Foldable Fuel Cell Strip Assembly for Stack Positioning
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Solution Overview
Problem
The challenge in fuel cell manufacturing lies in efficiently and reproducibly assembling fuel cell stacks with stringent requirements for contamination-free electrode and separator plates, necessitating accurate, economical, and reproducible preparation and assembly methods, especially in high-volume production where rapid handling of numerous plates is necessary.
Innovation Solution
A method involving a strip of fuel cell components with a support structure featuring lateral fold regions, allowing the components to be folded so their surfaces face the same direction, and an indexing structure of a different material for precise positioning, enabling efficient assembly by avoiding separate positioning of individual components and using cheaper sacrificial materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional separate positioning methods are used for individual fuel cell components, then manufacturing precision can be maintained, but device complexity and time consumption increase significantly
Solution Approach 1:
The support structure is divided into multiple lateral fold regions that can be independently folded to position different components. This segmentation allows each section to be positioned separately while maintaining overall assembly efficiency, resolving the contradiction between assembly speed and positioning complexity.
Solution Approach 2:
Components are pre-positioned on the support structure before final assembly. The support structure with lateral fold regions is prepared in advance with components attached, allowing for preliminary positioning that simplifies the final assembly process and reduces time consumption.
2Strength
If expensive fuel cell materials are used for the support structure, then structural strength is ensured, but manufacturing cost increases
Solution Approach 1:
The support structure is designed as a sacrificial component made from cheaper materials that can be removed after serving its positioning function during assembly. This allows using less expensive materials for the support structure while maintaining the required strength during the assembly process, thereby reducing manufacturing costs.
Solution Approach 2:
The support structure acts as an intermediary component that facilitates assembly but is not part of the final fuel cell product. By using sacrificial material that can be removed, it enables the use of cheaper materials for this temporary structural role, reducing overall manufacturing cost while ensuring adequate strength during assembly.
3Manufacturing precision
If all fuel cell components are handled individually, then manufacturing precision is maintained, but productivity decreases due to rapid handling requirements
Solution Approach 1:
Multiple fuel cell components are merged onto a single support structure with lateral fold regions, allowing them to be handled and positioned together as a unit. This combining approach maintains alignment accuracy through the structured support while improving productivity by reducing the number of separate handling operations required.
Data Source
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AI summary
The invention relates to a strip of fuel cell components comprising a plurality of fuel cell components spaced apart in a first direction and a support structure connected to the plurality of fuel cell components. The plurality of fuel cell components comprise a first surface. The support structure comprises two lateral fold regions between adjacent fuel cell components such that the support structure is foldable in order for the first surfaces of the plurality of fuel cell components to face in the same direction when folded.