Coiled electrode assembly cell construction with telescopic terminal tab
Patent
·
OSTI ID:6242151
A galvanic cell is described comprising a coiled electrode assembly contained in a housing; the coiled electrode assembly comprising a first electrode strip superimposed on and overlapping a second electrode strip and a separator disposed between the first electrode strip and the second electrode strip; the first electrode strip, the second electrode strip and the separator are wound into a coiled electrode assembly such that the first electrode strip is electronically insulated from the second electrode strip by the separator and the edge of at least one electrode strip protrudes from the coiled electrode assembly at one end and electronically contacts a conductive terminal at a first portion of the housing and the second electrode strip electronically contacts a conductive terminal at a second portion of the housing which is insulated relative to the first portion; the improvement wherein a conductive tab has at least one slit disposed substantially about the central area of the tab to enable the central area to flex above or below the plane of the tab to accommodate bulging of the cell, without effectively distorting the peripheral area of the tab.
- Assignee:
- Eveready Battery, Co., St. Louis, MO
- Patent Number(s):
- US 4794056
- OSTI ID:
- 6242151
- Country of Publication:
- United States
- Language:
- English
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