Home >> International Materials Reviews, Volume 53, Number 1

Recent advances in metallic interconnects for solid oxide fuel cells

Author: Yang, Zhenguo

Source: International Materials Reviews, Volume 53, Number 1, January 2008 , pp. 39-54(16)

Publisher: Maney Publishing

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Abstract:

With the reduction in solid oxide fuel cell (SOFC) operating temperatures into the range 650–800°C, cost effective metallic materials, in particular high temperature oxidation resistant alloys, have become promising candidates, in place of ceramic counterparts, for construction of interconnects in SOFC stacks. For a lifetime of thousands of hours, the alloys must demonstrate excellent surface, structural and electrical stability, and compatibility with other components in SOFC stacks in a very challenging environment. The present paper provides a critical review of metallic interconnects for SOFCs with a focus on recent progress in materials development, as well as advances in understanding materials degradation and interfacial phenomena under the SOFC operating conditions. It also attempts to provide guiding principles for the development of optimised, cost effective metallic interconnect materials that can demonstrate satisfactory life time stability and performance.

Keywords: SOLID OXIDE FUEL CELL; CORROSION; OXIDATION; COATING; HIGH TEMPERATURE MATERIALS; INTERCONNECT

Document Type: Research Article

DOI: http://dx.doi.org/10.1179/174328007X212526

Publication date: 2008-01-01

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