{"product_id":"cbeatvsi","title":"TVSi (Tetravinylsilane, \u003e98.0%) as Battery Electrolyte Additive, 5-25 g\/bottle, CBEATVSi","description":"\u003cp\u003eTetravinylsilane (TVSi) is a tetra-functional organosilicon additive featuring four reactive vinyl groups (-CH=CH2) bound to a central silicon atom (Si(CH=CH2)4). It serves as a cross-linking film-former, cathode passivator, and dendrite-suppressing interphase builder in non-aqueous electrolytes for lithium-ion (LIBs), silicon-anode, lithium-metal, and post-lithium batteries. The core functional roles \u0026amp; electrochemical advantages are shown below:\u003c\/p\u003e\n\u003cp\u003e(1)\u003cstrong\u003e High-Density Cross-Linked Polymeric Interphase (SEI \u0026amp; CEI)\u003c\/strong\u003e: TVSi contains four symmetrically arranged, electron-rich vinyl double bonds. During initial formation or electrochemical cycling, TVSi undergoes multi-directional radical polymerization at lower reduction potentials on the anode (~ 1.2–1.4 V vs. Li\/Li+) and higher oxidation potentials on the cathode. This yields a 3D cross-linked poly-siloxane\/poly-alkene network across both electrode surfaces that is significantly more thermally and mechanically resilient than linear polymer interphases formed by mono- or di-vinyl additives. \u003c\/p\u003e\n\u003cp\u003e(2) \u003cstrong\u003eHigh-Voltage Cathode Passivation \u0026amp; Transition Metal Retention\u003c\/strong\u003e: On high-voltage nickel-rich cathodes (NMC811, NCMA) or high-voltage cobalt oxides (\u0026gt;4.4 V vs. Li\/Li+), TVSi oxidizes to form a silane-derived Cathode Electrolyte Interphase (CEI). This layer blocks catalytic surface defects, preventing transition-metal leaching (Ni^{3+}\/Ni}^{4+}, Mn^{3+}) and suppressing parasitic oxidation of carbonate co-solvents (EC, EMC).\u003c\/p\u003e\n\u003cp\u003e(3) \u003cstrong\u003eHomogeneous Li+ Flux \u0026amp; Dendrite Mitigation\u003c\/strong\u003e: The rigid yet flexible organosilicon network acts as an ion-sieve, leveling local electric field variations on alkali-metal anodes. This promotes uniform Li+ deposition, suppressing dendritic nucleation and improving Coulombic efficiency in lithium-metal batteries.\u003c\/p\u003e\n\u003ctable style=\"width: 100%; height: 178.6px;\" 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\u003eCBEATVSi (C-BEA-TVSi)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6331%;\"\u003e\u003cem\u003eCAS\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0072%;\"\u003e\n\u003cp\u003e\u003cspan\u003e1112-55-6\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\u003e\u003cspan\u003eSi(CH=CH\u003c\/span\u003e\u003csub\u003e2\u003c\/sub\u003e\u003cspan\u003e)\u003c\/span\u003e\u003csub\u003e4\u003c\/sub\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0774\/6591\/1526\/files\/CBEATVSi_02_100x100.jpg?v=1786216371\" 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\n\u003cstrong\u003e \u003c\/strong\u003e\u003cem\u003ePurity\u003c\/em\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 66.0072%; height: 35.6px;\"\u003e\n\u003cp\u003e\u003cspan\u003e\u0026gt;98.0%\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\u003e136.27 g\/mol\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6331%;\"\u003e\u003cem\u003eBoiling Point\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0072%;\"\u003e\u003cspan\u003e130-131 °C (lit.)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6331%;\"\u003e\u003cem\u003eDensity\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0072%;\"\u003e\u003cspan\u003e0.8 g\/mL at 25 °C (lit.)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 16.6px;\"\u003e\n\u003ctd style=\"width: 33.6331%; height: 16.6px;\"\u003e\u003cem\u003ePackage Size\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0072%; height: 16.6px;\"\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\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eNotes\u003c\/strong\u003e: Please try to store the TVSi liquid 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:\/\/www.sciencedirect.com\/science\/article\/abs\/pii\/S2405829724007025\"\u003e\u003cspan\u003eZ. Lin, et al. In situ construction of an electron-withdrawing polymer coating layer on NCM811 interface for high-performance lithium-ion batteries, Energy Storage Materials, 2024, 73, 103876.\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003ca href=\"https:\/\/www.chinesechemsoc.org\/doi\/full\/10.31635\/ccschem.024.202404120\"\u003eY. Huang, et al. Tailored Interphases Construction for Enhanced Si Anode and Ni-Rich Cathode Performance in Lithium-Ion Batteries, CCS Chem. 2025, 7, 429–439\u003c\/a\u003e \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"MKL","offers":[{"title":"5 g","offer_id":48138522820838,"sku":"CBEATVSi5","price":109.0,"currency_code":"USD","in_stock":true},{"title":"10 g","offer_id":48138522853606,"sku":"CBEATVSi10","price":199.0,"currency_code":"USD","in_stock":true},{"title":"25 g","offer_id":48138522886374,"sku":"CBEATVSi25","price":449.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/6591\/1526\/files\/CBEATVSi_main.jpg?v=1786216371","url":"https:\/\/echemsupplies.com\/products\/cbeatvsi","provider":"EChem Supplies","version":"1.0","type":"link"}