2022-11-19
2023-07-21Because the battery -specific graphene has the above nano -scale effect, good conductivity and excellent mechanical properties, it is widely studied by scientists from all over the world and produced the concept of "graphene lithium battery". Battery?1. anode materialDue to its unique two -dimensional structure, excellent electronic transmission ability, and large surface area of battery -specific graphene, it has a huge potential to replace graphite to become a new generation of lithium -ion battery negative materials. The lithium storage mechanism of graphene is similar to other carbon materials. Both sides of the elene can store lithium ions. At the same time, graphene can also store lithium because of the presence of folds. Therefore, theoretically its capacity may be twice the graphite, which is higher than 744mAh/g.In addition, graphene is mostly micr -nano -size, far less than block graphite, which makes the diffusion path of lithium ions shorter, and the laminar spac
2023-07-21Battery -specific graphite has good chemical stability. The specially treated graphite has the characteristics of corrosion resistance, good thermal conductivity, and low penetration. Therefore, it is widely used in making heat exchangers, reaction tanks, condenser, combustion tower, absorbing tower, absorbing tower , Cooler, heater, filter, and pump equipment, are widely used in industrial departments such as petrochemical, wet metallurgical, acid -base production, synthetic fiber, papermaking, etc., which can save a large number of metal materials.It is a material for casting, casting, suppression, and high temperature metallurgy. Because of its low heat expansion coefficient, it is resistant to cold and hot, it can be used as a casting mold for glassware. After the graphite is used, the black metal can get accurate size, smooth surface, high finished product rate Casting, can be used without processing or machining, saving a lot of metals. In the powder metallurgical process that p
2023-07-21There is no doubt that the performance of the battery -specific graphene is unquestionable, but is it necessarily suitable for lithium ion batteries? According to my clumsy opinion, graphene is not suitable for lithium ion batteries, please consider the following:1. Cost problemThe cost of using graphene as a conductive agent is much higher than that of ordinary charcoal black. The cost of lithium battery is the key control factor. Without reducing the cost of raw materials, even if the electrical performance of graphene is good, battery manufacturers cannot afford a few tons per ton. 100,000 cost consumption.2. Process problemsThe technical problems brought by the chip structure of battery -specific graphene are mainly preparation of electrode paste. The electrode paste requires good liquidity, decentralization and appropriate viscosity. The dispersing of graphene tablets in the electrode paste is a difficult problem, especially for especially The electrode paste cannot be decentrali
2023-07-20The applicable areas of high pure graphite include metallurgical, military, light industry, electrical battery industry, and fertilizer. It can be called high -purity graphite. In order to make more people familiar with it, here is some of the relevant knowledge points of Gao Chun graphite? I hope you can bring some better ones when you see it. Help.High -pure graphite is widely used in metallurgy, machinery, environmental protection, chemical, electronics, medicine, military, military and aerospace and other fields. Has high -purity, high -intensity graphite performance. In fact, the existence of graphite scales now makes graphite have excellent lubrication. Generally speaking, the larger the ordinary graphite scales, the better the lubricity. When we use it, we need to know that the graphite industry technology is still at a low level in the world. The products are mainly raw materials and initial processing products. Therefore, the high impurities of some products have limited its
2023-07-20High -pure graphite is widely used in various industries, so its purpose is definitely wide. In fact, this high -purity graphite mainly refers to the carbon content of graphite> 99.99%, and it is also widely used in the advanced refractory material and coatings of the metallurgical industry, the stabilizer of the military fireworks, the pencil core of the light industry, the carbon brush of the electrical industry, the battery, and the battery Industrial electrodes, catalyst additives in the fertilizer industry. Of course, the scale of the product is complete, thin and tough, with excellent physical and chemical properties. It has good thermal conductivity, temperature resistance, self -lubricating, electrical conductivity, heat shock resistance, corrosion resistance and other properties. In addition, the high -purity graphite (also known as sheet high -thermal carbon powder) mentioned today has high strength. Of course, in addition, it also has the advantages of good heat shock re
2023-07-19Simplified graphite is an inorganic non -metallic material. High -pure graphite is a common advantage in processing and manufacturing structure casting molds, exercise of high -pure metal, sintering mold, metal coating, and transmitting electron tube. High pure graphite has corrosion resistance, the substrate is uniform and small, delaying the degree of corrosion of the product. In addition, it also has high thermality. High -content fixed carbon ensures good thermal conductivity, shorten the dissolution time, and significantly reduces energy consumption. In particular, its quality stability, the manufacturing technology and quality assurance system of high -voltage molding methods fully ensure quality stability. If graphite molds and graphite processing products of various shapes and uses can be achieved in the metallurgical industry, graphite with accuracy and roughness can be processed. High -pure graphite is specially designed according to the conditions of rapid heating and fast
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