Electrochemical cell insensitive to physical orientation

Details Electrochemical cell insensitive to physical orientation Electrochemical cell insensitive to physical orientation

1980-04-29

1981-08-11

LeFevour, Charles F.

Chemistry: electrical current producing apparatus, product, and

Having specified venting, feeding or circulation structure

Having nonmovable means providing motion between electrolyte...

429 72, 429196, H01M 238

Patent

active

042834686

ABSTRACT:
A primary electrochemical cell insensitive to physical orientation or position over the rated life span of the cell. The cell includes an elongated metal housing and a battery stack disposed intermediate to the ends of the housing to define first and second electrolyte reservoirs at the ends of the housing. The battery stack includes an electrolyte-conducting opening or channel therethrough in direct communication with the first and second reservoirs and is fixed in position in the housing by means of pedestals within the reservoirs and in abutment with the battery stack. The pedestals have a number of openings therein by which electrolyte solution in the reservoirs can pass unrestrictedly to the battery stack and to the opening through the battery stack. The electrolyte solution is of a type which is consumed by reaction within the cell over the rated life span of the cell leading to a volume loss of the electrolyte solution. The reservoirs and the opening through the stack, together with electrolyte conducting channels in porous components of the stack, cooperate in the event of a change in the physical orientation of the cell over its rated life span to shift the electrolyte solution within the cell so as to continue to supply electrolyte solution to the battery stack and thereby prevent an electrolyte "starvation" condition in the cell.

REFERENCES:
patent: 3166447 (1965-01-01), Bronstert et al.
patent: 3362852 (1968-01-01), Corren et al.
patent: 4004946 (1977-01-01), Farrington et al.
patent: 4038459 (1977-07-01), Ajami et al.
patent: 4060668 (1977-11-01), Isoebel
patent: 4115630 (1978-09-01), Ommering et al.
patent: 4148974 (1979-04-01), Eppley
patent: 4237197 (1980-12-01), Hart

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