Positive electrode material for lithium secondary battery and Lithium secondary batteries comprising the same
The present invention relates to a positive electrode material for a lithium secondary battery having improved stability and energy density, and a lithium secondary battery including the same. The positive electrode material for a lithium secondary battery according to an embodiment of the present i...
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| Format: | Patent |
| Sprache: | eng ; kor |
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| Zusammenfassung: | The present invention relates to a positive electrode material for a lithium secondary battery having improved stability and energy density, and a lithium secondary battery including the same. The positive electrode material for a lithium secondary battery according to an embodiment of the present invention forms a positive electrode of a lithium secondary battery and includes: a positive electrode active material which is made of an NCM-based active material containing Ni, Co, and Mn and is a single crystal; a first conductive material made of carbon nanotubes (CNT); a second conductive material made of graphite; and a binder for bonding the positive electrode active material, the first conductive material, and the second conductive material to each other.
본 발명은 안정성과 에너지 밀도를 향상시킨 리튬 이차전지용 양극재 및 이를 포함하는 리튬 이차전지에 관한 것이다. 본 발명의 일 실시형태에 따른 리튬 이차전지용 양극재는 리튬 이차전지의 양극을 형성하는 양극재로서, Ni, Co 및 Mn을 포함하는 NCM계 활물질로 형성되면서 단결정인 양극활물질과; 탄소나노튜브(CNT)로 이루어진 제 1 도전재와; 흑연(graphite)로 이루어진 제 2 도전재와; 상기 양극활물질, 제 1 도전재 및 제 2 도전재를 상호 간에 접착시키는 바인더를 포함한다. |
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