie plus écologique

Description générale

Hexafluoroisopropyl methyl ether (HFPM) is a fluorinated ether, also called isoflurothyl in biomedical applications as a general anesthetic. HFPM is a colorless, non-flammable liquid used in the battery industry as a high-performing cosolvent and additive for electrolyte formulations in lithium-ion batteries. HFPM has a low viscosity and a low boiling point and is miscible with many polar organic solvents, which lend it use as a diluent for low-temperature applications. Our battery-grade HFPM is an important component in the production of safe and efficient lithium-ion batteries for use in a wide range of applications.
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Application

Battery-grade hexafluoroisopropyl methyl ether (HFPM) is a versatile and highly effective cosolvent and electrolyte additive for use in lithium-ion batteries (LiBs) and sodium-ion batteries (SIBs). With its low viscosity, low boiling point, and compatibility with a variety of battery solvents, HFPM is an ideal diluent for low-temperature applications and can help to improve the wettability of polypropylene separators. Additionally, HFPM′s nonflammability is a major benefit for battery safety. HFPM also has good compatibility with most electrode materials including for example, lithium metal, graphite, NMCs, and LMO. Studies have shown that in SIBs adding HFPM as an electrolyte additive can help to stabilize the Na electrode surface and form a new fluorine-containing organic layer, resulting in a more stable solid electrolyte interphase. Overall, battery-grade HFPM is a crucial component in the production of high-performing, reliable, and safe lithium-ion batteries for a wide range of applications, from consumer electronics to electric vehicles.

Code de la classe de stockage

10 - Combustible liquids

Classe de danger pour l'eau (WGK)

WGK 3


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Consulter la Bibliothèque de documents

5?V-Class Electrolytes Based on Fluorinated Solvents for Li-Ion Batteries with Excellent Cyclability
Xia, L., et al.
ChemElectroChem, 2, 1707? 1712-1707? 1712 (2015)
Regulated interfacial stability by coordinating ionic liquids with fluorinated solvent for high voltage and safety batteries
Yan, et al.
Journal of Power Sources, 491, 229603-229603 (2021)
Qiang Yi et al.
ACS applied materials & interfaces, 11(50), 46965-46972 (2019-11-20)
Sodium-metal batteries with conventional organic liquid electrolytes have disadvantages including dendrite deposition and safety concern. In this work, we report a low-flammable electrolyte (NaPF6-FRE) consisting of 1 M NaPF6 in 1,2-dimethoxyethane (DME), fluoroethylene carbonate (FEC), and 1,1,1,3,3,3-hexafluoroisopropylmethyl ether (HFPM) (2:1:2

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