Qingdao Zhongdong Graphite Co., Ltd.-Graphite Manufacturer

Our battery specific graphite powder has excellent quality

Production of flake graphite, high-purity flake graphite, graphite powder for mercury free batteries, graphite powder for alkaline batteries, graphite powder for rechargeable batteries, ultrafine high-purity graphite powder (fineness less than or equal to 1 μ m), expanded graphite powder (fineness less than or equal to 5 μ m), and conductive coatings

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Ideal application material for green and environmentally friendly batteries

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Low molybdenum graphite powder

Expanded graphite powder

Graphene Materials

High purity flake graphite

Ultrafine graphite powder

Expandable graphite

Conductive material

PRODUCTS

Production of flake graphite, high-purity flake graphite, graphite powder for mercury-free batteries, graphite powder for alkaline batteries, graphite powder for rechargeable batteries, ultra-fine high-purity graphite powder (up to 1um at the finest), expanded graphite powder (up to 5um at the finest) and conductive coatings

Conductive material

High purity graphite

Expandable graphite

Ultrafine graphite powder

ABOUT US

QINGDAO MIDDLE EAST GRAPHITE CO., LTD.

Hard work, customer satisfaction, innovation and truth-seeking

Qingdao Middle East Graphite Co., Ltd. is located in the hinterland of Jiaodong Peninsula and is a national production base of high-quality flake graphite. The company mainly produces a series of environmentally friendly batteries such as disposable batteries, mercury-free batteries, rechargeable batteries, button cell batteries, special raw materials for positive and negative electrodes, high-purity flake graphite and graphite powder (particle size 300-10000 mesh), expandable graphite (100 times -400 times), expanded graphite powder (particle size 300 mesh -5000 mesh), and conductive graphite emulsion. The company has more than twenty-five years of production history, has a certain foundation and experience, the relevant departments inspection, all technical indicators are better than similar product standards, good quality, completely replace imported graphite powder. Quality certification in 2005. 2020 through high-tech enterprises.

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2004 year

The company was founded in 2004

2005 year

Passed the ISO:9001 quality management system certification

15 Item

Has more than 15 national patents

1000 +

Registered capital 10 million yuan

MIDDLE EAST GRAPHITE

OUR ADVANTAGE

Quality inspector national light industry battery quality supervision and testing center training

Equipment for battery quality supervision and testing center debugging

Excellent product quality and long-term stability provides a reliable guarantee

Products have passed the ISO9001 quality system certification

Blog

11-08

2024

Micromorphology of flake graphite

Flake graphite, like the microscopic art given by nature, its structure is exquisite and wonderful. Under the microscope, we can clearly see its scales-like structure, layered and scattered. These scales are intertwined to form a unique texture, as if they were traces left by the years, telling its history and story. Each scale has its own shape and size, large or small, thin or thick, showing a rich variety. The edges of these scales are not regular, but take on a natural fluency, as if they were leaves swaying gently in the breeze. Their surfaces are not completely smooth, but have subtle bumps and textures, which make flake graphite appear more vivid and real in the microscopic world. The microscopic morphology of flake graphite is not only ornamental, but also has important scientific significance and application value. Its unique structure determines its physical and chemical properties, so it has a wide range of applications in many fields. In the field of batteries, flake graphite is used as an electrode material, and its microscopic morphology directly affects the performance and life of the battery. Those scales that are aligned and uniform in size can provide better conductivity and capacity, thereby improving the efficiency and stability of the battery. in sealing material

10-30

2024

Geological exploration technology of flake graphite veins

In the geological exploration of flake graphite veins, geological mapping is a basic and key technology. Through detailed field observation of the target area, geologists record the type of rock, the distribution of strata, structural characteristics and other information. For flake graphite, it usually occurs in specific metamorphic rock formations, such as gneiss, marble, etc. Through geological mapping, the range of these strata that may contain graphite can be defined to provide direction for subsequent exploration work. For example, during the exploration of flake graphite in a mountainous area, geologists found that a large area of gneiss was exposed, and there were some black bands in the rock, which initially indicated that there might be graphite mineralization in this area. Geophysical exploration methods also play an important role in flake graphite vein exploration. Among them, gravity exploration is one of the commonly used means. Due to the relatively large density of flake graphite, there is a certain density difference with the surrounding rocks. Through the high-precision gravity measuring instrument, we can detect the area of the density anomaly in the underground, and then speculate the possible location of the flake graphite vein. In addition, electrical prospecting is also an effective method. The flake graphite has a certain conductivity, which will affect the underground electric field when the graphite vein exists in the ground. Electrical prospecting is capable of measuring subsurface

