2023 Fiscal Year Final Research Report
Water-free polymer electrolyte fuel cell with active humidity control
| Project/Area Number |
21K03917
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Review Section |
Basic Section 19020:Thermal engineering-related
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| Research Institution | Kyushu Institute of Technology |
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Principal Investigator |
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| Project Period (FY) |
2021-04-01 – 2024-03-31
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| Keywords | 固体高分子形燃料電池 / 多孔質 / 調湿性 / 格子ガス法 |
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| Outline of Final Research Achievements |
As a moisture management technology for further increasing the output power of polymer electrolyte fuel cells and simplifying the system, we have developed a new type of polymer electrolyte fuel cell with a cathode side gas channel composed of a porous humidity conditioning material that "has a humidity conditioning effect and collects excess product water on its own, which is then used for humidifying the oxidation gas". Experiments and numerical analysis for the development of a polymer electrolyte water-free fuel cell and verification of its miniaturization and high performance have shown that fiber-based humidity-controlling material is suitable as a porous humidity-controlling material. The flow channel structure with two serpentine-type flow paths and a gas inlet on the inside has the best water retention property and has the potential for higher output.
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| Free Research Field |
熱工学
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| Academic Significance and Societal Importance of the Research Achievements |
固体高分子形燃料電池のさらなる出力アップとシステムの簡素化のための水分管理技術として，カソード側のガス流路を，“調湿効果を有し勝手に余剰生成水を回収し，さらに酸化ガスの加湿に利用”する多孔性調湿素材で構成された固体高分子形ウオーターフリー燃料電池を開発は更なる固体高分子形燃料電池の普及が促進すると考えられる．また，多孔性調湿ガス流路の水分挙動解明は調湿を必要とする空調分野への応用も考えられ学術的な波及効果は大きい．
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