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US 5,591,537 AGranted
Solid oxide fuel cell
AssigneeForskningscenter RIS.O slashed.
InventorsCarsten Bagger, Bruno Kindl, Mogens Mogensen
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Abstract
A solid oxide fuel cell includes a cathode, a YSZ-electrolyte, and an anode, where the cathode is formed by a mixture of LSM and YSZ. According to the invention the content in the cathode of YSZ amounts to 20 to 75% by weight, whereby it is possible to reduce the polarisation resistance to 0,08.OMEGA.cm.sup.2 at 40 mV. Furthermore, a mechanically stable structure is obtained.
Claims5
A solid oxide fuel cell, comprising:
- a cathode,
- a yttrium stabilized zirconium oxide--electrolyte, and
- an anode,
- where the cathode is a mixture of La.sub.1-x Sr.sub.x MnO.sub.3 and yttrium stabilized zirconium oxide, the yttrium stabilized zirconium oxide of the cathode amounting to 20 to 75% by weight, and the yttrium stabilized zirconium oxide content of the cathode containing less Y.sub.2 O.sub.3 than the yttrium stabilized zirconium oxide content of the electrolyte, wherein 0<x<1.
1 more element
Dependencies are inferred from the claim text.