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
About Anode Material Carbon-coated Silicon Powder:
The coated type silicon-carbon anode material is usually carbon coated with silicon materials of different nanostructures. This kind of 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, continuous generation of SEI film, and silicon carbon anode materials can effectively improve these problems, so 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 pulmonization of anode material due to huge volume change and stress in the process of intercalation and dilithium. The functions of carbon coating are: (1) Constraints and buffers the volumetric expansion of the active center; (2) prevents the agglomeration 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 send an inquiry about the latest price of Anode Material Carbon-coated Silicon Powder at any time.

Performance of Anode Material Carbon-coated Silicon Powder :
Carbon-coated silicon powder has the characteristics of 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.

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 batteries, flexible packaging batteries 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. At present, the application prospect of silicon-carbon anode material is getting brighter and brighter.

Storage Condition of Anode Material Carbon-coated Silicon Powder :

The damp reunion will affect carbon-coated silicon powder dispersion performance and using 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 exposure to air. In addition, the powder should be avoided under stress.

Packing & Shipping of Anode Material Carbon-coated Silicon Powder :
We have many different kinds of packing which depend on the carbon-coated silicon powder quantity.
Carbon-coated silicon powder packing: 1kg/bag or 5kg/bag, 25kg/barrel, or as your request.
Carbon-coated silicon powder shipping: could be shipped out by sea, by air, by express as soon as possible once payment receipt.


Carbon-coated Silicon Powder Properties

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

Safety Warning N/A
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RTECS Number N/A
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WGK Germany N/A
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