Composite anode active material a method of preparing the composite anode material and Lithium secondary battery comprising the composite anode active material

Composite anode active material a method of preparing the composite anode material and Lithium secondary battery comprising the composite anode active material

Provided is a composite negative electrode active material comprising: a plurality of silicon particles; a silicon oxide coating layer disposed on each of the plurality of silicon particles; and a carbonaceous material disposed to separate the plurality of silicon particles from each other. A lithiu...

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Bibliographische Detailangaben
Hauptverfasser: CHO JAE PHIL, LEE YOON KWANG
Format: Patent
Sprache:eng ; kor
Schlagworte:
BASIC ELECTRIC ELEMENTS
CHEMISTRY
COMPOUNDS THEREOF
ELECTRICITY
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Zusammenfassung:Provided is a composite negative electrode active material comprising: a plurality of silicon particles; a silicon oxide coating layer disposed on each of the plurality of silicon particles; and a carbonaceous material disposed to separate the plurality of silicon particles from each other. A lithium secondary battery comprising the negative electrode has high capacity and an excellent lifespan. 복수의 실리콘 입자; 상기 복수의 실리콘 입자 각각 상에 배치된 실리콘 산화물 코팅층; 및 상기 복수의 실리콘 입자를 서로 분리하도록 배치되는 탄소질 재료를 포함하는 복합음극활물질이 제공된다.