热喷涂制备固体氧化物燃料电池电解质层的研究进展  

Research Progress on Preparation of Solid Oxide Fuel Cells Electrolyte Layer by Thermal Spraying

作　　者：冯潇 赵雪雪 邢亚哲 FENG Xiao;ZHAO Xue-xue;XING Ya-zhe(Engineering Research Center of the Ministry of Education for Pavement Materials,School of Materials Science and Engineering, Chang'an University, Xi'an 710061, China)

机构地区：[1]长安大学材料科学与工程学院道路铺面材料教育部工程研究中心,西安710061

出　　处：《表面技术》2019年第4期10-17,共8页Surface Technology

基　　金：陕西省自然科学基金项目(2016JM5059)~~

摘　　要：分析了固体氧化物燃料电池(SOFC)的发展趋势以及电解质的制备和特性对SOFC的工作温度及导电性的影响,并对SOFC电解质材料的研究现状进行了详细阐述。介绍了热喷涂技术在SOFC电解质材料制备中的技术优势,综述了热喷涂技术在SOFC电解质层材料制备中的应用,并对其进行了总结和展望。通过分析相关研究成果,认为降低工作温度必然成为未来SOFC研究的主要方向之一,而开发更多在中、低温下具有高电导率的电解质材料是未来研究工作的关键。应用最广泛的高温SOFC电解质材料是萤石结构的氧化钇稳定氧化锆,而钙钛矿结构的掺杂镁和锶的镓酸镧是最有前景的中、低温SOFC电解质材料。热喷涂技术具有基体材料不受限制、沉积速度快、灵活、成本低等一系列优点,在SOFC电解质涂层的制备中得到了广泛应用。对于高温SOFC电解质涂层可采用等离子喷涂辅助后处理工艺或直接优化其工艺,从而获得高致密、高电导率的电解质涂层,而中、低温电解质层的热喷涂制备方面的研究还有较大的拓展空间。The development trend of solid oxide fuel cell(SOFC) and the influence of preparation and characteristics of electrolyte on the operating temperature and conductivity of SOFC are analyzed. The research status of SOFC electrolyte materials is elaborated. The advantages of thermal spraying technology in the preparation of SOFC electrolyte layer are introduced.The application of thermal spraying technology in the preparation of SOFC electrolyte layer materials is reviewed, concluded and expected. By analyzing relevant research results, the reduction of the working temperature is bound to become one of the main directions of SOFC research in the future, and the development of electrolyte materials with high conductivity at medium and low temperatures is the key for future research work. The most widely used high temperature SOFC electrolyte material is fluorite structured yttria stabilized zirconia, and the perovskite doped magnesium and lanthanum gallium silicate is the most promising medium and low temperature SOFC electrolyte material. Thermal spraying technology has a series of advantages such as unrestricted matrix material, fast deposition speed, flexibility and low cost, and has been widely used in the preparation of SOFC electrolyte coatings. For high temperature SOFC electrolyte coatings, plasma spray assisted post-treatment processes or direct optimization of the process can be used to obtain highly dense and high-conductivity electrolyte coatings, while there is still large space in research of thermal sprayed medium and low temperature electrolyte layers.

关 键 词：固体氧化物燃料电池 低成本 降低工作温度 电解质 制备方法 热喷涂技术 

分 类 号：TG174.442[金属学及工艺—金属表面处理]