质子交换膜燃料电池双极板防护涂层研究进展  

Research Progress on Protective Coatings for Bipolar Plates of Proton Exchange Membrane Fuel Cells

作　　者：孙贤伟 李希超 赵经香 王敬豪 刘飞 赵培文[1,2,3] 戴作强 郑莉莉[1,2,3] SUN Xian-wei;LI Xi-chao;ZHAO Jing-xiang;WANG Jing-hao;LIU Fei;ZHAO Pei-wen;DAI Zuo-qiang;ZHENG Li-li(College of Mechanical and Electrical Engineering,Qingdao University,Shandong Qingdao 266071,China;Power Integration and Energy Storage System Engineering Technology Center,Qingdao University,Shandong Qingdao 266071,China;National and Local Joint Engineering Technology Center for Intelligent Power Integration Technology of Electric Vehicles(Qingdao),Qingdao University,Shandong Qingdao 266071,China)

机构地区：[1]青岛大学机电工程学院,山东青岛266071 [2]青岛大学动力集成及储能系统工程技术中心,山东青岛266071 [3]青岛大学电动汽车智能化动力集成技术国家地方联合工程技术中心(青岛),山东青岛266071

出　　处：《表面技术》2023年第5期26-36,共11页Surface Technology

基　　金：国家自然科学基金青年基金(52001179);山东省自然科学基金面上项目(ZR2020ME019)。

摘　　要：质子交换膜燃料电池(PEMFC)作为第4代发电技术,具有结构紧凑、体积小、能量密度高、效率高、启动快、低温运行以及零排放的绝对优势,被认为是现阶段理想的清洁能源之一,是未来新能源汽车理想的供能部件,受到各国学者的广泛关注。双极板作为PEMFC重要的组成部件之一,不仅能够将单电池串联、并联或是混合联结形成电池堆,起到支撑作用,还能够隔绝阴极、阳极的反应气体,排出电池堆反应产生的热量和水,对PEMFC电池堆的性能至关重要。合适的双极板材料要具有优异的导电性和耐腐蚀性,已成为PEMFC研究领域的一个热点。简述了PEMFC的工作原理以及近年来石墨双极板、金属双极板以及复合双极板的研究情况,指出了PEMFC在工作条件下对金属双极板的性能要求及改性难题。着重对不锈钢双极板的表面涂层改性进行了研究,列举了碳基涂层、金属及其化合物涂层、导电高分子聚合物涂层、疏水涂层等一系列涂层的研究进展和性能,分析对比了它们在PEMFC双极板表面改性中的优缺点。分析结果表明,过渡金属碳、氮化物以及碳/陶瓷复合涂层具有良好的导电性和耐蚀性且成本较低,是当前以及未来的研究热点,同时如何增强涂层与基体的结合力,也是今后双极板表面改性的发展方向。As the fourth generation of power generation technology,proton exchange membrane fuel cell(PEMFC)has absolute superiority in terms of compact structure,small size,high energy density,high efficiency,fast start,low temperature operation,and zero emission.It is considered as one of the most ideal clean energies at present,and is the ideal power component for new energy vehicles in the future,thus having received extensive attention from scholars.As one of the most important components of PEMFC,Bipolar plates not only can connect single batteries in series,parallel or series-parallel to form a battery stack and play a supporting role,but can isolate the reaction gas of cathode and anode and discharge the heat and water generated by the reaction of the battery stack,which is very important to the performance of PEMFC battery stack.Suitable bipolar plate materials with excellent electrical conductivity and corrosion resistance have become a hotspot in PEMFC research.In this paper,different bipolar plates were introduced.Graphite bipolar plate has become the traditional bipolar plate material with its excellent performance,and is currently the most studied and applied bipolar plate material.However,its high processing difficulty and high cost limit its commercial development,so it has been gradually replaced by metal bipolar plate.Compared with graphite,metal bipolar plate has higher workability.It can be ultra-thin and has a very high volume ratio power and mass ratio power.However,metal is prone to corrosion in PEMFC acidic environment and produces passivation film,which increases the contact resistance of electrode and bipolar plate surface and reduces its electrical conductivity,thereby seriously affecting the performance of battery stack.Accordingly,it is necessary to take measures to ensure its corrosion resistance and durability to prolong the service life of the battery.This paper focused primarily on the surface coating modification of stainless steel bipolar plates.The research progress and properties of a se

关 键 词：质子交换膜燃料电池 双极板 涂层 导电性 腐蚀 

分 类 号：TM911.4[电气工程—电力电子与电力传动]