{"product_id":"clibearbfsi","title":"RbFSI {[Rubidium bis(fluorosulfonyl)imide], \u003e99.95%} Powder as Electrolyte Additive for Lithium-Ion Battery, 10-50 g\/bottle, CLIBEARbFSI","description":"\u003cp\u003eRbFSI (Rubidium bis(fluorosulfonyl)imide, {RbN(SO2CF3)2} is an alkali metal imide salt investigated as a functional additive in non-aqueous electrolytes for lithium-metal, lithium-sulfur, and liquid-polysulfide flow batteries. It combines the heavy alkali cation Rb+ with the flexible, weakly coordinating, highly fluorinated TFSI- anion.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSelf-Healing Electrostatic Shield (SHES) Mechanism\u003c\/strong\u003e: In lithium-metal battery systems, local high electric fields at the tips of metallic lithium protuberances trigger non-uniform Li+ electrodeposition, leading to dendrite formation. The reduction potential of Rb+ (~ -2.93 V vs. SHE) is slightly lower than that of Li+ (~ -3.04 V. During high-rate charging, Rb+ ions accumulate at the sharp tips of growing Li dendrites without being reduced into rubidium metal. This forms a localized positively charged electrostatic shield that repels incoming Li+ ions toward flatter regions of the anode, driving smooth, dendrite-free lithium plating.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSolid Electrolyte Interphase (SEI) Modification \u0026amp; Polysulfide Interaction\u003c\/strong\u003e: (1) \u003cem\u003eF-Rich \u0026amp; Inorganic Interphases\u003c\/em\u003e: The TFSI- anion decomposes at low potentials to build an inorganic-rich interphase (containing LiF, Li2S, and Li3N species), suppressing continuous solvent breakdown. (2) \u003cem\u003ePolysulfide Compatibility\u003c\/em\u003e: In lithium-sulfur (Li-S) and lithium-polysulfide (LiPS) flow battery chemistries, the incorporation of RbTFSI enhances bulk electrolyte ionic conductivity and boosts Coulombic efficiency during long-term cycling.\u003c\/p\u003e\n\u003ctable width=\"100%\" style=\"width: 100%; height: 233px;\"\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\u003eCLIBEARbFSI (C-LIB-EA-RbFSI)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 87px;\"\u003e\n\u003ctd style=\"width: 33.6331%; height: 87px;\"\u003e\u003cem\u003eChemical Formula\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0072%; height: 87px;\"\u003e\n\u003cp\u003eRbN(SO2F)2\u003c\/p\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0774\/6591\/1526\/files\/CLIBEARbFSI_02_100x100.jpg?v=1785738080\" 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\u003eWhite Powder\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\u003ePurity\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0072%; height: 35.6px;\"\u003e\n\u003cp\u003e\u003cspan\u003e\u0026gt;99.95% (Battery Grade)\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\u003e266.6 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;\"\u003e10 g, 25 g, and 50 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 RbFSI powder in the glovebox due to its sensitivity to humidity and oxygen\u003c\/span\u003e\u003cspan\u003e \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\n\u003ca href=\"https:\/\/pubs.rsc.org\/eb\/article\/doi\/10.1039\/d6eb00050a\/1244564\/Secondary-alkali-metal-salts-in-supporting\"\u003e\u003cspan\u003eT. J. Leckie, et al. Secondary alkali-metal salts in supporting electrolytes for lithium polysulfide flow batteries, EES Batteries, 2026, DOI: 10.1039\/d6eb00050a.\u003c\/span\u003e\u003c\/a\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.sciencedirect.com\/science\/article\/abs\/pii\/S1388248108004554\"\u003e\u003cspan\u003eKeigo Kubota, et al., Novel inorganic ionic liquids possessing low melting temperatures and wide electrochemical windows: Binary mixtures of alkali bis(fluorosulfonyl)amides, Electrochemistry Communications, 2008, 10, 1886-1888. \u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"DDDC","offers":[{"title":"10 g","offer_id":48097925071078,"sku":"CLIBEARbFSI10","price":119.0,"currency_code":"USD","in_stock":true},{"title":"25 g","offer_id":48097925103846,"sku":"CLIBEARbFSI25","price":259.0,"currency_code":"USD","in_stock":true},{"title":"50 g","offer_id":48097925136614,"sku":"CLIBEARbFSI50","price":489.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/6591\/1526\/files\/CLIBEARbFSI_main.jpg?v=1785738080","url":"https:\/\/echemsupplies.com\/products\/clibearbfsi","provider":"EChem Supplies","version":"1.0","type":"link"}