935611

4-Vinyl-1,3-dioxolan-2-one

≥99.9%, anhydrous, battery grade

• Synonym(s): VEC, Vinyl ethylene carbonate
• Empirical Formula (Hill Notation): C₅H₆O₃
• CAS Number: 4427-96-7
• Molecular Weight: 114.10
• MDL number: MFCD00143315
• UNSPSC Code: 12352005

Properties

• grade: battery grade
• Quality Level: 100
• description: Application: Battery manufacturing
• Assay: ≥99.9%
• form: liquid
• greener alternative product characteristics: Design for Energy Efficiency; Learn more about the Principles of Green Chemistry.
• impurities: ≤100 ppm H₂O
• refractive index: n20/D 1.45 (lit.)
• bp: 237 °C/733 mmHg (lit.)
• density: 1.188 g/mL at 25 °C (lit.)
• application(s): battery manufacturing
• greener alternative category: Enabling
• storage temp.: 2-8°C
• SMILES string: C=CC1COC(=O)O1
• InChI: 1S/C5H6O3/c1-2-4-3-7-5(6)8-4/h2,4H,1,3H2
• InChI key: BJWMSGRKJIOCNR-UHFFFAOYSA-N

Description

General description

4-Vinyl-1,3-dioxolan-2-one (VEC) is a cyclic organic compound with the molecular formula C₅H₆O₃. It is a clear, colorless liquid with a high boiling point and is miscible with carbonate and ether solvents used in lithium-ion batteries (LIBs). Our battery grade VEC is differentiated by its high purity and low trace moisture to help ensure consistent performance in battery applications.

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Application

Anhydrous, battery grade 4-vinyl-1,3-dioxolan-2-one (VEC) is commonly used as an electrolyte additive in lithium-ion batteries (LIBs) to improve battery performance. VEC helps to form a stable film on the anode surface called a solid electrolyte interface (SEI). The SEI acts as a barrier that prevents further reaction between the electrolyte and the anode and thereby enhances the cyclic stability of the battery. For example, the addition of 2 wt.% VEC to the electrolyte formulation enhanced cycling performance in experiments both with Li metal anodes and graphite anodes In the electrolyte formulation, often VEC is added to be 2-10 wt.% of the solvent blend; however, scientists have even used VEC as the sole solvent in a lithium-metal battery with great results including long cycle life over 1000 cycles and reduced flammability

Safety Information

• Pictograms: GHS06
• Signal Word: Danger
• Hazard Statements: H301
• Precautionary Statements: P264 - P270 - P301 + P310 - P405 - P501
• Hazard Classifications: Acute Tox. 3 Oral
• Storage Class Code: 6.1C - Combustible, acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
• WGK: WGK 1
• Flash Point(F): 206.4 °F - closed cup
• Flash Point(C): 96.9 °C - closed cup