Method and device for massively producing graphene conductive slurry and prepared graphene conductive slurry

A technology of conductive paste and graphene, applied in the direction of conductive materials dispersed in non-conductive inorganic materials, cable/conductor manufacturing, circuits, etc., can solve the problem of high viscosity of the original conductive paste, difficulty in achieving peeling effect, powder mixing Inhomogeneity and other problems to achieve the effect of improving efficiency, excellent physical and chemical properties, and reducing time
CN108630338AActive Publication Date: 2018-10-09北京地泽科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
北京地泽科技有限公司
Publication Date
2018-10-09

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Abstract

The invention provides a method and a device for massively producing a graphene conductive slurry and a prepared graphene conductive slurry. The method comprises the following steps of a) mixing graphite and a solvent, carrying out at least one low-speed mixing processing or / and low-speed shearing processing and acquiring a graphite dispersion liquid; b) carrying out at least one sanding processing on the graphite dispersion liquid and acquiring a preliminary stripped graphene dispersion liquid; c) carrying out at least one high pressure homogenization processing or / and ultrasonic processing on the preliminary stripped graphene dispersion liquid, and acquiring a single layer or a small layer of graphene dispersion liquid; d) dissolving a dispersing agent in a solvent to obtain a dispersantsolution; and e) mixing the single layer or the small layer of graphene dispersion liquid and the dispersant solution, carrying out at least one sanding processing, and acquiring the graphene conductive slurry. By using the method, under the condition of environmental protection, the stable and uniformly-dispersed graphene conductive slurry with a high concentration is acquired. And the device issuitable for the continuous automatic production of the high-concentration and high-stability graphene conductive slurry.
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Description

technical field

[0001] The invention belongs to the technical field of preparation of graphene conductive paste, and in particular relates to a large-scale continuous production of graphene conductive paste, a device and a graphene conductive paste prepared by the method. Background technique

[0002] In 2004, two professors from the University of Manchester successfully prepared graphene, and won the Nobel Prize in 2010 for this. Graphene is a two-dimensional material with a thickness of only one carbon atom and has excellent physical and chemical properties. For example, the specific surface area of ​​graphene is 2630m 2 / g, the thermal conductivity is as high as 5300W / m K, and its electron mobility exceeds 15000cm at room temperature 2 / V·s, the resistivity is only 10 -8 Ω·cm, the strength is as high as 1.01TPa. The superior properties of graphene make it have great application prospects.

[0003] At present, graphene is most widely used in the field of lithium batte...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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