916803

1 M Biphenyl in THF

a precursor solution to prepare the prelithiation/presodiation reagent for disordered carbon, SiO, Sn, Sb, P, and S electrodes

• Empirische Formel (Hill-System): C₁₂H₁₀
• Molekulargewicht: 154.21
• MDL-Nummer: MFCD00003054
• UNSPSC-Code: 12352401
• NACRES: NA.23

Eigenschaften

• Qualitätsniveau: 100
• Form: liquid
• Konzentration: 1 M
• Verunreinigungen: ≤1000 ppm H₂O
• Anwendung(en): battery manufacturing
• Lagertemp.: 2-8°C

Beschreibung

Anwendung

This product is biphenyl (Bp) solution in anhydrous THF (1 mol/L) is a precursor reagent that could be easily handled to prepare prelithiation or presodiation reagent. By direct reaction of Li metal, it forms a strong reducing reagent of Li-Bp. The resulting Li-Bp/THF reagent has the redox potential of 0.41 V vs. Li/Li⁺, which is applicable to prelithiate most of the active materials for Li ion batteries, such as Sn, Sb, P, S, SiO and other metal oxide. On the other hand, a presodiation reagent can be prepared by reacting Bp/THF solution with Na metal. Na-Bp/THF reagent can be used to presodiate hard carbon, a promising anode material in Na ion batteries.

Angaben zur Herstellung

Suggested Directions for use:

• Step 1 Preparation of Prelithiation/presodiation reagent

Before use of Li metal, scrub the lithium surface to remove oxide and nitride layers.
To prepare 1 M Li-Bp/THF reagent, > 0.07 g of Li metal is added into every 10 ml of 1 M BP/THF solution
To prepare 1 M Na-Bp/THF reagent, > 0.23 g of Na metal is added into every 10 ml of 1 M BP/THF solution

• Step 2 Prelithiation/presodiation of electrodes

For a 1 cm diameter electrode with 1-3 mg acitve material per cm², soak (10-60 min, times will vary with material) the electrode in ∼0.5-1 mL of prelithiation/presodiation reagent. Discard the solution and then wash the electrode twice with THF. Longer prelithiation/presodiation time may cause electrode structure deformation, leading to a decreased discharge/charge capacity.

Sicherheitshinweise

• Piktogramme: GHS02,GHS08,GHS07,GHS09
• Signalwort: Danger
• H-Sätze: H225,H302,H315,H319,H335,H336,H351,H411
• P-Sätze: P210 - P273 - P301 + P312 - P303 + P361 + P353 - P305 + P351 + P338 - P308 + P313
• Gefahreneinstufungen: Acute Tox. 4 Oral - Aquatic Chronic 2 - Carc. 2 - Eye Irrit. 2 - Flam. Liq. 2 - Skin Irrit. 2 - STOT SE 3
• Zielorgane: Central nervous system, Respiratory system
• Zusätzliche Gefahrenhinweise: EUH018,EUH019
• Lagerklassenschlüssel: 3 - Flammable liquids
• WGK: WGK 2
• Flammpunkt (°F): 1.4 °F
• Flammpunkt (°C): -17 °C