NEGATIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, METHOD FOR MANUFACTURING SAME, AND LITHIUM SECONDARY BATTERY INCLUDING SAME
Provided are a negative electrode active material for a lithium secondary battery, a method for manufacturing the same, and a lithium secondary battery including the same, the negative electrode active material comprising: a core particle including a silicone-based alloy; a carbon nanoparticle attac...
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Format: | Patent |
Sprache: | eng ; fre ; kor |
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Zusammenfassung: | Provided are a negative electrode active material for a lithium secondary battery, a method for manufacturing the same, and a lithium secondary battery including the same, the negative electrode active material comprising: a core particle including a silicone-based alloy; a carbon nanoparticle attached to the surface of the core particle; a coating layer, which surrounds the core particle having the carbon nanoparticle attached to the surface thereof and includes amorphous carbon; and a conductive material positioned on the surface of the coating layer, wherein at least a part of the conductive material is positioned inside the coating layer.
L'invention porte sur un matériau actif d'électrode négative pour une batterie secondaire au lithium, sur son procédé de fabrication et sur une batterie secondaire au lithium le comprenant, le matériau actif d'électrode négative comprenant : une particule de coeur comprenant un alliage à base de silicone; une nanoparticule de carbone fixée à la surface de la particule de coeur; une couche de revêtement, qui entoure la particule de noyau ayant la nanoparticule de carbone fixée à la surface de celle-ci et comprend du carbone amorphe; et un matériau conducteur positionné sur la surface de la couche de revêtement,au moins une partie du matériau conducteur étant positionnée à l'intérieur de la couche de revêtement.
실리콘계 합금을 포함하는 코어 입자, 상기 코어 입자의 표면에 부착된 탄소 나노 입자, 상기 탄소 나노 입자가 표면에 부착된 코어 입자를 둘러싸고 비정질 탄소를 포함하는 코팅층, 그리고 상기 코팅층의 표면에 위치하는 도전재를 포함하고, 상기 도전재 중 적어도 일부는 상기 코팅층의 내부에 위치하는 리튬 이차 전지용 음극 활물질, 이의 제조 방법 및 이를 포함하는 리튬 이차 전지가 제공된다. |
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