Batteriezelle, Endgerätevorrichtung und Batteriezellenverpackungsverfahren

Details

Veröffentlichungs-Nr.

EP4773357

Anmeldetag

11. Juni 2025

Veröffentlichung

26. Februar 2026

Rechtsraum

EP

IPC

H01M50/105

Abstract

A battery cell, an electronic device, and a battery cell packaging method are provided. The battery cell includes an electrode assembly, a tab, and a packaging pouch. The tab is connected to one side of the electrode assembly along a first direction. The packaging pouch includes a main portion and a sealing portion. The electrode assembly is disposed in the main portion. The main portion includes a top wall as well as a first wall and a second wall that are connected to two sides of the top wall respectively along a second direction. The sealing portion includes a top seal edge and a side seal edge. The tab extends out from the top seal edge. The side seal edge is connected to the first wall. The packaging pouch is formed by folding and hermetically securing a packaging film along the second wall. Along the second direction, a spacing between the electrode assembly and the first wall is W1, and a spacing between the electrode assembly and the second wall is W2, |W1 - W2| ≤ 30 µm. The third direction is a thickness direction of the electrode assembly. The first direction, the second direction, and the third direction are perpendicular to each other. The battery cell can improve safety performance.

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Firmen

Dongguan Amperex Technology Limited
Ningde Amperex Technology Limited

Land

🇨🇳 China

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