Kyocera Corporation

Akihiro Hara

Yuuichi Hori

Masahiko Higashi

Makoto Koi

Tetsuro Fujimoto

Hidehiro Minamiue

Atsuki Yamaguchi

Kazuki Hirao

An intermediate layer containing CeOwith which a rare earth element (excluding Ce) forms a solid solution and a first electrode layer may be disposed in this order on a surface on one side of a solid electrolyte layer containing Zr, and a second electrode layer may be disposed on a surface on another side opposite the surface of the one side of the solid electrolyte layer. The intermediate layer includes a first layer located closer to the solid electrolyte layer and a second layer disposed on the first layer and located closer to the first electrode layer, and a concentration of the rare earth element of the first layer may be greater than a concentration of the rare earth element of the second layer.

Cell, cell stack device, module, and module housing device

A cell according to the present disclosure includes: a first electrode layer; a solid electrolyte layer on the first electrode layer, the solid electrolyte layer containing Zr; a middle layer on the solid electrolyte layer, the middle layer containing CeOwhich contains Ce and a rare earth element other than Ce; a second electrode layer on the middle layer; and a boundary region between the solid electrolyte layer and the middle layer, the boundary region including a basing point at which a molarity of Ce and a molarity of Zr are equal. An average molarity of the Ce within a range from the basing point up to 3 μm toward the solid electrolyte layer is equal to or less than 10 mol % with respect to a total of Ce, Zr, and other rare earth elements, an average molarity of Zr within the range is equal to or more than 70 mol % with respect to a total of Ce, Zr, and other rare earth elements, or a molarity ratio of Ce with respect to Zr within the range is equal to or less than 0.143.

A conductive member includes a base material and a covering part located on the base material and containing a first element. The base material contains chromium. The first element has a smaller value of first ionization energy and a smaller absolute value of free energy formation of oxide than chromium.

Conductive member, cell, cell stack device, module, and module housing device

A solid oxide fuel cell having an electric power generating element unit that is configured by sandwiching a solid electrolyte layer between a fuel electrode layer and an oxygen electrode layer with a pore that is present in the solid electrolyte layer and is covered with a sealing material. In addition, a pore that is present in an interconnector, which is electrically connected to the fuel electrode layer or the oxygen electrode layer, is covered with the sealing material. Consequently, the solid oxide fuel cell is capable of easily preventing gas leakage.

Solid oxide fuel cell, fuel cell stack device, fuel cell module, and fuel cell apparatus

A cell of the present disclosure includes a support body having a pillar shape, containing nickel, and including a gas-flow passage passing through an interior of the support body in a longitudinal direction, a first end portion including an outlet of the gas-flow passage, and a second end portion including an inlet of the gas-flow passage, a first electrode layer located upon the support body, a solid electrolyte layer located upon the first electrode layer, and a second electrode layer located upon the solid electrolyte layer. The support body has a lower metallic nickel content at the first end portion than at a central portion in the longitudinal direction. As such, the cell is capable of suppressing damage.

Growing community of inventors

Kirishima, Japan

Akihiro Hara