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

Patent metadata

Field	Value
Publication number	US-2022311038-A1
Application number	US-202017605197-A
Country	US
Kind code	A1
Filing date	Apr 22, 2020
Priority date	Apr 24, 2019
Publication date	Sep 29, 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 (2b) that face each other, an element portion (6) disposed on the first surface (2a) of the metal plate (2), and 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 an intermediate layer (9) located between the first surface (2a) and the first electrode layer (3). The intermediate layer (9) has a plurality of first through holes penetrating through the intermediate layer (9) in a thickness direction.

First claim

1 . A cell comprising:
a metal plate comprising a pair of surfaces, which are a first surface and a second surface that face each other; an element portion disposed on the first surface and 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 an intermediate layer located between the first surface and the first electrode layer, the intermediate layer having a plurality of first through holes penetrating through the intermediate layer in a thickness direction.

2 . The cell according to claim 1 , wherein
the intermediate layer has a pore in a portion other than the plurality of first through holes.

3 . The cell according to claim 1 or 2 , wherein
a porosity of the portion other than the plurality of first through holes in the intermediate layer is smaller than a porosity of the first electrode layer.

4 . The cell according to any one of claims 1 to 3 , wherein
a material of the intermediate layer is similar to a material of the solid electrolyte layer.

5 . The cell according to any one of claims 1 to 4 , wherein
a conductive member that electrically connects the metal plate and the first electrode layer is disposed in at least one of the plurality of first through holes.

6 . The cell according to claim 5 , wherein
the conductive member is porous.

7 . The cell according to claim 5 or 6 , wherein
the conductive member contains a conductive particle and an inorganic oxide.

8 . The cell according to any one of claims 5 to 7 , wherein
the conductive member is further disposed between the metal plate and the intermediate layer.

9 . The cell according to any one of claims 1 to 8 , wherein
the metal plate has a plurality of second through holes passing through the metal plate in the thickness direction.

10 . The cell according to claim 9 , wherein
at least one of the plurality of second through holes overlap with the plurality of first through holes in a plan view in the thickness direction.

11 . The cell according to claim 9 , wherein
the plurality of second through holes do not overlap with the plurality of first through holes in a plan view in the thickness direction.

12 . A cell stack device comprising:
a cell stack in which a plurality of the cells according to any one of claims 1 to 11 are disposed.

13 . A module comprising:
a housing container; and the cell stack device according to claim 12 housed in the housing container.

14 . A module housing device comprising:
an external case; the module according to claim 13 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

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• C25B9/60

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• C25B1/042 Primary

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• C25B9/77

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• C25B9/75

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