Patent ID: 7832737

Claim:
A multi-layer seal for sealing a junction between adjacent components of an electrochemical device, said seal comprising: a gasket body defining first and second opposing surfaces; a first compliant interlayer positioned adjacent the first surface; and a second compliant interlayer positioned adjacent the second surface, wherein the gasket body comprises a member selected from the group consisting of a single crystal mica and a mica paper, each of said first and second compliant interlayers individually comprises a member selected from the group consisting of a glass, a glass-ceramic, a mica glass-ceramic, a phase-separated glass, a glass composite, a cermet, a metal, a metal alloy and a metal composite, at least one of the first and second compliant interlayers is unbonded to the gasket body at least until the multi-layer seal is incorporated into the electrochemical device, the multi-layer seal is configured to prevent flow between the adjacent components in a direction substantially from the first surface to the second surface and is configured to withstand temperatures greater than about 600° C.