High-Performance Nano Silicon Powder Li-ion Battery Anode Material

Overview of Nano Silicon Powder

Our Nano Silicon Powder is a high-purity, nano-scale silicon material produced using advanced chemical vapor deposition (CVD) or mechanical milling processes. As a next-generation anode active material, it boasts a theoretical specific capacity approximately 10 times greater than that of conventional graphite anodes. The nano-sized particles significantly shorten lithium-ion diffusion paths and effectively accommodate the volume expansion during charge/discharge cycles, making it ideal for high-energy-density applications such as electric vehicle (EV) power batteries, energy storage systems, and premium 3C digital devices.

Features of Nano Silicon Powder

• Ultra-High Energy Density: With a theoretical specific capacity of ≥ 3400 mAh/g, this material dramatically enhances the overall energy density of lithium-ion batteries, enabling longer EV ranges and thinner, lighter consumer electronics.
• Excellent Rate Performance: The nano-scale particle size drastically reduces the solid-state diffusion path for lithium ions, enabling rapid charge and discharge capabilities.
• Superior Structural Stability: Compared to micron-scale counterparts, our nano-silicon particles better withstand the massive volume expansion (approx. 300%) during lithiation/delithiation, minimizing electrode pulverization and significantly extending cycle life.
• Excellent Dispersibility: The particles exhibit a regular, spherical or quasi-spherical morphology, ensuring homogeneous dispersion within conductive agent and binder systems for a stable and consistent electrode structure.

Applications of Nano Silicon Powder

• Lithium-Ion Battery Anodes: The primary application is in high-performance silicon-carbon (Si/C) composites. This powder is compounded with carbon materials (graphite, carbon nanotubes, graphene, pitch) to create advanced anodes for Electric Vehicles (EVs), Hybrid Electric Vehicles (HEVs), and premium consumer electronics.
• Solid-State Battery R&D: Serves as a high-capacity anode material for next-generation solid-state battery development.
• Other Advanced Fields: Used in specialty alloy manufacturing, high-temperature resistant materials, optoelectronic devices, and as a carrier in biomedical applications.

Company Profile

Luoyang Tongrun Nano Technology Co., Ltd. (TRUNNANO) is a global supplier and manufacturer of high-performance battery materials. We specialize in lithium-ion, sodium-ion, and other advanced battery materials, serving 3C electronics, power batteries, and energy storage systems.

Our products include nano cobalt oxide, nano manganese oxide, silicon-carbon anode materials, hard carbon, NFPP, alumina, boron nitride, and more. All are produced under strict quality control, supported by our in-house lab and professional technical team.

If you are looking for reliable battery materials, feel free to contact us or send an inquiry.

Payment Methods

L/C, T/T, Western Union, Paypal, Credit Card, etc.

Shipment

By sea, by air, or by express upon payment receipt.

Package of Nano Silicon Powder

• Storage Conditions: The product is highly susceptible to moisture absorption and oxidation. It must be stored in vacuum-sealed or inert-gas-filled (e.g., N₂) containers in a cool, dry, and well-ventilated warehouse, away from heat and ignition sources.
• Transportation: Protect from rain, moisture, and physical impact during transport. While classified as a general chemical, strict moisture-proof sealing is required.
• Safety & Handling:
  • Personal Protection: Operators must wear suitable protective equipment, including N95-type dust masks, chemical safety goggles, and rubber gloves, to avoid inhalation or skin contact.
  • First Aid: In case of eye contact, rinse immediately with plenty of clean water and seek medical attention. If ingested, seek medical advice and use appropriate medication under professional guidance.

FAQs of Nano Silicon Powder

1. How much better is the capacity of this material compared to graphite?
Our nano silicon powder has a theoretical specific capacity of ≥ 3400 mAh/g, which is approximately 10 times higher than the theoretical capacity of graphite (372 mAh/g), enabling significant boosts in battery energy density.

2. How do you prevent silicon expansion from damaging the electrode?
The nano-scale particle size is designed to accommodate the volume expansion better than larger particles. Combined with our composite material design (e.g., mixing with carbon), it helps buffer stress and maintain structural integrity, thus improving cycle life.

3. Can the particle size or purity be customized?
Yes. We offer a range of particle sizes, with the standard D50 between 20nm and 100nm and an ultra-fine grade below 10nm. Purity levels can also be customized (≥ 98% or ≥ 99.9%) to meet specific client requirements.

4. What is the recommended way to handle this powder?
The powder is pyrophoric and easily oxidized. It must be handled and stored in an inert atmosphere (e.g., argon or nitrogen glove box). Operators must use personal protective equipment (masks, goggles, gloves) and ensure all procedures minimize exposure to air and moisture.

5. How should the material be packaged and shipped?
The product is shipped in vacuum-sealed packaging or under inert gas to prevent degradation. Please store it immediately upon receipt in the recommended cool, dry, and oxygen-free conditions.