Electrolyte matrix for molten carbonate fuel cells

Details Electrolyte matrix for molten carbonate fuel cells Electrolyte matrix for molten carbonate fuel cells

1980-06-09

1982-03-30

LeFevour, Charles F.

Chemistry: electrical current producing apparatus, product, and

Having earth feature

429 33, H01M 486

Patent

active

043224822

ABSTRACT:
Thru-cracks in the electrolyte retaining matrix of a molten carbonate fuel cell caused by thermal cycling of the cell between operating and room temperature are prevented by an improved matrix comprising a major proportion of submicron support particles and a minor proportion, perhaps only a few percent, of much larger crack attenuator particles. In one embodiment wherein the electrolyte is to be a binary lithium-potassium carbonates composition, the matrix comprises 90 volume percent submicron lithium aluminate support particles and 10 volume percent alumina crack attenuator particles with an average size of 100 microns.

REFERENCES:
patent: 3120456 (1964-02-01), Broers
patent: 3160527 (1964-12-01), Hess
patent: 3481788 (1969-12-01), Hamlen et al.
patent: 3878296 (1975-04-01), Vine et al.
patent: 4009321 (1977-02-01), Baker et al.
patent: 4079171 (1978-03-01), Marianowski et al.
patent: 4216278 (1980-08-01), Arendt et al.

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