Dual-Layer Conductive Member for Simpler Fuel Cell Assembly
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Solution Overview
Problem
Conventional fuel cells and electrolysis devices have complex configurations due to multiple combined components, leading to increased manufacturing costs.
Innovation Solution
A conductive member comprising a first porous layer and a second layer with lower porosity, laminated together to function as a current collector and separator in fuel cells, and as an electrode and support in electrolysis devices, reducing the number of components and manufacturing processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple separate components (current collector, separator, electrode support) are used in fuel cells and electrolysis devices, then the structural integrity and functional performance are maintained, but the device complexity and manufacturing cost increase
Solution Approach 1:
The patent combines the current collector and separator into a single integrated conductive member with a dual-layer structure. The first layer serves as the current collector while the second layer serves as the separator, eliminating the need for separate components and reducing assembly complexity while maintaining the functional integrity of both elements
Solution Approach 2:
The conductive member is designed to perform multiple functions simultaneously: the first layer acts as both current collector and structural support, while the second layer provides separation functionality. This multi-functional design reduces the overall number of components needed in the fuel cell or electrolysis device
2Reliability
If multiple separate components are assembled together, then the functional performance is maintained, but the manufacturing process becomes more complicated and costly
Solution Approach 1:
By manufacturing the current collector and separator as a single integrated conductive member through processes like sintering or bonding in one operation, the patent eliminates multiple separate manufacturing steps and assembly operations, thereby simplifying the overall manufacturing process while ensuring functional performance
Solution Approach 2:
The conductive member is pre-formed with the dual-layer structure during manufacturing, with the first and second layers already bonded together in their final configuration. This preliminary formation of the integrated structure eliminates the need for complex assembly operations later in the manufacturing process
Data Source
AI summary
This conductive member includes a first layer and a second layer. The first layer is a porous body. The second layer is laminated on the first layer. The first layer is used for a current collector for a fuel cell or an electrode for an electrolysis device. The porosity of the second layer is lower than the porosity of the first layer. The porosity of the second layer is less than or equal to 5%.