Graphene powder preparation system for carbon nanotube slurry preparation

Abstract

The invention relates to a graphene powder preparation system for carbon nanotube slurry preparation. The graphene powder preparation system comprises a grinding device, a conveying device and a drying device, wherein the drying device comprises a drying cylinder and a water tank; the top of the drying cylinder is connected with a conveying pipe; the upper end of the inner wall of the drying cylinder is provided with guide plates; the guide plates are arranged in a spiral rising manner; a heating box is arranged on the side wall of the drying cylinder; an induced draft fan and an electric heater are arranged in the heating box; an air outlet pipe is arranged on an air outlet of the induced draft fan; the electric heater is arranged on the air outlet pipe; the other end of the air outlet pipe penetrates through the heating box and the drying cylinder and is located above the guide plates; the water tank is arranged on one side of the drying cylinder and provided with a water pump; the water pump is connected to the interior of the water tank through a pipeline; the output end of the water pump is connected with a water conveying pipe; one end of the water conveying pipe is connectedwith the top of the drying cylinder; and an atomization nozzle is connected to the top of the inner wall of the drying cylinder. Under the action of the guide plates, graphene powder rolls down alongthe guide plates, so that the drying time of the graphene powder is prolonged.

Description

technical field [0001] The invention belongs to the technical field of conductive slurry preparation, and in particular relates to a graphene powder preparation system for carbon nanotube slurry preparation. Background technique [0002] As a new type of green energy, lithium-ion batteries are widely used in power systems for digital products, electric vehicles, and national defense and military equipment due to their advantages such as high capacity, high voltage, small size and light weight, long cycle life, good safety, and no memory effect. , and photovoltaic energy storage systems and many other fields. With the use of secondary batteries, such as lithium-ion batteries, in the fields of electric tools and new energy vehicles, people have put forward higher and higher requirements for the power performance of lithium-ion batteries. The new carbon nanotubes and graphene have more excellent conductivity as conductive additives. Graphene is a sp2 hybrid carbon six-membered...

AI Technical Summary

Problems solved by technology

The equipment in the existing graphene powder preparation system has poor grinding effect during grinding, and there will still be large particle agglomeration in the graphene slurry, and a separate grinding disc is used for grinding, and the grinding efficiency is low; and the existing The internal structure of the dryer is simple. When drying the graphene slurry, the graphene slurry cannot be fully dried, and a small amount of insufficiently dried graphene powder will fall directly into the collection box under the action of gravity, thereby Affect the quality of graphene powder

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