{"product_id":"cpibeakdfob","title":"KDFOB (Potassium Difluoro(oxalato)borate, KODFB, \u003e99.9%) Powder as Electrolyte Additive for Potassium-Ion Battery, 10-25 g\/bottle, CPIBEAKDFOB","description":"\u003cp\u003ePotassium difluoro(oxalato)borate (commonly designated as KDFOB) is an advanced functional salt and interphase-directing additive engineered specifically for rechargeable potassium-ion (K-ion) and potassium-metal batteries. By pairing a potassium cation with the chelated, boron-based difluoro(oxalato)borate (DFOB-) anion, KDFOB bridges the gap between conventional simple halide salts and complex organic film-formers, offering robust interphase protection and enhanced electrochemical stability.\u003c\/p\u003e\n\u003cp\u003eIts functional roles in electrolyte engineering are: (1) \u003cstrong\u003eDual-Layer Interphase (SEI\/CEI) Passivation\u003c\/strong\u003e: KDFOB preferentially decomposes during early electrochemical formation cycles. Its ring-opening and reduction pathways yield a hybrid organic-inorganic Solid Electrolyte Interphase (SEI) and Cathode Electrolyte Interphase (CEI) rich in resilient boron, fluorine (KF), and oxalate decomposition species that stabilize reactive surfaces. (2) \u003cstrong\u003eAluminum Current Collector Protection\u003c\/strong\u003e: Similar to its lithium and sodium analogues, the DFOB- anion assists in passivating aluminum current collectors at elevated voltages, mitigating localized pitting corrosion and expanding the practical operating window of K-ion systems. (3) \u003cstrong\u003eSuppression of Continuous Parasitic Reactions\u003c\/strong\u003e: By forming a dense, compact passivation film on graphite, hard carbon, or potassium metal anodes, KDFOB effectively halts ongoing electrolyte consumption, thereby boosting initial Coulombic efficiency and long-term capacity retention.\u003c\/p\u003e\n\u003ctable style=\"width: 100%; height: 260px;\" 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\u003eCPIBEAKDFOB (C-PIB-EA-KDFOB)\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\u003e2102517-30-4\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 104px;\"\u003e\n\u003ctd style=\"width: 33.7019%; height: 104px;\"\u003e\u003cem\u003eChemical Formula\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 65.9772%; height: 104px;\"\u003e\n\u003cp\u003eC2BF2NaO4 \u003c\/p\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0774\/6591\/1526\/files\/CPIBEAKDFOB_Structure_100x100.jpg?v=1790238670\" 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\u003eWhite Powder\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;99.9% (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: 33.7019%; height: 19.6px;\"\u003e\u003cem\u003eMolecular Weight\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 65.9772%; height: 19.6px;\"\u003e\u003cspan\u003e159.82 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\u003ePackage Size\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 65.9772%; height: 19.6px;\"\u003e10 g and 25 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 KDFOB powder in the glovebox due to its sensitivity to humidity and oxygen.\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"MKL","offers":[{"title":"10 g","offer_id":50498939683046,"sku":"CPIBEAKDFOB10","price":499.0,"currency_code":"USD","in_stock":true},{"title":"25 g","offer_id":50498939715814,"sku":"CPIBEAKDFOB25","price":1199.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/6591\/1526\/files\/CPIBEAKDFOB_main.jpg?v=1790238670","url":"https:\/\/echemsupplies.com\/products\/cpibeakdfob","provider":"EChem Supplies","version":"1.0","type":"link"}