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Gas Diffusion Layer for Proton Exchange Membrane Fuel Cells: A Review

期刊

MATERIALS
卷 15, 期 24, 页码 -

出版社

MDPI
DOI: 10.3390/ma15248800

关键词

proton exchange membrane fuel cell; gas diffusion layer; macroporous substrate; microporous layer; water management; gas diffusion; carbon fiber

资金

  1. National Key R&D Program of China
  2. Natural Science Foundation of Jiangsu Province
  3. Key Technology Initiative of Suzhou Municipal Science and Technology Bureau
  4. Project of Innovation and Entrepreneurship of Jiangsu Province
  5. [2020YFB1505703]
  6. [BK20211071]
  7. [SYG202011]
  8. [JSSCRC2021526]

向作者/读者索取更多资源

This article provides a brief review on the gas diffusion layer (GDL) in proton exchange membrane fuel cells (PEMFCs). The GDL plays a crucial role in connecting bipolar plates and catalyst layers, facilitating gas diffusion and drainage, and providing mechanical support to the membrane electrode assemblies.
Proton exchange membrane fuel cells (PEMFCs) are an attractive type of fuel cell that have received successful commercialization, benefitted from its unique advantages (including an all solid-state structure, a low operating temperature and low environmental impact). In general, the structure of PEMFCs can be regarded as a sequential stacking of functional layers, among which the gas diffusion layer (GDL) plays an important role in connecting bipolar plates and catalyst layers both physically and electrically, offering a route for gas diffusion and drainage and providing mechanical support to the membrane electrode assemblies. The GDL commonly contains two layers; one is a thick and rigid macroporous substrate (MPS) and the other is a thin microporous layer (MPL), both with special functions. This work provides a brief review on the GDL to explain its structure and functions, summarize recent progress and outline future perspectives.

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