Sekundärbatterie und Elektronische Vorrichtung

Details

Veröffentlichungs-Nr.

EP4773356

Anmeldetag

13. März 2025

Veröffentlichung

2. Oktober 2025

Rechtsraum

EP

Abstract

This application discloses a secondary battery and an electronic device. The secondary battery includes an electrode assembly, a packaging bag, and an insulation adhesive. The packaging bag includes a main portion and a first side seal edge. The main portion accommodates the electrode assembly, and includes a first sidewall and a second sidewall disposed along a thickness direction of the secondary battery. The first side seal edge includes a first connecting portion and a second connecting portion disposed in sequence. The first connecting portion is connected to the main portion. The second connecting portion is bent toward the main portion relative to the first connecting portion. An angle θ is formed between the first connecting portion and the first sidewall, satisfying: 0° < θ < 90°. A thickness of the main portion is less than a width of the first connecting portion. The insulation adhesive covers one end, facing the main portion, of the second connecting portion. The insulation adhesive bonds the first connecting portion to the second connecting portion, and further bonds the second connecting portion to the main portion. This application increases energy density. When sealing an end portion of the second connecting portion, this application reduces the risk of deformation of the first side seal edge.

Anmelder

Firma

Ningde Amperex Technology Limited

Land

🇨🇳 China