Electrolytic Cell Stack Assembly with Integrated Terminal Tabs

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Conventional electrolytic cell stacks face challenges with complex and unreliable sealing, incorrect plate orientation leading to malfunction, and high costs due to complex components for introducing electric power.

Innovation Solution

The cell stack design incorporates electrode plates with integrated terminal tabs and ports, interleaved with separator plates having aligned ports and unique locating and orientation features to ensure correct assembly and orientation, along with a seal and groove configuration for effective electrolyte flow without additional ducting.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional sealing components are used in electrolytic cell stacks, then sealing function is provided, but device complexity increases and reliability decreases

Engineering Contradiction:

Improvesealing reliabilityVSAvoidsealing component complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The sealing function is merged with the separator plate structure itself. The separator plate includes integrated sealing elements (gaskets or seals) that are either molded as part of the plate or attached to its surfaces, eliminating the need for separate sealing components. This integration reduces device complexity while maintaining sealing reliability through the unified structure.

Inventive Principle:

Principle #5Merging (Combining)

2Ease of operation

If multiple plates are assembled without orientation features, then assembly is flexible, but incorrect orientation leads to malfunction

Engineering Contradiction:

Improveassembly easeVSAvoidoperational reliability

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The plates incorporate asymmetric orientation features such as positioning protrusions on one side and corresponding recesses on the other side, or asymmetric port arrangements that only align correctly in one orientation. These asymmetric features guide the assembly process, ensuring plates are installed in the correct orientation while maintaining ease of assembly through intuitive alignment.

Inventive Principle:

Principle #4Asymmetry

Solution Approach 2:

The orientation features are pre-configured on the plates during manufacturing, with positioning elements and port arrangements designed to automatically guide correct assembly. This preliminary configuration ensures that during assembly, the correct orientation is achieved without requiring additional steps or checks, preventing malfunction from incorrect installation.

Inventive Principle:

Principle #10Preliminary action

3Reliability

If complex components with multiple seals are used to introduce electric current, then current introduction function is provided, but cost increases and reliability decreases

Engineering Contradiction:

Improvecurrent introduction reliabilityVSAvoidcurrent introduction component complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The current introduction function is merged with the electrode plate structure. Electrical terminals are integrated directly into the electrode plates, and current is introduced through the electrolyte medium itself rather than through separate complex components with multiple seals. This eliminates unnecessary components, reduces cost, and improves reliability by removing potential failure points.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The patent extracts and removes the complex intermediate components (rods with multiple seals) from the current introduction path. Instead, current is introduced directly through simplified terminals connected to the electrolyte, eliminating the problematic welded components and multiple seals that reduced reliability and increased cost.

Inventive Principle:

Principle #2Taking out (Extraction)

4Productivity

If additional ducting is used for electrolyte flow, then flow control is provided, but device complexity increases

Engineering Contradiction:

Improveelectrolyte flow efficiencyVSAvoidducting structure complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The separator plates perform multiple functions: they separate electrodes, provide sealing, and serve as flow channels for electrolyte. The plates are designed with integrated flow paths that guide electrolyte movement between electrodes, eliminating the need for separate ducting structures. This multi-functionality maintains electrolyte flow efficiency while reducing device complexity.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS20250075348A1Electrolytic Cell Stack

Publication Date: 2025.03.06 PARKER HANNIFIN CORP

AI summary

An example cell stack assembly includes: a plurality of electrode plates having: (i) respective terminal tabs integrated therewith for providing electric power to the plurality of electrode plates, (ii) and respective ports; and a plurality of separator plates interleaved with the plurality of electrode plates and having respective ports aligned with the respective ports of the plurality of electrode plates to form channels that allow electrolyte flow therethrough, wherein the plurality of electrode plates have locating and orientation features, and wherein the plurality of separator plates have corresponding locating and orientation features that facilitate mounting the plurality of electrode plates to the plurality of separator plates in a unique order and orientation.