Electrolyte regeneration in a fuel cell stack

Details Electrolyte regeneration in a fuel cell stack Electrolyte regeneration in a fuel cell stack

1974-06-13

1976-11-09

Mack, John H.

Chemistry: electrical current producing apparatus, product, and

Having magnetic field feature

429 34, H01M 818

Patent

active

039909123

ABSTRACT:
In a fuel cell stack utilizing an alkali metal electrolyte, the electrolyte is distributed in parallel between the electrodes of a plurality of fuel cells and is then fed to regenerator cell which converts carbonate ions to molecular CO.sub.2 gas which is discharged from the cell. Regeneration is effected through the establishment of a hydroxyl ion gradient within a regenerator cell. The regenerated electrolyte is then returned to the fuel cells. In this manner a carbonate buildup in the cells is prevented.

REFERENCES:
patent: 3331703 (1967-07-01), Young
patent: 3511712 (1970-05-01), Giner
patent: 3692649 (1972-09-01), Prigent et al.

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