{"product_id":"cbeatmspi","title":"TMSPi (Tris(trimethylsilyl) Phosphite, 98.0%) as Battery Electrolyte Additive, 25 g\/bottle, CBEATMSPi","description":"\u003cp\u003eTMSPi (Tris(trimethylsilyl) Phosphite is an organosilicon-derived, trivalent phosphorus(III)-based additive that has been extensively studied for its ability to enhance the performance and stability of high-voltage LIBs. It is considered a multi-functional additive as it improves the cell on both the cathode and in the bulk electrolyte.\u003c\/p\u003e\n\u003cp\u003e(1)\u003cstrong\u003e CEI formation mechanism\u003c\/strong\u003e: TMSPi has a High Occupied Molecular Orbital (HOMO) level, meaning it is easier to oxidize than the main carbonate solvents. When the cell is charged to a high potential (e.g., above $4.2 V), TMSPi preferentially decomposes (oxidizes) on the cathode surface. The scission of the trimethylsilyl (TMS) groups allows the central phosphite moiety to form a protective film. \u003c\/p\u003e\n\u003cp\u003e(2) \u003cstrong\u003eSEI formation mechanism\u003c\/strong\u003e: While TMSPi primarily functions at the cathode, it can also contribute to anode stability. TMSPi can react chemically with radical anion intermediates formed from the reductive decomposition of the carbonate solvents, which generates a more stable and high-quality SEI film on the anode (like graphite or Si\/Gr), which helps stabilize the interface, especially at elevated operating temperatures.\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\u003eCBEATMSPi (C-BEA-TMSPi)\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\u003e1795-31-9\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\u003eC9H27O3PSi3\u003c\/p\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\u003cimg style=\"margin-bottom: 16px; float: none;\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0774\/6591\/1526\/files\/CBEATMSPi_molecular_structure_160x160.png?v=1765404824\"\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\u003e98.0%\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\u003e298.54 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\u003e~228-229 °C\/720 mmHg (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\u003e0.945 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\u003e25 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 try to store the TMSPi 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\u003cspan\u003e\u003ca href=\"https:\/\/www.sciencedirect.com\/science\/article\/abs\/pii\/S0013468614020015\"\u003eS. Mai, et al. Tris(trimethylsilyl)phosphite as electrolyte additive for high voltage layered lithium nickel cobalt manganese oxide cathode of lithium ion battery, Electrochimica Acta, 2014, 147, 565-571\u003c\/a\u003e.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003ca href=\"https:\/\/pubs.acs.org\/doi\/abs\/10.1021\/acsaem.9b00727\"\u003eJ. V. Laveda, et al. Stabilizing Capacity Retention in NMC811\/Graphite Full Cells via TMSPi Electrolyte Additives, ACS Appl. Energy Mater. 2019, 2, 10, 7036–7044\u003c\/a\u003e. \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"KLDX","offers":[{"title":"Default Title","offer_id":47025545707750,"sku":"CBEATMSPi","price":169.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/6591\/1526\/files\/CBEATMSPi.png?v=1765404824","url":"https:\/\/echemsupplies.com\/products\/cbeatmspi","provider":"EChem Supplies","version":"1.0","type":"link"}