Lithium Battery Anode

Anode Material Carbon-coated Silicon Powder

Item No.: Tr-Carbon-coated silicon
The coated silicon-carbon anode material is carbon coated with silicon materials with different nanostructures. The carbon layer mainly serves as a buffer layer to reduce the volume effect and enhance conductivity.
Purity: Silicon-95%, Carbon-5%
Carbon-coated Silicon Powder Properties
What is Anode Material Carbon-coated Silicon Powder:

Carbon-coated silicon anode material is a new type of battery material widely used in batteries, energy storage, and conversion due to its advantages of high energy density, good electrochemical properties, and long life.

The coated type silicon-carbon anode material is usually carbon coated with silicon materials of different nanostructures. This material provides reversible capacity with silicon as the main body, and the carbon layer is mainly used as a buffer layer to reduce the volume effect and enhance the electrical conductivity. The carbon coating is usually amorphous carbon. Silicon anode materials have problems such as low cycle life, large volume change, and continuous generation of SEI film, and silicon carbon anode materials can effectively improve these problems so that silicon-carbon anode materials will be the focus of the development of cathode materials in the future. A complete surface coating is important to prevent silicon from contact with the electrolyte, resulting in the depletion of a thick SEI film. The design of the microstructure is also important to maintain electron contact, ion channels, and volume expansion during the cycle.

The mechanism of carbon coating is that the bulk expansion of Si is shared by graphite and amorphous coating, which avoids the demonization of anode material due to huge volume change and stress in intercalation and dilithium. 

The functions of carbon coating are: 

(1) Constraints and buffers the volumetric expansion of the active center; 

(2) prevents the aggregation of nano-active particles; 

(3) prevents the electrolyte from permeating to the center to maintain a stable interface and SEI 

(4) Silicon materials contribute high specific capacity, and carbon materials contribute high conductivity.


TRUNNANO is a trusted global Anode Material Carbon-coated Silicon Powder supplier. Feel free to inquire about the latest Anode Material Carbon-coated Silicon Powder price at any time.


Performance of Anode Material Carbon-coated Silicon Powder :

Carbon-coated silicon powder has high capacity, high first effect, long cycle, low expansion, excellent processing performance, and rate performance, and it matches well with the existing graphite anode system.


Characteristics of carbon-coated silicon anode materials

Carbon layer structure: Carbon-coated silicon anode material comprises silicon particles and carbon layers. The carbon layer has good electrical conductivity and chemical stability, which can effectively improve silicon's electrochemical performance and stability. At the same time, the carbon layer can also be used as a dispersing medium to effectively alleviate the agglomeration phenomenon between the silicon particles and further improve the material's overall performance.

High energy density: Carbon-coated silicon anode materials have a high theoretical specific capacity of up to 4200mAh/g, which is much higher than the theoretical specific capacity of traditional graphite anode materials. This makes the carbon-covered silicon anode materials have a higher energy density, providing faster charging and discharging speed and longer battery life.

Cycling stability: Carbon-coated silicon anode materials have good cycling stability, small volume changes during charging and discharging, stable structure, and the ability to maintain a long cycle life. This is due to the buffering effect of the carbon layer, which can effectively alleviate the volume change of silicon in the process of charging and discharging and maintain the overall structural stability of the material.

Technical Parameter of Anode Material Carbon-coated Silicon Powder :
Product Name SSA Particle Size First Discharge Capacity First Charge Capacity First Discharge Efficiency
 Carbon-coated Silicon  23.5 m2/g 1.59um 2474.5 mAH/g 2173.3 mAH/g 87.8%
How is Anode Material Carbon-coated Silicon Powder Produced? 
The preparation processes of silicon-carbon anode material include ball milling, high-temperature cracking, chemical vapor precipitation, sputtering deposition and evaporation. Therefore, a variety of silicon-carbon material structures are made, but they are all designed in line with the idea of increasing the capacity of lithium batteries and reducing the disadvantages of silicon particle expansion and crushing.

Applications of Anode Material Carbon-coated Silicon Powder:

Carbon-coated silicon powder is used in cylindrical, flexible packaging and aluminum shell batteries.As a new type of anode material for lithium-ion batteries, silicon carbon anode can play a more significant role in improving the energy density of batteries than the current graphite anode. However, due to its high barriers in the application, it is still in the early stage of industrialization. The application prospect of silicon-carbon anode material is getting brighter and brighter.

Lithium battery anode material: Carbon-coated silicon anode material is an important choice in the new generation of lithium battery anode materials. Its high energy density and good cycling stability give the battery a longer life and higher energy output. However, carbon-coated silicon anode materials also have some problems, such as the volume effect, which limits its application in commercialized batteries to a certain extent.

Supercapacitors: Carbon-coated silicon anode materials can also be used to manufacture supercapacitors. Its high specific surface area and good electrical conductivity allow supercapacitors to have higher energy density and faster charging and discharging speeds.

Energy storage and conversion: Carbon-coated silicon anode materials can also be used in other energy storage and conversion fields. For example, in fuel cells, carbon-coated silicon anode materials can be used as catalyst carriers to improve the activity and stability of the catalyst. In addition, in solar cells, carbon-coated silicon anode materials can also be used as a carrier for light absorbers to improve the photoelectric conversion efficiency of solar cells.

Storage Condition of Anode Material Carbon-coated Silicon Powder :

The damp reunion will affect carbon-coated silicon powder dispersion performance and use effects. Therefore, it should be sealed in vacuum packing and stored in a cool and dry room; the carbon-coated silicon powder can not be exposed to air. In addition, the powder should be avoided under stress.


Packing & Shipping of Anode Material Carbon-coated Silicon Powder :

We have many kinds of packing, depending on the carbon-coated silicon powder quantity.

Carbon-coated silicon powder packing: 1kg/bag, 5kg/bag, 25kg/barrel, or as requested.

Carbon-coated silicon powder shipping: could be shipped out by sea, by air, or by express as soon as possible once payment receipt.

Anode Material Carbon-coated Silicon Powder supplier

Luoyang Tongrun Nano Technology Co. Ltd. (TRUNNANO) is a trusted global chemical material supplier & manufacturer with over 12 years of experience in providing super high-quality chemicals and Nanomaterials, including boride powder, nitride powder, graphite powder, sulfide powder, 3D printing powder, etc.

If you are looking for high-quality Anode Material Carbon-coated Silicon Powder, please feel free to contact us and send an inquiry. ([email protected]).


Carbon-coated Silicon Powder Properties

Other Names Carbon-coated Silicon 
Compound Formula N/A
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Purity Silicon-95%, Carbon-5%
Particle Size 1.59um
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Thermal Conductivity N/A
Thermal Expansion N/A
Young's Modulus N/A
Exact Mass N/A
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Carbon-coated Silicon Powder Health & Safety Information

Safety Warning N/A
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WGK Germany N/A
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