Method of making prismatic cell

Details Method of making prismatic cell Method of making prismatic cell

1994-03-03

1996-08-27

Skapars, Anthony

Metal working

Method of mechanical manufacture

Electrical device making

429 94, H01M 600

Patent

active

055497179

ABSTRACT:
A solid cathode liquid organic electrolyte alkali metal high rate cell wherein a combination of an elongated alkali metal anode and elongated solid cathode with separator therebetween is wound to form an anode-cathode subassembly having a jellyroll type configuration and wherein the combination is shaped so that the resulting sub-assembly has a substantially rectangular cross-section, the shaping of the combination being done either simultaneously with or subsequent to the winding thereof. The anode-cathode sub-assembly is placed in a conductive cell casing of prismatic shape having opposed flat faces, a lead of either the anode or cathode is attached to the cell casing depending upon whether case positive or case negative electrical configuration is desired and a lead of the other of the anode or cathode is connected to an electrical connector means extending through the casing in an insulated manner. Liquid electrolyte is introduced to the anode-cathode sub-assembly in the casing whereupon the casing then is sealed closed. The foregoing provides a new and improved prismatic high rate battery which significantly reduces the time required to manufacture the cell stack assembly while maintaining the requisite performance, safety and reliability standards in operation,

REFERENCES:
patent: 2474716 (1949-06-01), Beechlyn
patent: 2928888 (1960-03-01), Vogt
patent: 3174880 (1965-03-01), Buitkus
patent: 4709472 (1987-12-01), Machida et al.
patent: 4830940 (1989-05-01), Keister et al.
patent: 4963446 (1990-10-01), Roels et al.
patent: 4997043 (1990-12-01), Kadouchi et al.
patent: 5116698 (1992-05-01), Sears

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