Negativelektrodenplatte und Batterie

Details

Veröffentlichungs-Nr.

EP4760799

Anmeldetag

24. Oktober 2025

Veröffentlichung

17. Juni 2026

Rechtsraum

EP

Abstract

The present invention relates to the technical field of batteries, and in particular relates to a negative electrode plate and a battery. The negative electrode plate comprises a negative electrode current collector and a negative electrode active coating layer on a surface of at least one side of the negative electrode current collector, wherein the negative electrode active coating layer comprises silicon-based particles; the number of the silicon-based particles in a region of 100 µm x 100 µm of the surface of the negative electrode active coating layer is a, 1 ≤ a ≤ 50; the average sphericity of the silicon-based particles is b, 0.66 ≤ b ≤ 1; and a and b satisfy: 1 ≤ a/b ≤ 67, thereby the degree of self-discharge of the battery can be reduced and the high-temperature storage performance of the battery can be improved.

Anmelder

Firma

Zhuhai CosMX Battery Co., Ltd.

Land

🇨🇳 China