920398

Lithium-bis-(trimethylsilyl)-amid

99.9% trace metals basis

• Synonym(e): Hexamethyldisilazan Lithiumsalz
• Lineare Formel: [(CH₃)₃Si]₂NLi
• CAS-Nummer: 4039-32-1
• Molekulargewicht: 167.33
• MDL-Nummer: MFCD00008261
• UNSPSC-Code: 12352111

Eigenschaften

• Qualität: for analytical purposes
• Qualitätsniveau: 200
• Assay: 99.9% trace metals basis
• Form: solid
• Dichte: 0.860 g/mL at 25 °C (lit.)
• Anwendung(en): battery manufacturing
• SMILES String: [Li]N([Si](C)(C)C)[Si](C)(C)C
• InChI: 1S/C6H18NSi2.Li/c1-8(2,3)7-9(4,5)6;/h1-6H3;/q-1;+1
• InChIKey: YNESATAKKCNGOF-UHFFFAOYSA-N

Beschreibung

Allgemeine Beschreibung

Lithium bis(trimethylsilyl)amide also known as lithium hexamethyldisilazide (LiHMDS) is a non-nucleophilic strong base. It exhibits ionic conductivity and is widely used as a lithium source and additive in electrolyte formulations for lithium-ion batteries.

Anwendung

Lithium bis(trimethylsilyl)amide can be used:

• As an electrolyte additive for non-aqueous lithium metal batteries. LiHMDS acts as a scavenger for hydrofluoric acid and forms an electrochemical robust cathode|electrolyte interphase (CEI) and suppresses the side reactions with the electrolyte solution.[1]
• As a lithium precursor for atomic layer deposition(ALD) of textured Li₄Ti₅O₁₂ as anode material for Li-ion ultrafast charging thin-film batteries. It enables the controlled delivery of lithium atoms into the deposition process, leading to the growth of thin films with precise thickness and composition.[2]
• As a precursor to fabricate in situ lithiated quinone cathode as high-capacity organic electrode material for all-solid-state thin-film battery setup.[3]

Sicherheitshinweise

• Piktogramme: GHS02,GHS05
• Signalwort: Danger
• H-Sätze: H228,H251,H314
• P-Sätze: P210 - P235 - P260 - P280 - P303 + P361 + P353 - P305 + P351 + P338
• Gefahreneinstufungen: Eye Dam. 1 - Flam. Sol. 1 - Self-heat. 1 - Skin Corr. 1B
• Zusätzliche Gefahrenhinweise: EUH014
• Lagerklassenschlüssel: 4.2 - Pyrophoric and self-heating hazardous materials
• WGK: WGK 2
• Flammpunkt (°F): 62.6 °F - closed cup
• Flammpunkt (°C): 17 °C - closed cup