BRIEF DESCRIPTION OF THE DRAWINGS
The above and other objects, features and advantages of the present invention will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which:
FIG. 1A is a cross sectional view illustrating an anode-supported cylindrical solid oxide fuel cell (SOFC);
FIG. 1B is a cross sectional view illustrating an anode-supported flat tubular SOFC;
FIG. 2A is a cross sectional view illustrating an anode-supported cylindrical SOFC which is not provided with a connection member;
FIG. 2B is a cross sectional view illustrating an anode-supported flat tubular SOFC which is not provided with a connection member;
FIG. 3A is a perspective view illustrating a sealing element used for an anode-supported cylindrical SOFC, which is not provided with a connection member, according to a first embodiment of the present invention;
FIG. 3B is a longitudinal sectional view of a sealing element shown in FIG. 3A;
FIG. 3C is a longitudinal sectional view illustrating a coupling state between a fuel cell and a sealing element;
FIG. 4A is a perspective view illustrating a sealing element used for an anode-supported flat tubular SOFC, which is not provided with a connection member, according to a second embodiment of the present invention;
FIG. 4B is a front-sectional view of a sealing element shown in FIG. 4A;
FIG. 4C is a plan-sectional view of a sealing element shown in FIG. 4A;
FIG. 4D is a front-sectional view illustrating a coupling state between a fuel cell and a sealing element shown in FIG. 4A;
FIG. 4E is a plan-sectional view illustrating a coupling state between a fuel cell and a sealing element shown in FIG. 4A;
FIG. 5A is a longitudinal sectional view illustrating a sealing element used for an anode-supported cylindrical SOFC, which is not provided with a connection member, according to a third embodiment of the present invention;
FIG. 5B is a plan-sectional view illustrating a sealing element used for an anode-supported flat tubular SOFC, which is not provided with a connection member, according to a fourth embodiment of the present invention;
FIG. 6A is a longitudinal sectional view illustrating a sealing element used for an anode-supported cylindrical SOFC, which is not provided with a connection member, according to a fifth embodiment of the present invention;
FIG. 6B is a plan-sectional view illustrating a sealing element used for an anode-supported flat tubular SOFC, which is not provided with a connection member, according to a sixth embodiment of the present invention; and
FIG. 7 is a perspective view illustrating a fuel cell coupled with a sealing element according to the fifth embodiment of the present invention by means of brazing.