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Lithium ion battery manufacturers talk about graphene lithium ion battery large modulus output can not be achieved? It is understood that the single-layer rate of products produced by the ten-ton production line of spinning grade single-layer graphene oxide is more than 99%, which can support diversified downstream applications. From the perspective of industry development trend, the entire graphene industry chain has a good development prospect and continuous rising potential. In the future, the consumption of graphene products is expected to rise explosively due to the cost reduction brought by technological progress and mass production of products.

Lithium ion battery manufacturers talk about graphene lithium ion battery large modulus output can not be achieved?

Graphene lithium-ion battery is a strategic frontier and emerging material industry supported by the state. For a long time, high-quality single-layer graphene powder raw materials can not be mass produced, making many excellent properties of graphene unable to fully play out, leading to difficulties in its industrialization.

As a new nano material with the thinnest, the strongest strength and the strongest conductivity and thermal conductivity found at present, graphene is known as "black gold" and is "the king of new materials". Low-cost mass production of graphene is a key link in the development of graphene industry. In recent years, the country has invested heavily in major research institutes.

Graphene can only be widely used in new materials after mass production at low cost. The production line will make contributions to the industrialization of graphene lithium-ion batteries in China. First, it will continue to reduce the cost to less than 10 yuan per gram, and second, it will be rapidly and widely used in the downstream industrial chain.

Characteristics of graphene materials

Graphene is the thinnest and hardest nano material in the world at present. It is almost completely transparent and only absorbs 2.3% of light; The thermal conductivity is up to 5300W/m · K, higher than that of carbon nanotubes and diamonds. Its electron mobility at room temperature is more than 15000cm2/V · s, and higher than that of carbon nanotubes or silicon crystals. Its resistivity is only about 10-6 Ω · cm, lower than that of copper or silver. It is the lowest resistivity material in the world at present.

Because of its extremely low resistivity and the extremely fast movement of electrons, graphene is expected to be used to develop a new generation of electronic components or transistors with thinner and faster conductivity. Because graphene is essentially a transparent and good conductor, it is also suitable for manufacturing transparent touch screens, light panels, and even solar cells.

Another characteristic of graphene lithium ion battery is that it can observe the quantum Hall effect at room temperature. The structure of graphene is very stable. The connection between the carbon atoms in graphene is very flexible. When an external force is applied to graphene, the carbon atom surface will bend and deform, so that the carbon atoms do not have to rearrange to adapt to the external force, so as to keep the structure stable.

This stable lattice structure makes graphene have excellent thermal conductivity. In addition, when electrons in graphene move in the orbit, they will not scatter due to lattice defects or introduction of foreign atoms. Due to the strong inter-atomic utility, even if the surrounding carbon atoms collide, the interference of electrons in graphene is very small at normal temperature.

There are three important ways to produce conventional graphene lithium-ion battery materials. One is to peel graphite, the second is to chemical vapor deposition of natural gas, methane, etc., and the third is graphite oxide reduction method. These methods have problems such as long production cycle, serious environmental pollution, and limited production.

Graphene is regarded as a potential substitute for "silicon" in computer chips. This kind of material with the same thickness as the atomic layer has high conductivity, strong tension, high toughness and high heat dissipation. Researchers said that compared with silicon, it can increase the speed of chips by nearly 1000 times and reduce energy consumption by nearly 50 times.

From 3300 yuan per ton to 1 million yuan per ton, the "leftover" of silicon carbide production company has been transformed into a "black gold" new material - graphene through a series of scientific and technological transformation, realizing 300 times of value-added. Graphene has been discovered for more than ten years, and people are still excited about how to convert it into electronic products. However, people find it challenging to commercialize and mass produce graphene products.

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