Verfahren zur Herstellung von mit Kohlenstoff Beschichtetem Lithium-Eisen-Phosphat für Sekundärbatterien

Details

Veröffentlichungs-Nr.

EP4782396

Anmeldetag

24. Januar 2025

Veröffentlichung

29. Juli 2026

Rechtsraum

EP

IPC

C01B25/45, H01M4/36, H01M4/58

Abstract

The present disclosure relates to a method for synthesizing a carbon coated lithium iron phosphate, the method comprising the following steps:a. Preparing a FePO₄ hydrate precursor by mixing an iron containing compound and a phosphorus containing compound in a solvent at a pH ranging from 1.5 to 3.5 in presence of a precipitating agent that is also a carbon coating source;b. Drying the FePO₄ hydrate precursor;c. Mixing the dried FePO₄ precursor with a lithium salt and a source of carbon;d. Sintering the mixture obtained after step c) in an inert atmosphere at a temperature ranging from 550°C to 1000°C for 1 to 15h.

Anmelder

Firmen

OCP SA
Université Mohammed VI Polytechnique

Land

🇲🇦 MA

Fachgebiete