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Nano silicon anode material Silicon powder CAS 7440-21-3
  • Nano silicon anode material Silicon powder CAS 7440-21-3

Nano silicon anode material Silicon powder CAS 7440-21-3

Silicon anode material is becoming the most preferred choice for battery companies and lithium battery material manufacturers to improve anodes due to their abundant reserves and ultra-high theoretical specific capacity.
Particle Size: 900nm
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Overview of nano silicon anode material silicon powder:

Silicon is the most promising electrode material for next-generation lithium-ion batteries, with a specific capacity (3600 mAh/g) about 10 times higher than graphite (372 mAh/g). However, due to the significant expansion of the material (more than 300%) in the loaded (lithiation) state and the instability of the solid electrolyte interface layer (SEI), its use is severely restricted. The poor mechanical stability and chemical passivation properties of silicon electrodes make the cycle performance of silicon electrodes far unable to meet the requirements of battery systems, and stimulate a lot of research and suggestions to circumvent these limitations.

During the lithium insertion process, the volume of silicon changes so much (about 400%) that the silicon cracks and falls off the collector, causing the prototype lithium-silicon battery to lose most of its capacity in less than 10 charge and discharge cycles. The key to the success of large-capacity lithium-ion batteries is to solve the capacity and stability problems of lithium-ion silicon.

Silicon anode materials have shown great potential in improving the efficiency and energy storage capacity of lithium-ion batteries. Until recently, their main disadvantage was surface passivation by oxidation, a process that increases impedance and reduces the circularity of the anode. Our high-purity silicon anode materials can achieve high specific capacity without significantly affecting cycle life.

Nano silicon anode material silicon powder application:

What is the scope of application of nano-silicon anode material silicon powder?

Silicon is the most promising kind of anode material in the next generation of lithium-ion batteries. Nano silicon anode materials are used in cylindrical, flexible and aluminum shell batteries. Our silicon anode powder can be dispersed in the battery solvent while preventing agglomeration. They are designed to stick seamlessly with other battery materials and produce uniform and stable coatings. Therefore, they are suitable for a range of applications, including lithium-ion batteries, photovoltaics, semiconductors, and electronics.

The price of nano silicon anode material silicon powder:

The price of nano-silicon anode material silicon powder will vary randomly with the production cost, transportation cost, international situation, exchange rate and market supply and demand of nano-silicon anode material silicon powder products. Tanki New Materials Co., Ltd. aims to help various industries and chemical wholesalers find high-quality, low-cost nanomaterials and chemicals by providing a full set of customized services. If you are looking for nano silicon anode material silicon powder products, please feel free to send an inquiry to get the latest price of nano silicon anode material silicon powder products.

Suppliers of nano silicon anode material silicon powder:

As a global supplier of silicon powder, which is a nano-silicon anode material, Tanki New Materials Co., Ltd. has extensive experience in the performance, application and cost-effective manufacturing of advanced engineering materials. The company has successfully developed a series of powder materials (including oxides, carbides, nitrides, single metals, etc.), high-purity targets, functional ceramics and structural devices, and provides OEM services.


Hot Tags: Nano silicon anode material Silicon powder CAS 7440-21-3, manufacturers, suppliers, factory, Customized

Silicon Si powder Properties

Other NamesSilicon Si powder, Si, Si powder, nano silicon powder
CAS No.7440-21-3
Compound FormulaSi
Molecular Weight28.08 g/mol
Appearancebrown, or silvery
Melting Point1414°C 
Boiling Point2900°C 
Density2330kg/cm3
Purity>99.95%
Electrical Resistivity3-4 microhm-cm @ 0 °C
Poisson's Ratio0.064 - 0.28
Specific Heat0.168 Cal/g/K @ 25 °C
Thermal Conductivity1.49 W/cm/K @ 298.2 K
Thermal Expansion (25 °C) 2.6 µm·m-1·K-1
Young's Modulus51-80 GPa
Exact MassN/A
Monoisotopic MassN/A




Silicon Si powder Health & Safety Information

Safety WarningWarning
Hazard StatementsH315-H319-H335
Hazard CodesH228
Risk Codes11
Safety Statements16-33-36
RTECS NumberVW0400000
Transport InformationUN 1346 4.1/PG 3
WGK Germany2


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Trusted Global Chemical Products Manufacuturer

Tanki New Materials Co.Ltd Aims to help All industries and Chemical Wholesalers to find high quality, cheap price nano materials and chemicals by providing turn-key customize manufacturing services.

As a trust-worthy global nano-materials and chemicals manufacturer, Tanki New Materials Co.Ltd has been successfully supplying big and small brands with customized nano materials and chemical products in bulk or small quantities.

Tanki New Materials Co.Ltd has rich experiences in the properties, applications, and cost-effective manufacturing of advanced and engineered materials. The company has successfully developed a series of powder materials (including oxides, carbides, nitrides, single metal, etc.), high-purity targets, functional ceramics, and structural devices. OEM service is available.

Our innovative, high-performance materials are widely used in many industries, including but not limited to the automotive, electrical, electronics, information technology, petrochemical, oil, ceramics, paint, metallurgy, solar energy, and catalysis.

Based in the center of China, the company has rich resources and chemical product manufacuturing chains to make sure your cost remain as low as your specifications demand.

The company provides following products such as providing super high quality chemicals and Nano materials such as graphite powder, boron powder , zinc sulfide , nitride powder, Calcium nitride, Ca3N2, 3D printing powder, and so on.

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