燃料电池电极板材料工艺发展趋势

电极板是燃料电池的关键核心部件，起到分隔气体、提供反应界面、传导电流的作用。根据燃料电池应用工况的不同，电极板的材料选择与制造工艺路线也有所不同。材料工艺是决定燃料电池设计、质量、成本的核心要素。着重论述了金属、石墨、树脂作为电极材料的工艺路线。针对金属电极板材料，论述了车载、航空航天2种工况下不锈钢、钛材的成形设计准则、工艺路线、产品性能，并分析比较了不同成形方法中设备、模具工装和工艺路线的适用性。针对石墨电极材料，对比了硬石墨一次模压成形和柔性板石墨模压成形2种工艺，并根据各自的基材状态选择了合适的工艺路线，同时根据工艺路线的特点分析了产品的优缺点。在复合材料中主要选择了金属、石墨、树脂3种材料，根据制备原理，复合材料双极板有结构复合电极、材料复合电极和工艺复合电极3个研究方向。在结构复合电极方面，主要论述了石墨与金属复合的设计思路和结构特点；在材料复合电极方面，主要论述了热固性树脂和热塑性树脂与石墨复合的工艺路线和产品特点；在工艺复合电极方面，主要论述了微型燃料电池极板的制造理念和方法，并借鉴了微机械加工工艺路线，设计制造了复合工艺极板。最后展望了燃料电池电极板的箔材研发方向、级...

Development Trend of Fuel Cell Electrode Plate Material Process

Electrode plate is a critical core component of fuel cells, which plays the role of separating gas, providing reaction interfaces and conducting current. According to the different application conditions of fuel cells, the selection of electrode plate materials and manufacturing process routes should also be different. Material technology is an essential factor that determines the design, quality, and cost of fuel cells. This article focused on the application direction of metal, graphite, and resin as electrode materials in the process route, discussed the forming design criteria, process routes, and product performance of stainless steel and titanium materials for metal electrode plates under two working conditions of vehicle mounted and aerospace, analyzed and compared the applicability of different forming methods from equipment, mold fixtures to process route arrangements. Two process routes of graphite electrode materials were compared:one-time molding of hard graphite and molding of flexible plate graphite, and appropriate process routes were selected based on their respective substrate states. At the same time, the advantages and disadvantages of the product were analyzed based on the characteristics of the process routes. Metal, graphite and resin were mainly selected to be made into composite bipolar plates, which could be divided into three research directions based on the preparation principle:structural composite electrodes, material composite electrodes, and process composite electrodes. The design concept and structural characteristics of graphite metal composites were mainly discussed in the structural composite electrode. The process route and product characteristics of thermosetting resin and thermoplastic resin composites with graphite of the material composite electrodes were mainly discussed. In the process of composite electrodes, the manufacturing concept and method of micro fuel cell plates were mainly discussed. Composite process plates were designed and manufactured based on the MEMS manufacturing process route. Finally, the research and development direction of foils for fuel cell electrode plates was expected, the production development direction of progressive die process compound and the dialectic route between hard graphite and flexible graphite in graphite route, and the application of conductive anode materials such as PPS and polyaniline based PANI in microelectrodes was also predicted.