Electrochemical cell with electrode hold-down

Details Electrochemical cell with electrode hold-down Electrochemical cell with electrode hold-down

1980-06-26

1981-06-30

Walton, Donald L.

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Cell enclosure structure, e.g., housing, casing, container,...

429208, H01M 210

Patent

active

042763614

ABSTRACT:
A primary electrochemical cell including a hold-down unit for securing and preventing movement of a physically large battery stack of the cell. The battery stack is disposed within a rectangular metal housing of the cell, together with an electrolytic solution, and comprises a large number of rectangular anodes and cathode structures arranged in the battery stack in alternation.
The hold-down unit is disposed in the cell in abutment with the top of the battery stack and an inner surface of a cover assembly secured to the housing. The hold-down unit includes a pair of opposed end sections in abutment with the interior surfaces of one pair of walls of the housing and lying orthogonally to the planes of the components of the battery stack, and a pair of opposed connecting sections in abutment with the interior surfaces of the other pair of walls of the housing and interconnecting the pair of end sections. The connecting sections are spaced from the battery stack and define, together with the end sections, top and side openings. These openings, together with large openings in the end sections, minimize the displacement of electrolytic solution in the region of the cell above the battery stack. The connecting sections further include insulated, resilient, angularly-oriented tabs capable of deflection by contact with the top cover assembly for compensating for variations in tolerances associated with the manufacture and assembly of the components of the cell.

REFERENCES:
patent: 1224439 (1917-05-01), Bosson et al.
patent: 4086397 (1978-04-01), Goebel et al.
patent: 4221850 (1980-09-01), Attinger et al.

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