Batteriezelle, Batterievorrichtung, Energiespeichervorrichtung, Energiespeichersystem und Elektrische Vorrichtung

Details

Veröffentlichungs-Nr.

EP4819246

Anmeldetag

26. Dezember 2025

Veröffentlichung

30. Juli 2026

Rechtsraum

EP

IPC

H01M4/587

Abstract

The present application relates to the field of battery technologies, and in particular, to a battery cell, a battery apparatus, an energy storage apparatus, an energy storage system, and a power consuming apparatus. The present application provides a battery cell, including an electrode assembly. The electrode assembly includes a positive electrode sheet, a negative electrode sheet, and a separator. The negative electrode sheet includes a negative electrode current collector and a negative electrode material layer disposed on at least one side of the negative electrode current collector. The negative electrode material layer includes a negative electrode active material. The negative electrode active material includes amorphous carbon-coated graphite. The amorphous carbon-coated graphite includes a graphite core and an amorphous carbon coating layer on a surface of the graphite core, where an interplanar spacing of (002) crystal planes of the amorphous carbon is D1, an interplanar spacing of (002) crystal planes of the graphite core is D2, and 1.0 < D1/D2 ≤ 1.1. The positive electrode sheet includes a positive electrode current collector and a positive electrode material layer disposed on at least one side of the positive electrode current collector. The positive electrode material layer includes a positive electrode active material. The positive electrode active material includes a carbon-coated lithium iron phosphate material. In a Raman spectrum of the carbon-coated lithium iron phosphate material, Id/Ig ≤ 1.5.

Anmelder

Firma

Contemporary Amperex Technology Co., Limited

Land

🇨🇳 China

Fachgebiete