Graphene Wire Stranded Cable Integrity
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Solution Overview
Problem
Existing graphene wires lack sufficient tensile strength, flexibility, and electrical conductivity due to the damage of the graphene layer during the twisting process of core wires, which affects their performance in applications such as circuit boards and electronic devices.
Innovation Solution
A graphene wire is developed with a catalytic metal wire that includes a stranded cable of twisted core wires, where the graphene layer is synthesized after twisting, ensuring the layer's integrity and improving electrical conductivity without compromising the wire's tensile strength and flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If a graphene layer is coated on a catalytic metal wire before twisting the core wires, then the wire structure can be formed, but the graphene layer is damaged during the twisting process
Solution Approach 1:
The core wires are twisted into a stranded cable structure before the graphene layer is coated thereon. This preliminary formation of the wire structure prevents graphene layer damage during twisting, as the twisting process is completed before the fragile graphene coating is applied.
Solution Approach 2:
The conventional sequence of coating graphene then twisting is inverted. Instead, the wire is first formed by twisting core wires, and then the graphene layer is coated on the already-formed stranded cable structure. This reversal of process sequence eliminates the problem of graphene damage during twisting.
2Manufacturing precision
If the graphene layer is coated after twisting the core wires, then the graphene layer integrity is maintained, but the tensile strength and flexibility may be compromised
Solution Approach 1:
The wire consists of a composite structure where multiple metal core wires are twisted together to form a stranded cable, providing mechanical strength and flexibility. The graphene layer is then coated on this stranded cable structure, combining the mechanical properties of the metal cores with the electrical conductivity of graphene.
3Reliability
If the graphene layer is coated after twisting the core wires, then the electrical conductivity is improved, but the manufacturing complexity increases
Solution Approach 1:
The core wires are twisted into a stranded cable structure before the graphene layer is coated thereon. This preliminary formation of the wire structure prevents graphene layer damage during twisting, as the twisting process is completed before the fragile graphene coating is applied.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution enhances the tensile strength, flexibility, and electrical characteristics of the graphene wire, maintaining the integrity of the graphene layer and improving charge velocity, particularly for radio frequency signals, while preventing damage during the twisting process.
Implementation Method 1
a graphene layer coated on a surface of the catalytic metal wire
Data Source
AI summary
Provided are a graphene wire, a cable to which the graphene wire is applied, and a method of manufacturing the graphene wire. The graphene wire includes a catalytic metal wire and a graphene layer coated on a surface of the catalytic metal wire, and the catalytic metal wire includes a stranded cable in which at least two core wires are twisted around each other.