Chemistry: electrical current producing apparatus – product – and – Plural concentric or single coiled electrode
Patent
1973-01-24
1976-12-28
Skapars, Anthony
Chemistry: electrical current producing apparatus, product, and
Plural concentric or single coiled electrode
429113, 429127, H01M 3516
Patent
active
040003515
ABSTRACT:
An electrolytic cell pack consisting for instance of opposite polarity electrodes and alternate interposed separator is spirally wound by (a) attaching a thin flexible leader tab having a folded end to the cell pack, (b) curling the folded end of the leader tab in a spiral manner, (c) bringing a winding mandrel next to the thus formed curl and rotating the mandrel in the direction of the curled tab to thereby uncurl the leader tab and engage its folded end into a peripheral receiving portion of the mandrel, and (d) further rotating the mandrel to form the spiral wound cell pack. The described winding method is particularly suitable for spirally winding under firm stack pressure relatively small diameter cell packs such as may be required in rechargeable alkaline battery cells. The stack pressure achieved by the winding method is maintained by inserting a retainer in the axial void of the cell pack.
REFERENCES:
patent: 2991324 (1961-07-01), Vogt
patent: 3156585 (1964-11-01), Yamano et al.
patent: 3494800 (1970-02-01), Shoeld
patent: 3565690 (1971-02-01), Du Plessix et al.
Grossman Phillip A.
Hug Leonard F.
Stark Robert E.
Young Roland L.
Castleman, Jr. Curtis H.
Fink Raymond
Oberg, Jr. H. W.
Skapars Anthony
The Gates Rubber Company
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