Journal Article

PreJuSER-12698

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Anode-supported planar SOFC with high performance and redox stability

Ma, Q.FZJ* ; Tietz, F.FZJ* ; Leonide, A. ; Ivers-Tiffée, E.

2010
Elsevier Science Amsterdam [u.a.]

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Please use a persistent id in citations: doi:10.1016/j.elecom.2010.07.011

Abstract: Solid oxide fuel cells with full ceramic anodes have recently attracted increasing attention, because the conventional Ni/YSZ cermet anodes may fail during practical operation due to their weak mechanical stability in the case of re-oxidation of the nickel. However, until now the reported fuel cells based on ceramic anodes have been fabricated only as small pellet-sized cells and electrochemical performance has been barely satisfactory, making it difficult to evaluate these attempts with respect to commercial feasibility. Herein, we report single cells based on Y-substituted SrTiO3 anode substrates. These planar cells have outer dimensions of 50 x 50 mm(2), which has not been reached for a ceramic anode-supported cell before. They show power densities of 0.7-1.0W cm(-2) at 0.7 V and 800 degrees C, which are sufficient for technical applications. The cells survived 200 anode-gas changes between fuel and air (redox cycles), providing a new direction for the development and commercialisation of anode-supported solid oxide fuel cells.

Keyword(s): J ; Donor-doped strontium titanate (auto) ; Solid oxide fuel cells (auto) ; Anode material (auto) ; Redox (auto)

Note: This work was financially supported by the European Commission under contract no. SES6-CT-2006-020089 as part of the Integrated Project "SOFC600".

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Contributing Institute(s):

1. Werkstoffsynthese und Herstellverfahren (IEK-1)

Research Program(s):

1. Rationelle Energieumwandlung (P12)
2. SOFC - Solid Oxide Fuel Cell (SOFC-20140602) (SOFC-20140602)

Appears in the scientific report 2010

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