Asymmetric Redox Flow Battery Frame Resists Deformation
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Solution Overview
Problem
Redox flow battery frame bodies tend to deform under pressure, especially when subjected to high electrolyte flow rates, due to insufficient rigidity, which can lead to damage and leakage of electrolytes.
Innovation Solution
A redox flow battery frame body with a specific geometric configuration, where A > C, B > D, and (B/A) ≥ 0.2, is designed to enhance rigidity and resistance to deformation, featuring a broad horizontal frame and through holes for reinforcement, ensuring the frame body remains stable under fluid pressure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the frame body is made with a conventional design, then the battery can be assembled, but the frame body deforms under high fluid pressure from high electrolyte flow rates
Solution Approach 1:
The frame body employs an asymmetric design where the horizontal frame width B is made significantly larger than the vertical frame width D, with the ratio B/A ≥ 0.2. This asymmetric geometry provides enhanced rigidity in the horizontal direction to resist deformation from fluid pressure while maintaining the necessary vertical clearance for electrode assembly.
Solution Approach 2:
The invention changes the geometric parameters of the frame body, specifically setting the horizontal frame width B to be at least 0.2 times the window length A, and ensuring B > D. This parameter optimization allows the frame to withstand high fluid pressures from high electrolyte flow rates without deforming, thus enabling higher productivity.
2Strength
If the frame body width is increased to prevent deformation, then pressure resistance improves, but the battery size and weight increase
Solution Approach 1:
The frame body applies local quality by concentrating the increased width B specifically in the horizontal direction where it is most needed to resist fluid pressure, while keeping the vertical dimension D minimal. This localized enhancement provides maximum pressure resistance with minimum additional weight.
Solution Approach 2:
By making the horizontal frame width B asymmetrically larger than the vertical frame width D (with B/A ≥ 0.2), the design achieves optimal pressure resistance in the critical horizontal direction without proportionally increasing weight in all directions.
3Strength
If the frame body width is increased to prevent deformation, then pressure resistance improves, but the battery occupies more space
Solution Approach 1:
The frame body applies local quality by concentrating the increased width B specifically in the horizontal direction where it is most needed to resist fluid pressure, while keeping the vertical dimension D minimal. This localized enhancement provides maximum pressure resistance with minimum additional volume.
Solution Approach 2:
By making the horizontal frame width B asymmetrically larger than the vertical frame width D (with B/A ≥ 0.2), the design achieves optimal pressure resistance in the critical horizontal direction without proportionally increasing volume in all directions.
4Volume of moving object
If a narrow frame design is used, then the battery size is minimized, but the frame body deforms under fluid pressure
Solution Approach 1:
The frame body employs an asymmetric design where the horizontal frame width B is made significantly larger than the vertical frame width D, with the ratio B/A ≥ 0.2. This asymmetric geometry provides enhanced rigidity in the horizontal direction to resist deformation from fluid pressure while maintaining the necessary vertical clearance for electrode assembly.
Solution Approach 2:
The invention changes the geometric parameters of the frame body, specifically setting the horizontal frame width B to be at least 0.2 times the window length A, and ensuring B > D. This parameter optimization allows the frame to withstand high fluid pressures from high electrolyte flow rates without deforming, thus enabling higher productivity.
Data Source
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AI summary
A frame body for a redox flow battery is provided with a window. The expressions A > C, B > D, and (B/A) ≥ 0.2 are satisfied, where A represents the length of a long side of a rectangle that envelops the window, B represents the width of a horizontal frame corresponding to the long side, C represents the length of a short side of the rectangle, and D represents the width of a vertical frame corresponding to the short side.