Conventional fuel cell flow field designs often cause uneven mass flow distribution, resulting in inconsistent current production and faster Membrane Electrode Assembly (MEA) degradation. They also fail to manage internal humidification effectively, impacting the cell's electrochemical performance and efficiency
This invention presents a novel flow field design with a flow divider for a fuel cell stack. It integrates rectangular porous inserts within the flow channels to ensure uniform distribution of reactants and effective humidification using internally generated water. This design addresses the challenges of uneven mass flow distribution and inefficient water management in fuel cells, enhancing overall performance and longevity.
- Rectangular porous inserts within flow channels ensure uniform gas distribution, leading to consistent current production across cells
- Enhanced turbulence and diffusion rates for better electrochemical reactions
- Suitable for both anode and cathode plates, distributing hydrogen and air respectively
- Constructed from SS316L, Carbon-coated strips, and Titanium grade 2, reducing the overall weight of the fuel cell module
- Effective heat management through double serpentine coolant channels
- Integration of porous glass matrix and polymer materials enhances water removal, preventing flooding
- Counter-flow configuration enhances water crossover and humidification, eliminating the need for external humidifiers
- Easy-to-assemble design with built-in sections for multiple functions
Prototypes of the fuel cell stack incorporating the novel flow field design have been developed and tested. These prototypes showcase the enhanced uniformity in gas distribution and effective internal humidification, confirming the advantages of the innovative design.
The technology is in the prototyping stage, demonstrating significant improvements in fuel cell performance and efficiency in initial tests. Further development and optimization are ongoing to prepare for commercial applications.
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By enabling cleaner and more efficient fuel cell technology, this invention has the potential to contribute to reduced reliance on fossil fuels and a more sustainable future.
Automotive industry, Energy sector
Fuel cell vehicles, Stationary fuel cell systems, Portable fuel cell applications, Renewable energy systems
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