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Title:
FUEL CELL
Document Type and Number:
WIPO Patent Application WO/2018/021423
Kind Code:
A1
Abstract:
A fuel cell (10) comprising a fuel electrode (20), an air electrode (50), and a solid electrolyte layer (30) arranged between the fuel electrode (20) and the air electrode (50). The air electrode (50) contains, as the main component thereof, a perovskite oxide indicated by general formula ABO3 and including at least either La or Sr at the A site thereof. The air electrode (50) has an interface region (52) within 5 µm from the surface (50S) on the solid electrolyte layer (30) side. The interface region (52) includes a main phase comprising the perovskite oxide and a second phase comprising a strontium oxide. The second phase occupies an area of 0.05%-3% of a cross-section of the interface region (52).

Inventors:
OHMORI MAKOTO (JP)
FUJISAKI SHINJI (JP)
Application Number:
PCT/JP2017/027081
Publication Date:
February 01, 2018
Filing Date:
July 26, 2017
Export Citation:
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Assignee:
NGK INSULATORS LTD (JP)
International Classes:
H01M4/86; H01M8/02; H01M8/12
Foreign References:
JP2015038858A2015-02-26
JP2014199807A2014-10-23
JP2014129185A2014-07-10
Attorney, Agent or Firm:
SHINJYU GLOBAL IP (JP)
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