Graphene-Metal Composite via Compression

Solution Overview

Problem

Current methods fail to effectively enhance the thermal and electrical conductivity of graphene due to its brittleness and low capacity when layered, and stanene's efficiency is limited by its thinness and material properties.

Innovation Solution

A graphene-metal or stanene-metal composite is created by depositing graphene or stanene onto a porous metal foam substrate and compressing it, with additional metal layers interposed to prevent graphite formation and enhance conductivity, using chemical vapor deposition and compression to create a multilayered structure.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If graphene is layered to increase capacity, then the amount of material increases, but thermal and electrical conductivity deteriorate due to brittleness and low capacity when layered

Engineering Contradiction:

Improvegraphene capacityVSAvoidthermal and electrical conductivity

Core Design Contradiction:

Quantity of substanceVSReliability

Solution Approach 1:

The patent creates a composite material by depositing graphene onto a metal foam substrate. The metal foam provides structural support and maintains thermal/electrical conductivity, while the graphene layers add capacity. This composite approach allows the graphene to function without suffering from the conductivity deterioration that occurs when graphene is layered alone.

Inventive Principle:

Principle #40Composite materials

Solution Approach 2:

The patent utilizes porous metal foam as the substrate for graphene deposition. The porous structure provides high surface area for graphene attachment while maintaining structural integrity and conductivity pathways. The porosity allows for efficient heat and electron transfer through the metal foam framework, compensating for the conductivity loss in layered graphene.

Inventive Principle:

Principle #31Porous materials

2Reliability

If stanene is used to enhance conductivity, then electrical transfer properties improve, but the thinness and material properties limit its efficiency

Engineering Contradiction:

Improveelectrical conductivityVSAvoidmaterial structure limitations

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent creates a composite material by depositing graphene onto a metal foam substrate. The metal foam provides structural support and maintains thermal/electrical conductivity, while the graphene layers add capacity. This composite approach allows the graphene to function without suffering from the conductivity deterioration that occurs when graphene is layered alone.

Inventive Principle:

Principle #40Composite materials

Solution Approach 2:

The patent utilizes porous metal foam as the substrate for graphene deposition. The porous structure provides high surface area for graphene attachment while maintaining structural integrity and conductivity pathways. The porosity allows for efficient heat and electron transfer through the metal foam framework, compensating for the conductivity loss in layered graphene.

Inventive Principle:

Principle #31Porous materials

3Reliability

If compression is applied to increase heat and electrical transfer properties, then conductivity improves, but the structural integrity may be compromised

Engineering Contradiction:

Improveheat and electrical transfer propertiesVSAvoidstructural integrity

Core Design Contradiction:

ReliabilityVSStrength

Solution Approach 1:

The patent utilizes porous metal foam as the substrate for graphene deposition. The porous structure provides high surface area for graphene attachment while maintaining structural integrity and conductivity pathways. The porosity allows for efficient heat and electron transfer through the metal foam framework, compensating for the conductivity loss in layered graphene.

Inventive Principle:

Principle #31Porous materials

Solution Approach 2:

The patent changes the physical state and density parameters of the composite material through controlled compression. By applying compression, the material density increases and conductivity pathways are optimized, transforming the material from a loose assembly to a dense, high-performance composite with improved thermal and electrical transfer properties.

Inventive Principle:

Principle #35Parameter changes

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 composite exhibits significantly improved thermal and electrical conductivity, with the compression process increasing efficiency by creating a flattened graphene matrix and adding capacity, making it suitable for applications like thermal management and electronics.

Implementation Method 1

graphene or stanene is deposited onto the porous metal foam substrate by chemical vapor deposition

Methodology Applied

Scientific EffectChemical vapor deposition: Chemical Vapour Deposition

Implementation Method 2

the porous metal foam substrate with graphene being compressed into a graphene-metal composite

Methodology Applied

Scientific EffectCompression: Compression

Data Source

PatentUS10858733B2High conductivity graphene-metal composite

Publication Date: 2020.12.08 FOURTE INT SDN BHD

AI summary

Embodiments of the present technology include graphene-metal composites. An example graphene-metal composite comprises a porous metal foam substrate, a graphene layer deposited to the porous metal foam substrate, a metal layer applied to the graphene layer, and another graphene layer deposited to the metal layer; the multilayered porous metal foam substrate being compressed to form a graphene-metal composite.