Why is it better to use carbon nanotubes for lithium ion battery conductive agents?

It is understood that the commonly used lithium ion battery conductive agents are carbon black, conductive graphite, carbon nanotubes, graphene and the like. Among them, carbon black represented by Super-P-Li, Keqin black and acetylene black is a particulate conductive agent, and a point contact is formed between the active materials. The carbon nanotubes and the active material form a line contact, which can further improve the electrical conductivity, and the added amount is 60%-70% less than the conventional carbon black conductive agent, and the amount of the adhesive can be reduced.

At the same time, the good thermal conductivity of carbon nanotubes is also conducive to heat dissipation during battery charging and discharging, reducing the polarization of the battery, improving the high and low temperature performance of the battery, and prolonging the cycle life of the battery.

The industry believes that carbon nanotubes will accelerate the replacement of traditional conductive carbon black in the field of lithium-ion batteries in the future.

On the one hand, since the subsidy amount is directly linked to the energy density of the battery system, the trend of the development of the power battery to high energy density becomes more and more obvious, and the application advantages of the carbon nanotube conductive agent are increasingly prominent, and the replacement of the conventional carbon black conductive agent will be accelerated in the future.

On the other hand, driven by the new energy vehicle market, the production and sales of power batteries have increased rapidly, and the 3C digital market has also grown steadily, which will directly drive the demand for carbon nanotube conductive paste.

"At present, 90% of the company's market is concentrated in the high-end digital field, but the market share of the power battery field will continue to increase in the future." Quan Zhang said that Jiyue Nano is currently expanding its production capacity. The current production capacity is about 750 tons / month, and the production capacity at the end of the year will be up to 1000 tons / month.

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