Flat Plate SOFC Stack Unit Modular Assembly Design
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Solution Overview
Problem
Conventional solid oxide fuel cell (SOFC) stack assembly is complex and results in larger-size cell stacks with low electric generation per unit volume, limiting the efficiency and portability of SOFC systems.
Innovation Solution
A flat plate type solid oxide fuel cell stack unit and module design featuring an anode plate, cathode plate, cell unit, anode and cathode metal nets, and sealing materials, allowing for reduced size, high efficiency, and easy assembly with modular stack arrangement, enhancing the SOFC system's competitiveness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If conventional SOFC stack assembly methods are used with multiple laminated units, end plates, panel frames, seal materials and metal contact layers, then the stack can produce more electricity through serial connections, but the assembly process becomes complicated and the stack size increases resulting in low electric generation per unit volume
Solution Approach 1:
The patent merges multiple separate components (end plates, panel frames, cell units, seal materials, and metal contact layers) into an integrated flat plate structure. The anode plate and cathode plate are directly connected through the cell unit, eliminating the need for separate laminating steps and reducing assembly complexity while maintaining electrical connectivity through the integrated design.
Solution Approach 2:
The stack is divided into modular flat plate units that can be independently manufactured and then assembled. Each flat plate unit contains complete functional elements (anode, cathode, electrolyte, seals, and flow channels), allowing for simplified assembly by stacking pre-assembled modules rather than laminating individual components.
2Power
If conventional SOFC stack assembly methods are used with multiple laminated units, end plates, panel frames, cell units, seal materials and metal contact layers, then the stack can produce more electricity through serial connections, but the stack size increases resulting in low electric generation per unit volume
Solution Approach 1:
The patent merges multiple separate components (end plates, panel frames, cell units, seal materials, and metal contact layers) into an integrated flat plate structure. The anode plate and cathode plate are directly connected through the cell unit, eliminating the need for separate laminating steps and reducing assembly complexity while maintaining electrical connectivity through the integrated design.
Solution Approach 2:
The design nests multiple functional layers (anode, electrolyte, cathode, seals, and flow channels) within a compact flat plate structure. The cell unit is positioned between the anode and cathode plates with sealing and electrical contact features integrated into the same assembly, creating a space-efficient nested configuration that maximizes power density.
3Ease of manufacture
If conventional SOFC stack assembly methods are used, then the manufacturing process can accommodate standard production techniques, but the assembly process is complicated and requires multiple components
Solution Approach 1:
The patent merges multiple separate components (end plates, panel frames, cell units, seal materials, and metal contact layers) into an integrated flat plate structure. The anode plate and cathode plate are directly connected through the cell unit, eliminating the need for separate laminating steps and reducing assembly complexity while maintaining electrical connectivity through the integrated design.
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
The design achieves minimized volume, high efficiency, and easy assembly, enabling the SOFC system to meet various generation system specifications, improving electric generation per unit volume and facilitating modular variations.
Implementation Method 1
The solid oxide fuel cell (SOFC) is an energy conversion apparatus that utilizes the electrochemical reaction to convert the fuel into the respective electric energy for output.
Data Source
AI summary
A flat plate type solid oxide fuel cell stack module is obtained by stacking a plurality of flat plate type solid oxide fuel cell stack units. Each of the cell stack unit comprises an anode plate, a cell unit and a cathode plate. The anode plate has a first flow channel, four corner first fuel input holes and a central first fuel output hole. The cathode plate has a second flow channel, a plurality of lateral second air input grooves and a plurality of lateral second air output grooves. The cell unit includes an anode layer, a cathode plate, four corner third fuel input holes and a central third fuel output hole. An anode mental net and an anode sealing material are disposed between the anode plate and the cell unit, a cathode mental net and a cathode sealing material are disposed between the cathode plate and the cell unit.