MXene-Coated Fiber Membrane Generator for Direct Current Harvesting
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Solution Overview
Problem
Existing energy generation devices, such as piezoelectric and triboelectric devices, produce high-frequency alternating current (AC) voltage and current, requiring additional rectifier circuits for direct power supply to electronic devices and suffer from decreased efficiency due to mechanical deformation, friction, and heat damage.
Innovation Solution
A MXene layer-coated hydrophilic fiber membrane-based complex generator that utilizes an electrical double layer formed by a polar solution to generate direct current (DC) power, eliminating the need for rectifier circuits and reducing material damage through a dipping process and asymmetric wetting structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If piezoelectric or triboelectric energy generation devices are used, then high voltage and high power can be generated, but the generated electrical energy is in the form of high-frequency alternating current requiring additional rectifier circuits
Solution Approach 1:
The patent replaces mechanical energy conversion mechanisms (piezoelectric and triboelectric effects) with an electrical double layer-based energy generation mechanism. This substitution eliminates the need for mechanical deformation and friction, thereby generating direct current without requiring rectifier circuits while maintaining high power output capability
Solution Approach 2:
The patent changes the fundamental operating principle from mechanical-to-electrical energy conversion to electrical double layer formation and ion diffusion. This parameter change in the energy generation mechanism directly produces direct current instead of alternating current, simplifying the overall device structure by eliminating rectification requirements
2Power
If piezoelectric or triboelectric energy generation devices are used, then electrical energy can be generated through mechanical deformation and friction, but repetitive mechanical deformation and friction damage core components and materials
Solution Approach 1:
The patent replaces mechanical energy conversion mechanisms (piezoelectric and triboelectric effects) with an electrical double layer-based energy generation mechanism. This substitution eliminates the need for mechanical deformation and friction, thereby eliminating the damage to core components and materials while maintaining high power output capability
Solution Approach 2:
The electrical double layer structure spontaneously forms when polar solution contacts the MXene layer, requiring no external mechanical input. The system generates energy through natural ion diffusion and electrical potential differences, eliminating wear and damage associated with mechanical actuation
3Power
If current collectors (metal substrates) are used to provide electrical conductivity, then electrical energy can be collected, but mechanical deformation causes delamination of energy generation materials from the current collectors
Solution Approach 1:
The patent replaces mechanical current collectors with conductive polymer materials that can be integrated into the flexible substrate structure. This eliminates the delamination problem caused by mechanical deformation while maintaining electrical conductivity through the polymer matrix
Solution Approach 2:
The patent uses composite materials consisting of conductive polymers combined with energy generation layers. This composite structure provides both electrical conductivity and mechanical flexibility without the delamination issues of metal substrates, as the polymer matrix bonds uniformly with the energy generation materials
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
Enables continuous DC power generation without damaging the device, allowing direct power supply to electronic devices and improving energy generation efficiency by using a large-surface-area MXene layer on a hydrophilic fiber membrane.
Implementation Method 1
The complex generator forms a potential difference using an electrical double layer formed in a process in which a polar solution is adsorbed onto a surface of MXene, and uses the formed potential difference to generate electrical energy
Implementation Method 2
The hydrophilic fiber membrane having a large surface area and a high polar solution absorption capacity is a substrate which allows the MXene particles to be applied in as large an area as possible, and is able to absorb the polar solution well
Implementation Method 3
generate an electric current through the diffusion of the solvent to a dry region of the membrane
Data Source
AI summary
Embodiments of the disclosure relate to a novel concept complex generator enabling high-efficient power generation by applying a polar solution to a MXene layer-coated hydrophilic fiber membrane-based complex generator, and a manufacturing method thereof. Specifically, a MXene layer-coated hydrophilic fiber membrane-based electrical energy generation device uniformly applies MXene particles to fiber strand surfaces of hydrophilic fiber membranes through a dipping process to form a MXene layer.