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    리튬이차전지용 NCA계열 양극활물질, 그 양극활물질의 제조방법 및 그 양극활물질을 포함한 리튬이차전지
    1.
    发明授权
    리튬이차전지용 NCA계열 양극활물질, 그 양극활물질의 제조방법 및 그 양극활물질을 포함한 리튬이차전지 有权
    具有高容量和安全性的NCA阴极活性材料及其用于锂二次电池的制备方法

    公开(公告)号：KR101440241B1

    公开(公告)日：2014-09-12

    申请号：KR1020130088814

    申请日：2013-07-26

    Applicant: 한국교통대학교산학협력단

    Inventor： 손종태 ,  박태준 ,  강서하

    IPC: H01M4/525 ,  H01M4/46 ,  H01M10/052

    CPC classification number: C01G53/42 ,  C01P2004/61 ,  C01P2004/80 ,  C01P2006/40 ,  H01M4/485 ,  H01M4/525 ,  H01M10/052 ,  Y02E60/12

    Abstract: The present invention relates to a cathode active material for a lithium secondary battery, the material having an ultra high capacity, and a manufacturing method thereof, and more specifically, to a manufacturing method of a cathode active material for a lithium secondary battery including: selecting two elements among nickel, cobalt, iron, manganese and aluminum and preparing a metal aqueous solution; mixing a precipitant and a co-precipitant in the metal aqueous solution and putting and stirring the mixture in a continuous reactor to obtain a precipitate; filtering, washing and drying the precipitate to prepare a precursor; and mixing a lithium salt and aluminum with the precursor. The cathode active material has a remarkably superior capacity compared to that of a previously reported NCA-based material through a change in the content of aluminum and lithium and has a structure with an excellent capacity and life time characteristics since the cathode active material includes transition metals mixed therewith.

    Abstract translation: 本发明涉及一种用于锂二次电池的正极活性物质，具有超高容量的材料及其制造方法，更具体地说，涉及一种用于锂二次电池的正极活性物质的制造方法，包括：选择 镍，钴，铁，锰和铝中的两种元素，并制备金属水溶液; 将沉淀剂和共沉淀剂混合在金属水溶液中，并将混合物在连续反应器中放置并搅拌，得到沉淀物; 过滤，洗涤和干燥沉淀物以制备前体; 并将锂盐和铝与前体混合。 阴极活性材料与先前报道的NCA基材料相比，通过铝和锂的含量的变化具有非常优异的容量，并且具有优异的容量和寿命特性的结构，因为阴极活性材料包括过渡金属 与其混合。

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