Composite conductor prepared from graphene material

Abstract

The invention discloses a composite conductor prepared from a graphene material. The composite conductor includes graphene fibers, a graphene heat-dissipating film layer, an insulation layer and a graphene oxide layer; the graphene fibers are twisted or bundled into a graphene fiber bundle; the graphene fiber bundle is wrapped with the graphene heat-dissipating film layer; the graphene heat-dissipating film layer is wrapped with the insulation layer; and the insulation layer is wrapped with the graphene oxide layer. The graphene fibers have excellent flexibility and conductivity, higher electrical conductivity than that of aluminum and copper; the graphene fibers have good thermal stability and chemical stability; the graphene fibers can be prevented from reacting with rubber during oxidation and in a superheated environment, so that the electrical conductivity of the graphene fibers will not be reduced; and the graphite fibers have the advantages of good mechanical properties and light weight.

Description

technical field [0001] The invention relates to the field of material technology, in particular to a composite wire made of graphene material. Background technique [0002] Graphene is a honeycomb planar film formed by sp2 hybridization of carbon atoms. It is a quasi-two-dimensional material with only one atomic layer thickness, so it is also called monoatomic layer graphite. Andre Geim and Konstantin Novoselov, physicists at the University of Manchester in the United Kingdom, successfully separated graphene from graphite by micromechanical exfoliation, so they jointly won the 2010 Nobel Prize in Physics. The common powder production methods of graphene are mechanical exfoliation method, redox method, and SiC epitaxial growth method, and the film production method is chemical vapor deposition (CVD). Due to its very good strength, flexibility, electrical conductivity, thermal conductivity, and optical properties, it has been greatly developed in the fields of physics, materi...

AI Technical Summary

Problems solved by technology

[0004] The conductors in current cables are usually metals such as copper, which have weaker electrical conductivity than graphene, are heavy, and have poor thermal stability and are prone to chemical reactions such as rubber.

The outermost sheath is usually made of rubber, which has poor corrosion resistance and is easy to age

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