ANODE ACTIVE MATERIAL AND MANUFACTURING METHOD THEREFOR

• Main Authors: LEE, Yong Ju, PARK, Se Mi, KIM, Dong Hyuk, OH, Il Geun
• Format: Patent
• Language: English; French; Korean
• Published: 22.05.2020
• Subjects: BASIC ELECTRIC ELEMENTS; CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; DIFFUSION TREATMENT OF METALLIC MATERIAL; ELECTRICITY; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; METALLURGY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION

The present invention relates to an anode active material comprising: silicon-based particles; a carbon coating layer which is formed on the surface of the silicon-based particles and which comprises transition metals; and carbon nanotubes (CNTs), wherein one end of each of the CNTs is connected with the transition metals, and the amount of transition metals is 0.03-30 parts by weight on the basis of 100 parts by weight of the sum of the amount of the carbon coating layer and the CNTs. La présente invention concerne un matériau actif d'anode comprenant : des particules à base de silicium ; une couche de revêtement de carbone qui est formée sur la surface des particules à base de silicium et qui comprend des métaux de transition ; et des nanotubes de carbone (CNT), une extrémité de chacun des CNT étant reliée aux métaux de transition, et la quantité de métaux de transition est de 0,03 à 30 parties en poids sur la base de 100 parties en poids de la somme de la quantité de la couche de revêtement de carbone et des CNT. 본 발명은 실리콘계 입자; 상기 실리콘계 입자 표면에 형성되어 있고 전이금속을 포함하는 탄소 코팅층; 및 탄소 나노 튜브(CNT)를 포함하고, 상기 탄소 나노 튜브의 일단은 상기 전이금속과 연결되어 있으며, 상기 전이금속은 상기 탄소 코팅층 및 탄소 나노 튜브의 합계량 100 중량부를 기준으로 0.03 중량부 내지 30 중량부인 음극 활물질에 관한 것이다.