引用本文:杜柯,宋琛,余敏,刘太楷,杨成浩,刘敏.等离子喷涂制备固体氧化物燃料电池电解质涂层研究进展*[J].中国表面工程,2022,35(1):25~33
DU Ke,SONG Chen,YU Min,LIU Taikai,YANG Chenghao,LIU Min.Research Status of Preparation of Solid Oxide Fuel Cell Electrolyte by Plasma Spray[J].China Surface Engineering,2022,35(1):25~33
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等离子喷涂制备固体氧化物燃料电池电解质涂层研究进展*
杜柯1,2, 宋琛2, 余敏1, 刘太楷2, 杨成浩3, 刘敏2
1.西南交通大学材料科学与工程学院 成都 610031;2.广东省科学院新材料研究所现代材料表面工程技术国家工程实验室 广州 510650;3.华南理工大学环境与能源学院 广州 510006
摘要:
等离子喷涂作为一种高性价比的涂层沉积工艺，在固体氧化物燃料电池(SOFC)电解质制备方面比传统方式更灵活、 高效，尤其在大面积电解质快速成形上，表现出良好的发展潜力。介绍 SOFC 的工作原理和研究趋势，综述电解质材料及等离子喷涂制备工艺的研究进展，指明等离子喷涂制备 SOFC 电解质涂层的发展方向。研究表明：氧化钇、氧化钪稳定的氧化锆是目前商业化应用最广泛的电解质材料，其他如氧化铈基及氧化铋基电解质还须解决还原气氛下价态变化问题，而镧锶镓镁氧化物和硅酸盐电解质则需解决成分和结构稳定性问题。在制备方面，传统湿化学法的高温烧结过程难以制备金属支撑型 SOFC，磁控溅射和气相沉积等镀膜技术成本高、效率低，不适合电解质大规模生产。而等离子喷涂技术具有沉积效率高， 对基体热输入小，可灵活调控涂层微观结构等优势。等离子喷涂 SOFC 电解质还存在较大探索空间，基于前期相关工作为后续中低温电解质制备及优化提供思路，随着电解质粉末成本下降及喷涂设备迭代升级，等离子喷涂技术有望在未来成为大规模高效制备 SOFC 电解质涂层的重要手段。
关键词:  固体氧化物燃料电池  电解质  等离子喷涂
DOI：10.11933/j.issn.1007-9289.20210828001
分类号:TG174;TM911
基金项目:国家重点研发计划(2018YFB1502603)；广州市科技计划(202007020008)；广东省对外合作平台(2020A050519001)；广州市产学研协同创新重大专项“燃气轮机关键零部件表面处理及微修”资助项目
Research Status of Preparation of Solid Oxide Fuel Cell Electrolyte by Plasma Spray
DU Ke1,2, SONG Chen2, YU Min1, LIU Taikai2, YANG Chenghao3, LIU Min2
1.School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031 , China;2.National Engineering Laboratory for Modern Materials Surface Engineering Technology,Institute of New Materials, Guangdong Academy of Sciences, Guangzhou 510650 ,China;3.School of Environment and Energy, South China University of Technology, Guangzhou 510006 , China
Abstract:
Plasma spraying has high potential for growth in solid oxide fuel cell (SOFC) electrolyte preparation as a cost-effective coating deposition procedure which is more versatile and efficient than conventional methods, notably for quick fabrication of large-scale electrolyte. This paper discusses the working principle and research trends of SOFCs, emphasizes investigate accomplishments in electrolyte materials and the plasma spraying preparation method, and points to the future development direction of SOFC electrolyte coating deposited by plasma spraying. The most widely used electrolyte materials for commercial applications are yttrium oxide and scandium oxide stabilized zirconium oxide, while other electrolytes such as cerium oxide and bismuth oxide still need to solve the problem of valence change under reducing atmosphere and lanthanum strontium gallium oxide and silicate electrolytes lack of composition and structural stability. In terms of preparation, the traditional wet chemical method of high-temperature sintering is difficult to use to make metal-supported SOFCs, and coating technologies like magnetron sputtering and vapor deposition are expensive and inefficient, making them unsuitable for mass production of electrolytes. Plasma spraying technique provides the benefits of high deposition efficiency, minimal substrate heat input, and flexible coating microstructure adjustment. With the decline in the cost of electrolyte powder and iterative upgrading of spraying equipment, plasma spraying technology is expected to become an important means of large-scale and efficient preparation of SOFC electrolyte coating in the future, based on preliminary work to provide ideas for the subsequent preparation and optimization of low and medium temperature electrolyte. With the decline in the cost of electrolyte powder and iterative upgrading of spraying equipment, plasma spraying technology is expected to become an important means of large-scale.
Key words:  solid oxide fuel cell  electrolyte  plasma spray
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