Batterie und Elektronische Vorrichtung

Details

Veröffentlichungs-Nr.

EP4756895

Anmeldetag

17. April 2026

Veröffentlichung

10. Juni 2026

Rechtsraum

EP

Abstract

The present disclosure provides a battery and an electronic device. The battery comprises a negative electrode plate (100), a positive electrode plate (200) and an electrolyte, wherein the negative electrode plate (100) comprises a negative electrode current collector (110) and a negative electrode active material layer (120) located on the surface of at least one side of the negative electrode current collector (110), the positive electrode plate (200) comprises a positive electrode current collector (210) and a positive electrode active material layer (220) located on the surface of at least one side of the positive electrode current collector (210), a tab groove (230) is provided on the positive electrode active material layer (220) with a positive tab (240) accommodated in the tab groove (230) and a tab adhesive layer (250) provided on the surface of the positive tab (240), a groove (130) is provided on the negative electrode active material layer (120), the tab groove (230) is arranged opposite the groove (130) in the third direction of the positive electrode plate (200), and an insulating adhesive layer (300) is provided in the groove (130), and the electrolyte comprises a fluorinated solvent, and the mass content percentage of the fluorinated solvent in the electrolyte is m1%, where 5% ≤ m1% ≤ 50%. The battery of the present disclosure can provide the preset groove in the negative electrode region with a certain corrosion resistance, such that the cycling life and safety performance of the battery can be improved.

Anmelder

Firma

Zhuhai CosMX Battery Co., Ltd.

Land

🇨🇳 China