Lithium Metal Powder 99% CAS 7439-93-2

Lithium Metal Powder – High-Purity Stabilised Powder for Advanced Battery and Metallurgical Applications

Basic Information

• Product Name: Lithium metal powder (stabilised)

• CAS Number: 7439-93-2

• Purity: ≥98% (min) – note: product is marketed as 99% grade

• Particle Size: D50 < 50 µm (typical)

• Molecular Formula: Li

• Molecular Weight: 6.94 g/mol

• Appearance: Grey powder

• Properties: Soft, lightweight, silver-white alkali metal.

Overview
Lithium metal powder is a reactive alkali metal powder with high specific capacity and low density. The stabilised version (SLMP™ – Stabilised Lithium Metal Powder) is a promising material and technology that enables the use of a wider range of active materials in lithium‑ion batteries, leading to improved energy efficiency, enhanced safety, and potentially reduced system costs.

Key Applications

• Batteries: Used as a pre‑lithiation additive to compensate for initial capacity loss in lithium‑ion anodes, improving cycle life and energy density.

• Heat transfer fluids: As a component in thermal management systems due to its high specific heat and thermal conductivity.

• Metal alloys: Added to aluminium, magnesium, and other alloys to improve strength, corrosion resistance, and light weight.

• Chemical synthesis: Reducing agent in organic and inorganic reactions.

Key Performance Features

• High specific capacity (3,860 mAh/g) – ideal for energy‑dense battery systems.

• Low density (0.534 g/cm³) – contributes to lightweight materials.

• Stabilised form – improved handling and safety compared to non‑stabilised lithium.

• Fine particle size (D50 < 50 µm) – ensures good dispersion and reactivity.

Handling and Storage

• Lithium metal powder is pyrophoric and reacts violently with water, moisture, and air.

• Store under inert atmosphere (argon or nitrogen) in sealed containers.

• Keep away from oxidisers, acids, and moisture.

• Use under a dry inert gas blanket; handle with appropriate PPE (gloves, goggles, fire‑resistant clothing).

• In case of fire, use dry powder extinguishers; do not use water or CO₂.

Packaging
Available in 100 g, 500 g, 1 kg, and 5 kg containers under inert gas. Custom packaging on request.

Quality Assurance
Each batch is tested for purity (by ICP‑OES), particle size distribution, moisture content, and stabiliser content to ensure consistent performance.