2023-07-18

The effect of battery dedicated graphite as negative electrode on lithium ion power battery fast charge performance

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, tablets, but also in the application of vehicle power supply. A certain breakthrough has been achieved; from the analysis of the future development of lithium -ion batteries: Fast charging lithium -ion batteries will become an important research direction for lithium -ion batteries.In order to improve the fast charging performance of the battery -specific graphite negative material, a series of graphite negative materials made of different coke materials were prepared through experiments. It also performed particle size, polarization, and XRD tests, which made a lithium -ion battery rate charging and rate charging. The cycle test and analyzed the test results.The effect of lithium ion power battery fast charging machine and the effect of battery -specific graphite on the battery

2023-11-02

Optical and mechanical properties of graphene

Graphene has excellent optical properties, with an absorption rate of about 2.3% over a wide wavelength range, making it almost transparent. Within the thickness range of several layers of graphene, with each increase in thickness, the absorption rate increases by 2.3%. Large area graphene films also have excellent optical properties, and their optical properties change with the thickness of graphene. This is an unusual low energy electronic structure possessed by single-layer graphene. At room temperature, a voltage is applied to a double-gate double-layer graphene field-effect transistor, and the bandgap of graphene can be adjusted between 0 and 0.25 eV. When a magnetic field is applied, the optical response of graphene nanoribbons can be tuned to the terahertz range.When the intensity of the incident light exceeds a certain critical value, graphene's absorption reaches saturation. These characteristics allow graphene to be used as a passive mode-locked laser. This unique absorption

2023-02-20

Detailed introduction of graphite board characteristics

The characteristics of graphite boards are widely used in the field of metallurgical industry, chemical factories, and photoelectric catalysts. Therefore, it has excellent conductivity, heat resistance, corrosion resistance, and easy production and processing.1. Graphite plate is resistant to corrosive and soft graphite corrosion. Maintain stable organic chemical reliability for general organic chemical organic solvents, petroleum products, lipids, steams, and acres of substances.2. The variety of graphite boards, everyone knows that graphite belongs to the hexagon structure, and the oxygen atom interval in the plane layer is significantly different from the interval between the oxygen atom in the middle and the middle. Therefore, there are significant various conditions at the level of heat transfer coefficient, thermal conductivity and line expansion coefficient.3. The relative density of graphite boards, narrowing and rebounding, and the significant difference between its soft grap

2023-02-08

Graphite flotation method

Floating is a commonly used and important mineral method. Graphite has good natural floating. Basically, all graphite can be purified by floating methods. In order to protect graphite scales, most of the graphite flotation uses multiple sections of processes. Graphite flotation collecting agents are generally used for kerosene, with a dosage of 100 to 200g/t. The foaming agent is generally used with pine or butad ether, and the amount is 50 to 250g/t.

Graphite board antioxidant solution increases the period of use

After the formation of graphite board, it must be solved by antioxidantization. Generally, antioxidants are used, which is a thick liquid state. The ingredients are heat -resistant nano -ceramic particles. In the natural environment of air oxidation within 1300 ° C in the application temperature of the graphite board, its antioxidant actual effect is very good. After a variety of specifications of graphite boards with pre -immersed in the antioxidant protective film, its liquid can penetrate into the pores of the graphite board. The sexual protective membrane is exactly the reasonable blocking gas of this layer of protective membrane immediately touched with the graphite plate to produce oxidation reactions. Then it can reasonably resist the air oxidation of the graphite board and increase the use period of graphite board.The period of use of graphite boards has continued to increase, and the service life of traditional raw materials has already increased significantly. It is confirme

2023-07-07

The development and application of battery materials

1. Lithium -ion battery materialLithium ion batteries are currently widely used batteries. The positive electrode materials of lithium -ion batteries are usually lithium iron phosphate, lithium manganate, etc., while the negative electrode materials are graphite or silicon -based materials. In recent years, new silicon/graphite composite materials have gradually been applied.2. Calcium ion battery materialCalcium ion batteries have the advantages of low cost and high energy density, and have been studied in recent years. Among them, ingredients, calcium sulfide and other materials are considered to have potential electrode materials that have potential to become calcium ion batteries.3. Fuel cell materialThe fuel cell material refers to the electrodes, electrolytes, catalysts and other materials used to manufacture fuel cells. The important one is the catalyst. In recent years, precious metals have developed rapidly.4. ion ion battery material ion battery is a high -power, long -life

2024-04-02

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

2023-11-08

The difference between expanded graphite and graphene

Graphene and expanded graphite exhibit different behaviors in both material structure and application fields. Expanded graphite can be used as a raw material for the production of graphene. For example, the Hummers method can be used to obtain graphene oxide through ultrasonic expansion of graphite oxide. When the expanded graphite is peeled off into a single piece, it becomes graphene. Peeling off into several layers is a few layers of graphene, and graphene nanosheets can be prepared from about ten to thirty layers.Practical application fields of expanded graphite1. Application of Medical MaterialsMedical dressings made of expanded graphite have many excellent properties and can replace most traditional gauze.2. Application of Military MaterialsCrushing expanded graphite into micropowders has strong scattering and absorption properties for infrared waves, making it an excellent infrared shielding material and playing an important role in modern optoelectronic warfare.3. Application

2023-02-07

Calf mineral development overview

The world's natural graphite output in 2010 was 1.1 million tons. China graphite output is 800,000 tons (crystal graphite and cryptocrystalline graphite), accounting for 73%of the world's output. In the past 30 years, graphite production has ranked first in the world.

2023-06-26

What are some related knowledge points about high-purity graphite?

The application fields of high-purity graphite include metallurgy, military, light industry, electrical battery industry, and fertilizer. Can it be called high-purity graphite? In order to make more people familiar with it, here are some related knowledge points about high-purity graphite for everyone? I hope you can bring some better help when choosing in the future.High purity graphite is widely used in fields such as metallurgy, machinery, environmental protection, chemical industry, electronics, medicine, military industry, and aerospace. It has high purity and high strength graphite properties. In fact, the existence of graphite flakes now makes graphite have excellent lubricity. Generally speaking, the larger the ordinary graphite flakes, the better their lubricity. When we use it, we need everyone to know that the graphite industry technology is still at a relatively low level in the world, and the products are mainly raw materials and initial processing products. Therefore, th