Nano silicon-carbon composite materials

Silicon-based-amorphous carbon: Silicon-based-amorphous carbon silicon-carbon anode materials are made by mixing silicon-based materials and carbon materials by physical or chemical methods, coating carbon on the silicon surface, and then carbonizing at high temperature. Commonly used amorphous carbon precursor materials include resins, organic polymers, sucrose, glucose and citric acid....

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Several Nano silicon-carbon composite materials

Silicon-based-amorphous carbon: Silicon-based-amorphous carbon silicon-carbon anode materials are made by mixing silicon-based materials and carbon materials by physical or chemical methods, coating carbon on the silicon surface, and then carbonizing at high temperature. Commonly used amorphous carbon precursor materials include resins, organic polymers, sucrose, glucose and citric acid.

Silicon-based-amorphous carbon-graphite: Graphite is mixed with amorphous carbon/silicon-based composite materials, and the high conductivity of graphite is used to improve the overall conductivity of the silicon-carbon negative electrode, improve the initial charge and discharge efficiency and cycle stability of the material. This method is also one of the commonly used methods in industry.

Silicon-based-amorphous carbon-graphene: Graphene has good conductivity, mechanical strength and flexibility. A certain proportion of graphene is doped in silicon-carbon materials. On the basis of amorphous carbon buffering silicon expansion, secondary buffering is achieved, and the conductivity of the composite material is improved at the same time, resulting in a negative electrode material with excellent electrochemical performance.

Silicon-based-graphene: Graphene oxide has a flexible structure and rich oxygen-containing functional groups on the surface, which makes it modifiable to a certain extent, such as heteroatoms, covalent, non-covalent functionalization, etc., so that the reduced graphene has good electrochemical activity or other excellent properties. When combined with silicon and the reaction conditions are controlled, a composite material with a three-dimensional cross-linked and porous network structure can be obtained, which plays an important role in improving the electrochemical properties of silicon. Silicon-based-amorphous carbon-carbon nanotubes: Carbon nanotubes (CNTs) have been considered as potential template materials due to their linear morphology, high conductivity and rod-like structure. CNTs can be used to prepare a three-dimensional cross-linked conductive network to ensure the effective transmission of electrons between active substances.

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