Montageverfahren für Zylindrische Batterie und Zylindrische Batterie

Details

Veröffentlichungs-Nr.

EP4742338

Anmeldetag

3. Juli 2024

Veröffentlichung

9. Januar 2025

Rechtsraum

EP

IPC

H01M10/04, H01M50/188

Abstract

The present application relates to the technical field of energy batteries, and discloses a cylindrical battery assembly method and a cylindrical battery. The assembly method includes the following steps: mounting a positive electrode column into a mounting hole in an insulating and sealing manner; arranging a riveting block inside a shell and connecting the riveting block to an outer circumference of a riveting bar of the positive electrode column; connecting a positive electrode current collector plate to a positive electrode tab of an electrode set; placing the electrode set with the positive electrode current collector plate into the shell, and clamping a boss into a groove; welding mating portions of a bottom surface of the groove and a top surface of the boss outside the shell; connecting a negative electrode current collector plate to a negative electrode tab of the electrode set and the shell, to introduce negative electrode current of the electrode set into the shell; and sealing and connecting a negative electrode cover plate to an opening of a second end surface of the shell. The mating between the top surface of the boss and the bottom surface of the groove increases a welding area, and decreases a thickness of the positive electrode column, thereby reducing welding difficulty, improving assembly efficiency, reducing contact internal resistance, increasing the current-carrying capacity of the battery, and improving product yield. The riveting block can increase structural strength of a positive electrode side of a battery cell.

Anmelder

Firma

SVOLT Energy Technology Co., Ltd.

Land

🇨🇳 China

Fachgebiete