2012 Fiscal Year Final Research Report
High performance gas diffusion layer to enhance the performanceof polymer electrolyte fuel cells under low humidity
| Project/Area Number |
22560202
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Thermal engineering
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| Research Institution | Kyushu University |
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Principal Investigator |
KITAHARA Tatsumi 九州大学, 大学院・工学研究院・機械工学部門, 准教授 (50234266)
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| Project Period (FY) |
2010 – 2012
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| Keywords | 固体高分子形燃料電池 / ガス拡散層 / マイクロポーラス層 / 水管理 / 親水 / 撥水性 / ドライアップ / フラッディング |
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| Research Abstract |
Gas diffusion layers (GDLs) coated with a hydrophobic microporous layer (MPL) have been commonly used to improve the water management property of polymer electrolyte fuel cells (PEFCs). In the present study, a novel hydrophilic and hydrophobic double MPL coated GDL was developed to enhance the PEFC performance under no-humidification at the cathode. The hydrophilic layer is effective to conserve membrane humidity. The hydrophobic intermediate layer between the hydrophilic layer and the substrate prevents the removal of water in the hydrophilic layer.
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