Modular Electrolyser Cell Stack Layout for Scalable Compression
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Solution Overview
Problem
The production, shipping, and installation of large-scale electrolyser cell stacks for industrial applications are costly and complex due to individually customized components and lack of standardization, leading to high manufacturing and maintenance costs.
Innovation Solution
The electrolyser cell stack is designed with a plurality of smaller sub-stacks arranged within a pair of compression plates, allowing for a common compression mechanism and simplified manufacturing, shipping, and installation, while maintaining a large-scale system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If large-scale electrolyser cell stacks are designed by simply scaling up previous designs, then the active area for electrochemical reaction is increased, but manufacturing costs and complexity increase significantly
Solution Approach 1:
The electrolyser cell stack is divided into multiple smaller sub-stacks, each with its own compression plates. This segmentation allows for standardized mass production of smaller components while achieving large total active area through parallel arrangement of multiple sub-stacks, thereby reducing manufacturing complexity and cost.
2Productivity
If large-scale electrolyser cell stacks are designed by scaling up, then hydrogen production capacity is increased, but shipping and installation handling becomes complicated and expensive
Solution Approach 1:
The stack is segmented into multiple smaller sub-stacks that can be manufactured, shipped, and installed as separate modular units. These modules are then assembled on-site to achieve the required large-scale hydrogen production capacity, significantly improving logistics and installation ease.
3Reliability
If individually customized components are used in large-scale electrolyser systems, then system performance requirements are met, but overall costs before launch and maintenance are much higher
Solution Approach 1:
The compression plates and other components are designed as universal standardized parts that can be used across multiple sub-stacks. This universality enables mass production at lower costs while maintaining the required system performance through proper design and configuration.
Solution Approach 2:
By segmenting the system into standardized sub-stacks with common components, the invention enables mass production of identical units, thereby reducing per-unit costs through economies of scale while maintaining reliable performance.
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 design reduces production costs, simplifies handling and shipping, and enhances maintenance efficiency by utilizing smaller, redundant components that can be easily produced and handled, resulting in cost-effective industrial electrolyser systems.
Implementation Method 1
a compression system for mechanically compressing from an outside, all components of the electrochemical system and eventually the components of the electrical system in a stacking direction
Implementation Method 2
the electrochemical reaction of water for achieving a correspondingly large yield of hydrogen as the reaction product of interest
Data Source
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AI summary
The present invention relates to an electrolyser cell stack (100) for producing a hydrogen-based e-fuel, including an electrochemical system (10) with a plurality of electrolyser cells for an electrochemical reaction of water with electric power, an electrical system (20) for supplying electric power to the stacked electrolyser cells, and a compression system (30) with compression plates (33) for compressing at least the electrochemical system (10) in a stacking direction (D). According to the invention, the electrochemical system (10) is divided into at least two parallel stacked sub-stacks (11) of the electrolyser cells arranged within an area (A) of the compression plates (33), for a common compression of all sub-stacks (11) by the same compression system (30).