Ceramic materials for interconnects in solid oxide fuel cells - A review 고체산화물 연료전지 연결재용 세라믹 소재

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An interconnect in solid oxide fuel cells (SOFCs) electrically connects unit cells and separates fuel from oxidant in the adjoining cells. The interconnects can be divided broadly into two categories - ceramic and metallic interconnects. A thin and gastight ceramic layer is deposited onto a porous support, and metallic interconnects are coated with conductive ceramics to improve their surface stability. This paper provides a short review on ceramic materials for SOFC interconnects. After a brief discussion of the key requirements for interconnects, the article describes basic aspects of chromites and titanates with a perovskite structure for ceramic interconnects, followed by the introduction of dual-layer interconnects. Then, the paper presents protective coatings based on spinelor perovskite-type oxides on metallic interconnects, which are capable of mitigating oxide scale growth and inhibiting Cr evaporation.
Publisher
Korean Ceramic Society
Issue Date
2014-07
Language
English
Citation

JOURNAL OF THE KOREAN CERAMIC SOCIETY, v.51, no.4, pp.231 - 242

ISSN
1229-7801
URI
http://hdl.handle.net/10203/198997
Appears in Collection
MS-Journal Papers(저널논문)
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