{"product_id":"cscesteatfb","title":"TEATFB (Tetraethylammonium Tetrafluoroborate, TEABF₄, \u003e99.5%) as Electrolyte Salt for Supercapacitor, 50-200 g\/bottle, CSCESTEATFB","description":"\u003cp\u003eTetraethylammonium tetrafluoroborate—commonly abbreviated as TEABF4 (CAS Number: 429-06-1)—is the benchmark, most widely utilized quaternary ammonium salt for commercial and high-performance laboratory-scale organic supercapacitors (Electric Double-Layer Capacitors, EDLCs).\u003c\/p\u003e\n\u003cp\u003eTEABF4 is rarely used on its own; it is formulated as the active ionic solute in high-purity, moisture-free organic aprotic solvents: (i) \u003cstrong\u003eAcetonitrile (AN) Based Recipe (Standard High-Power): \u003c\/strong\u003e1.0 M TEABF4 dissolved in anhydrous Acetonitrile (AN). It offers the lowest viscosity and highest ionic conductivity among organic electrolytes (often exceeding 50–60 mS\/cm at room temperature), enabling exceptional rate capability and low equivalent series resistance (ESR). (ii) Propylene Carbonate (PC) Based Recipe: 1.0 M TEABF4 dissolved in anhydrous Propylene Carbonate (PC). PC provides a higher boiling point, lower volatility, and a broader liquid range than acetonitrile. Although lower in conductivity due to PC's higher viscosity, this formulation is favored for cells requiring extended high-temperature shelf life or improved safety profiles.\u003c\/p\u003e\n\u003cp\u003eIts main electrochemical performance features are: (1) \u003cstrong\u003eWide Operating Potential Window\u003c\/strong\u003e: Enables stable supercapacitor cell voltage windows of 2.7 V to 3.0 V (compared to ~1.2 V for aqueous systems), directly boosting energy density. (2) \u003cstrong\u003eEffective Pore Access\u003c\/strong\u003e: The effective solvated ionic radii of TEA+ and BF4^- match well with the optimized micropore distribution (0.7–1.2 nm) of activated carbon electrodes, ensuring high specific capacitance values. (3) \u003cstrong\u003eLong Cycle Life\u003c\/strong\u003e: Chemically inert toward standard carbon current collectors and aluminum foil terminals, supporting hundreds of thousands of deep charge-discharge cycles with minimal capacity fade.\u003c\/p\u003e\n\u003ctable style=\"width: 100%; height: 160.6px;\" width=\"100%\"\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\u003eCSCESTEATFB (C-SC-ES-TEATFB)\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\u003e429-06-1\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.7019%;\"\u003e\u003cem\u003eChemical Formula\/Structure\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 65.9772%;\"\u003e\n\u003cp\u003e\u003cspan\u003e(C\u003csub\u003e2\u003c\/sub\u003eH\u003csub\u003e5\u003c\/sub\u003e)\u003csub\u003e4\u003c\/sub\u003eN(BF\u003csub\u003e4\u003c\/sub\u003e)\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0774\/6591\/1526\/files\/CSCESTEATFB_Structure_100x100.jpg?v=1790643308\" alt=\"\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.7019%;\"\u003e\u003cem\u003eMolar Mass\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 65.9772%;\"\u003e\n\u003cp\u003e\u003cspan\u003e217.06 g\/mol\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 10px;\"\u003e\n\u003ctd style=\"width: 33.7019%; height: 10px;\"\u003e\n\u003cstrong\u003e \u003c\/strong\u003e\u003cem\u003ePurity\u003c\/em\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 65.9772%; height: 10px;\"\u003e\n\u003cp\u003e\u003cspan\u003e\u0026gt;99.5%\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\u003eInsoluble\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 65.9772%; height: 19.6px;\"\u003e\u003cspan\u003e≤200 ppm\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\u003eMoisture\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 65.9772%; height: 19.6px;\"\u003e\u003cspan\u003e≤50 ppm (anhydrous, battery grade)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 20.6px;\"\u003e\n\u003ctd style=\"width: 33.7019%; height: 20.6px;\"\u003e\u003cem\u003eFree Acid\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 65.9772%; height: 20.6px;\"\u003e≤100 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.7019%;\"\u003e\u003cem\u003eMelt Point\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 65.9772%;\"\u003e≥300 °C (lit.)\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\u003ePackaging Grade\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 65.9772%; height: 19.6px;\"\u003e50 g, 100 g, and 200 g\/bottle\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 TEATFB powder in a dry place (glovebox is the best option).\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:\/\/pubs.rsc.org\/ee\/article-abstract\/15\/7\/2948\/767088\/Designing-supercapacitor-electrolyte-via-ion\"\u003e\u003cspan\u003eS. Jayaraman, et al. Designing supercapacitor electrolyte via ion counting, Energy Environ. Sci. (2022) 15 (7): 2948–2957.\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003ca href=\"https:\/\/www.sciencedirect.com\/science\/article\/abs\/pii\/S0378775325009656\"\u003eH. Gao, et al. Ultrafast activation to form through-hole carbon facilitates ion transport for high specific capacity supercapacitors, Journal of Power Sources, 2025, 644, 237129.\u003c\/a\u003e \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"MKL","offers":[{"title":"50 g","offer_id":67592595964134,"sku":"CSCESTEATFB50","price":119.0,"currency_code":"USD","in_stock":true},{"title":"100 g","offer_id":67592595996902,"sku":"CSCESTEATFB100","price":209.0,"currency_code":"USD","in_stock":true},{"title":"200 g","offer_id":67592596029670,"sku":"CSCESTEATFB200","price":379.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/6591\/1526\/files\/CSCESTEATFB_main.jpg?v=1790643270","url":"https:\/\/echemsupplies.com\/products\/cscesteatfb","provider":"EChem Supplies","version":"1.0","type":"link"}