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    Characteristics and application fields of high purity graphite

    High-purity graphite refers to the carbon content of graphite>99.99%, which is widely used in advanced refractory materials and coatings in the metallurgical industry, stabilizers of fireworks materials in the military industry, pencil leads in the light industry, carbon brushes in the electrical industry, electrodes in the battery industry, Catalyst additives for the fertilizer industry, etc.

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    The advantages of lithium-ion batteries

    1. High specific energy, the ratio of energy to mass of lithium-ion battery can reach 120~200Wh/kg, which is the highest among current batteries. Since metallic lithium is very light, it has the most ...

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    What is the effect of graphene on the body

    Graphene is used to accelerate the osteogenic differentiation of human bone marrow mesenchymal stem cells, and it is also used to make biosensors for epitaxial graphene on silicon carbide.

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    The mechanism of graphite lubrication

    Graphite has a hexagonal crystal structure. Because the bonding force between the surfaces parallel to the foundation surface is weak, these crystals are easy to shear between the surfaces, that is, the friction force is small, and at the same time, it can support the load perpendicular to the foundation surface, so the bearing capacity is strong, and the friction coefficient is small. It has the best properties as a solid lubricant.

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    Lithium-ion battery anode material PK: graphite vs silicon material

    Graphite materials are the veterans of the lithium-ion battery industry and have many excellent qualities. However, with the emergence of a number of high-performance anode materials in recent years, it has threatened the status of graphite materials and performed a drama of falling in love and killing each other. As an outstanding representative of new materials, silicon anode material is really unreasonable with graphite.

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    Why can graphite be used as a pencil?

    The main components of the lead core of the pencil are graphite and clay. According to the national standard, pencils are divided into 18 models according to the graphite concentration. In the current standardized test in our country, the computer can only read the pencil handwriting with a lead concentration of 2B. Too thick or too light will cause computer failure or error in reading.

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    What is a graphite electrode?

    Graphite electrode refers to a kind of resistant material made by using petroleum coke and pitch coke as aggregate and coal pitch as binder through raw material calcination, crushing and grinding, batching, kneading, molding, roasting, impregnation, graphitization and mechanical processing. High-temperature graphite conductive material, called artificial graphite electrode (referred to as graphite electrode), to distinguish it from natural graphite electrodes prepared from natural graphite.

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    What is the use of graphite paper?

    The main purpose of graphite paper application technology: used in notebook computers, flat panel displays, digital cameras, mobile phones and personal assistant devices.

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    What is graphite lubricant?

    Graphite has a flaky crystal structure with good lubricating properties. It also has good electrical conductivity, thermal conductivity, wear resistance, pressure resistance, temperature resistance (temperature up to 450°C), and chemical stability. Therefore, graphite is widely used in the machinery industry to make various lubricants.

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    The development history of graphene materials

    In fact, graphene originally exists in nature, but it is difficult to peel off a single-layer structure. Graphene layers are stacked to form graphite, and 1 mm thick graphite contains about 3 million layers of graphene. A lightly stroked pencil on the paper may leave traces of several layers or even just one layer of graphene.

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    What are the new materials for lithium batteries?

    Continuously improving the overall performance of lithium batteries is the only direction for the development of lithium batteries, and the main method to improve the performance of lithium batteries is to continuously develop and innovate lithium battery materials. The following introduces the basic situation of new materials that can improve the performance of lithium batteries.

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    Advantages and disadvantages of silicon anode battery materials

    The silicon-based anode has great potential. From the comparison of the performance of different anode materials, the mass/volume ratio of silicon-based anode is huge. The theoretical mass specific capacity of crystalline silicon is about 4200mAh/g, while graphite is only 372 mAh/g, which is about 11 times that of graphite. Even the silicon oxide material has a theoretical mass specific capacity of 2600mAh/g, which is about 7 times that of graphite. From this point of view, silicon-based materials are the most promising anode materials for next-generation lithium-ion batteries.