Segmented Frame Design for Efficient Redox Flow Batteries
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Summary
Problems
Current redox flow battery technologies face issues with membrane fouling, cross-contamination of electrolyte solutions, electrical shunt paths, and increased fluid resistance, which hinder efficiency and manufacturing cost reduction.
Innovation solutions
The implementation of a redox flow battery with a segmented frame plate assembly that increases flatness and decreases manufacturing tolerances, allowing for a higher number of stacked cell plates and improved heat exchange and thermal management, coupled with manifold inserts for efficient electrolyte solution circulation.
TRIZ Analysis
Specific contradictions:
General conflict description:
Principle concept:
If a single-piece frame is used, then manufacturing is simpler, but flatness and manufacturing tolerances deteriorate
Why choose this principle:
The frame is divided into multiple segments that can be manufactured separately with relaxed tolerances and then assembled together. This segmentation allows each individual frame piece to be manufactured with easier tolerances while the assembled frame achieves the required overall flatness and precision through the modular connection design.
Principle concept:
If more frame plate assemblies are stacked together, then cell stack density increases, but unevenness and bulging increase
Why choose this principle:
The frame is segmented into multiple components that can be precisely manufactured and assembled. This segmentation allows for better control of each component's dimensions and geometry, ensuring that when multiple frame plate assemblies are stacked, they maintain uniformity and prevent bulging while achieving high cell stack density.
Application Domain
Data Source
AI summary:
The implementation of a redox flow battery with a segmented frame plate assembly that increases flatness and decreases manufacturing tolerances, allowing for a higher number of stacked cell plates and improved heat exchange and thermal management, coupled with manifold inserts for efficient electrolyte solution circulation.
Abstract
A segmented frame plate is provided, which may be used in a frame plate assembly of a redox flow battery cell stack. A plurality of segmented frame plates may couple together around a perimeter of a cell plate. Each segmented frame plate may provide fluidic communication from/to a redox flow reservoir and/or another frame plate assembly to a cell plate of the frame plate assembly.