Nano-scale Conductor Fabrication via Resin Alignment
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Solution Overview
Problem
Conventional electrical conductors made of copper and aluminum are limited by high electrical resistivity, leading to heat generation and weight constraints in applications like aircraft and electronic devices, which restricts power transmission and increases fuel consumption.
Innovation Solution
The use of nano-scale material elements, such as carbon nanotubes, aligned within a polymeric resin matrix to create conductors with reduced resistance and weight, achieved through sorting, alignment, and curing processes, including the application of electric fields and selective resin removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If copper or aluminum conductors are used, then electrical conductivity is maintained, but weight increases and heat generation occurs
Solution Approach 1:
The patent employs a composite structure consisting of conductive nano-scale material elements (such as carbon nanotubes or metallic nanoparticles) dispersed within an electrically insulating polymer matrix. This composite approach enables the conductor to achieve low electrical resistivity through the conductive filler network while the polymer matrix provides structural support with minimal weight, thereby reducing both heat generation and overall conductor weight compared to traditional copper or aluminum conductors
Solution Approach 2:
The patent changes the physical and chemical parameters of the conductive material by transitioning from bulk metallic conductors to nano-scale material elements. This parameter change includes reducing the size of conductive particles to nanoscale dimensions, controlling their distribution density, aspect ratio, and spatial arrangement within the polymer matrix, which collectively optimize electrical conductivity while minimizing weight and heat generation
2Power
If copper or aluminum conductors are used, then electrical power transmission is enabled, but weight increases leading to increased fuel consumption
Solution Approach 1:
The composite structure of conductive nano-elements in an insulating polymer matrix provides sufficient electrical conductivity for power transmission applications while dramatically reducing conductor weight. The conductive filler forms percolation pathways that enable efficient power transmission, and the lightweight polymer matrix replaces heavy metals, resulting in reduced overall weight and fuel consumption in aircraft and mobile applications
Solution Approach 2:
By changing the physical parameters of the conductive material to nanoscale dimensions and optimizing the concentration, shape, and distribution of conductive particles within the polymer matrix, the patent achieves adequate electrical conductivity for power transmission with significantly reduced material density and weight compared to traditional metallic conductors
3Loss of energy
If nano-scale material elements are aligned within resin matrix, then specific resistivity is reduced by 50%, but manufacturing complexity increases
Solution Approach 1:
The patent applies preliminary alignment actions to the conductive nano-scale material elements during the manufacturing process, such as using electric fields, magnetic fields, or shear flow during injection molding to orient the conductive particles along the intended current flow direction before the polymer matrix fully cures. This preliminary alignment ensures optimal electrical conductivity pathways are established during fabrication, achieving 50% reduction in specific resistivity while managing manufacturing complexity through integrated processing steps
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
This approach results in conductors with significantly reduced specific resistivity by approximately 50% compared to copper and aluminum, enabling weight reduction in various devices and systems while maintaining structural integrity, thereby lowering heat generation and fuel consumption.
Implementation Method 1
application of an electric field to the resin-nano-scale material mixture
Data Source
AI summary
A method for fabricating a conductor includes providing a plurality of conductive nano-scale material elements, dispersing the nano-scale material elements within a resin to provide a resin-nano-scale material mixture, aligning the nano-scale material elements within the resin-nano-scale material mixture, and curing the resin-nano-scale material mixture.