Electrolysis Cell Frame Offset Sealing Design
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional stack design electrolysis blocks face challenges such as complexity in sealing, low temperature cycle stability, high material consumption, and the need for numerous separate components, making them unsuitable for mass production.
Innovation Solution
A cell frame with sealing properties and offset product gas and electrolyte passage openings, along with integrated sealing beads and indentations, allows for fluid-separated discharge and supply structures, reducing the number of component types and enabling efficient assembly of identical cell frames for a stack design that minimizes separate components and enhances production suitability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional stack design electrolysis blocks use multiple different cell frame types for membrane and electrode assemblies, then the sealing and structural requirements are met, but the manufacturing complexity and number of components increase significantly
Solution Approach 1:
The patent applies universality by designing a single cell frame that serves multiple functions: it provides sealing for both membrane and electrode assemblies, maintains structural integrity, and enables fluid separation through its integrated channel structure. This universal cell frame design eliminates the need for differentiating between membrane cell frames and electrode cell frames, reducing the total number of component types while maintaining reliable sealing through standardized sealing bead and indentation features.
Solution Approach 2:
The patent merges previously separate functions into a single integrated cell frame structure. The cell frame combines sealing features (beads and indentations), fluid distribution channels, and structural support elements that were previously distributed across multiple specialized components. This merging reduces assembly complexity and the number of separate parts while achieving the same sealing and functional requirements.
2Reliability
If conventional electrolysis blocks use numerous separate components per cell, then the functional requirements are met, but the assembly process becomes time-consuming and costly
Solution Approach 1:
The patent merges multiple separate components into an integrated cell frame assembly that includes sealing beads, sealing indentations, and fluid distribution channels as built-in features. This integration reduces the number of separate parts that need to be handled and assembled, thereby increasing assembly speed and productivity while maintaining all necessary functional performances through the unified design.
3Reliability
If conventional electrolysis blocks use different sealing materials for temperature stability, then the sealing effectiveness is improved, but the temperature cycle stability decreases due to material pairing issues
Solution Approach 1:
The patent applies homogeneity by using sealing beads and sealing indentations made from the same material throughout the cell frame structure. This uniform material composition eliminates compatibility issues between different sealing materials that cause thermal expansion mismatches and sealing failures during temperature cycling. The homogeneous material ensures consistent thermal behavior and maintains sealing effectiveness across temperature variations.
4Reliability
If conventional electrolysis blocks use complex sealing structures, then the sealing reliability is improved, but the material consumption increases
Solution Approach 1:
The patent merges the sealing function into the cell frame structure itself through integrated sealing beads and indentations, eliminating the need for separate sealing components. This integration reduces material consumption by consolidating sealing functionality into the existing structural material rather than adding separate sealing elements, while maintaining reliable sealing through the optimized bead-and-indentation geometry.
Data Source
Figure 1
Figure 2~3
Figure 4
AI summary
The invention relates to an electrolysis block and also to a cell frame, an electrode assembly and a construction kit for such an electrolysis block. An electrolysis block according to the invention has a stacked structure comprising cell frames (42, 43) lying one against the other, on which cell membranes (6), bipolar plates (3) and also anode and cathode electrode structures (1, 2, 4, 5) are held. The cell frames are structurally identical, and neighbouring cell frames are arranged alternately offset at a predetermined angle in the circumferential direction. Use for example for alkaline water electrolysis.