Cell, cell stack device, module, and module storage device

Patent metadata

Field	Value
Publication number	US-2017207473-A1
Application number	US-201515327662-A
Country	US
Kind code	A1
Filing date	Oct 28, 2015
Priority date	Oct 29, 2014
Publication date	Jul 20, 2017
Grant date	—

Abstract

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.

First claim

1 . A cell comprising:
a support body having a pillar shape, containing nickel, and comprising a gas-flow passage passing through an interior of the support body in a longitudinal direction, a first end portion comprising an outlet of the gas-flow passage and a second end portion comprising 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, wherein the support body has a lower metallic nickel content at the first end portion than at a central portion in the longitudinal direction.

2 . The cell according to claim 1 , wherein the support body has a lower porosity at the first end portion than at the central portion in the longitudinal direction.

3 . The cell according to claim 1 , wherein the gas-flow passage has a smaller diameter at the first end portion than at the central portion.

4 . The cell according to claim 1 , wherein the metallic nickel content at a surface of the support body is less than the metallic nickel content at the interior of the support body.

5 . The cell according to claim 1 ,
wherein the support body comprises a pair of main surfaces, the first electrode layer is disposed on at least first main surface of the pair the main surfaces of the support body, the solid electrolyte layer is disposed from the first main surface of the support body to a second main surface of the pair of main surfaces and covers the first electrode layer, the second electrode layer is disposed upon the solid electrolyte layer and faces the first electrode layer, an end portion of the solid electrolyte layer is located on a side of an end portion of the second main surface in a lateral direction, and on a side of the second main surface of the support body, the end portion in the lateral direction has a lower metallic nickel content than a central portion in the lateral direction.

6 . A cell stack device comprising a plurality of the cell according to claim 1 arranged and electrically connected to each other.

7 . A module comprising:
a housing container; and the cell stack device according to claim 6 housed in the housing container.

8 . A module-containing device comprising:
an external casing; the module according to claim 7 , housed in the external casing; and an auxiliary device housed in the external casing and configured to operate the module.

Assignees

• Kyocera Corp

Inventors

• Hori Yuuichi
• Hara Akihiro

Classifications

• H01M8/241

  with solid or matrix-supported electrolytes · CPC title

• H01M8/04201

  Reactant storage and supply, e.g. means for feeding, pipes · CPC title

• H01M2008/1293

  Fuel cells with solid oxide electrolytes · CPC title

• H01M8/2465

  Details of groupings of fuel cells · CPC title

• H01M8/1226 Primary

  characterised by the supporting layer · CPC title