{"product_id":"cbesaf2dee","title":"F2DEE {1,2-Bis(2-fluoroethoxy)ethane, \u003e99.0%} as Battery Electrolyte Co-Solvent and Additive, 10-50 g\/bottle, CBESAF2DEE","description":"\u003cp\u003eF2DEE (1,2-bis(2-fluoroethoxy)ethane or a structurally analogous fluorinated diethylene glycol diether) is a lightly fluorinated linear ether engineered as an advanced co-solvent, solvation-sheath modifier, and interphase-directing additive for next-generation lithium-metal and lithium-sulfur batteries. By introducing a single fluorine atom onto each terminal ethyl group of a diethylene glycol backbone, F2DEE provides high solvating capability while moderately enhancing electrochemical and interfacial stability compared to conventional unfluorinated glymes.\u003c\/p\u003e\n\u003cp\u003eThe main functional roles of the F2DEE are: (1) \u003cstrong\u003eSolvation Sheath \u0026amp; Fast Ion Transport\u003c\/strong\u003e: F2DEE coordinates smoothly with lithium ions (Li+), facilitating rapid desolvation kinetics and high ionic mobility across broad thermal ranges, which benefits low-temperature and high-rate performance. (2) \u003cstrong\u003eControlled Interphase (SEI) Passivation\u003c\/strong\u003e: Due to its tailored reduction potential, F2DEE participates in early-stage electrochemical reduction on reactive metal surfaces. This contributes to the formation of a flexible, hybrid inorganic-organic Solid Electrolyte Interphase (SEI) containing dispersed lithium fluoride (LiF) domains that help suppress dendrite propagation. (3) \u003cstrong\u003ePolysulfide Compatibility (Li-S Systems)\u003c\/strong\u003e: Its balanced polarity provides favorable wetting and moderate dissolution characteristics toward lithium polysulfide intermediates, supporting active material utilization in sulfur cathodes while helping mitigate the shuttle effect when paired with secondary co-solvents.\u003c\/p\u003e\n\u003cp\u003eIts primary electrochemical domains are: (1) \u003cstrong\u003eLow-Temperature Lithium-Metal Batteries\u003c\/strong\u003e: Integrated into liquid electrolyte formulations to ensure high ionic conductivity and stable stripping\/plating behavior in cold-climate or high-rate operational environments. (2) \u003cstrong\u003eLithium-Sulfur (Li-S) Chemistries\u003c\/strong\u003e: Utilized as a functional co-solvent to optimize separator wettability and maintain active reaction kinetics in sulfur-based energy storage systems.\u003c\/p\u003e\n\u003ctable width=\"100%\" style=\"width: 100%; height: 255.6px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 35.6px;\"\u003e\n\u003ctd style=\"width: 33.8802%; height: 35.6px;\"\u003e\u003cem\u003ePart Number\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 65.7989%; height: 35.6px;\"\u003e\n\u003cp\u003e\u003cspan\u003eCBESAF2DEE (C-BESA-F2DEE)\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: 33.8802%; height: 35.6px;\"\u003e\u003cem\u003eCAS\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 65.7989%; height: 35.6px;\"\u003e\n\u003cp\u003e\u003cspan\u003e63938-33-0\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 74px;\"\u003e\n\u003ctd style=\"width: 33.8802%; height: 74px;\"\u003e\u003cem\u003eChemical Formula\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 65.7989%; height: 74px;\"\u003e\n\u003cp\u003e\u003cspan\u003eC\u003c\/span\u003e\u003csub\u003e6\u003c\/sub\u003e\u003cspan\u003eH\u003c\/span\u003e\u003csub\u003e12\u003c\/sub\u003e\u003cspan\u003eF\u003c\/span\u003e\u003csub\u003e2\u003c\/sub\u003e\u003cspan\u003eO\u003c\/span\u003e\u003csub\u003e2\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\/CBESAF2DEE_Structure_100x100.jpg?v=1789940591\" 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: 33.8802%; height: 35.6px;\"\u003e\u003cem\u003eAppearance\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 65.7989%; 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: 33.8802%; height: 35.6px;\"\u003e\n\u003cstrong\u003e \u003c\/strong\u003e\u003cem\u003ePurity\u003c\/em\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 65.7989%; height: 35.6px;\"\u003e\n\u003cp\u003e\u003cspan\u003e\u0026gt;99.0%\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: 33.8802%; height: 19.6px;\"\u003e\u003cem\u003eMolecular Weight\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 65.7989%; height: 19.6px;\"\u003e\u003cspan\u003e154.16 g\/mol\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 33.8802%; height: 19.6px;\"\u003e\u003cem\u003ePackage Size\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 65.7989%; height: 19.6px;\"\u003e\u003cspan\u003e10 g, 25 g, and 50 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 F2DEE liquid in the dry place (glovebox is the best).\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:\/\/pubs.acs.org\/jaaucr\/article\/3\/3\/953\/1270144\/Solvent-versus-Anion-Chemistry-Unveiling-the\"\u003eD. Ruan, et al. Solvent versus Anion Chemistry: Unveiling the Structure-Dependent Reactivity in Tailoring Electrochemical Interphases for Lithium-Metal Batteries, JACS Au (2023) 3 (3): 953–963.\u003c\/a\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003ca href=\"https:\/\/www.pnas.org\/doi\/abs\/10.1073\/pnas.2418623122\"\u003eE. Zhang, et al. Monofluorinated acetal electrolyte for high-performance lithium metal batteries, 2025, DOI: 10.1073\/pnas.2418623122\u003c\/a\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"CHEMFISH","offers":[{"title":"10 g","offer_id":48415184519398,"sku":"CBESAF2DEE10","price":119.0,"currency_code":"USD","in_stock":true},{"title":"25 g","offer_id":48415184552166,"sku":"CBESAF2DEE25","price":269.0,"currency_code":"USD","in_stock":true},{"title":"50 g","offer_id":48415184584934,"sku":"CBESAF2DEE50","price":499.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/6591\/1526\/files\/CBESAF2DEE_main.jpg?v=1789940591","url":"https:\/\/echemsupplies.com\/products\/cbesaf2dee","provider":"EChem Supplies","version":"1.0","type":"link"}