Textile Electrode with Nanostructures for Supercapacitor Capacity
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Solution Overview
Problem
Existing electrochemical capacitors face limitations in increasing capacity without increasing size, necessitating methods to enhance specific surface area and charge mobility for improved energy storage efficiency.
Innovation Solution
The electrode structure incorporates a textile-type conductive substrate with alternately layered one-dimensional nanostructures, such as carbon fibers or nanotubes, and a graphene material, providing a high specific surface area and conductivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the volume of the supercapacitor is increased to increase capacity, then the capacity increases, but the size increases which is limited by application requirements
Solution Approach 1:
The electrode structure employs porous materials including one-dimensional nanostructures (carbon nanotubes, carbon fibers) and graphene materials with high porosity. These porous structures provide extremely high specific surface area that enables increased capacity without proportional increase in volume, directly resolving the contradiction between capacity and size
Solution Approach 2:
The invention uses composite electrode structures combining multiple materials: conductive substrate, one-dimensional nanostructures, and graphene materials. This composite approach synergistically enhances both capacity and energy density, allowing higher capacity in smaller volumes by optimizing the contribution of each material component
2Quantity of substance
If the specific surface area of the electrode is increased to increase capacity, then the capacity increases, but the charge mobility may be compromised
Solution Approach 1:
The electrode structure implements local quality optimization by creating regions with different functional characteristics. The porous structure provides high surface area for charge storage in specific regions, while conductive pathways and one-dimensional nanostructures ensure efficient charge transport in other regions, simultaneously achieving high capacity and maintained charge mobility
Solution Approach 2:
The invention changes physical parameters of the electrode structure including porosity, surface area, and conductive network density. By optimizing these parameters, the structure achieves high specific surface area for capacity while maintaining adequate charge mobility through controlled porosity and conductive pathways
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 configuration enhances the energy storage device's capacity and durability, enabling efficient charge-discharge cycles and high power applications, suitable for next-generation energy storage devices.
Implementation Method 1
performing surface processing to positively charge the surface of the textile-type conductive substrate; wherein the plurality of one-dimensional nanostructures are self-assembled on the textile-type conductive substrate
Data Source
AI summary
The electrode structure includes: a textile-type conductive substrate; a first layer which is disposed on the textile-type conductive substrate and includes a plurality of one-dimensional nanostructures; and a second layer which is formed on the first layer and includes a graphene material.