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

Patent metadata

Field	Value
Publication number	US-2022200033-A1
Application number	US-202017601772-A
Country	US
Kind code	A1
Filing date	Apr 23, 2020
Priority date	Apr 24, 2019
Publication date	Jun 23, 2022
Grant date	—

Abstract

Provided are a cell (1), a cell stack device (20), a module (30), and a module housing device (40). The cell (1) includes a metal plate (2) having a pair of surfaces, which are a first surface (2a) and a second surface that face each other, and containing Cr, an element portion (6) disposed on the metal plate (2), the element portion (6) including a first electrode layer (3), a solid electrolyte layer (4) located on the first electrode layer (3), and a second electrode layer (5) located on the solid electrolyte layer (4), and a first intermediate layer (9) located between the first surface (2a) of the metal plate (2) and the first electrode layer (3). The first intermediate layer 9 contains Cr2O3 and a first electrically conductive particle different from Cr2O3.

First claim

1 . A cell comprising:
a metal plate comprising a first surface, and a second surface that faces the first surafce, the metal plate containing Cr; an element portion disposed on the first surface, the element portion comprising a first electrode layer, a solid electrolyte layer located on the first electrode layer, and a second electrode layer located on the solid electrolyte layer; and a first intermediate layer located between the first surface and the first electrode layer, wherein the first intermediate layer contains Cr 2 O 3 and a first conductive particle different from Cr 2 O 3 .

2 . The cell according to claim 1 , wherein
a particle size of the first conductive particle is smaller than a thickness of the first intermediate layer.

3 . The cell according to claim 1 , wherein
the first conductive particle contains Ni.

4 . The cell according to claim 1 , further comprising:
a second intermediate layer, that is porous, between the first intermediate layer and the first electrode layer.

5 . The cell according to claim 4 , wherein
the second intermediate layer is thicker than the first intermediate layer.

6 . The cell according to claim 4 , wherein
the second intermediate layer contains a second conductive particle.

7 . The cell according to claim 6 , wherein
the second intermediate layer further contains an inorganic oxide.

8 . A cell stack device comprising:
a cell stack comprising a plurality of cells, the plurality of cells comprising the cell according to claim 1 .

9 . A module comprising:
a housing container; and the cell stack device according to claim 8 housed in the housing container.

10 . A module housing device comprising:
an external case; the module according to claim 9 housed in the external case; and an auxiliary device housed in the external case, and configured to operate the module.

11 . A cell comprising:
a metal plate comprising a first surface, and a second surface that faces the first surafce, the metal plate containing Cr; an element portion disposed on the first surface, the element portion comprising a first electrode layer, a solid electrolyte layer located on the first electrode layer, and a second electrode layer located on the solid electrolyte layer; and a first intermediate layer located between the first surface and the first electrode layer, wherein the first intermediate layer contains Cr 2 O 3 and Ni.

12 . The cell according to claim 11 , further comprising:
a second intermediate layer, that is porous, between the first intermediate layer and the first electrode layer, wherein the second intermediate layer is thicker than the first intermediate layer.

13 . The cell according to claim 12 , wherein
the second intermediate layer contains a conductive particle.

14 . The cell according to claim 13 , wherein
the second intermediate layer further contains an inorganic oxide.

15 . A cell stack device comprising:
a cell stack comprising a plurality of cells, the plurality of cells comprising the cell according to claim 11 .

16 . A module comprising:
a housing container; and the cell stack device according to claim 15 housed in the housing container.

17 . A module housing device comprising:
an external case; the module according to claim 16 housed in the external case; and an auxiliary device housed in the external case, and configured to operate the module.

Assignees

• Kyocera Corp

Inventors

• Seno Hiroaki
• Fujimoto Tetsuro

Classifications

• H01M8/2475

  Enclosures, casings or containers of fuel cell stacks · CPC title

• H01M8/0228

  in the form of layered or coated products · CPC title

• H01M8/247

  Arrangements for tightening a stack, for accommodation of a stack in a tank or for assembling different tanks · CPC title

• H01M8/0206 Primary

  Metals or alloys · CPC title

• H01M8/1213 Primary

  characterised by the electrode/electrolyte combination or the supporting material · CPC title