Verfahren zur Erhöhung der Sicherheit von Lithium-Ionen-Batterien

Details

Veröffentlichungs-Nr.

EP4760819

Anmeldetag

19. Februar 2025

Veröffentlichung

17. Juni 2026

Rechtsraum

EP

Abstract

Method for increasing safety of lithium-ion batteries includes: (A), heating heavy oil to obtain a raw coke; (B), heating the raw coke to 850-900°C for at least 4 hours at heating rate of 3-5°C/min to obtain a carbon-containing material; (C), grinding and grading the carbon-containing material, taking out a carbon-containing powder with D<50> of 8-12µm and D<10> of 1-8µm; (D), heating the carbon-containing powder to 1030-1220°C for at least 4 hours at heating rate of 3-10°C/min to obtain a carbon material powder; (E), after adding pitch accounting for at least 4wt% of the carbon material powder to the carbon material powder, heating the carbon material powder to 1030-1220°C for at least 5 hours at heating rate of 0.90-1.25°C/min, to obtain soft carbon modified by pitch; (F), adding the soft carbon to graphite as an anode material, and a weight ratio of the soft carbon to the graphite is 1: 1-39.

Anmelder

Firma

CPC Corporation, Taiwan

Land

🇹🇼 Taiwan