1 M BIPHENYL IN DME A PRECURSOR SOLUTION TO PREPARE THE PRELITHIATION/PRESODIATION REAGENT FOR DISORDERED CARBON SIO SN SB P A (C15-1312-697)

Application

This product is biphenyl (Bp) solution in anhydrous DME (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/DME reagent 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/DME solution with Na metal. Na-Bp/DME reagent can be used to presodiate hard carbon, a promising anode material in Na ion batteries.

Preparation Note

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/DME reagent, > 0.07 g of Li metal is added into every 10 ml of 1 M BP/DME solution.
To prepare 1 M Na-Bp/DME reagent, > 0.23 g of Na metal is added into every 10 ml of 1 M BP/DME 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 DME. Longer prelithiation/presodiation time may cause electrode structure deformation, leading to a decreased discharge/charge capacity.

Molecular Weight: 154.21. Empirical Formula: C₁₂H₁₀. Quality Level: 100. form: liquid. concentration: 1 . M. application(s): battery manufacturing. storage temp.: 2-8°C. Pictograms: GHS02,GHS07,GHS08,GHS09. Signal Word: Danger. Hazard Statements: H225 - H315 - H319 - H332 - H335 - H360FD - H411. Precautionary Statements: P210 - P273 - P303 + P361 + P353 - P304 + P340 + P312 - P305 + P351 + P338 - P308 + P313. Hazard Classifications: Acute Tox. 4 Inhalation - Aquatic Chronic 2 - Eye Irrit. 2 - Flam. Liq. 2 - Repr. 1B - Skin Irrit. 2 - STOT SE 3. Target Organs: Respiratory system. Supp Hazards: EUH019. Storage Class Code: 3 - Flammable liquids. WGK: WGK 2. Flash Point(F): 33.8 °F. Flash Point(C): 1 °C.