Nissan Motor Company Limited

Daido Steel Co., Ltd.

Itaru Shibata

Keiko Kushibiki

Makoto Uchiyama

Mitsugu Yamanaka

Masaharu Hatano

Fuminori Satou

Naoki Hara

Tatsuhiro Fukuzawa

Yoshiko Tsukada

Yoshiko Hishitani

Yasushi Nakajima

Shigeo Ibuka

Noriko Uchiyama

Hirokazu Komatsu

Dong Song

Tatsuo Sugiyama

Fuminori Sato

Atsushi Miyazawa

Munekatsu Shimada

Mori Nagayama

Hiroyuki Aoki

Shinichiro Yahagi

Naoya Matsuoka

Hiromi Sugimoto

Mikiya Shinohara

Masashi Mizuno

Masaru Nagata

Shigeo Hanashima

Nobuyuki Matsui

An electrode structure includes a first electrode unit, a second electrode unit and a first insulating frame, in which the electrode units are adjacent to each other. The first insulating unit has an airflow space therein and includes an electrically conducive base with an airflow plane and an air cell cathode disposed on an outer surface of the airflow plane. The second insulating unit includes an electrically conductive base and an air cell anode disposed on an outer surface of the electrically conductive base. The first insulating frame spaces and joins the adjacent electrode units to each other such that the air cell cathode and the air cell anode of the adjacent electrode units are opposed to each other. The first insulating frame together with the adjacent electrode units forms an electrolytic solution container.

Electrode structure, air cell, and air cell stack

The present invention is an air battery Bin which a cathode assemblyincluding a porous cathode layerand an anode assemblyare disposed on mutually opposite sides of an electrolytic solution layer &#x3b2;. It includes an electrically conductive cathode support platethat supports the porous cathode layerand includes a ventilation area, wherein the porous cathode layercovers the ventilation area and further extends to a non-ventilation area outside the ventilation area, and includes a dense portionat an outer edge part facing the non-ventilation area.

Air battery and air battery stack using same

A solid electrolyte fuel cell plate structure includes a cell element layer composed of a solid electrolyte, an air electrode layer and a fuel electrode layer, a porous base body supporting the cell element layer, and a gas-impermeable member having electric conductivity. The cell element layer is arranged such that the solid electrolyte layer is sandwiched between the air electrode layer and the fuel electrode layer, with the air electrode layer or the fuel electrode layer being joined to the porous base body. The gas-impermeable member is associated with the solid electrolyte layer to allow gas internally passing through the porous base body to be separated from gas flowing outside the porous base body. Such a cell plate structure can be employed in a solid electrolyte fuel cell stack, which in turn can be employed in a solid electrolyte fuel cell electric power generation unit.

Solid oxide electrolyte fuel cell plate structure, stack and electrical power generation unit

A fuel cell comprises: a cell plate (A,B); an electroconductive gas separator (A;B) which cooperates with the cell plate, to form a gas passage; and a holder member (A;B) which holds a part of the cell plate. The cell plate includes a supporting body (A;B), and a cell (A;B) formed on the supporting body. The cell includes a solid electrolyte (), a cathode substance layer () formed on one surface of the solid electrolyte, and an anode substance layer () formed on the other surface of the solid electrolyte.

Fuel cell

A single cell for a solid oxide fuel cell, in which a solid electrolyte layer is sandwiched by an upper electrode layer and a lower electrode layer. This single cell includes a substrate having openings and an insulating and stress absorbing layer stacked on an upper surface of this substrate. The solid electrolyte layer is formed on an upper surface of the insulating and stress absorbing layer so as to cover the openings, the upper electrode layer is stacked on an upper surface of the solid electrolyte layer, and the lower electrode layer is coated on a lower surface of the solid electrolyte layer via the openings from a lower surface of the substrate. A cell plate, in which these single cells are disposed two-dimensionally on a common substrate. Furthermore, a solid oxide fuel cell, in which these cell plates and plate-shaped separators including gas passages on both surfaces thereof are alternately stacked.

