Button cells and method of producing same
Number of patents in Portfolio can not be more than 2000
United States of America
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Mar 15, 2022
Grant Date -
Jul 2, 2020
app pub date -
Mar 6, 2020
filing date -
Mar 6, 2020
priority date (Note) -
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Abstract
A method for producing a button cell includes providing a cell cup, the cell cup having a flat bottom area and a cell cup casing; providing a cell top, the cell top having a flat top area and a cell top casing having a first height; and providing an electrode-separator assembly winding. The cell top casing and the cell cup casing form an overlap area extending in a direction parallel to the axis of the winding and having a second height, the second height being between 20% and 99% of the first height. The method includes applying, in a radial direction perpendicular to the axis of the winding, a pressure on the cell cup casing so as to seal the housing, wherein a portion of the cell top casing that is cylindrical forms at least a part of the overlap area.
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