Method of making monolithic solid oxide fuel cell stack

Details Method of making monolithic solid oxide fuel cell stack Method of making monolithic solid oxide fuel cell stack

1987-10-13

1989-08-15

Kalafut, Stephen J.

Chemistry: electrical current producing apparatus, product, and

With pressure equalizing means for liquid immersion operation

429 32, 296235, 427115, H04M 810, B05D 512

Patent

active

048574201

ABSTRACT:
The fuel cell stack is made from two basic finished component subassemblies which are stacked repetitively atop each other in alternating fashion. One of the components is an electrode subassembly, and the other is a separator plate-flow field subassembly. The subassemblies are formed from several different material layers which are sintered and shrunk to operating size and density prior to the stack being assembled. The finished subassemblies are layered atop each other to form the stack and then heated to an elevated subsintering temperature and subjected to a light compressive load so that abutting surfaces of the adjacent subassemlies are creep flattened into intimate adherent contact with each other thereby forming a monolithic stack assembly.

REFERENCES:
patent: 4468300 (1984-08-01), Byrne et al.
patent: 4476196 (1984-10-01), Poppel et al.
patent: 4476198 (1984-10-01), Ackerman et al.
patent: 4510212 (1985-04-01), Fraioli
patent: 4629537 (1986-12-01), Hsu

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