{"product_id":"cbeamdtd","title":"MDTD (4-Methyl-1,3,2-dioxathiolane 2,2-Dioxide, \u003e99.0%) as Battery Electrolyte Additive, 5-25 g\/bottle, CBEAMDTD","description":"\u003cp\u003e4-Methyl-1,3,2-dioxathiolane 2,2-dioxide (MDTD)—commonly known as Propylene Sulfate (PGLT) or Methyl Ethylene Sulfate—is a cyclic sulfate functional additive used in non-aqueous electrolytes for high-voltage lithium-ion (LIBs), lithium-metal, and sodium-ion batteries. It is the methyl-substituted derivative of ethylene sulfate (DTD).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSacrificial Reduction \u0026amp; Conductive Inorganic SEI\u003c\/strong\u003e: MDTD possesses a higher reduction potential (~ 1.3 V to 1.5 V vs. Li\/Li+) than standard cyclic carbonates like ethylene carbonate (EC) or propylene carbonate (PC). It reduces preferentially on graphite, silicon-carbon, or lithium anodes via ring-opening cleavage of C–O and S–O bonds, forming an inorganic sulfur-rich Solid Electrolyte Interphase (SEI) composed of Li2SO4, Li2SO3, and alkyl sulfates.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCathode Interphase Passivation at High Voltages (\u0026gt;4.5 V)\u003c\/strong\u003e: MDTD participates in sacrificial oxidative decomposition at cathode surfaces, constructing a thin, highly protective Cathode Electrolyte Interphase (CEI). This CEI suppresses transition-metal leaching Mn^{3+}, Ni^{3+}\/Ni^{4+} and lattice oxygen release in high-voltage cathodes like high-voltage spinels (LiNi0.5Mn1.5O4 \/ LNMO) and nickel-rich layered oxides (NCM811).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAdvantages Over Ethylene Sulfate (DTD)\u003c\/strong\u003e: (1) \u003cem\u003eEnhanced Solubility \u0026amp; Liquid Range\u003c\/em\u003e: The methyl group breaks molecular symmetry, lowering the melting point and increasing solubility in linear carbonate solvent mixtures compared to unsubstituted DTD. (2) \u003cem\u003eThinner, Uniform Interphase\u003c\/em\u003e: MDTD forms a thinner, more uniform, and less resistive interphase film than DTD, leading to lower charge-transfer resistance (Rct) and superior fast-charging\/high-rate performance. \u003c\/p\u003e\n\u003ctable width=\"100%\" style=\"width: 100%; height: 340.325px;\"\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\u003eCBEAMDTD (C-BEA-MDTD)\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\u003e5689-83-8\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: 33.6331%; height: 158.725px;\"\u003e\u003cem\u003eChemical Formula\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0072%; height: 158.725px;\"\u003e\n\u003cp\u003e\u003cspan\u003eC\u003c\/span\u003e\u003csub\u003e3\u003c\/sub\u003e\u003cspan\u003eH\u003c\/span\u003e\u003csub\u003e6\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\/CBEAMDTD_02_100x100.jpg?v=1785998438\" 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;99.0%\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\u003e138.14 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\u003e5 g, 10 g, and 25 g\/bottle\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eNotes\u003c\/strong\u003e: Please store the MDTD 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\u003ca href=\"https:\/\/pubs.rsc.org\/ta\/article-abstract\/12\/33\/22151\/873746\/High-voltage-performance-of-LiNi0-5Mn1-5O4-based\"\u003e\u003cspan\u003eJ. Mu, et al. High-voltage performance of LiNi0.5Mn1.5O4-based lithium-ion batteries with 4-methyl-1,3,2-dioxathiolane-2,2-dioxide (MDTD) as an electrolyte additive, J. Mater. Chem. A (2024) 12 (33): 22151–22165.\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.sciencedirect.com\/science\/article\/abs\/pii\/S2405829723005287\"\u003e\u003cspan\u003eH. Zhao, et al. Significance of electrolyte additive molecule structure in stabilizing interphase in LiNi0.8Co0.1Mn0.1O2\/artificial graphite pouch cells at high temperature, Energy Storage Materials, 2024, 65, 103151\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"MKL","offers":[{"title":"5 g","offer_id":48125290578150,"sku":"CBEAMDTD5","price":89.0,"currency_code":"USD","in_stock":true},{"title":"10 g","offer_id":48125290610918,"sku":"CBEAMDTD10","price":159.0,"currency_code":"USD","in_stock":true},{"title":"25 g","offer_id":48125290643686,"sku":"CBEAMDTD25","price":359.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/6591\/1526\/files\/CBEAMDTD_main.jpg?v=1785998438","url":"https:\/\/echemsupplies.com\/products\/cbeamdtd","provider":"EChem Supplies","version":"1.0","type":"link"}