935611

碳酸乙烯亚乙酯

≥99.9%, anhydrous, battery grade

• 同義詞: 4-乙烯基-1,3-二氧戊环-2-酮, VEC
• 經驗公式（希爾表示法）: C₅H₆O₃
• CAS號碼: 4427-96-7
• 分子量：: 114.10
• MDL號碼: MFCD00143315
• 分類程式碼代碼: 12352005

屬性

• 等級: battery grade
• 品質等級: 100
• 描述: Application: Battery manufacturing
• 化驗: ≥99.9%
• 形狀: liquid
• 環保替代產品特色: Design for Energy Efficiency; Learn more about the Principles of Green Chemistry.
• sustainability: Greener Alternative Product
• 雜質: ≤100 ppm H₂O
• 折射率: n20/D 1.45 (lit.)
• bp: 237 °C/733 mmHg (lit.)
• 密度: 1.188 g/mL at 25 °C (lit.)
• 應用: battery manufacturing
• 環保替代類別: Enabling
• 儲存溫度: 2-8°C
• SMILES 字串: C=CC1COC(=O)O1
• InChI: 1S/C5H6O3/c1-2-4-3-7-5(6)8-4/h2,4H,1,3H2
• InChI 密鑰: BJWMSGRKJIOCNR-UHFFFAOYSA-N

描述

一般說明

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.

We are committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Greener Chemistry. This product has been enhanced for energy efficiency. Click here for more information.

應用

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

安全資訊

• 象形圖: GHS06
• 訊號詞: Danger
• 危險聲明: H301
• 防範說明: P264 - P270 - P301 + P310 - P405 - P501
• 危險分類: Acute Tox. 3 Oral
• 儲存類別代碼: 6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
• 水污染物質分類（WGK）: WGK 1
• 閃點（°F）: 206.4 °F - closed cup
• 閃點（°C）: 96.9 °C - closed cup