Solid oxide fuel cell

Details Solid oxide fuel cell Solid oxide fuel cell

2005-03-04

2009-08-04

Rhee, Jane (Department: 1795)

Chemistry: electrical current producing apparatus, product, and

Having magnetic field feature

C429S010000, C429S006000, C429S006000, C429S006000

Reexamination Certificate

active

07569292

ABSTRACT:
The present invention provides an electrolyte membrane of a solid oxide fuel cell that excels in output performance. There is provided a solid oxide fuel cell comprising a single cell having an air electrode disposed on a surface of an electrolyte membrane and a fuel electrode disposed on the other surface of the electrolyte membrane, and an interconnector having a role of electrical connection; wherein the electrolyte membrane is provided with a first layer composed of a material having an oxygen-ionic conductivity of S1 on the air-electrode side, and a second layer composed of a material containing at least zirconia and having an oxygen-ionic conductivity of S2 on the fuel-electrode side; and wherein the oxygen-ionic conductivity of S1 on the air-electrode side and the oxygen-ionic conductivity of S2 on the fuel electrode side have a relationship of S1>S2.

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