BUTTON CELL HAVING WINDING ELECTRODE AND METHOD FOR THE PRODUCTION THEREOF

A button cell includes a metal cell cup, a cell top, a first electrode, and a second electrode. The first electrode includes a first current collector having an active material-free region, and the second electrode includes a second current collector. The button cell further includes a first metal f...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	Gaugler, Winfried
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS ELECTRICITY PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Beschreibung
Zusammenfassung:	A button cell includes a metal cell cup, a cell top, a first electrode, and a second electrode. The first electrode includes a first current collector having an active material-free region, and the second electrode includes a second current collector. The button cell further includes a first metal foil conductor having a first portion attached to the active material-free region of the first current collector and an insulator applied to a rear side of the first metal foil conductor along a second portion of the first metal foil conductor. The first electrode and the second electrode form, along with a first separator layer and a second separator layer, an electrode assembly that is wound in a spiral to form an electrode winding. The second portion of the first metal foil conductor is welded to one of the metal cell cup or the cell top.