Some knowledge about needle coke

Some knowledge about needle coke

Needle coke is a high-quality variety of carbon materials that has been vigorously developed. It has a silver-gray, metallic-luster porous solid appearance. Its structure has obvious flow texture, large and few pores and slightly elliptical. The particles have a large aspect ratio, a fibrous or needle-like texture, and feel lubricated. It is a raw material for producing high-end carbon products such as ultra-high power electrodes, special carbon materials, carbon fibers and their composite materials.

According to the different production raw materials, needle coke can be divided into oil-based needle coke and coal-based needle coke. Needle coke produced with petroleum residue as raw material is oil-based needle coke; needle coke produced with coal tar pitch and its fractions as raw materials is coal-based needle coke.

Needle coke is a high-quality material for manufacturing high-power and ultra-high-power electrodes. Graphite electrodes made of needle coke have the advantages of strong heat shock resistance, high mechanical strength, good oxidation performance, low electrode consumption and high allowable current density.

Needle coke plays a key role in electric furnace steelmaking. It can not only be used as a raw material for manufacturing graphite electrodes, but also help shorten smelting time, reduce electricity consumption, and improve steel production and quality.

Needle coke is an important raw material for manufacturing negative electrode materials for lithium-ion batteries. With the rapid development of the new energy vehicle industry, the demand for high-quality lithium-ion batteries continues to increase, which in turn drives the demand for needle coke.

In summary, needle coke, as an important carbon raw material, has a wide range of uses in multiple industrial fields. With the advancement of science and technology and industrial upgrading, the application prospects of needle coke will be broader.