Jelly Roll und Batterie

Details

Veröffentlichungs-Nr.

EP4752940

Anmeldetag

8. August 2025

Veröffentlichung

3. Juni 2026

Rechtsraum

EP

Abstract

A jelly roll includes a positive electrode plate, a negative electrode plate and a separator located between the positive electrode plate and the negative electrode plate. The positive electrode plate includes a first surface and a second surface opposite to each other in a first direction, the positive electrode plate is provided with a plurality of protruding portions and straight portions located between the adjacent protruding portions. A maximum distance from a vertex of the protruding portion to a plane where the first surface is located is hl, in the first direction, a thickness of the straight portion on the positive electrode plate is h, and 5% ≤ h1/h ≤ 30%. The negative electrode plate includes a negative electrode active layer with a weight percentage content of a silicon element being W1, and 0.3≤ W1/(h1/h) ≤5.

Anmelder

Firma

Zhuhai CosMX Battery Co., Ltd.

Land

🇨🇳 China