10-17

2024

Beneficiation Process and Technology of Flake Graphite

The beneficiation process of flake graphite is like a carefully choreographed dance, and every step is crucial. The first is the crushing link, which crushes the raw ore into a suitable particle size to prepare for the subsequent beneficiation process. Followed by grinding, through fine grinding, the graphite flake fully dissociated, to create conditions for subsequent separation. The separation technology is the core of mineral processing technology. Flotation method is one of the commonly used means of separation, the use of graphite and gangue mineral surface properties of the difference, by adding agents, so that the graphite particles selectively attached to the bubble, so as to achieve separation. In addition, the re-election method also plays a role to a certain extent, using the difference in density between graphite and other minerals for sorting. With the continuous progress of science and technology, mineral processing technology is also constantly innovating and developing. The research and development of new flotation reagents has improved flotation efficiency and selectivity; the application of intelligent mineral processing equipment has made the mineral processing process more accurate and efficient. At the same time, the optimization of mineral processing parameters has further improved the quality and recovery rate of flake graphite. The beneficiation process and technology of flake graphite is not only related to its quality and output, but also affects the development of downstream industries. High-quality flake graphite can provide high-quality raw materials for high-end products such as lithium-ion batteries and graphene, and promote related

08-28

2024

What is the purification process of natural graphite?

In many fields such as batteries, natural graphite is widely used because of its unique performance, but natural graphite ore often contains various impurities, in order to make it play a better role, the purification process is very important. The purification process of natural graphite mainly includes several key steps. The first is flotation purification. The principle of this process is to take advantage of the natural hydrophobicity of graphite. The crushed natural graphite ore is mixed with water to form a slurry, and then a flotation reagent is added. Commonly used flotation reagents are collectors and frothers. The collector can selectively adsorb on the surface of graphite particles to enhance its hydrophobicity, while the foaming agent produces a large number of stable bubbles. Under the stirring and aeration of the flotation equipment, the graphite particles are attached to the bubbles and float to the surface of the pulp, forming a foam layer, while the impurities remain in the pulp and sink. The key technical points are to select the appropriate type and dosage of flotation reagents, and to control the stirring speed, aeration and flotation time of flotation equipment. Appropriate parameters can ensure the sufficient separation of graphite particles from impurities, and improve the flotation efficiency and the recovery rate of graphite. Next is the acid-base method in the chemical purification method. The principle is to use the impurities in natural graphite, such as silica, aluminum oxide, etc., to chemically react with acid and alkali.

08-27

2024

Natural Graphite Towards a Battery-Specific Key Process

Today, with the vigorous development of the battery industry, natural graphite is an important battery material, and it is very important to overcome the key links and technical difficulties of its mining, mineral processing and purification process. The exploitation of natural graphite is the basic link of the whole process. The key is to accurately find high quality graphite ore source. This requires professional geological exploration technology and experienced exploration team. In the mining process, appropriate mining methods, such as open pit mining or underground mining, must be used, while ensuring the safety of the mining process and minimal impact on the environment. One of the technical difficulties lies in how to efficiently mine graphite ore under complex geological conditions while avoiding damage to the surrounding ecological environment. For example, when mining in some mountainous areas, potential risks such as landslides and soil erosion need to be addressed. In addition, the selection and maintenance of mining equipment is also key. Efficient and reliable mining equipment can improve mining efficiency and ore quality. Mineral processing is an important step to determine the quality of natural graphite. First of all, it is necessary to carry out preliminary crushing and screening of the mined ore to decompose the large pieces of ore into the appropriate particle size. Then, according to the difference of physical and chemical properties between graphite and other impurity minerals, different beneficiation methods are adopted. Common beneficiation methods include flotation,

08-16

2024

What is the quantitative relationship between the compaction density of the battery-specific graphite and the energy density of the battery?

In today's era of rapid development of science and technology, as the core power source of various electronic devices, the performance of the battery directly affects the use experience and endurance of the device. As one of the key materials for battery, the relationship between the compaction density and the energy density of the battery has attracted much attention. First, we need to understand what compaction density is. The compaction density of graphite for battery refers to the mass of graphite material per unit volume under certain pressure. Simply put, the more tightly the graphite is compressed, the greater the density of the compaction. The battery energy density is a key indicator to measure the battery's ability to store energy, usually expressed in terms of the electrical energy stored per unit volume or unit mass. How does the compacted density of graphite for batteries affect the energy density of batteries? From the perspective of physical structure, when the compacted density of graphite increases, the gap between its particles decreases, which makes the electrode structure inside the battery more compact. During the charging and discharging of the battery, the transmission path of electrons and ions is shortened, and the transmission efficiency is improved. This is just like on the highway, the distance between vehicles is reduced, and the running speed and flow of traffic can be improved. The experimental data show that in a certain range, with the increase of graphite compaction density,

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Contact: Liu Hongfa
Contact Phone:+86-532-86387258
Mobile:+86-13805428311
Fax: 0532-86387258
Company address: Qingdao. Pingdu Grange Resident Kone Road
Address:info@zhongdong-graphite.com

What products we can offer

Low molybdenum graphite powder

High carbon flake graphite

Ultrafine graphite powder

Expanded graphite powder

High purity flake graphite

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