What is Silicon (Si) Nanopowder for Battery Applications?

Silicon (Si) Nanopowder is a finely dispersed form of silicon nanoparticles specifically engineered for use in lithium-ion battery anode applications. Due to its high energy density, superior electrochemical properties, and outstanding charge-storage capabilities, silicon nanopowder is extensively used as an advanced anode material to significantly enhance battery performance.

Chemical Properties and CAS Number

• Material: Silicon (Si) Nanopowder

• CAS Number: 7440-21-3

• Molecular Weight: 28.085 g/mol

• Density: 2.33 g/cm³

• Melting Point: 1414°C

• Boiling Point: 3265°C

• Appearance: Dark brown to black powder

• Particle Size: Typically <100 nm (customizable)

• Purity: Usually 99.9% – 99.999%

Applications of Silicon (Si) Nanopowder

• Lithium-ion Battery Anodes: Enhances battery capacity, stability, cycling life, and energy density significantly over traditional graphite.

• Energy Storage Systems: Used in high-performance rechargeable batteries for electric vehicles (EVs), portable electronics, and grid-scale storage.

• Electronics and Semiconductor: Incorporated into advanced electronic components and thin-film devices due to its high conductivity and nano-scale reactivity.

• Solar Cell Applications: Improves efficiency in photovoltaic cells and energy conversion technologies.

• Nanotechnology Research: Key material in developing advanced composite materials, nanowires, and next-generation battery electrodes.

Pricing of Silicon (Si) Nanopowder

Pricing depends on purity, particle size, packaging, and quantity:

• Laboratory Scale (small quantities): $50 – $500 per 10 grams

• Industrial Scale: $2000 – $10,000 per kilogram, depending on specifications

• Custom Specifications: Prices provided upon request, dependent on purity, particle size, and order volume

Factors Influencing Pricing

• Nanoparticle size distribution (10 nm – 100 nm)

• High purity grades (99.9% to 99.999%)

• Custom processing requirements (surface modification, coating)

• Bulk purchasing discounts

• Special packaging and handling for moisture-sensitive materials