Design and development of coating for metallic bipolar plates in proton exchange membrane fuel cell (PEMFC): A review

作者：Jiansheng Liu, Lijie Zhang, Bin Yuan, Ying Zhang, Zan Yang, Jihui Huang · 发表于：Materials & Design · 年份：2024 · DOI：10.1016/j.matdes.2024.113338 · 被引用次数：50 · 研究领域：Fuel Cells and Related Materials、Electrocatalysts for Energy Conversion、Advancements in Solid Oxide Fuel Cells

• The changing requirements and evaluation methods are summarized for metallic bipolar plate coatings. • Hydrophobicity and improved mechanical properties are increasingly critical for metallic bipolar plates. • Insights into the selection of coating material systems are provided. • The material-structure-properties relationship is discussed as the design principle of coatings. • Machine learning prediction and screening is a high-efficiency design method for high-performance coatings. Metallic bipolar plates (BPPs) manufactured by stamping have great commercialization prospects in proton exchange membrane fuel cells (PEMFCs) owing to their significant advantages of low density, small volume, high mechanical strength, and low cost. The development of coatings on metallic BPPs is essential for its application in PEMFCs. However, both the design and preparation of metallic BPP coatings face great challenges of increasing requirements, low efficiency, insufficient performance, and high cost. In present work, the design, manufacture and evaluation of coatings on metallic BPPs are extensively reviewed and explored. The changing requirements including corrosion resistance, conductivity, hydrophobicity, and mechanical properties for metallic BPP coatings and corresponding evaluation methods are comprehensively discussed. Especially, improved mechanical properties are critical for the emerging precoated metallic BBPs. Numerous coatings previously developed are quantitatively compared...