Verfahren zur Wiederverwertung von Anodenmaterial für Lithium-Ionen-Sekundärbatterie, daraus Erhaltenes Recyclinganodenmaterial und Lithium-Ionen-Sekundärbatterie damit

Details

Veröffentlichungs-Nr.

EP4748463

Anmeldetag

25. November 2025

Veröffentlichung

27. Mai 2026

Rechtsraum

EP

Abstract

An object of the invention is to provide a method for economically and environmentally friendly collecting carbon powder for an anode from a waste lithium-ion secondary battery, a recycled anode carbon powder obtained from therefrom, and a lithium-ion secondary battery to which the recycled anode carbon powder is applied. To achieve the object, a method for recycling an anode material includes a step (a) of loading a heat treatment object including the anode material into a heat treatment furnace, a step (b) of raising an internal temperature of the heat treatment furnace to increase to a range of about 100°C to about 400°C, a step (c) of heat-treating the heat treatment object at the increased temperature, and a step (d) of discharging first powder made after the heat treatment of the heat treatment object is completed. The first powder includes recycled anode powder selected from the group consisting of recycled carbon powder, silicon powder, silicon oxide powder, carbon-silicon composite material powder, or combinations thereof, and the heat treatment object includes at least a portion of a waste lithium-ion secondary battery or wastes generated during a process of manufacturing the lithium-ion secondary battery or a process of manufacturing the anode material.

Anmelder

Firmen

AK tree Co., Ltd
Libus987 Inc

Land

🇰🇷 Südkorea