Patent ID: 8703352
Filing Date: 2014-04-22
Classification: H01M,Y02E

Abstract:
1. A structure of a fuel cell comprising: a flat-plate-like porous support substrate having a gas flow channel formed therein; a plurality of power-generating elements provided on a main surface of the flat-plate-like support substrate at a plurality of positions, respectively, located apart from one another, each of the power-generating elements being a laminate of at least an inner electrode, a solid electrolyte, and an outer electrode; and a single or a plurality of electrical connections provided between a pair of or pairs of adjacent power-generating elements and adapted to electrically connect the inner electrode of one of the adjacent power-generating elements and the outer electrode of the other one of the adjacent power-generating elements; wherein each of the electrical connections is composed of a first portion formed of a dense material and a second portion connected to the first portion and formed of a porous material; first recesses are formed on the main surface of the flat-plate-like support substrate at the plurality of positions, respectively, each of the first recesses having a bottom wall formed of a material of the support substrate and a circumferentially closed side wall entirely formed of the material of the support substrate; the inner electrodes of the power-generating elements are embedded in the corresponding first recesses; second recesses arc formed on outer surfaces of the embedded inner electrodes, each of the second recesses having a bottom wall formed of a material of the inner electrodes and a circumferentially closed side wall formed of the material of the inner electrodes; the first portions of the electrical connections are embedded in the corresponding second recesses; and wherein the circumferentially closed side wall of each of the second recesses is entirely formed of the material of the inner electrode.