ANODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, AND PREPARATION METHOD THEREFOR

• Main Authors: KIM, Hansu, JEONG, Won Joon, CHUNG, Dong Jae
• Format: Patent
• Language: English; French; Korean
• Published: 07.12.2023
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

The present invention relates to an anode active material for a lithium secondary battery, and a preparation method therefor. The anode active material of the present invention comprises silicon, lithium silicate, and a transition-metal-silicon alloy, and thus can significantly improve lifespan properties while maintaining initial efficiency at an excellent level. La présente invention concerne un matériau actif d'anode pour une batterie rechargeable au lithium, et son procédé de préparation. Le matériau actif d'anode de la présente invention comprend du silicium, du silicate de lithium et un alliage métal de transition-silicium, et peut ainsi améliorer significativement les propriétés de durée de vie tout en maintenant l'efficacité initiale à un excellent niveau. 본 발명은 리튬 이차전지용 음극 활물질 및 이의 제조방법에 관한 것으로, 본 발명의 음극 활물질은 규소, 리튬 실리케이트 및 전이금속-규소 합금을 포함하여, 초기 효율을 우수한 수준으로 유지하면서 수명특성을 현저하게 향상시킬 수 있다.