Graphene Triboelectric Footpath Planks for Large-Scale Power Output
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Solution Overview
Problem
Current triboelectric generators are limited in powering larger devices due to their small-scale design and surface area, which restricts their ability to generate sufficient electricity for charging devices beyond small electronics.
Innovation Solution
The solution involves enhancing triboelectric materials with graphene for increased conductivity and connecting individual triboelectric units with copper strips, supported by a long-lasting frame and suspension system using rare-earth metal magnets and planks, to expand the surface area and generate more electricity from human movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If triboelectric material surface area is increased to power larger devices, then electricity generation capacity is improved, but device complexity and manufacturing difficulty increase
Solution Approach 1:
The system is divided into multiple individual triboelectric plank units that can be independently manufactured and then connected together. Each plank contains triboelectric layers, conductive layers, and magnetic components arranged in modular segments, allowing the overall surface area to be scaled by adding more planks rather than creating one large complex device.
Solution Approach 2:
Multiple triboelectric plank units are connected together through copper strips that merge the electrical output of individual planks into a unified power generation system. The planks are arranged in series or parallel configurations to achieve the desired total power output while maintaining modular simplicity.
2Power
If triboelectric material surface area is increased to power larger devices, then electricity generation capacity is improved, but manufacturing precision requirements increase
Solution Approach 1:
Each plank unit is manufactured as a separate module with standardized dimensions and layer configurations, allowing for consistent manufacturing precision to be maintained across individual units without compounding errors when scaling to larger systems.
Solution Approach 2:
The triboelectric materials are applied locally to specific surfaces of each plank with controlled patterns, ensuring that the critical charge-generating surfaces have precise geometry and material properties, while other structural components can be manufactured with standard tolerances.
3Reliability
If graphene is used to enhance conductivity of triboelectric materials, then electricity conduction is improved, but manufacturing complexity increases
Solution Approach 1:
Graphene is integrated into the plank structure as a conductive layer combined with other materials to form a composite structure. The graphene-enhanced conductive layers are laminated between triboelectric layers, creating a multi-layer composite plank that achieves high conductivity while maintaining manufacturability through layer-by-layer assembly.
4Reliability
If rare-earth metal magnets are used for suspension system, then suspension reliability is improved, but device complexity increases
Solution Approach 1:
The rare-earth metal magnets are integrated directly into the plank structure, merging the suspension function with the structural components. Magnets are embedded within or attached to the planks to create magnetic repulsion-based suspension, eliminating the need for separate mechanical suspension mechanisms and reducing overall device complexity.
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 enables the generation of a stable and substantial amount of electricity, sufficient for charging larger devices, by optimizing the surface area interaction and conductivity, thereby enhancing the energy output from triboelectric generators.
Implementation Method 1
Triboelectric generators (electricity from oppositely charged surface interaction and where energy output is surface area dependent)
Implementation Method 2
where the copper strips connect the individual units and allow for connection to further consecutive units of the embodiment and subsequently to an energy storage unit
Implementation Method 3
Opposing neodymium magnets 22 with same pole facing each other for suspension and allowance of compression from foot-traffic and allowing the top planks 26 to return to their initial position due to magnetic repulsion
Data Source
AI summary
The invention is comprised of individual planks with positively charged triboelectric pads attached, connected by copper strips and suspended by neodymuim magnets over a mirrored overlaying of planks, of the same length and width of the prior, with negatively charged triboelectric pads also connected by a copper strip. The overlayed planks stabilized by wood pegs.