2023-04-14

Can expand graphite development

Graphite crystals have a hexagonal layer -shaped structure composed of carbon elements. The carbon atoms on the layer of flat plane are combined with powerful covalent bonds. Therefore, under appropriate conditions, a variety of chemicals such as acid, alkaline metals, and salt can be inserted into the graphite layer, and a new chemical phase -Graphite Intercities on compounds (referred to GIC). When this intervertebral compound is heated to an appropriate temperature, it can quickly decompose instantly, generating a large amount of gas, so that the graphite is expanded into a new substance of worm -shaped, that is, the expansion of the intervertebral compound of the expansion. graphite.The expansion graphite was first discovered by the German SChaufautl. In 1841, Schaufautl soaked natural graphite in a mixture of thick HNO3 and thick H2SO4. In 1963, he first applied for expanding graphite manufacturing technology patents and industrialized production in 1968.The above is some of the

2023-06-20

The effect of battery specific graphite as negative electrode on the fast charging performance of lithium-ion power batteries

Since its inception, lithium-ion batteries have been widely used in multiple fields. At present, lithium-ion batteries are not only widely used in electronic products such as mobile phones, digital cameras, and tablets, but also in the application of car power supplies. Achieved certain breakthroughs; From the analysis of market economic demand for the future development of lithium-ion batteries, it can be seen that fast charging lithium-ion batteries will become an important research direction for lithium-ion batteries.In order to improve the fast charging performance of graphite negative electrode materials for batteries, a series of graphite negative electrode materials made of different coke materials were prepared through experiments. And particle size, polarization, and XRD tests were conducted, resulting in a lithium ion battery charge rate and charge rate. Loop testing and analysis of test results.Analysis of the fast charging mechanism of lithium-ion power batteries and the i

2023-12-04

Information related to flake graphite?

The development prospects of the flake graphite industry are very promising because it brings many benefits to enterprises during use, so it is highly favored by customers. In order to make everyone more familiar with it, let's now talk about the relevant information of flake graphite? I hope to bring help to more people.Nowadays, many people are not familiar with some basic information about flake graphite. Therefore, as manufacturers, it is necessary for us to briefly explain that flake graphite is a natural crystalline graphite, shaped like fish phosphorus, belonging to the hexagonal crystal system with a layered structure. Now it is also a natural solid lubricant with a layered structure, abundant in resources, and low in price. This product has the characteristics of complete crystallization, good toughness of thin plates, excellent physical and chemical properties, thermal conductivity, conductivity, thermal shock resistance, corrosion resistance, etc. It is widely used in refra

2023-08-21

The main production process of graphite electrodes

(1) Calcination. Both petroleum coke and asphalt coke need to be calcined at a temperature of 1350 ℃ to fully remove the volatile matter contained in the carbonaceous raw material and improve the true density, mechanical strength, and conductivity of the coke.(2) Crushing, screening, and batching. Crush and screen the calcined carbon raw materials into designated size aggregate particles, grind some coke into fine powder, weigh according to the formula, and aggregate to form a dry mixture of various particles.(3) Mix and knead. Mix and knead the dry mixture of various particles with a certain amount of binder in a heating state to form a plastic paste.(4) Forming. Under external pressure (extrusion molding) or high-frequency vibration (vibration molding), the paste is pressed into a certain shape and high density of raw electrodes.(5) Roasting. Place the raw electrode in a specially designed roasting furnace, and use metallurgical coke powder to fill and cover the raw electrode. At a

2023-12-12

Graphite heater

Sustainable development and utilization of graphite resources

With the wide application of graphite in various fields, the sustainable development and utilization of its resources has become the focus of attention. In order to realize the sustainable use of graphite resources, we need to pay attention to environmental protection and ecological balance in the mining process.At the same time, we should also actively develop new graphite extraction and processing technolo

2023-02-22

What are the scope of application of graphite anode?

High -purity graphite board is made of high -quality high -purity graphite. High -purity graphite refers to the carbon content of graphite more than 99.99%. High -purity graphite producers use oil coke as raw materials. Production, after the production of rigorous high -purity graphite processing process. High -purity graphite has excellent characteristics such as good conductivity, heat resistance, acid suppression, alkali etching, and easy production and processing. High -purity graphite products are generally used to refractor and thermal insulation materials and building coatings in the metallurgical industry. , Pencil core in the light industry, motor carbon brush produced by the electrical equipment industry, electrical grade of electricity production produced by the rechargeable battery industry, and the production of metal catalysts in the organic fertilizer industry.The anode oxygen graphite board is also called graphite positive film, graphite positive rod, which has high -q

2023-02-22

Prevention and gray removal of graphite production and processing workshop

The anti -pollution -proof of graphite production and processing workshop is stable in the physical properties of ash graphite and no organic chemical corrosion. Therefore, the removal of the ash in the workshop does not need to consider anti -virus and corrosion resistance, mainly to reduce the concentration value of smoke and dust in the air and collect tiny smoke.First, to ensure the sealing of graphite production and processing workshop, and prevent environmental pollution from smoke and dust. Graphite production and processing workshop air has graphite smoke dust. Graphite smoke should be collected and purified according to the dust removal equipment before removing the workshop.In the secondary, graphite production and processing should be based on the concentration value of the smoke and dust caused by the system. Different CNC lathes, different concentrations of production and processing processes are different. For example, the concentration value of the smoke and dust concen

2023-12-15

Antioxidant treatment methods for graphite materials

As is well known, during the manufacturing process of graphite products, the thermal decomposition and condensation of organic carbon based raw materials form porous artificial graphite materials, with a general porosity of around 20% to 30%. Most of them are open pores, which increases the diffusion speed and depth of oxidizing gases, and deteriorates their antioxidant pr

2023-11-14

Several physical and chemical indicators that need to be understood when selecting graphite materials

Graphite is an allotrope of elemental carbon, where each carbon atom is surrounded by three other carbon atoms (arranged in a honeycomb like pattern with multiple hexagons) that are covalently bonded to form covalent molecules. Due to its excellent properties, graphite is used to make many materials. Below are several physical and chemical indicators that need to be understood when selecting graphite materials:1. Average particle diameter of the materialThe average particle diameter of a material directly affects its discharge condition. The smaller the average particle size of the material, the more uniform the discharge of the material, the more stable the discharge condition, and the better the surface quality. For forging and die-casting molds with low surface and precision requirements, it is usually recommended to use materials with coarser particles; For electronic molds with high surface and precision requirements, it is recommended to use an average particle size of 4 μ Mater