{"product_id":"cbesatfeo","title":"TFEO (Tris(2,2,2-trifluoroethyl) Orthoformate, \u003e99.0%) as Battery Electrolyte Co-Solvent and Additive, 5-20 g\/bottle, CBESATFEO","description":"\u003cp\u003eTris(2,2,2-trifluoroethyl) orthoformate (commonly designated as TFEO) is a highly fluorinated specialty orthoester engineered for advanced energy storage systems. Featuring a central orthoformate carbon bonded to three electron-withdrawing 2,2,2-trifluoroethoxy groups, TFEO functions as an elite non-coordinating diluent and interphase-directing co-solvent for high-voltage lithium-metal and lithium-ion batteries.\u003c\/p\u003e\n\u003cp\u003eIts main functional roles in electrolyte engineering are: (1) \u003cstrong\u003eLocalized High-Concentration Electrolyte (LHCE) Diluent\u003c\/strong\u003e: TFEO acts as an inert structural diluent that lowers bulk viscosity and decreases electrolyte costs while keeping the inner solvation sheath intact, preserving the high ionic transference numbers of concentrated salt clusters. (2) \u003cstrong\u003eRobust Multi-Facial Interphase (SEI\/CEI) Construction\u003c\/strong\u003e: Due to its tailored reduction and oxidation behavior, TFEO preferentially decomposes to assist in building a dense, inorganic-rich Solid Electrolyte Interphase (SEI) on alkali metal anodes and a thick, LiF-rich Cathode Electrolyte Interphase (CEI) on high-voltage transition metal oxides. (3) \u003cstrong\u003eSuppression of Cation Mixing and Transition Metal Dissolution\u003c\/strong\u003e: The stable CEI film generated by TFEO effectively mitigates surface phase transitions (such as layered-to-rock-salt structural degradation) and suppresses transition-metal dissolution during prolonged high-voltage cycling.   \u003c\/p\u003e\n\u003cp\u003eIts main electrochemical applications are: (1) \u003cstrong\u003eHigh-Voltage Lithium-Metal Batteries (LMBs)\u003c\/strong\u003e: Paired with nickel-rich layered oxide cathodes (e.g., LiNi0.8Mn0.1Co0.1O2 or NMC811) operating above 4.3 V, enabling extended cycle life under practical lean-electrolyte conditions. (2) \u003cstrong\u003eAnode-Free and High-Energy Configurations\u003c\/strong\u003e: Deployed to suppress dendrite formation and lower parasitic side reactions on reactive lithium metal or high-surface-area current collectors..\u003c\/p\u003e\n\u003ctable width=\"100%\" style=\"width: 100%; height: 313.325px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 35.6px;\"\u003e\n\u003ctd style=\"width: 33.7019%; height: 35.6px;\"\u003e\u003cem\u003ePart Number\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 65.9772%; height: 35.6px;\"\u003e\n\u003cp\u003e\u003cspan\u003eCBESATFEO (C-BESA-TFEO)\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: 33.7019%; height: 35.6px;\"\u003e\u003cem\u003eCAS\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 65.9772%; height: 35.6px;\"\u003e\n\u003cp\u003e\u003cspan\u003e58244-27-2\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 131.725px;\"\u003e\n\u003ctd style=\"width: 33.7019%; height: 131.725px;\"\u003e\u003cem\u003eChemical Formula\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 65.9772%; height: 131.725px;\"\u003e\n\u003cp\u003e\u003cspan\u003eC\u003c\/span\u003e\u003csub\u003e7\u003c\/sub\u003e\u003cspan\u003eH\u003c\/span\u003e\u003csub\u003e7\u003c\/sub\u003e\u003cspan\u003eF\u003c\/span\u003e\u003csub\u003e9\u003c\/sub\u003e\u003cspan\u003eO\u003c\/span\u003e\u003csub\u003e3\u003c\/sub\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0774\/6591\/1526\/files\/CBESATFEO_Structure_100x100.jpg?v=1789880350\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.6px;\"\u003e\n\u003ctd style=\"width: 33.7019%; height: 35.6px;\"\u003e\u003cem\u003eAppearance\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 65.9772%; 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: 35.6px;\"\u003e\n\u003ctd style=\"width: 33.7019%; height: 35.6px;\"\u003e\n\u003cstrong\u003e \u003c\/strong\u003e\u003cem\u003ePurity\u003c\/em\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 65.9772%; height: 35.6px;\"\u003e\n\u003cp\u003e\u003cspan\u003e\u0026gt;99.0% (Battery Grade)\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: 33.7019%; height: 19.6px;\"\u003e\u003cem\u003eMolecular Weight\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 65.9772%; height: 19.6px;\"\u003e\u003cspan\u003e310.12 g\/mol\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 33.7019%; height: 19.6px;\"\u003e\u003cem\u003ePackage Size\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 65.9772%; height: 19.6px;\"\u003e\u003cspan\u003e5 g, 10 g, and 20 g\/bottle\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eNotes\u003c\/strong\u003e: Please store the TFEO 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\/S2405829724000059\"\u003eS. Yang, et al. Unveiling decaying mechanism of non-flammable all-fluorinated carbonate electrolytes in lithium metal batteries with 4.6-V LiCoO2 cathodes at elevated temperatures, Energy Storage Materials, 2024, 65, 103177\u003c\/a\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003ca href=\"https:\/\/www.nature.com\/articles\/s41560-019-0464-5\"\u003eX. Cao, et al. PMonolithic solid–electrolyte interphases formed in fluorinated orthoformate-based electrolytes minimize Li depletion and pulverization, Nature Energy, 2019, 4, 796–805\u003c\/a\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"CHEMFISH","offers":[{"title":"5 g","offer_id":48412261646566,"sku":"CBESATFEO5","price":199.0,"currency_code":"USD","in_stock":true},{"title":"10 g","offer_id":48412261679334,"sku":"CBESATFEO10","price":369.0,"currency_code":"USD","in_stock":true},{"title":"20 g","offer_id":48412261712102,"sku":"CBESATFEO20","price":699.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/6591\/1526\/files\/CBESATFEO_main.jpg?v=1789880350","url":"https:\/\/echemsupplies.com\/products\/cbesatfeo","provider":"EChem Supplies","version":"1.0","type":"link"}