{"product_id":"cbestte","title":"TTE (1,1,2,2-Tetrafluoroethyl 2,2,3,3-tetrafluoropropylether, \u003e99.95%) as Battery Electrolyte Co-Solvent, 50-200 g\/bottle, CBESTTE","description":"\u003cp\u003eTTE (1,1,2,2-Tetrafluoroethyl 2,2,3,3-tetrafluoropropylether, or HFE-458), is a symmetrical, hydrofluoroether (HFE) used as a non-solvating fluorinated diluent \/ co-solvent in localized high-concentration electrolytes (LHCEs) and high-voltage, wide-temperature battery formulations. Its highly fluorinated aliphatic structure gives it extremely low donor power, high oxidation resistance, low viscosity, and high non-flammability.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNon-Solvating Diluent in LHCE Systems\u003c\/strong\u003e: Similar to BTFE, TTE serves as a classic diluent in Localized High-Concentration Electrolyte (LHCE) designs: (1) \u003cstrong\u003ePreservation of Solvation Structures\u003c\/strong\u003e: Because of the strong electron-withdrawing fluorinated tails on both sides of the ether bridge, TTE exhibits negligible donor ability (low Gutmann Donor Number). It does not dissolve lithium salts directly and stays outside the primary Li+ solvation sheath. (2) \u003cstrong\u003eViscosity \u0026amp; Conductivity Optimization\u003c\/strong\u003e: Adding TTE to an ultra-high-concentration salt-in-solvent mixture (e.g., 4M LiFSI in DME or trimethyl phosphate) lowers bulk viscosity and improves wetting and wettability of thick porous electrodes without disrupting the beneficial Contact Ion Pair (CIP) and Aggregate (AGG) solvation clusters.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHighly Inorganic LiF-Rich Interphase Construction\u003c\/strong\u003e: Under reductive potentials at the lithium-metal or graphite anode, TTE undergoes sacrificial decomposition to form an inorganic-rich Solid Electrolyte Interphase (SEI) dominated by lithium fluoride (LiF). LiF provides high interfacial energy against metallic lithium, preventing dendrite propagation and suppressing continuous electrolyte consumption during extended cycling. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWide Electrochemical Stability \u0026amp; Flame Retardancy\u003c\/strong\u003e: (1) \u003cstrong\u003eAnodic Oxidation Limit\u003c\/strong\u003e: TTE exhibits a low Highest Occupied Molecular Orbital (HOMO) energy level, expanding the oxidative stability window of ether-based electrolytes beyond 4.5-5.0 V vs. Li\/Li+. This allows high-voltage cathodes (such as NMC811, NMC955, or LCO) to operate stably in ether-rich environments. (2) \u003cstrong\u003eSafety\u003c\/strong\u003e: TTE possesses a high flash point and strong flame-retardant characteristics, significantly reducing thermal runaway risks.\u003c\/p\u003e\n\u003ctable style=\"width: 100%; height: 350.2px;\" width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 35.6px;\"\u003e\n\u003ctd style=\"width: 33.6331%; height: 35.6px;\"\u003e\u003cem\u003ePart Number\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0072%; height: 35.6px;\"\u003e\n\u003cp\u003e\u003cspan\u003eCBESTTE (C-BES-TTE)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.6px;\"\u003e\n\u003ctd style=\"width: 33.6331%; height: 35.6px;\"\u003e\u003cem\u003eCAS\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0072%; height: 35.6px;\"\u003e\n\u003cp\u003e\u003cspan\u003e16627-68-2\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 155px;\"\u003e\n\u003ctd style=\"width: 33.6331%; height: 155px;\"\u003e\u003cem\u003eChemical Formula\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0072%; height: 155px;\"\u003e\n\u003cp\u003eC5H4F8O\u003c\/p\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\u003cimg style=\"margin-bottom: 16px; float: none;\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0774\/6591\/1526\/files\/TTE_molecular_Structure_160x160.jpg?v=1764439935\"\u003e\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.6px;\"\u003e\n\u003ctd style=\"width: 33.6331%; height: 35.6px;\"\u003e\u003cem\u003eAppearance\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0072%; height: 35.6px;\"\u003e\n\u003cp\u003e\u003cspan\u003eColorless Liquid \u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 10px;\"\u003e\n\u003ctd style=\"width: 33.6331%; height: 10px;\"\u003e\n\u003cstrong\u003e \u003c\/strong\u003e\u003cem\u003ePurity\u003c\/em\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 66.0072%; height: 10px;\"\u003e\n\u003cp\u003e\u003cspan\u003e\u0026gt;99.95%\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 33.6331%; height: 19.6px;\"\u003e\u003cem\u003eMolecular Weight\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0072%; height: 19.6px;\"\u003e\u003cspan\u003e232.07 g\/mol\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 33.6331%; height: 19.6px;\"\u003e\u003cem\u003eDensity\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0072%; height: 19.6px;\"\u003e\u003cspan\u003e1.54 g\/mL\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 33.6331%; height: 19.6px;\"\u003e\u003cem\u003eBoling Point\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0072%; height: 19.6px;\"\u003e\u003cspan\u003e92 °C\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 33.6331%; height: 19.6px;\"\u003e\u003cem\u003ePackage Size\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0072%; height: 19.6px;\"\u003e\u003cspan\u003e50 g, 100 g, and 200 g\/bottle\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eNotes\u003c\/strong\u003e: Please store the TTE solvent in the glovebox due to its sensitivity to humidity and oxygen\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eReferences\u003c\/strong\u003e: \u003c\/span\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\u003cspan\u003e\u003ca href=\"https:\/\/www.sciencedirect.com\/science\/article\/abs\/pii\/S0378775324010474\"\u003eD. Ouyang, et al. An all-fluorinated electrolyte with 1,1,2,2-tetrafluoroethyl-2,2,3,3-tetrafluoropropylether as co-solvent for lithium-ion cells with advanced electrochemical and safety properties at high voltage, J. Power Sources, 2024, 615, 235095\u003c\/a\u003e.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003ca href=\"https:\/\/www.sciencedirect.com\/science\/article\/abs\/pii\/S1385894725104117\"\u003eD. Ouyang, et al. A 1,1,2,3,3,3-hexafluoropropyl 2,2,2-trifluoroethyl ether diluted all-fluorinated electrolyte for outstanding high-voltage lithium-ion cells, Chem. Engineering J., 2025, 524, 169568\u003c\/a\u003e. \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"DDDC","offers":[{"title":"50 g","offer_id":48117583708390,"sku":"CBESTTE50","price":129.0,"currency_code":"USD","in_stock":true},{"title":"100 g","offer_id":48117583741158,"sku":"CBESTTE100","price":219.0,"currency_code":"USD","in_stock":true},{"title":"200 g","offer_id":48117583773926,"sku":"CBESTTE200","price":399.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/6591\/1526\/files\/CBESTTE_main.jpg?v=1785858359","url":"https:\/\/echemsupplies.com\/products\/cbestte","provider":"EChem Supplies","version":"1.0","type":"link"}