{"product_id":"cbespy12tfsi","title":"Py12TFSI {1-Ethyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)imide, \u003e99.9%} Ionic Liquid as Battery Electrolyte Solvent, 25-100 g\/bottle, CBESPy12TFSI","description":"\u003cp\u003ePy12TFSI (1-Ethyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)imide) is a prominent room-temperature ionic liquid (RTIL) engineered for advanced electrochemical devices, including lithium-metal batteries, high-voltage sodium-ion systems, and supercapacitors. Composed of an aliphatic quaternary ammonium pyrrolidinium cation and a heavily fluorinated imide anion, it offers a distinct profile of stability compared to conventional organic carbonate solvents.\u003c\/p\u003e\n\u003cp\u003eThe key physicochemical \u0026amp; electrochemical characteristics are: (1) \u003cstrong\u003eWide Electrochemical Window\u003c\/strong\u003e: Py12TFSI features a broad stability window (typically exceeding 5.0-6.0 V vs. Li\/Li+), making it structurally resilient against high-potential cathode surfaces—such as high-voltage olivines (like LMFP) or high-nickel layered oxides. (2) \u003cstrong\u003eThermal Safety \u0026amp; Non-Volatility\u003c\/strong\u003e: Like other members of the pyrrolidinium family, it is non-volatile, non-flammable, and exhibits high thermal decomposition thresholds, drastically reducing risks associated with thermal runaway. (3) \u003cstrong\u003eAnodic vs. Cathodic Stability\u003c\/strong\u003e: The aliphatic pyrrolidinium ring provides superior resistance against reduction at negative potentials compared to aromatic cations (like imidazolium), lending itself well to stable cycling with carbonaceous anodes or lithium metal.\u003c\/p\u003e\n\u003ctable style=\"width: 100%; height: 272.4px;\" 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\u003eCBESPy12TFSI (C-BES-Py12TFSI)\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\u003e223436-99-5\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\u003eChemical Formula\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0072%; height: 35.6px;\"\u003e\n\u003cp\u003eC₉H₁₆F₆N₂O₄S₂\u003c\/p\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0774\/6591\/1526\/files\/CBESPy12TFSI_Structure_100x100.jpg?v=1791155846\" alt=\"\" style=\"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\u003eSolid\/powder to crystal\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 71.2px;\"\u003e\n\u003ctd style=\"width: 33.6331%; height: 71.2px;\"\u003e\n\u003cstrong\u003e \u003c\/strong\u003e\u003cem\u003ePurity\u003c\/em\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 66.0072%; height: 71.2px;\"\u003e\n\u003cp\u003e\u003cspan\u003e\u0026gt;99.9% (Battery Grade)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eHumidity level\u0026lt;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: 33.6331%; height: 19.6px;\"\u003e\u003cem\u003eMolecular Weight\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0072%; height: 19.6px;\"\u003e\u003cspan\u003e394.35 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\u003eDensity\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0072%; height: 19.6px;\"\u003e\u003cspan\u003e~1.183 g\/cm3\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\u003e25 g, 50 g, and 100 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 Py12TFSI in a dry place (dryroom or glovebox is preferred 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:\/\/advanced.onlinelibrary.wiley.com\/doi\/abs\/10.1002\/adfm.202525343\"\u003eM. Jabeen, et al. Thermally Adaptive PVDF-HFP\/Ionic Liquid Electrolyte Enabling Stable SEI\/CEI Formation in Sodium Metal Batteries, Adv. Funct. Mater., 2026, 36, e25343\u003c\/a\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003ca href=\"https:\/\/pubs.rsc.org\/cc\/article-abstract\/60\/40\/5298\/838870\/Enabling-wide-temperature-battery-operation-with\"\u003eS. A. Langevin, et al. Enabling wide temperature battery operation with hybrid lithium electrolytes, Chem. Commun. (2024) 60 (40): 5298–5301.\u003c\/a\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"DDDC","offers":[{"title":"25 g","offer_id":67623627522278,"sku":"CBESPy12TFSI25","price":119.0,"currency_code":"USD","in_stock":true},{"title":"50 g","offer_id":67623627555046,"sku":"CBESPy12TFSI50","price":199.0,"currency_code":"USD","in_stock":true},{"title":"100 g","offer_id":67623627587814,"sku":"CBESPy12TFSI100","price":359.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/6591\/1526\/files\/CBESPy12TFSI_main.jpg?v=1791155771","url":"https:\/\/echemsupplies.com\/products\/cbespy12tfsi","provider":"EChem Supplies","version":"1.0","type":"link"}