| 摘要 |
Provided are a composite sealing structure for a fuel cell stack, a fuel cell using the structure, and a method for sealing the interconnection part of a positive electrode and a negative electrode by using the structure, to reduce the manufacturing cost of a SOFC stack and to improve the lifetime. The composite sealing structure is such that it comprises a pair of composite sealing material structures(28,30) expanding the each surrounding of the negative electrode-side and positive electrode-side interconnection parts(20,22). The each composite sealing material structure comprises a sealing part interposed between the marginal edges(44) of the negative electrode-side and positive electrode-side interconnection parts and the positive electrode; and an adjacent sealing material storage tank part which is located at the outside of the each surrounding for supplying additional sealing material to the sealing part. |
