Verfahren zur Regenerierung eines Kathodenaktivmaterials und daraus Hergestelltes Regeneriertes Kathodenaktivmaterial

Details

Veröffentlichungs-Nr.

EP4715959

Anmeldetag

15. Januar 2025

Veröffentlichung

4. September 2025

Rechtsraum

EP

Abstract

The present invention relates to a method of preparing a recycled cathode active material and a cathode active material prepared using the same. More particularly, the method of the present invention includes step (a) of heating a waste cathode in which a cathode active material layer is formed on a current collector to thermally decompose a binder and a conductive material in the active material layer, separate the current collector from the cathode active material layer, and recover a cathode active material in the active material layer; step (b) of adding a lithium precursor to the recovered cathode active material and performing annealing at 400 to 1000 °C for 8 to 12 hours; and step (c) of washing the annealed cathode active material with a washing solution.

Anmelder

Firma

LG Energy Solution, Ltd.

Land

🇰🇷 Südkorea