ANODE ACTIVE MATERIAL, AND ANODE AND LITHIUM SECONDARY BATTERY COMPRISING SAME

Disclosed are an anode active material, and an anode and a lithium secondary battery, comprising same. The anode active material is coated with a high molecular weight water-based polymer so that volume expansion occurring during charging and discharging of a lithium secondary battery is suppressed...

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Bibliographische Detailangaben
Hauptverfasser:	KIM, Jung Hwan, CHOI, Jung Hyun, O, Min Ju, KIM, Min Ji, JUNG, Dae Soo, ROH, Kwang Chul
Format:	Patent
Sprache:	eng ; fre ; kor
Schlagworte:	BASIC ELECTRIC ELEMENTS ELECTRICITY PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Beschreibung
Zusammenfassung:	Disclosed are an anode active material, and an anode and a lithium secondary battery, comprising same. The anode active material is coated with a high molecular weight water-based polymer so that volume expansion occurring during charging and discharging of a lithium secondary battery is suppressed to improve charge and discharge characteristics and high-rate cycle lifespan characteristics of the battery. L'invention concerne un matériau actif d'anode, et une anode et une batterie secondaire au lithium le comprenant. Le matériau actif d'anode est revêtu d'un polymère à base d'eau de poids moléculaire élevé de telle sorte qu'une expansion de volume se produisant pendant la charge et la décharge d'une batterie secondaire au lithium est supprimée pour améliorer les caractéristiques de charge et de décharge et les caractéristiques de durée de vie de cycle à haut débit de la batterie. 본 발명은 고분자량의 수계 고분자로 음극 활물질을 코팅하여 리튬 이차전지의 충방전시 발생하는 부피 팽창을 억제하여 전지의 충방전 특성 및 고율 사이클 수명 특성을 향상시킬 수 있는 음극 활물질, 이를 포함하는 음극 및 리튬 이차전지를 개시한다.