Patent ID: 7217300

Claim:
In a fuel cell assembly, a method for sealing surfaces between first and second components of a fuel cell stack in said fuel cell assembly, comprising: a.) forming a dielectric element in the general shape of the surfaces to be sealed; b.) positioning said dielectric element adjacent to said first and second components; c.) forming a paste of a first braze alloy on at least one of said dielectric element and said first component; d.) forming a paste of a second braze alloy on at least one of said dielectric element and said second component; e.) bringing said dielectric element, said paste of said first braze alloy, said paste of said second braze alloy, and said first and second components together as an assembly, wherein said paste of said first braze alloy is disposed between and in contact with said first component and said dielectric element, and said paste of said second braze alloy is disposed between and in contact with said second component and said dielectric element; and f.) sintering said assembly at a temperature whereby said first and second braze alloys become liquefied and when cooled become bonded to said dielectric element and said first and second components of said fuel stack assembly, respectively, to form said seal.