Storage battery with common expansion and filler chamber

Details Storage battery with common expansion and filler chamber Storage battery with common expansion and filler chamber

1976-03-04

1977-02-15

Walton, Donald L.

Chemistry: electrical current producing apparatus, product, and

With control means responsive to battery condition sensing...

Electrolyte feeding control from reserve supply

429 73, H01M 236

Patent

active

040083551

ABSTRACT:
To prevent differential electrolyte levels in the various cells of a storage battery having a common expansion and filler chamber, while preventing internal short circuits through the electrolyte, each cell is formed with an overflow tube extending just below the normal electrolyte level of each cell, and an inlet tube flush with the expansion and filler chamber and having general U-shape, extending first downwardly and then upwardly, the U-shaped tube being at least partly filled with electrolyte to form resistance to flow of gases and electrolyte liquid from a particular cell back into the expansion and filler chamber through the inlet tube, rather than through the overflow tube, which extends above the wall separating the common expansion and filler chamber and the individual cell. A constriction or fluid choke may additionally be included in the U-shaped tube which is preferably constructed as a stub pipe extending from the common expansion and filler chamber into a side pocket formed at the side wall of the battery, each pocket being in open fluid communication with the respective cell just beneath the separating wall, the pockets being molded at the outside walls of the cells of the battery box so that plates or square configurations can be inserted therein.

REFERENCES:
patent: 1793136 (1931-02-01), Roth
patent: 1878223 (1932-09-01), Woodbride

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