Support assembly for cells of a secondary battery

Details Support assembly for cells of a secondary battery Support assembly for cells of a secondary battery

1985-02-22

1985-10-08

Walton, Donald L.

Chemistry: electrical current producing apparatus, product, and

Fluid active material or two-fluid electrolyte combination...

429186, H01M 210

Patent

active

045460540

ABSTRACT:
A secondary battery, such as a nickel-hydrogen (NiH.sub.2) cell, has a first and a second cell stack, each cantilevered from opposite sides of a weld ring. The weld ring is located at the approximate center or middle of a pressure vessel composed of two half sections which are welded to opposite sides of the weld ring. The cell stacks are essentially unsupported at their outer ends. Electrical current carriers are received in longitudinal channels formed on opposite sides of an axially located cell stack support member, on which the cell elements are captured. Cantilever mounting of two cell stacks from a central weld ring is found to improve the integrating and durability of the cell. It also increases the eneregy capacity of the battery through the ability to add more cells through the use of axially longer pressure vessels, increasing the capacity of the battery. Location of the weld ring between the pair of cell stacks improves heat transfer between the cells and the pressure vessel during discharge.

REFERENCES:
patent: 2981779 (1961-02-01), Freund
patent: 3250645 (1966-05-01), Zahn et al.
patent: 4038461 (1977-07-01), Warnock
patent: 4115630 (1978-09-01), Van Ommering et al.
patent: 4250235 (1981-02-01), DuPont et al.
patent: 4420545 (1983-12-01), Meyer et al.
patent: 4477540 (1984-10-01), Miller et al.

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