이차전지용 리튬 과량 양극 활물질
    12.
    发明公开
    이차전지용 리튬 과량 양극 활물질 审中-实审
    锂离子电池活性材料可充电电池

    公开(公告)号:KR1020140119622A

    公开(公告)日:2014-10-10

    申请号:KR1020130150319

    申请日:2013-12-05

    Abstract: The present invention relates to a cathode active material for a secondary battery and, more specifically, to a new cathode active material for a secondary battery having extremely improved capacity properties and lifetime properties by solving problems of an existing lithium rich cathode active material. The lithium rich cathode active material for secondary battery includes an element having crystal radius of 0.65-9.8 in the outermost portion and in 2 micrometers from the outermost portion, and is represented by chemical formula 1. [Chemical formula 1] Li1+xNiαMnβ-δCoγO2 (In chemical formula 1, x is 0.4-0.7, alpha is 0.05-0.4, beta is 0.5-0.8, and gamma is 0.-0.4).

    Abstract translation: 本发明涉及一种用于二次电池的阴极活性材料,更具体地,涉及一种通过解决现有的富锂正极活性材料的问题而具有极大改善的容量性能和寿命性能的新型二次电池用正极活性物质。 用于二次电池的富锂正极活性材料包括在最外部分中晶体半径为0.65-9.8,最外部分为2微米的元素,由化学式1表示。[化学式1] Li1 +xNiMnβ-δCoγO2 (在化学式1中,x为0.4-0.7,α为0.05-0.4,β为0.5-0.8,γ为0.-0.4)。

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