Single cell for fuel cell and solid oxide fuel cell

A cell body for a fuel cell comprises a metal support and an electrolyte layer and an air electrode layer. The electrolyte layer and the air electrode layer are formed on the metal support. A concave portion is formed in an arbitrary pattern on the metal support, and the bottom of the concave portion is made to be porous.

Cell body for fuel cell and method of manufacturing the same

A fuel cell collector structure of the present invention includes a single cell which is formed by sandwiching a plate-shaped solid electrolyte between a fuel electrode and an air electrode, a collector which is provided at a position adjacent to the single cell, and a separator which is provided at the position adjacent to the collector. In the fuel cell collector structure, the collector is made of a porous electric conductor having a plurality of apertures on a surface, the single cell and/or the separator has a plurality of electrically conductive projections on the surface, and the projections intrude into the apertures to come into contact with the collector.

Fuel cell collector structure and solid oxide fuel cell stack using the same

A single cell for a fuel cell in which an air electrode or a fuel electrode includes at least two layers. The air electrode includes an adhering cathode layer formed on one surface of the solid electrolyte layer and configured to show a function to allow the air electrode and the solid electrolyte layer to adhere electrically and mechanically to each other, and an electricity collecting cathode layer formed on the adhering cathode layer and configured to show an electricity collecting function of the air electrode. Alternatively, the fuel electrode includes an adhering anode layer formed on the other surface of the solid electrolyte layer and configured to show a function to allow the fuel electrode and the solid electrolyte layer to adhere electrically and mechanically to each other, and an electricity collecting anode layer formed on the adhering anode layer and configured to show an electricity collecting function.

Solid oxide fuel cell

A unit cell for a solid oxide fuel cell is provided with a substrate including a portion having a first porosity, a battery element formed on the substrate and having an electrode layer and an electrolyte layer, and a low porosity layer provided in at least one of the substrate and the battery element to have a second porosity lower than the first porosity. Sizes of a plurality of pores of the low porosity layer falls in a value equal to or less than 10 &#x3bc;m to laminate a part of the battery element on the low porosity layer.

Unit cell solid oxide fuel cell and related method

A unit cell for a solid electrolyte fuel cell is provided with an air electrode, a fuel electrode, a solid electrolyte sandwiched between the air electrode and the fuel electrode, and a porous metallic base body joined to at lease one of the air electrode and the fuel electrode. The porous metallic base body includes a plurality of porous base body layers stacked to form a laminated structure in which one layer joined to at least one of the air electrode and the fuel electrode has porosity lower than that of the other layer not joined to at least one of the air electrode and the fuel electrode.

Unit cell for solid oxide electrolyte type fuel cell and related manufacturing method

A fuel cell of the present invention includes a fuel cell stack () for being formed by stacking a plurality of cell plates () having a flat shape, the cell plates () being configured by arranging a plurality of cells, the cell having an electrolyte layer (), a fuel electrode layer () and an air electrode layer (). A combustion heater plate () includes a porous combustion plate () and a gas non-pass layer () covering a surface of the porous combustion plate (). The combustion heater plate () is disposed between the cell plates ().

A unit cell for a solid electrolyte type fuel cell is provided with a fuel electrode, an air electrode making a pair with the fuel electrode, a solid electrolyte interposed between the fuel electrode and the air electrode, a porous metallic base body disposed on at lease one of a surface of the fuel electrode on the far side from the solid electrolyte and a surface of the air electrode on the far side from the solid electrolyte such that the fuel electrode, the electrolyte, and a plurality of concave portions formed in the porous metallic base body so as to extend, in a laminating direction in which the fuel electrode, the electrolyte, the air electrode and the porous metallic base body are laminated, from a surface of the porous metallic base body.

Growing community of inventors

Kanagawa-ken, Japan

Itaru Shibata