Electrolyte creepage barrier for liquid electrolyte fuel cells

Details Electrolyte creepage barrier for liquid electrolyte fuel cells Electrolyte creepage barrier for liquid electrolyte fuel cells

2008-01-22

2008-01-22

Dove, Tracy (Department: 1795)

Chemistry: electrical current producing apparatus, product, and

With pressure equalizing means for liquid immersion operation

C429S006000

Reexamination Certificate

active

10405569

ABSTRACT:
A dielectric assembly for electrically insulating a manifold or other component from a liquid electrolyte fuel cell stack wherein the dielectric assembly includes a substantially impermeable dielectric member over which electrolyte is able to flow and a barrier adjacent the dielectric member and having a porosity of less than 50% and greater than 10% so that the barrier is able to measurably absorb and chemically react with the liquid electrolyte flowing on the dielectric member to form solid products which are stable in the liquid electrolyte. In this way, the barrier inhibits flow or creepage of electrolyte from the dielectric member to the manifold or component to be electrically insulated from the fuel cell stack by the dielectric assembly.

REFERENCES:
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patent: 4548874 (1985-10-01), Katz et al.
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patent: 5110692 (1992-05-01), Farooque et al.
patent: 5472800 (1995-12-01), Goto et al.
patent: 5478663 (1995-12-01), Cipollini et al.

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