US 9,312,558 B2 · Fuel cell, method for manufacturing the same, and application apparatus used for manufacturing the same

Abstract

In a fuel cell, a cell 105 including an anode 109, a solid electrolyte film 111 and a cathode 113 on an outer peripheral surface of a substrate tube 103 is formed in a circumferential direction of the substrate tube 103. A plurality of the cells 105 are arranged along a longitudinal direction of the substrate tube 103, and an interconnector 107 connecting the cells 105 electrically in series is formed between the adjacent cells 105. A thickness of an end portion of the cathode 113 in the longitudinal direction, the portion being in contact with the interconnector 107, is larger than a thickness of a center portion of the cathode 113 in the longitudinal direction. Thereby, high power generation performance can be achieved.

Claims13

Dependent claims

A fuel cell comprising:

a cell stack in which a cell including an anode, a solid electrolyte film and a cathode on an outer peripheral surface of a substrate tube is formed in a circumferential direction of the substrate tube, a plurality of the cells are arranged along a longitudinal direction of the substrate tube, and an interconnector connecting the cells electrically in series is formed between the adjacent cells,
wherein a thickness of an end portion of the cathode in the longitudinal direction, the portion being in contact with the interconnector, is larger than a thickness of a center portion of the cathode in the longitudinal direction.

A method for manufacturing a fuel cell including a cell stack in which a cell including an anode, a solid electrolyte film and a cathode on an outer peripheral surface of a substrate tube is formed in a circumferential direction of the substrate tube, a plurality of the cells are arranged along a longitudinal direction of the substrate tube, and an interconnector connecting the cells electrically in series is formed between the adjacent cells, the method comprising:

an application step of discharging slurry for cathodes to configure the cathode on the outer peripheral surface of the substrate tube from an opening portion of a dispenser by rotating the substrate tube in the circumferential direction and applying the slurry for cathodes to predetermined positions on the anode, the solid electrolyte film and the interconnector;
and
a sintering step of sintering the substrate tube to which the slurry for cathodes is applied, wherein
in the application step, the slurry for cathodes is applied so as to make a thickness of an end portion in the longitudinal direction, the end portion being in contact with the interconnector, larger than a thickness of a center portion in the longitudinal direction.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

14/560,848Filed 4 Dec 2014

Priority

JP 2013-2531186 Dec 2013

Published

US 2015/0162636 A111 Jun 2015

Granted

12 Apr 2016

Term ends

Not estimatedThe source records don’t support an estimate.

Classification15 codes

H01M 8/2428
High-temperature cells with solid electrolytes: grouping by arranging unit cells on a surface of any form, e.g. planar or tubular
H01M 8/0297
Details: arrangements for joining electrodes, reservoir layers, heat exchange units or bipolar separators to each other
H01M 8/1253
The electrolyte consisting of oxides: the electrolyte containing zirconium oxide
H01M 8/2404
Grouping of fuel cells, e.g. stacking of fuel cells: processes or apparatus for grouping fuel cells

Fuel cell, method for manufacturing the same, and application apparatus used for manufacturing the same

Life of this patent

Fuel cell, method for manufacturing the same, and application apparatus used for manufacturing the same

Life of this patent

Abstract

Claims13