Chemistry: electrical current producing apparatus – product – and – Fuel cell – subcombination thereof – or method of making or... – Fuel cell with solid electrolyte
Reexamination Certificate
2011-03-29
2011-03-29
Kalafut, Stephen J. (Department: 1727)
Chemistry: electrical current producing apparatus, product, and
Fuel cell, subcombination thereof, or method of making or...
Fuel cell with solid electrolyte
C429S489000, C429S495000, C429S535000
Reexamination Certificate
active
07914941
ABSTRACT:
An electric power generation cell1is constituted by arranging a fuel electrode layer4on one side of a solid electrolyte layer3and an air electrode layer2on the other side of the solid electrolyte layer3. The solid electrolyte layer3is constituted of an oxide ion conductor mainly composed of a lanthanum gallate based oxide. The fuel electrode layer4is constituted of a porous sintered compact having a highly dispersed network structure in which a skeletal structure formed of a consecutive array of metal grains is surrounded by mixed conductive oxide grains. For the air electrode layer2, a porous sintered compact mainly composed of cobaltite is used. This configuration reduces the overpotentials of the respective electrodes and the IR loss of the solid electrolyte layer3, and accordingly can actualize a solid oxide type fuel cell excellent in electric power generation efficiency.
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Adachi Kazunori
Fukui Takehisa
Hoshino Koji
Hosoi Kei
Inagaki Toru
Japan Fine Ceramics Center
Kalafut Stephen J.
Mitsubishi Materials Corporation
The Kansai Electric Power Co.
Wenderoth , Lind & Ponack, L.L.P.
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