{"product_id":"cbeapdtd","title":"PDTD (4-Propyl-1,3,2-dioxathiolane 2,2-dioxide, or PEGLST, \u003e99.5%) as Battery Electrolyte Additive, 10-50 g\/bottle, CBEAPDTD","description":"\u003cp\u003ePDTD—systematically named 4-propyl-1,3,2-dioxathiolane 2,2-dioxide (or propyl ethylene sulfate, also called PEGLST)—is an alkyl-substituted cyclic sulfate functional additive. It belongs to the same family of cyclic sulfate film-formers as ethylene sulfate (DTD) and propylene sulfate (MDTD), engineered to improve interphase stability in high-voltage lithium-ion (LIB), lithium-metal, and sodium-ion batteries.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSacrificial Reduction \u0026amp; Conductive Inorganic SEI\u003c\/strong\u003e: PDTD possesses a higher reduction potential (~ 1.3 V to 1.4 V vs. Li\/Li+) than baseline cyclic\/linear carbonate solvents (EC, DMC, EMC). It reduces preferentially on graphite, silicon-carbon, or metal anodes via ring-opening cleavage of C–O and S–O bonds. This generates an inorganic-rich Solid Electrolyte Interphase (SEI) composed of lithium sulfate (Li2SO4), lithium sulfite (Li2SO3), and alkyl sulfates.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHigh-Voltage Cathode Passivation (CEI)\u003c\/strong\u003e: PDTD participates in sacrificial oxidative decomposition on cathode surfaces at high operating potentials (\u0026gt;4.4 V vs. Li\/Li+). The resulting Cathode Electrolyte Interphase (CEI) passivates surface catalytic sites, suppressing transition-metal leaching (Ni^{3+}\/Ni^{4+}, Co^{3+}, Mn^{3+}) and preventing electrolyte oxidation on nickel-rich cathodes (such as NMC622\/NMC811) and high-voltage LiCoO2 (LCO).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLow Melting Point \u0026amp; Superior Solubility (Advantage over DTD)\u003c\/strong\u003e: Unsubstituted ethylene sulfate (DTD) has a high melting point (~ 95–97°C) and limited solubility in linear carbonates at low temperatures. The longer aliphatic propyl side chain breaks molecular symmetry, giving PDTD a much lower melting point and enhanced solubility in liquid carbonate blends. This ensures stable low-temperature performance and avoids additive crystallization.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLower Charge-Transfer Resistance \u0026amp; Coulombic Efficiency\u003c\/strong\u003e: The sulfur-rich interphases derived from cyclic sulfates exhibit high ionic conductivity for Li+ or Na+ ions, lowering charge-transfer impedance at the electrode interface. PDTD significantly boosts initial Coulombic efficiency (ICE) and extended cycling capacity retention in full cells.\u003c\/p\u003e\n\u003ctable width=\"100%\" style=\"width: 100%; height: 289.325px;\"\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\u003eCBEAPDTD (C-BEA-PDTD)\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\u003e165108-64-5\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 107.725px;\"\u003e\n\u003ctd style=\"width: 33.6331%; height: 107.725px;\"\u003e\u003cem\u003eChemical Formula\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0072%; height: 107.725px;\"\u003e\n\u003cp\u003e\u003cspan\u003eC\u003c\/span\u003e\u003csub\u003e5\u003c\/sub\u003e\u003cspan\u003eH\u003c\/span\u003e\u003csub\u003e10\u003c\/sub\u003e\u003cspan\u003eO\u003c\/span\u003e\u003csub\u003e4\u003c\/sub\u003e\u003cspan\u003eS\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\/CBEAPDTD_02_100x100.jpg?v=1786041160\" 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\u003eColorless Liquid\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;99.5%\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: 33.6331%; height: 19.6px;\"\u003e\u003cem\u003eMolecular Weight\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0072%; height: 19.6px;\"\u003e\u003cspan\u003e166.20 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;\"\u003e\u003cspan\u003e10 g, 25 g, and 50 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 store the PDTD solution in a dry place (glovebox is the best).\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:\/\/pubs.acs.org\/aamick\/article-abstract\/11\/19\/17940\/1280114\/Stabilizing-LiCoO2-Graphite-at-High-Voltages-with?redirectedFrom=fulltext\"\u003eS. Wu, et al. Stabilizing LiCoO2\/Graphite at High Voltages with an Electrolyte Additive, ACS Appl. Mater. Interfaces (2019) 11 (19): 17940–17951\u003c\/a\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003ca href=\"https:\/\/pubs.acs.org\/aamick\/article-abstract\/10\/19\/16400\/707803\/Insight-into-the-Mechanism-of-Improved-Interfacial?redirectedFrom=fulltext\"\u003eY. Lin, et al. Insight into the Mechanism of Improved Interfacial Properties between Electrodes and Electrolyte in the Graphite\/LiNi0.6Mn0.2Co0.2O2 Cell via Incorporation of 4‑Propyl-[1,3,2]dioxathiolane-2,2-dioxide (PDTD), ACS Appl. Mater. Interfaces (2018) 10 (19): 16400–16409\u003c\/a\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"DDDC","offers":[{"title":"10 g","offer_id":48134180798694,"sku":"CBEAPDTD10","price":89.0,"currency_code":"USD","in_stock":true},{"title":"25 g","offer_id":48134180831462,"sku":"CBEAPDTD25","price":199.0,"currency_code":"USD","in_stock":true},{"title":"50 g","offer_id":48134180864230,"sku":"CBEAPDTD50","price":359.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/6591\/1526\/files\/CBEAPDTD_main.jpg?v=1786041004","url":"https:\/\/echemsupplies.com\/products\/cbeapdtd","provider":"EChem Supplies","version":"1.0","type":"link"}