939927

1,3-Propanediol cyclic sulfate

≥99.5%, ≤5 μmol/g acid, anhydrous, battery grade

• Synonyme(s) : 1,3,2-Dioxathiane 2,2-dioxide, 1,3,2-dioxathiane-2,2-dione, PCS battery additive, Trimethylene sulfate
• Formule empirique (notation de Hill) : C₃H₆O₄S
• Numéro CAS: 1073-05-8
• Poids moléculaire : 138.14
• Numéro MDL: MFCD00801144
• Code UNSPSC : 12352100

Propriétés

• Qualité: anhydrous; battery grade
• Niveau de qualité: 100
• Essai: ≥99.5%
• Forme: powder or crystals
• Impuretés: ≤100 ppm H₂O; ≤5 μmol/g acid
• pb: 153 °C
• Pf: 58-62 °C (lit.); 59-62 °C
• Solubilité: soluble (H₂O: highly soluble(lit.)); soluble (carbonates: soluble(lit.)); soluble (glymes: soluble(lit.))
• Application(s): battery manufacturing
• Chaîne SMILES: O=S1(=O)OCCCO1
• InChI: 1S/C3H6O4S/c4-8(5)6-2-1-3-7-8/h1-3H2
• Clé InChI: OQYOVYWFXHQYOP-UHFFFAOYSA-N

Description

Description générale

1,3-propanediol cyclic sulfate, abbreviated PCS, is a white solid at room temperature. PCS is soluble in water, carbonates, glymes, and many of the polar solvents used in battery liquid electrolytes.

Application

1,3-propanediol cyclic sulfate is used as a film-forming additive in battery liquid electrolytes and hybrid liquid-solid electrolytes, at concentrations up to 3%. During battery operation, 1,3-propanediol cyclic sulfate (PCS) is sacrificially reduced on the surface of the anode to form a protective and ionically conductive SEI layer and is sacrificially oxidized on the cathode to form a protective and ionically conductive CEI layer. Recent results show PCS helps form a sulfur-rich layer on graphite, NMC, LiCoO₂, and LiMNO electrodes. These layers significantly improve the battery’s cycling performance at high temperatures and inhibits the production of gas.[] Our battery grade PCS meets specifications for high purity, low moisture, and low acid content to facilitate optimal performance of your electrolyte formulation.

Informations sur la sécurité

• Pictogrammes: GHS08,GHS05,GHS07
• Mention d'avertissement: Danger
• Mentions de danger: H317,H318,H341,H351
• Conseils de prudence: P202 - P261 - P280 - P302 + P352 - P305 + P351 + P338 - P308 + P313
• Classification des risques: Carc. 2 - Eye Dam. 1 - Muta. 2 - Skin Sens. 1B
• Code de la classe de stockage: 11 - Combustible Solids
• Classe de danger pour l'eau (WGK): WGK 3
• Point d'éclair (°F): Not applicable
• Point d'éclair (°C): Not applicable