Anode active material for lithium secondary battery and method for preparing the same

• Main Authors: HANSU KIM, JEONG WON JOON, DONG JAE CHUNG
• Format: Patent
• Language: English; Korean
• Published: 11.12.2023
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

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. 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.