中文摘要：

随着固体氧化物燃料电池（SOFC）的工作温度从1000℃降低到600-800℃，铁素体不锈钢成为SOFC连接体材料的最佳选择，但在高温氧化气氛下，氧化层快速生长以及cr的毒化问题使得电池堆性能大大降低。目前，主要的解决方式是在基体材料表面涂镀保护膜层和材料改性。前者由于生产简单、成本低成为当前研究热点。本文主要介绍金属连接体保护膜的分类和研究现状，并探讨各膜层材料的优缺点及发展前景。

英文摘要：

With the solid oxide fuel cells （SOFC） operation temperature reduced from 1000℃ to 600-800℃, Fe-based ferritic stainless steels was the best candidate for SOFC interconnect applications. However, rapid scale growth and the volatility of Cr led to significant SOFC performance degradation. Two solutions were suggested to solve the problem, i.e. applying surface protective coating and bulk material modification, and the former one was considered as potential remedy due to its low cost and easy fabrication. The focus of this paper was to categorize the current coatings for interconnects, as well as the characteristics and prospects of coatings.