Frictional Electricity-Generating Device With Metal Nanowire Surface
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Solution Overview
Problem
Existing frictional electricity-generating devices face inefficiencies due to complex and time-consuming surface treatment processes to increase friction efficiency, which hinder the effective generation of electricity through material rubbing.
Innovation Solution
A frictional electricity-generating device comprising a friction unit with a first conductive electrode featuring a concave-convex friction surface and a metal nanowire, and an organic friction unit, which can generate electricity through contact friction, along with a method for manufacturing that simplifies the process and enhances surface roughness for improved efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the friction surfaces are treated to increase surface roughness, then friction efficiency is improved, but the manufacturing process becomes complex and time-consuming
Solution Approach 1:
The patent changes the surface roughness parameter by incorporating metal nanowires into the friction layer, transforming the surface structure from smooth to concave-convex at the nanoscale. This achieves enhanced friction efficiency without requiring complex surface treatment processes, as the nanowire structure is formed during layer fabrication rather than through subsequent surface modification.
Solution Approach 2:
The friction layer is constructed as a composite material containing metal nanowires dispersed within a polymer matrix. This composite structure provides both the mechanical properties needed for friction-based electricity generation and the surface roughness required for enhanced friction efficiency, eliminating the need for separate surface treatment steps.
2Productivity
If the friction surfaces are treated to increase surface roughness, then friction efficiency is improved, but the manufacturing time is extended
Solution Approach 1:
The patent merges the surface roughness creation step with the friction layer fabrication step. By incorporating metal nanowires during the layer formation process rather than adding them as a separate surface treatment step, the manufacturing process is streamlined and time is reduced while still achieving the desired surface roughness for high friction efficiency.
3Manufacturing precision
If metal nanowires are incorporated into the friction layer, then surface roughness is increased, but manufacturing complexity may increase
Solution Approach 1:
The patent controls the surface roughness parameter by adjusting nanowire concentration, length, and distribution within the friction layer. By optimizing these parameters during fabrication, precise control over surface roughness is achieved without requiring complex post-processing techniques, maintaining manufacturing simplicity while achieving high manufacturing precision.
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 device achieves improved friction efficiency and reduced manufacturing complexity by increasing the surface roughness with metal nanowires, resulting in enhanced electricity generation and cost-effectiveness.
Implementation Method 1
the first conductive electrode and the organic friction unit can generate electricity by contact friction
Implementation Method 2
When the materials of the two friction layers are different, the electron restriction abilities will be different, thus electron transfer will occur during mutual friction, and opposite charges with the same amount will be generated on the two friction layers, thereby a voltage will be generated
Data Source
AI summary
The present disclosure provides a frictional electricity-generating device and a method for manufacturing the same, an electronic apparatus and a wearable apparatus. The frictional electricity-generating device comprises at least one friction unit, which comprises a first conductive electrode, an organic friction unit and a second conductive electrode. The first conductive electrode and the organic friction unit can generate electricity by contact friction, the first conductive electrode comprises a friction layer with a concave-convex friction surface, and the friction layer comprises a base layer and a metal nanowire.