933988

1,1,2,2-Tetrafluoroethyl 2,2,2-trifluoroethyl ether

≥99.5%, anhydrous, acid <=100 ppm, battery grade

• 别名: 1,1,2,2-tetrafluoro-1-(2,2,2-trifluoroethoxy)ethane, HFE-347, TFTFE
• 经验公式（希尔记法）: C₄H₃F₇O
• CAS号: 406-78-0
• 分子量: 200.05
• EC 号: 609-858-6
• MDL號碼: MFCD00236118
• 分類程式碼代碼: 12352100
• PubChem物質ID: 253661640
• NACRES: NA.21

属性

• 等級: battery grade
• 品質等級: 100
• 化驗: ≥99.5%
• 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 acid (HF); ≤250 ppm H₂O
• 非揮發性殘留物 (NVR): ≤10 ppm
• bp: 56 °C
• mp: -91 °C (lit.)
• 密度: 1.49 g/mL
• 應用: battery manufacturing
• 環保替代類別: Enabling

说明

一般說明

1,1,2,2-Tetrafluoroethyl 2,2,2-trifluoroethyl ether (TFTFE) is a fluorinated ether that finds extensive use as an electrolyte solvent and diluent in various battery technologies. TFTFE has a low viscosity, low freezing point (-94 °C lit.), low dielectric constant (~6.7), and high electrochemical stability, making it an ideal candidate for use in lithium-ion batteries, lithium-sulfur batteries, and other battery systems. TFTFE is miscible with many polar organic solvents, including carbonates typically used in battery electrolytes. With a minimum purity level of 99% and free from acid impurities, our TFTFE is a reliable and safe solution for critical 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

Battery-grade 1,1,2,2-tetrafluoroethyl 2,2,2-trifluoroethyl ether (TFTFE) is a versatile co-solvent and additive for various battery systems. In lithium-metal batteries, TFTFE helps to suppress dendrites without raising the interfacial impedance. It also supports the stable cycling of NMC and lithium metal phosphate cathodes by forming a highly fluorinated interphase, which inhibits oxidation and transition metal dissolution. Because of its stability and low viscosity, TFTFE is commonly added in localized high-concentration electrolytes (LHCE) as a diluent and flame-retardant. In lithium-sulfur batteries, TFTFE plays a key role as both a polysulfide-restraining solvent and a film-forming agent, addressing the polysulfide shuttle (PSS) effect and improving battery performance. Additionally, TFTFE plays a critical role in cell systems with solvate ionic liquids (SIL) as an ionic conduction-enhancing ingredient, particularly for high-rate cycle environments. Our high-purity, anhydrous TFTFE is an ideal battery-grade additive for advanced battery technology.

安全信息

• 象形圖: GHS07
• 訊號詞: Warning
• 危險聲明: H315,H319
• 防範說明: P264 - P280 - P302 + P352 - P305 + P351 + P338 - P332 + P313 - P337 + P313
• 危險分類: Eye Irrit. 2 - Skin Irrit. 2
• 儲存類別代碼: 10 - Combustible liquids
• 水污染物質分類（WGK）: WGK 3
• 閃點（°F）: Not applicable
• 閃點（°C）: Not applicable