Chemistry: electrical current producing apparatus – product – and – With pressure equalizing means for liquid immersion operation
Patent
1993-06-15
1994-10-18
Kalafut, Stephen
Chemistry: electrical current producing apparatus, product, and
With pressure equalizing means for liquid immersion operation
429 35, H01M 1208
Patent
active
053567293
ABSTRACT:
An air manager system is disclosed which maintains a more stable water vapor and carbon dioxide equilibrium across the air cathode of a metal-air cell while still providing new oxygen needed for operation of the cell at desired power levels. Oxygen is preferentially drawn in through one or more ventilation openings in a housing, so that the concentrations of water vapor and carbon dioxide in the battery housing remain more stable, resulting in less transfer across the cathode. A fan circulates the gases within the battery housing, keeping the oxygen needed for operation of the cell in contact with the air cathode even though the oxygen concentration within the housing is reduced compared to the ambient air outside the housing. Therefore, the cell is less susceptible to drying out or flooding, and less carbon dioxide intrudes into the cell.
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AER Energy Resources Inc.
Kalafut Stephen
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