氢燃料电池金属双极板涂层技术的发展趋势研究  

Research on the development trend of coating technology for metallic bipolar plate in hydrogen cell

作　　者：孙华 史耀君 周华杉 朱文婷 夏少华 李灵敏 SUN Hua;SHI Yaojun;ZHOU Huashan;ZHU Wenting;XIA Shaohua;Li Lingmin(CRRC Qishuyan Institute Co.,Ltd.,Changzhou,Jiangsu 213011,China;Yangzhou Vocational University,Yangzhou,Jiangsu 225009,China)

机构地区：[1]中车戚墅堰机车车辆工艺研究所股份有限公司,江苏常州213011 [2]扬州市职业大学,江苏扬州225009

出　　处：《轨道交通材料》2025年第2期7-12,共6页Materials for Rail Transportation System

基　　金：中车重大项目(2023CXA238)。

摘　　要：质子交换膜燃料电池(PEMFCs)高电势、高酸性和高温高湿的工作环境,对金属双极板部件的实际应用产生了挑战。文章从经济性和可靠性的角度出发,结合目前金属双极板发展现状,深入探讨了金属双极板基板材料和涂层材料两方面的不同技术路线,对比了用于金属双极板表面改性的多类型涂层(贵金属涂层、过渡金属氮化物涂层、过渡金属氧化物涂层和碳基涂层等)在耐腐蚀性能和接触电阻(ICR)等关键指标方面的差异,分析了各种改性涂层的耐腐蚀机制和涂层结构设计,并对金属双极板未来发展方向进行了展望。The high potential,high acidity,and high temperature,high humidity working environment of proton exchange membrane fuel cells(PEMFCs)pose challenges to the practical application of the metallic bipolar plate assembly.From the perspective of econo⁃my and reliability,combined with current development status of metallic bipolar plates,this paper elaborates different technical routes of substrate materials and coating materials for the metallic bipolar plates.The differences in key indicators,including corrosion resist⁃ance and contact resistance(ICR)of various coatings(precious metal coatings,transition metal nitride coatings,transition metal oxide coatings and carbon-based coatings)used for surface modification of the metal bipolar plates,are compared,and the corrosion resist⁃ance mechanism and coating structure design of various modified coatings are analyzed,along with an outlook on the future development direction of metal bipolar plates.

关 键 词：质子交换膜燃料电池 金属双极板 碳基涂层 耐腐蚀性 接触电阻 

分 类 号：U270.381[机械工程—车辆工程]