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    SECONDARY BATTERY ACTIVE MATERIAL
    1.
    发明申请
    SECONDARY BATTERY ACTIVE MATERIAL 有权

    公开(公告)号：US20230074377A1

    公开(公告)日：2023-03-09

    申请号：US17632305

    申请日：2020-08-06

    申请人： L&F CO., LTD.

    发明人： Hye Yun JUNG ,  Sung Kyun CHANG ,  Sang Hoon JEON ,  Sun Hye LIM ,  Jae Yeoung PARK ,  Doe Hyoung KIM

    IPC分类号： H01M4/36 ,  H01M10/052 ,  H01M4/505 ,  H01M4/525

    摘要： Disclosed is an active material for a secondary battery, the active material containing aggregates, each including a plurality of single particles, or a mixture of the aggregates with non-aggregated single particles, the active material including a first region having a relatively high content of an additional element (X) and a second region having a relatively low content of the additional element (X), wherein the first region is at least one region of a grain boundary formed whereby the surfaces of the single particles constituting the aggregate contact one another and a void (pore or gap) between the single particles, and/or a surface region of each single particle, wherein the additional element (X) includes at least one selected from the group consisting of Zr, Ti, Al, W, B, P, Mn, Ni, Mg, Cr, Ca, V, Sr, Y, F, Zn, Ga, Sn, Ru, Ce, La, and Si.

    Positive active material for rechargeable lithium battery, method of preparing the same, and rechargeable lithium battery including the same
    5.
    发明授权
    Positive active material for rechargeable lithium battery, method of preparing the same, and rechargeable lithium battery including the same 有权
    用于可再充电锂电池的正极活性材料，其制备方法和包括其的可再充电锂电池

    公开(公告)号：US07687203B2

    公开(公告)日：2010-03-30

    申请号：US11835887

    申请日：2007-08-08

    申请人： Jaephil Cho ,  Youn-Han Chang ,  Jin-Young Kim ,  Yoo-Jung Kim ,  Hyun-Jung Kim ,  Hae-Suk Hwang

    发明人： Jaephil Cho ,  Youn-Han Chang ,  Jin-Young Kim ,  Yoo-Jung Kim ,  Hyun-Jung Kim ,  Hae-Suk Hwang

    IPC分类号： H01M4/58

    CPC分类号： H01M4/483 ,  H01M4/362 ,  H01M4/525 ,  H01M4/581 ,  H01M2004/028

    摘要： The positive active material according to one embodiment of the present invention includes a composite metal oxide of the following Formula 1, and a compound being capable of intercalating and deintercalating lithium having the composite metal oxide coated on the surface thereof. M1-xAlO2   [Chemical Formula 1] Wherein, in the above Formula 1, M is selected from the group consisting of an alkali metal, an alkaline-earth metal, and combinations thereof, and 0.03≦x≦0.95. The composite metal oxide increases impregnation of an electrolyte, improves lithium mobility, and decreases internal resistance of a rechargeable lithium battery, and thereby improves discharge capacity and cycle-life characteristics.

    摘要翻译： 根据本发明的一个实施方案的正极活性物质包括下式1的复合金属氧化物和能够在其表面上涂覆复合金属氧化物的锂的嵌入和脱嵌化合物。 M1-xAlO2 [化学式1]其中，在上述式1中，M选自碱金属，碱土金属及其组合，0.03和n1E; x和nlE; 0.95。 复合金属氧化物增加电解质的浸渍，提高锂的迁移率，降低可再充电锂电池的内阻，从而提高放电容量和循环寿命特性。

    POSITIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY, METHOD OF PREPARING THE SAME, AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME
    6.
    发明申请
    POSITIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY, METHOD OF PREPARING THE SAME, AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME 有权
    用于可充电锂电池的正极活性材料，其制备方法和包括其的可充电锂电池

    公开(公告)号：US20080153001A1

    公开(公告)日：2008-06-26

    申请号：US11835887

    申请日：2007-08-08

    申请人： Jaephil CHO ,  Youn-Han Chang ,  Jin-Young Kim ,  Yoo-Jung Kim ,  Hyun-Jung Kim ,  Hae-Suk Hwang

    发明人： Jaephil CHO ,  Youn-Han Chang ,  Jin-Young Kim ,  Yoo-Jung Kim ,  Hyun-Jung Kim ,  Hae-Suk Hwang

    IPC分类号： H01M10/00 ,  H01M10/04

    CPC分类号： H01M4/483 ,  H01M4/362 ,  H01M4/525 ,  H01M4/581 ,  H01M2004/028

    摘要： The positive active material according to one embodiment of the present invention includes a composite metal oxide of the following Formula 1, and a compound being capable of intercalating and deintercalating lithium having the composite metal oxide coated on the surface thereof. M1-xAlO2 [Chemical Formula 1] Wherein, in the above Formula 1, M is selected from the group consisting of an alkali metal, an alkaline-earth metal, and combinations thereof, and 0.03≦x≦0.95. The composite metal oxide increases impregnation of an electrolyte, improves lithium mobility, and decreases internal resistance of a rechargeable lithium battery, and thereby improves discharge capacity and cycle-life characteristics.

    摘要翻译： 根据本发明的一个实施方案的正极活性物质包括下式1的复合金属氧化物和能够在其表面上涂覆复合金属氧化物的锂的嵌入和脱嵌化合物。 <？in-line-formula description =“In-line Formulas”end =“lead”？> M 1-x A 2 O 2化学式1 < -line-formula description =“In-line Formulas”end =“tail”？>其中，在上述式1中，M选自碱金属，碱土金属及其组合，以及 0.03 <= x <= 0.95。 复合金属氧化物增加电解质的浸渍，提高锂的迁移率，降低可再充电锂电池的内阻，从而提高放电容量和循环寿命特性。

    POSITIVE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY
    8.
    发明申请
    POSITIVE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY 有权

    公开(公告)号：US20220344653A1

    公开(公告)日：2022-10-27

    申请号：US17640461

    申请日：2019-09-25

    申请人： L&F CO., LTD

    发明人： Sung Kyun CHANG ,  Jeong A GU ,  Hyun Gyu HAN ,  Han Ah KIM

    IPC分类号： H01M4/525

    摘要： Disclosed is a cathode active material for lithium secondary batteries containing lithium transition metal composite oxide in the form of primary particles having a one-body structure, the cathode active material having a ratio (R/L) of a right area (R) to a left area (L) in a particle size distribution (PSD) graph of less than 1.1, based on a maximum point of a main peak in the particle size distribution (PSD) graph, in which an X-axis represents a particle size (μm) and a Y-axis represents a relative particle amount (%).