Cell, cell stack device, module and module-containing device
A cell of the present disclosure may include a support body having a pillar shape, a first electrode layer located on the support body, a solid electrolyte layer located on the first electrode layer, and a second electrode layer located on the solid electrolyte layer. A gas-flow passage passing through the support body in a longitudinal direction thereof is provided in an interior of the support body. A diameter of the gas-flow passage at least at a first end portion of both end portions of the gas-flow passage in the longitudinal direction is greater than a diameter of the gas-flow passage at a central portion, and thus the cell can provide improved power generation efficiency.
1. A cell comprising:
a support body having a pillar shape;
a first electrode layer located on the support body;
a solid electrolyte layer located on the first electrode layer; and
a second electrode layer located on the solid electrolyte layer,
wherein
a plurality of gas-flow passages passing through the support body in a longitudinal direction thereof is provided in an interior of the support body; and
diameters of both end portions of one or more gas-flow passages of the plurality of gas-flow passages in the longitudinal direction are greater than a diameter of the one or more gas-flow passages at a central portion.
2. The cell according to claim 1 , wherein
the diameter of the one or more gas-flow passages at least at a first end portion of both end portions of the one or more gas-flow passages in the longitudinal direction is from 1.003 to 1.03 times the diameter of the one or more gas-flow passages at the central portion.
3. The cell according to claim 1 , wherein
a gap between the one or more gas-flow passages and the first electrode layer at least at a first end portion of both end portions of the one or more gas-flow passages is wider than a gap between the one or more gas-flow passages and the first electrode layer at the central portion.
4. The cell according to claim 1 , wherein
a gap between two of the plurality of gas-flow passages that are adjacent to each other at least at a first end portion of both end portions of the two of the plurality of gas-flow passages is wider than a gap between the two of the plurality of gas-flow passages that are adjacent to each other at the central portion.
5. A cell stack device comprising:
a cell stack comprising a plurality of the cells according to claim 1 .
6. A module comprising:
a housing container; and
the cell stack device according to claim 5 housed in the housing container.
7. A module-containing device comprising:
the module according to claim 6 ;
an auxiliary device configured to operate the module; and
an external casing containing the module and the auxiliary device therein.
8. A cell comprising:
a support body having a pillar shape;
a first electrode layer located on the support body;
a solid electrolyte layer located on the first electrode layer; and
a second electrode layer located on the solid electrolyte layer,
wherein
a plurality of gas-flow passages passing through the support body in a longitudinal direction thereof is provided in an interior of the support body;
a diameter of one or more gas-flow passages of the plurality of gas-flow passages at least at a first end portion of both end portions of the one or more gas-flow passages in the longitudinal direction is greater than a diameter of the one or more gas-flow passages at a central portion; and
the one or more gas-flow passages of the plurality of gas-flow passages is curved from the first end portion of both end portions to a second end portion of both end portions in the longitudinal direction.
9. The cell according to claim 8 ,
wherein the support body has a flat plate shape;
the plurality of gas-flow passages are provided in the support body along a lateral direction thereof; and
one or more end portion gas-flow passages of the plurality of gas-flow passages provided at end portions of the support body in the lateral direction thereof curve toward a central portion of the support body in the lateral direction thereof.
10. A cell stack device comprising:
a cell stack comprising a plurality of the cells according to claim 8 .
11. A module comprising:
a housing container; and
the cell stack device according to claim 10 housed in the housing container.
12. A module-containing device comprising:
the module according to claim 11 ;
an auxiliary device configured to operate the module; and
an external casing containing the module and the auxiliary device therein.
13. A cell comprising:
a support body having a pillar shape;
a first electrode layer located on the support body;
a solid electrolyte layer located on the first electrode layer; and
a second electrode layer located on the solid electrolyte layer,
wherein
a plurality of gas-flow passages passing through the support body in a longitudinal direction thereof is provided in an interior of the support body; and
one or more gas-flow passages of the plurality of gas-flow passages comprises:
a central portion and
a first end portion,
wherein
a center of the one or more gas-flow passages at the central portion is laterally shifted from a center of the one or more gas-flow passages at the first end portion.
14. The cell according to claim 13 , wherein
the one or more gas flow passages further comprises:
a second end portion,
wherein
the center of the one or more gas-flow passages at the central portion is laterally shifted from a center of the one or more gas-flow passages at the second end portion.
15. The cell according to claim 14 , wherein
a diameter of the one or more gas-flow passages at least at the first end portion of both end portions of the one or more gas-flow passages in the longitudinal direction is greater than a diameter of the one or more gas-flow passages at the central portion.
16. A cell stack device comprising:
a cell stack comprising a plurality of the cells according to claim 13 .
17. A module comprising:
a housing container; and
the cell stack device according to claim 16 housed in the housing container.
18. A module-containing device comprising:
the module according to claim 17 ;
an auxiliary device configured to operate the module; and
an external casing containing the module and the auxiliary device therein.