2022-11-19
2023-06-12In the current technological era, research and development in the field of battery materials are in a stage of rapid development. With the increasing demand from people, the demand for more efficient, environmentally friendly, and safe battery materials is also becoming increasingly urgent. Graphene, as an important new material, is receiving more and more attention and research. This article will discuss the application prospect of Graphene in the field of battery materials.Graphene is a single-layer honeycomb structure material composed of carbon atoms, which has excellent physical and chemical properties. It has outstanding performance in terms of conductivity, thermal conductivity, mechanical strength, and other aspects. These excellent properties provide a wide range of possibilities for the application of Graphene in the field of battery materials.First, Graphene can be used as the electrode material of batteries. Compared with traditional electrode materials, Graphene has highe
2023-06-07Graphite's process characteristics are mainly determined by its crystallization form. Crystal forms of graphite minerals have different industrial values and uses. Industry, according to the different crystals, divide natural graphite into three categories.1. Deep crystalline graphiteThe dense crystal graphite is also called block -like graphite. Such graphite crystals are obviously visible to the naked eye. The diameter of the particles is greater than 0.1 mm, which is concentrated in 0.1-1m/g than the surface area. This: Graphite is characterized by high quality. Generally, carbon content is 60-65%, and sometimes 80-98%, but its plasticity and slipperyability are not as good as scales.2. Scales graphiteGraphite crystals are scales; this is made of deterioration under high -intensity pressure, with large scales and fine scales. The characteristics of such graphite ore are not high, generally between 2 and 3%, or 10 to 25%. It is one of the best ore in nature. The floating, lubricabil
2023-06-07Due to its special structure, graphite has the following special nature:1. High temperature resistance: The melting point of graphite is 3850 ± 50 ° C, and the boiling point is 4250 ° C. Even if it is burned by ultra -high temperature arc, the loss of weight is small and the thermal expansion coefficient is small. Graphite strength is strengthened with the temperature, and at 2000 ° C, the graphite strength doubles.2. Conductive and thermal conductivity: The conductivity of graphite is 100 times higher than that of ordinary non -metal ore. Thermal conductivity exceeds metal materials such as steel, iron, and lead. The thermal conductivity decreases with the temperature increase, and even at a very high temperature, the graphite becomes the heating body. Graphite can conduct electricity because each carbon atom and other carbon atoms in the graphite only form three co -price bonds, and each carbon atom still retains a free electron to transmit charge.3. Lubrication: The lubrication per
2023-06-07The chemical properties of single -mass carbon at room temperature are relatively stable, insoluble in water, dilute acid, dilute alkali and organic solvents; burning with oxygen at different high temperatures to generate carbon dioxide or carbon dioxide; Below, single -quality carbon is more likely to be oxidized by acid; at high temperature, carbon can also react with many metals to generate metal carbides. Carbon is restored and can smell metal at high temperature.Graphite is soft, black and gray; it is greasy and can contaminate paper. The hardness is 1-2, and the hardness can be increased to 3 to 5 along the vertical direction. The proportion is 1.9 ～ 2.3. The surface area is concentrated at 1-20m2/g. Under the isolation of oxygen conditions, its melting point is above 3000 ° C. It is one of the most temperature-resistant minerals. It can conduct electricity and heat conduction.There is no pure graphite in nature, which often contains impurities such as SIO2, Al2O3, Feo, CAO, P2O
2023-06-07Graphite is a carbon element crystalline mineral, and its crystalline grid is hexagonal layered structure. The distance between each network layer is 3.40å, and the distance between the carbon atom in the same network layer is 1.42å. It belongs to the hexagonal crystal system, with a complete layer -like lapse. The molecular keys are mainly attractive to the molecular keys, so its natural floatingability is very good. Graphite and diamond, carbon 60, and carbon nanotubes are both the monomer of carbon, and they are similar aliens.Six carbon atoms form a rumor-shaped ring on the same plane, stretching into a layer structure. Here the key length of the C-C key is 142pm, which is exactly the length of the keys of the atomic crystal. Therefore It is an atomic crystal. There is a P orbit left in the carbon atoms of the same plane, which overlap each other. Electronics is more free, which is equivalent to free electronics in metal, so graphite can conduct heat and conductivity, which is ex
2023-06-07Graphite dust is a powder made of graphite with metallic luster.Graphite is a four -layer hexagonal laminar -shaped crystal carbon structure, with silver gray and metallic luster. Its main ingredients are fixed carbon, and can also contain a small amount of silica with a small binding or free of free, as well as elements such as lead, calcium, magnesium, iron, and other elements. Can be divided into natural graphite and artificial graphite. In the natural graphite, the naked eye can see the crystalline scale -like graphite, and the crystals that are not visible to the crystal of the dense lump are called non -styling graphite. Artificial graphite is made of coal, coke, asphalt, etc., and is made of a 3000 ° C high -temperature electric furnace. It is almost pure crystalline carbon, which is almost free of free silica compared with natural leggings.Graphite is a widely used non -metallic mineral. It has high temperature resistance, heat conduction, conductivity, lubrication, plastic an
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