Button cell having winding electrode and method for the production thereof
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United States of America
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app pub date -
Mar 10, 2020
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Mar 10, 2020
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Abstract
A method for producing a button cell includes: providing a metal cell cup having a cell cup plane region; providing a metal cell top having a cell top plane region; providing a cylindrical electrode winding, the electrode winding being a multi-layer assembly wound in a spiral shape, the multi-layer assembly including an electrode formed from a current collector; connecting a conductor to the current collector; placing the electrode winding into the cell top; inserting the cell top into the cell cup to form a housing in which a strip-shaped portion of the conductor lies flat between (i) an end side of the electrode winding and (ii) a plane region of the cell cup plane region or the cell top plane region; and welding, after forming the housing, the strip-shaped portion of the conductor to a surface of the plane region located in the interior of the housing.
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