Membrane-Electrode Gasket Assembly with Continuous Inline Joining
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Solution Overview
Problem
Existing methods for manufacturing membrane-electrode gasket assemblies disrupt the continuity of processes, leading to damage and quality deterioration of the membrane-electrode joined body during separate operations of catalyst application and gasket joining, requiring unwinding and re-winding that compromises the assembly's integrity.
Innovation Solution
A device comprising a first sub-assembly for joining a membrane and electrode catalysts, a second sub-assembly for receiving the membrane-electrode body, and a third sub-assembly for integrating gasket joining, ensuring continuous processing and minimizing damage by maintaining the membrane's continuous flow through the sub-assemblies, including unwinders, slot dies, dryers, moving rollers, and heat-pressing parts for catalyst application and gasket attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If separate operations are used for catalyst application and gasket joining, then each operation can be performed independently, but continuity between processes is interrupted and the membrane-electrode joined body is damaged during unwinding and re-winding
Solution Approach 1:
The patent combines the catalyst application operation and gasket joining operation into a single integrated device. The membrane-electrode joined body is manufactured and immediately processed without being wound and stored separately. The device includes a first sub-assembly for catalyst application and a second sub-assembly for gasket joining, both processing the membrane continuously in sequence without interruption, thereby eliminating the need to unwind and re-wind the membrane-electrode joined body.
2Ease of operation
If the membrane-electrode joined body is wound and stored between operations, then storage and handling are facilitated, but the membrane-electrode joined body or like components are damaged and overall quality is deteriorated
Solution Approach 1:
The patent ensures continuous processing of the membrane-electrode joined body from catalyst application through gasket joining without interruption. The membrane is fed continuously through both sub-assemblies, and the processed membrane-electrode joined body is immediately transferred to the next operation without being wound and stored. This continuous action eliminates handling steps that cause damage and maintain high manufacturing precision throughout the process.
3Productivity
If multiple sub-assemblies are integrated in sequence, then continuous processing is achieved and damage is minimized, but device complexity increases
Solution Approach 1:
The patent divides the integrated device into distinct sub-assemblies: a first sub-assembly for catalyst application and a second sub-assembly for gasket joining. Each sub-assembly performs a specific function in sequence, allowing the membrane to be processed continuously through multiple stages. This segmentation enables continuous processing and high productivity while maintaining manageable device complexity through functional modularity.
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 solution enables continuous processing of membrane-electrode gasket assemblies, reducing damage and improving quality by integrating catalyst application and gasket joining within a single device, ensuring uninterrupted membrane flow and enhanced adhesion forces.
Implementation Method 1
a membrane unwinder configured to supply a film to which the membrane is attached
Implementation Method 2
a first slot die provided downstream from the first film rewinder and being configured to apply a first electrode catalyst to a surface of the membrane
Implementation Method 3
a first adsorption roller facing the first slot die and being configured to adsorb the membrane
Implementation Method 4
a first film rewinder provided downstream from the membrane unwinder and being configured to collect the film from the membrane
Implementation Method 5
a first dryer configured to dry the membrane and the first electrode catalyst
Implementation Method 6
a third sub-assembly provided downstream from the second sub-assembly, the third sub-assembly being configured to receive the membrane-electrode body from the second sub-assembly and to manufacture an assembly by joining a gasket to the membrane-electrode joined body
Data Source
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AI summary
Disclosed is a device for manufacturing a membrane-electrode gasket assembly, the device including a first sub-assembly configured to manufacture a membrane-electrode body having a membrane and an electrode catalyst being joined to each other, a second sub-assembly provided downstream from the first sub-assembly and being configured to receive the membrane-electrode body from the first sub-assembly, and a third sub-assembly provided downstream from the second sub-assembly, the third sub-assembly being configured to receive the membrane-electrode body from the second sub-assembly and to manufacture an assembly by joining a gasket to the membrane-electrode joined body, wherein the membrane is disposed continuously over the first to third sub-assembly.