Compression assembly, solid oxide fuel cell stack, a process...

Details Compression assembly, solid oxide fuel cell stack, a process... Compression assembly, solid oxide fuel cell stack, a process...

H - Electricity

01

M

H01M 2/02 (2006.01) H01M 8/02 (2006.01) H01M 8/24 (2006.01)

Patent

CA 2593303

The invention discloses a compression assembly for distributing an external compression force to a solid oxide fuel cell stack, said compression assembly comprising a force distributing plate, and a force distributing layer so that when said compression assembly is mounted together with the solid oxide fuel cell stack, the external compression force is exerted on said force distributing plate and said force distributing layer is provided next to a surface of at least one end plate, opposite to the surface facing the solid oxide fuel cells, said force distributing layer having a rigid frame extending next to a region of a sealing area of the solid oxide fuel cell stack, one or more resilient elements placed inside the space enclosed by said rigid frame and positioned next to an electrochemically active area of the solid oxide fuel cell stack, so that when said compression assembly mounted with the solid oxide fuel cell is in use, said force distributing layer provides an unequally pressure distribution across the region of the sealing area and the electrochemically active area. Also a solid oxide fuel cell stack comprising a compression assembly is presented and a process for compressing a solid oxide fuel cell stack is provided. Further different use of a solid oxide fuel cell stacks are described.

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