Direct Integrated Composite Membranes for Electrolyzer Interface Strength
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Solution Overview
Problem
Existing electrolyzers face challenges in reducing costs, improving interface connections, and increasing flexibility in membrane materials design and selection, as the membrane is traditionally prepared independently and subsequently physically attached to electrode layers.
Innovation Solution
A direct integrated composite membrane assembly is formed by applying the membrane directly to the electrode layer on the substrate in a single process, using methods like wet coating, spraying, or sputtering, incorporating a substrate with gas diffusion layers and a platinum-based metal alloy electrocatalyst, and optionally including a reinforcement layer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the membrane is prepared independently and physically attached to electrode layers, then the membrane can be manufactured separately, but the interface connection is weak and additional lamination steps are required
Solution Approach 1:
The patent merges the membrane and electrode layer into a single integrated composite membrane where the membrane is applied directly to the electrode layer formed on the substrate. This eliminates the need for separate manufacturing and physical attachment processes, thereby strengthening the interface connection while maintaining manufacturing flexibility.
Solution Approach 2:
The membrane is applied directly to the electrode layer that is already formed on the substrate, rather than attaching pre-manufactured components. This preliminary integration approach ensures strong interface connection from the outset and eliminates subsequent lamination steps.
2Reliability
If the membrane is applied directly to the electrode layer on the substrate in a single process, then the interface connection is enhanced and costs are reduced, but the manufacturing process becomes more integrated
Solution Approach 1:
The patent combines multiple manufacturing steps into a single integrated process where the membrane is applied directly to the electrode layer on the substrate. This merging of operations enhances interface connection strength while the integrated nature of the process actually simplifies overall manufacturing by eliminating separate lamination steps.
3Ease of manufacture
If traditional physical attachment methods are used, then separate components can be manufactured, but additional lamination steps increase cost and time
Solution Approach 1:
The membrane is applied directly to the electrode layer that is already formed on the substrate in a single process. This preliminary integration eliminates the need for subsequent lamination steps, thereby reducing manufacturing cycle time while maintaining the ability to manufacture components independently before integration.
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 enhances interface connections, allows for flexible membrane material selection, reduces costs by eliminating additional lamination steps, and enables rapid tuning of characteristics during manufacturing.
Implementation Method 1
the membrane being applied directly to the electrode layer that is on the substrate using at least one operation including wet coating, spraying, or sputtering
Implementation Method 2
the membrane being applied directly to the electrode layer that is on the substrate using at least one operation including wet coating, spraying, or sputtering
Implementation Method 3
the membrane being applied directly to the electrode layer that is on the substrate using at least one operation including wet coating, spraying, or sputtering
Implementation Method 4
the substrate being formed of one or more gas diffusion layers including a macro porous substrate and microporous layers
Data Source
AI summary
A gas diffusion electrode membrane for one of a proton exchange membrane electrolyzer or an alkaline electrolyzer includes a substrate formed of one or more gas diffusion layers including a macro porous substrate and microporous layers, the electrode layer including a platinum-based metal alloy. The gas diffusion electrode membrane further including an electrode layer including a platinum-based metal alloy and a membrane integrated with the electrode layer and simultaneously applied to the substrate with the electrode layer, applying the membrane and the electrode layer directly to the substrate being performed at a single location as part of a single process.