Elektrodenanordnung mit Daran Befestigtem Isolierband und Lithiumsekundärbatterie damit

Details

Veröffentlichungs-Nr.

EP4712195

Anmeldetag

7. März 2025

Veröffentlichung

25. September 2025

Rechtsraum

EP

Abstract

Disclosed are an electrode assembly having an insulating tape attached thereto, the electrode assembly including an electrode stack constituted by a plurality of positive electrodes and a plurality of negative electrodes stacked alternately with a separator disposed therebetween, a positive electrode lead coupled to a positive electrode tab bundle constituted by positive electrode tabs protruding respectively from outer peripheries of the plurality of positive electrodes and overlapping each other, a negative electrode lead coupled to a negative electrode tab bundle constituted by negative electrode tabs protruding respectively from outer peripheries of the plurality of negative electrodes and overlapping each other, a first insulating tape attached to at least a part of an upper surface of the electrode stack, to an upper surface of a positive electrode coupling portion where the positive electrode tab bundle and the positive electrode lead are coupled to each other, and to an upper surface of a negative electrode coupling portion where the negative electrode tab bundle and the negative electrode lead are coupled to each other, and a second insulating tape attached to at least a part of a lower surface of the electrode stack, to a lower surface of the positive electrode coupling portion where the positive electrode tab bundle and the positive electrode lead are coupled to each other, and to a lower surface of the negative electrode coupling portion where the negative electrode tab bundle and the negative electrode lead are coupled to each other, wherein the positive electrode tab bundle and the negative electrode tab bundle are formed at the same outer periphery so as to be spaced apart from each other, and at least one of the first insulating tape and the second insulating tape includes a cut-out portion formed such that at least a part between a positive electrode portion attached to the positive electrode coupling portion and a negative electrode portion attached to the negative electrode coupling portion is removed, and a lithium secondary battery including the same.

Anmelder

Firma

LG Energy Solution, Ltd.

Land

🇰🇷 Südkorea