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    METHOD FOR PREPARING CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY
    2.
    发明申请
    METHOD FOR PREPARING CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY 有权
    用于锂二次电池制备阴极活性材料的方法

    公开(公告)号：US20110042610A1

    公开(公告)日：2011-02-24

    申请号：US12933629

    申请日：2009-03-24

    申请人： Jaephil Cho ,  Junho Eom ,  Yoon Han Chang ,  Chang-Won Park ,  Seung-Won Lee ,  Sang-Hoon Jeon ,  Byung Do Park

    发明人： Jaephil Cho ,  Junho Eom ,  Yoon Han Chang ,  Chang-Won Park ,  Seung-Won Lee ,  Sang-Hoon Jeon ,  Byung Do Park

    IPC分类号： H01M4/88

    CPC分类号： H01M4/5825 ,  B82Y30/00 ,  C01B25/45 ,  C01G51/42 ,  C01P2002/52 ,  C01P2002/72 ,  C01P2002/85 ,  C01P2004/03 ,  C01P2004/04 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2004/64 ,  C01P2004/84 ,  C01P2006/40 ,  H01M4/366 ,  H01M4/485 ,  H01M4/525 ,  H01M10/0525

    摘要： Disclosed is a method for preparing a cathode active material for a lithium secondary battery, and the preparing method includes: adding a phosphorus compound to a transition metal oxide dispersion liquid to prepare a coating liquid; drying the coating liquid to prepare a powder including phosphorus oxide coated on the surface of the transition metal oxide; and dry-mixing the powder coated with the phosphorus oxide with a lithium intercalation compound, and then firing the mixture to form a solid solution compound of Li-M1-M2-P—O (where M1 is a transition metal derived from transition metal oxide, and M2 is a metal derived from lithium intercalation compound) on the surface of the lithium intercalation compound.The method for preparing a cathode active material for a lithium secondary battery simplifies the conventional preparing process to save process cost, and it provides comparable electrochemical characteristics to a cathode active material obtained from a wet process.

    摘要翻译： 公开了一种锂二次电池正极活性物质的制备方法，其制备方法包括：向过渡金属氧化物分散液中添加磷化合物，制备涂布液; 干燥涂布液以制备包含在过渡金属氧化物表面上的氧化磷的粉末; 将含有氧化磷的粉末与锂嵌入化合物进行干混，然后烧成混合物，形成Li-M1-M2-P-O的固溶体化合物（其中，M1为过渡金属氧化物的过渡金属 ，并且M2是来自锂嵌入化合物的金属）在锂嵌入化合物的表面上。 制备用于锂二次电池的正极活性材料的方法简化了常规的制备方法以节省工艺成本，并且与从湿法获得的阴极活性材料提供了可比较的电化学特性。

    ELECTROCHEMICAL CELL
    3.
    发明申请
    ELECTROCHEMICAL CELL 有权
    电化学细胞

    公开(公告)号：US20090305140A1

    公开(公告)日：2009-12-10

    申请号：US12234268

    申请日：2008-09-19

    申请人： Jaephil Cho ,  Junho Eom

    发明人： Jaephil Cho ,  Junho Eom

    IPC分类号： H01M4/48 ,  H01B1/02

    CPC分类号： H01M4/505 ,  H01M4/485 ,  H01M4/525 ,  Y02E60/122

    摘要： The present invention relates to a positive active material for an electrochemical cell including a compound having a nano-shape and represented by the following Formula 1. Lix[Li1-y-zM1yM2z]O2-αDα  [Formula 1] wherein, 0.8≦x≦1.1, 0≦y≦0.5, 0≦z≦0.5, and 0≦α≦0.05, M1 and M2 are independently selected from transition elements, and D is selected from the group consisting of O, F, S, P, and combinations thereof. The positive active material of the present invention has high reversible capacity and an excellent cycle life characteristic, and in particular, an excellent cycle life characteristic at a high rate.

    摘要翻译： 本发明涉及一种用于电化学电池的正极活性材料，其包括具有纳米形状并由下式1表示的化合物.Lix [Li1-y-zM1yM2z] O2-αDalpha[式1]其中0.8 <= x <= 1.1,0 <= y <= 0.5,0 <= z <= 0.5，0 <=α<= 0.05，M1和M2独立地选自过渡元素，D选自O， F，S，P及其组合。 本发明的正极活性物质具有高的可逆容量和优异的循环寿命特性，特别是高速率的优异的循环寿命特性。