{"product_id":"cbeafse","title":"FSE {1,2-Bis(difluoromethylsilyl)ethane, \u003e99.0%} as Battery Electrolyte Additive, 10-50 g\/bottle, CBEAFSE","description":"\u003cp\u003eFSE (1,2-Bis(difluoromethylsilyl)ethane or 1,2-Bis(methyldifluorosilyl)ethane, C4H10F4Si2) is an advanced, highly specialized organosilane compound evaluated as a trace-level film-forming electrolyte additive (typically around 0.5 wt%) for high-energy lithium-ion batteries—particularly those employing high-voltage or high-nickel formulations. \u003c\/p\u003e\n\u003cp\u003eThe key functional roles of FSE as battery electrolyte additive are shown below:\u003cstrong\u003e \u003c\/strong\u003e(1) \u003cstrong\u003eIn-Situ Ultra-Thin SEI \/ CEI Formation\u003c\/strong\u003e: FSE is designed to undergo preferential electrochemical reduction and oxidation ahead of bulk organic carbonate solvents. It decomposes to construct a remarkably thin, highly stable passivating interphase on both electrode surfaces. This protective layer effectively blocks continuous electrolyte decomposition while maintaining fast Li+ desolvation and transport kinetics. (2) \u003cstrong\u003eSilicon-Fluorine Synergistic Passivation\u003c\/strong\u003e: The dual difluoromethylsilyl centers (Si-CHF2) break down to incorporate both inorganic silicon-oxygen\/silicate species and fluorine-rich components (such as LiF) into the interfacial film. This hybrid inorganic-organic architecture provides mechanical flexibility combined with high interfacial stability, suppressing impedance buildup during extended cycling. (3) \u003cstrong\u003eHigh-Voltage and Elevated-Temperature Suppression\u003c\/strong\u003e: Particularly useful in high-potential environments (e.g., cells operating at ~ 4.3 V or under high-temperature stress like 60°C, FSE mitigates transition metal dissolution and prevents structural cracking or gas evolution at the electrode interfaces.\u003c\/p\u003e\n\u003ctable style=\"width: 100%; height: 312.325px;\" 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\u003eCBEAFSE (C-BEA-FSE)\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\u003e170381-99-4\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 130.725px;\"\u003e\n\u003ctd style=\"width: 33.6331%; height: 130.725px;\"\u003e\u003cem\u003eChemical Formula\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0072%; height: 130.725px;\"\u003e\n\u003cp\u003e\u003cspan\u003eC\u003c\/span\u003e\u003csub\u003e4\u003c\/sub\u003e\u003cspan\u003eH\u003c\/span\u003e\u003csub\u003e10\u003c\/sub\u003e\u003cspan\u003eF\u003c\/span\u003e\u003csub\u003e4\u003c\/sub\u003e\u003cspan\u003eSi\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\/CBEAFSE_Structure_100x100.jpg?v=1791345963\" 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: 33.6331%; 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: 35.6px;\"\u003e\n\u003ctd style=\"width: 33.6331%; height: 35.6px;\"\u003e\n\u003cstrong\u003e \u003c\/strong\u003e\u003cem\u003ePurity\u003c\/em\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 66.0072%; 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: 33.6331%; height: 19.6px;\"\u003e\u003cem\u003eMolecular Weight\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0072%; height: 19.6px;\"\u003e\u003cspan\u003e190.29 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\u003ePackage Size\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0072%; 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 try to store the FSE liquid in a dry place (glovebox or dryroom is preferred)\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\/S0013468615002790\"\u003eK. Yamagiwa, et al. Improved High-Temperature Performance and Surface Chemistry of Graphite\/LiMn2O4 Li-Ion Cells by Fluorosilane-Based Electrolyte Additive, Electrochimica Acta, 2015, 160, 347-356\u003c\/a\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003ca href=\"https:\/\/link.springer.com\/article\/10.1007\/s11581-022-04814-x\"\u003eX. Luo, et al. Aminoalkyldisiloxane compound as efficient high-temperature electrolyte additive for LiMn2O4\/graphite batteries, Ionics, 2023, 29, 87–96\u003c\/a\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"CHEMFISH","offers":[{"title":"10 g","offer_id":67639647338726,"sku":"CBEAFSE10","price":259.0,"currency_code":"USD","in_stock":true},{"title":"25 g","offer_id":67639647371494,"sku":"CBEAFSE25","price":599.0,"currency_code":"USD","in_stock":true},{"title":"50 g","offer_id":67639893688550,"sku":"CBEAFSE50","price":1099.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/6591\/1526\/files\/CBEAFSE_main.jpg?v=1791345964","url":"https:\/\/echemsupplies.com\/products\/cbeafse","provider":"EChem Supplies","version":"1.0","type":"link"}