{"product_id":"cbeatfmp","title":"TFMP {Bis(2,2,2-trifluoroethyl) Methylphosphonate, TFEMP, \u003e99.0%} as Flame-Retardant Battery Electrolyte Additive, 5-25 g\/bottle, CBEATFMP","description":"\u003cp\u003eBis(2,2,2-trifluoroethyl) methylphosphonate (frequently designated as TFMP or TFEMP) is a specialized organophosphonate compound engineered specifically as a high-efficiency flame-retardant additive and interfacial modifier for advanced lithium-ion and lithium-metal batteries. By pairing a central phosphorus atom bearing a direct carbon-phosphorus (P-CH3) methyl linkage with two strongly electron-withdrawing 2,2,2-trifluoroethyl ester groups, TFMP effectively bridges thermal safety enhancement with high-voltage electrochemical stability.\u003c\/p\u003e\n\u003cp\u003eIts functional roles in electrolyte engineering are: (1) \u003cstrong\u003eHigh-Efficiency Flame Retardancy \u0026amp; Radical Scavenging\u003c\/strong\u003e: TFMP acts as a powerful dual-phase flame retardant. Upon thermal abuse or ignition, it decomposes to release phosphorus-containing active radicals in the vapor phase that quench combustion chain reactions, alongside forming a dense, fire-retardant carbonaceous-inorganic char layer on the separator and electrode surfaces in the condensed phase. (2) \u003cstrong\u003eInterphase (SEI\/CEI) Passivation\u003c\/strong\u003e: Because of its tailored reduction and oxidation behavior, TFMP participates in early-stage electrochemical formation. It assists in building a robust, hybrid inorganic-organic protective film enriched with metal fluorides (LiF) and phosphate\/phosphonate decomposition species, which shields the anode and high-voltage cathode from continuous electrolyte consumption. (3) \u003cstrong\u003eCompatibility with High-Voltage Cathodes\u003c\/strong\u003e: The strongly electron-withdrawing -CF3 groups stabilize the phosphonate core against premature oxidative degradation, allowing TFMP to be utilized in high-energy cells operating above 4.3 V.\u003c\/p\u003e\n\u003ctable width=\"100%\" style=\"width: 100%; height: 340.8px;\"\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\u003eCBEATFMP (C-BEA-TFMP)\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\u003e757-95-9\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 120px;\"\u003e\n\u003ctd style=\"width: 33.7019%; height: 120px;\"\u003e\u003cem\u003eChemical Formula\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 65.9772%; height: 120px;\"\u003e\n\u003cp\u003e\u003cspan\u003e(CF\u003c\/span\u003e\u003csub\u003e3\u003c\/sub\u003e\u003cspan\u003eCH\u003c\/span\u003e\u003csub\u003e2\u003c\/sub\u003e\u003cspan\u003eO)\u003c\/span\u003e\u003csub\u003e2\u003c\/sub\u003e\u003cspan\u003eP(O)CH\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\/CBEATFMP_Structure_100x100.jpg?v=1789894492\" 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%\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\u003e260.07 g\/mol\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 33.7019%; height: 19.6px;\"\u003e\u003cem\u003eBoiling Point\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 65.9772%; height: 19.6px;\"\u003e\u003cspan\u003e183-184 °C (lit.)\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 25 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 TFMP 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\u003ca href=\"https:\/\/www.sciencedirect.com\/science\/article\/abs\/pii\/S0013468614003648\"\u003e\u003cspan\u003eZ. Zeng, et al. Bis(2,2,2-trifluoroethyl) methylphosphonate: An Novel Flame-retardant Additive for Safe Lithium-ion Battery, Electrochimica Acta, 2014, 129, 300-304\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/onlinelibrary.wiley.com\/doi\/abs\/10.1002\/ente.201800133\"\u003e\u003cspan\u003eT. Dagger, et al. Comparative Performance Evaluation of Flame Retardant Additives for Lithium Ion Batteries – II. Full Cell Cycling and Postmortem Analyses, Energy Technology, 2018, 6, 2023-2035\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"CHEMFISH","offers":[{"title":"5 g","offer_id":48412752609510,"sku":"CBEATFMP5","price":109.0,"currency_code":"USD","in_stock":true},{"title":"10 g","offer_id":48412752642278,"sku":"CBEATFMP10","price":189.0,"currency_code":"USD","in_stock":true},{"title":"25 g","offer_id":48412752675046,"sku":"CBEATFMP25","price":439.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/6591\/1526\/files\/CBEATFMP_main.jpg?v=1789894492","url":"https:\/\/echemsupplies.com\/products\/cbeatfmp","provider":"EChem Supplies","version":"1.0","type":"link"}