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Method for preparing graphene wire and cable

A technology of graphene and graphene film, which is applied in the direction of cable/conductor manufacturing, circuit, electrical components, etc., can solve the problems of not fully utilizing the conductive properties of graphene, achieve good chemical stability, fast electron movement speed, and light weight Effect

Inactive Publication Date: 2013-05-29
青岛科孚纳米技术有限公司
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Problems solved by technology

The third Chinese patent (authorized announcement number: CN202694887U) uses the ultra-high mechanical strength of graphene to coat a layer of graphene on the outer sheath of the cable to prevent mice from biting the cable, but this patent only uses graphite Graphene is used as the sheath of the cable, and the conductive properties of graphene are not fully utilized

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  • Method for preparing graphene wire and cable
  • Method for preparing graphene wire and cable
  • Method for preparing graphene wire and cable

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Embodiment Construction

[0033] Reference herein to "one embodiment" or "an embodiment" refers to a particular feature, structure or characteristic that can be included in at least one implementation of the present invention. "In one embodiment" appearing in different places in this specification does not all refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

[0034] As mentioned earlier, due to the excellent properties of graphene materials, there is now a technology to use graphene powder materials as conductive core materials, but due to the two-dimensional conductive properties of graphene (ie: the resistance of graphene on a two-dimensional plane Rate is 10 -6 Ω cm, while the resistivity in the Z-axis direction increases rapidly to 10x10 -1 Ω·cm), causing the resistivity of the chaotically stacked graphene powder to drop to 6.6x10 -3 Ω·cm. This greatly affects the conductive properties of graphene. The invention provi...

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Abstract

The invention provides a method for preparing a graphene wire and cable. The method comprises the following steps of: spraying or growing a graphene functional material with superior two-dimensional conduction characteristic on a substrate membrane material, and converting disordered graphene nanosheets into highly ordered two-dimensional graphene membranes through treatment of a hot pressing technology so as to prepare the graphene membrane material with the superior two-dimensional conduction characteristic; and then winding the two-dimensional graphene membrane material into the graphene wire with superior one-dimensional conduction characteristic through a winding technology. The graphene wire has the advantages of low resistance, high conduction density, superior conduction characteristic to that of metal conductors such as copper and silver, light weight, high temperature resistance and good chemical stability; and the graphene wires can be assembled and packaged to prepare a high-current graphene cable.

Description

【Technical field】 [0001] The invention relates to the field of wires and cables, in particular to a method for preparing wires and cables using graphene. 【Background technique】 [0002] The wire and cable industry is one of the important supporting industries in the construction of the national economy. Its output value accounts for a quarter of my country's electrical industry, and its annual output value has accounted for about 2% of my country's GDP. With the acceleration of my country's urbanization process, power grid construction is developing rapidly. The demand for 110kV and above high voltage and extra high voltage power cables is growing rapidly. At the same time, the wire and cable industry has a more urgent demand for new types of wire and cable, mainly in lighter wire and cable materials, ultra-high current density, ultra-high electron mobility, lower resistivity, and more Good chemical stability and mechanical strength. [0003] Graphene is the core function...

Claims

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Application Information

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IPC IPC(8): H01B13/00
Inventor 萧小月徐燕
Owner 青岛科孚纳米技术有限公司
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