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934011

Sigma-Aldrich

Bis(2,2,2-trifluoroethyl) carbonate

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≥99%, anhydrous, battery grade

Synonyme(s) :

BTC, BTFC, Bistrifluoroethyl carbonate, Carbonic Acid Bis(2,2,2-trifluoroethyl) Ester, Carbonic Acid;2,2,2-trifluoroethanol, DFDEC, TFEC

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About This Item

Formule empirique (notation de Hill):
C5H4F6O3
Numéro CAS:
Poids moléculaire :
226.07
Numéro de classification (Commission des enzymes):
807-996-3
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

≤100 ppm H2O
≤250 ppm HF

Point d'ébullition

118 °C

Densité

1.51 g/mL

Application(s)

battery manufacturing

Autre catégorie plus écologique

Description générale

Bis(2,2,2-trifluoroethyl) carbonate (DFDEC) is a colorless, odorless, and low viscosity liquid widely used in the battery industry as a high-performance electrolyte additive. Its excellent solubility and compatibility with other electrolyte components combined with its high thermal and electrochemical stability ensure outstanding performance in high-temperature and high-voltage applications. Our DFDEC is a highly pure and anhydrous chemical compound manufactured with a minimum purity of 99%.
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Application

Bis(2,2,2-trifluoroethyl) carbonate (DFDEC) is a highly effective electrolyte additive that is widely used in the battery industry to enhance the performance and stability of lithium-ion batteries. Its remarkable thermal and electrochemical stability make it an excellent choice for use in high-temperature and high-voltage applications. Recent studies have also highlighted other benefits of DFDEC in battery applications. For instance, it has been found that DFDEC can improve the cycle performance of lithium metal cells by forming a LiF-rich solid electrolyte interphase (SEI).[1,2] Additionally, flammability tests have shown that electrolytes containing over 60% v/v of DFDEC do not catch fire, demonstrating its potential as a flame-retardant.[3] These findings highlight the versatility and importance of DFDEC in the development of safe and high-performance battery technologies.

Produit(s) apparenté(s)

Pictogrammes

FlameExclamation mark

Mention d'avertissement

Warning

Mentions de danger

Classification des risques

Eye Irrit. 2 - Flam. Liq. 3 - Skin Irrit. 2

Code de la classe de stockage

3 - Flammable liquids

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

84.2 °F

Point d'éclair (°C)

29 °C


Certificats d'analyse (COA)

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Consulter la Bibliothèque de documents

Non-flammable liquid electrolytes for safe batteries
Gond, R., et al.
Royal Society of Chemistry, 8, 2913-2928 (2021)
Comparative study of fluorination effect on the linear carbonate molecule for reversible cycling of lithium metal batteries
Lee, et al.
Journal of Electroanalytical Chemistry, 905, 115900-115900 (2022)
Stabilizing the Solid Electrolyte Interphase Layer and Cycling Performance of Silicon-Graphite Battery Anode by Using a Binary Additive of Fluorinated Carbonates
Jo, Hyuntak, et al.
The Journal of Physical Chemistry C, 120, 22466-22475 (2016)

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