SEPARATOR-FITTED SINGLE FUEL CELL, AND FUEL CELL STACK

摘要

A separator-fitted single fuel cell having a single fuel cell, a plate-shaped metallic separator that includes a through hole, and a joint portion that joins the single fuel cell to the metallic separator and is made of a brazing material containing Ag. The joint portion includes a protruding portion that protrudes from a gap between the single fuel cell and the first main surface of the metallic separator toward the through hole. The protruding portion is lower than the second main surface as viewed from the single fuel cell. The single fuel cell includes a sealing portion that is disposed along the entire circumference of the through hole of the metallic separator, covers the protruding portion and a part of the second main surface, and is made of a sealing material containing glass.

主权项

1. A separator-fitted single fuel cell comprising:
a single fuel cell that includes a cathode, an anode, and a solid electrolyte layer disposed between the cathode and the anode; a plate-shaped metallic separator that has a first main surface, a second main surface, and a through hole passing through the metallic separator between the first and second main surfaces; and a joint portion that joins the single fuel cell to the first main surface of the metallic separator and is made of a brazing material containing Ag, wherein the joint portion includes a protruding portion that protrudes from a gap between the single fuel cell and the first main surface of the metallic separator toward the through hole, and the protruding portion is lower than the second main surface as viewed from the single fuel cell, and a sealing portion disposed along the entire circumference of the through hole, covering the protruding portion and a part of the second main surface, and made of a sealing material contains glass.