{"product_id":"cscessbpbf4","title":"SBPBF4 (Spiro-(1,1'-bipyrrolidinium) Tetrafluoroborate, \u003e99.5%) as Electrolyte Salt for Supercapacitor, 5 g\/bottle, CSCESSBPBF4","description":"\u003cp\u003eSpiro-(1,1'-bipyrrolidinium) tetrafluoroborate—commonly abbreviated as SBPBF4 (CAS Number: 156410-09-2)—is a high-performance quaternary ammonium salt featuring a rigid, bicyclic spirocyclic cation. It is widely recognized as a premium alternative to traditional linear quaternary ammonium salts (like TEABF4) for demanding organic supercapacitor (EDLC) applications, particularly where high-temperature stability is required.\u003c\/p\u003e\n\u003cp\u003eThe SBP+ cation consists of two pyrrolidinium rings sharing a central quaternary spiro-nitrogen atom. This rigid, compact, and symmetrical bicyclic structure restricts internal molecular rotation, yielding a higher melting point, superior thermal stability, and enhanced resistance to structural degradation at elevated voltages compared to flexible chain cations. It exhibits exceptional thermal stability (often stable up to ~250°C) and an expanded electrochemical stability window, supporting high operating voltages (frequently evaluated up to 3.0 V to 3.2 V) without oxidative decomposition.\u003c\/p\u003e\n\u003cp\u003eLike TEABF4, SBPBF4 is formulated as a solute in anhydrous aprotic organic solvents: (i) Acetonitrile (AN) Based Recipe (High-Rate \/ Standard High-Voltage) with 1.0 M SBPBF4 dissolved in anhydrous Acetonitrile (AN), which delivers high ionic conductivity and low viscosity. However, because SBP+ has a slightly larger and more rigid hydrodynamic radius than TEA+, conductivities in AN are marginally lower than equivalent TEABF4 solutions, yet they offer improved voltage withstand capabilities. (ii) Propylene Carbonate (PC) Based Recipe (High-Temperature \/ Extended Life) with 1.0 M SBPBF4 dissolved in anhydrous Propylene Carbonate (PC). This is one of the most prominent formulations for high-temperature supercapacitors. The combination of the rigid SBP+ cation and the high-boiling PC solvent suppresses gas generation and electrolyte breakdown under accelerated aging tests at elevated temperatures (e.g., 65°C to 85°C).\u003c\/p\u003e\n\u003ctable style=\"width: 100%; height: 380.525px;\" 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\u003eCSCESSBPBF4 (C-SC-ES-SBPBF4)\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\u003e129211-47-8\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 158.725px;\"\u003e\n\u003ctd style=\"width: 33.7019%; height: 158.725px;\"\u003e\u003cem\u003eChemical Formula\/Structure\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 65.9772%; height: 158.725px;\"\u003e\n\u003cp\u003e\u003cspan\u003eC\u003c\/span\u003e\u003csub\u003e8\u003c\/sub\u003e\u003cspan\u003eH\u003c\/span\u003e\u003csub\u003e16\u003c\/sub\u003e\u003cspan\u003eBF\u003c\/span\u003e\u003csub\u003e4\u003c\/sub\u003e\u003cspan\u003eN\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\/CSCESSBPBF4_Structure_100x100.jpg?v=1790645740\" 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\u003eMolar Mass\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 65.9772%; height: 35.6px;\"\u003e\n\u003cp\u003e\u003cspan\u003e213.03 g\/mol\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;99.5% (Battery Grade)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eMoisture≤50 ppm, Free acid: ≤100 ppm\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\u003eMelt Point\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 65.9772%; height: 19.6px;\"\u003e~190 °C\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;\"\u003e5 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 SBPBF4 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\u003cspan\u003e\u003ca href=\"https:\/\/www.sciencedirect.com\/science\/article\/abs\/pii\/S0378775314006454\"\u003eX. Yu, et al. Spiro-(1,1′)-bipyrrolidinium tetrafluoroborate salt as high voltage electrolyte for electric double layer capacitors, Journal of Power Sources, 2014, 265, 309-316\u003c\/a\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003ca href=\"https:\/\/www.sciencedirect.com\/science\/article\/abs\/pii\/S037877531300517X\"\u003eE. Perricone, et al. Safe and performant electrolytes for supercapacitor. Investigation of esters\/carbonate mixtures, Journal of Power Sources, 2013, 239, 217-224\u003c\/a\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"MKL","offers":[{"title":"Default Title","offer_id":67593000583398,"sku":"CSCESSBPBF4","price":399.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/6591\/1526\/files\/CSCESSBPBF4_main.jpg?v=1790645541","url":"https:\/\/echemsupplies.com\/products\/cscessbpbf4","provider":"EChem Supplies","version":"1.0","type":"link"}