Chemistry: electrical current producing apparatus – product – and – Regenerating – salvage or repair feature other than only...
Patent
1990-04-16
1992-03-31
Kalafut, Stephen J.
Chemistry: electrical current producing apparatus, product, and
Regenerating, salvage or repair feature other than only...
429 50, 429101, 320 21, H01M 1042
Patent
active
051007452
ABSTRACT:
A method for rejuvenating Ni-H.sub.2 battery cells suffering a voltage anomaly providing an improved cell output voltage and capacity. After the battery containing the cells suffering the voltage anomaly is removed from service, the battery is discharged. Discharging the battery reduces the hydrogen pressure within the cells, thereby increasing the rate of mass transport of free water back to the electrode stacks of the cells. The cells are then left to stand for a period sufficient to allow any free water to diffuse back to the electrode stacks. If gravity is available, the cell can simply be rotated to return the free water to the stack.
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Communications Satellite Corporation
Kalafut Stephen J.
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