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    LITHIUM MANGANESE-BASED OXIDE AND POSITIVE ELECTRODE ACTIVE SUBSTANCE COMPRISING SAME
    6.
    发明公开
    LITHIUM MANGANESE-BASED OXIDE AND POSITIVE ELECTRODE ACTIVE SUBSTANCE COMPRISING SAME 有权
    LITHIUMMANGANOXID UND POSITIVELEKTRODENMATERIAL DAMIT

    公开(公告)号：EP2942329A1

    公开(公告)日：2015-11-11

    申请号：EP14830357.1

    申请日：2014-04-08

    申请人： LG Chem, Ltd.

    发明人： LEE, Bo Ram ,  JEON, Hye Lim ,  SHIN, Sun Sik ,  LEE, Sang Wook ,  JUNG, Wang Mo

    IPC分类号： C01G45/00 ,  C01D15/00 ,  H01M10/052

    CPC分类号： H01M4/505 ,  C01G53/56 ,  C01P2002/32 ,  C01P2006/40 ,  H01M10/052 ,  H01M10/0525 ,  H01M2220/20 ,  H01M2220/30 ,  Y02E60/122

    摘要： Disclosed is a lithium manganese (Mn)-based oxide including Mn as an essential transition metal and having a layered crystal structure, in which the amount of Mn is greater than that of other transition metal(s), the lithium manganese-based oxide exhibits flat level section characteristics in which release of oxygen occurs together with lithium deintercalation during first charging in a high voltage range of 4.4 V or higher, and at least one of a transition metal layer including Mn and an oxygen layer is substituted or doped with a pillar element.

    摘要翻译： 公开了一种锰（Mn）基氧化物，其包含Mn作为必需的过渡金属，并且具有层状晶体结构，其中Mn的量大于其它过渡金属的量，所述锂锰基氧化物表现出 在4.4V或更高的高电压范围内的第一次充电期间，与锂脱嵌一起发生氧的平坦部分特性，以及包括Mn和氧层的过渡金属层中的至少一个被取代或掺杂有柱 元件。

    POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY AND METHOD FOR PREPARING POSITIVE ELECTRODE ACTIVE MATERIAL
    8.
    发明公开
    POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY AND METHOD FOR PREPARING POSITIVE ELECTRODE ACTIVE MATERIAL 审中-公开

    公开(公告)号：EP3909916A1

    公开(公告)日：2021-11-17

    申请号：EP20871547.4

    申请日：2020-09-29

    申请人： LG Chem, Ltd.

    发明人： SHIN, Ho Suk ,  KIM, Won Tae ,  YU, Jong Yeol ,  LIM, Young Geun ,  SHIN, Sun Sik ,  HA, Seoung Chul

    IPC分类号： C01G53/00 ,  H01M4/525 ,  H01M4/505 ,  H01M10/052

    摘要： The present invention relates to a method for preparing a positive electrode active material, including: a first step of adding to a reactor, a reaction solution including a transition metal-containing solution containing at least one among nickel, cobalt, and manganese, an ammonium ion-containing solution, and a basic aqueous solution to form seeds of precursor particles; a second step of preparing carbon-introduced precursor particles by adding a carbon source to the reactor when the precursor particles grow until an average particle diameter (D 50 ) of the precursor particles is 30% in size of the average particle diameter (D 50 ) of the finally prepared precursor particles; and a third step of mixing the carbon-introduced precursor particles and a lithium raw material and sintering the mixture at a temperature of 750 °C to 950 °C to prepare positive electrode active material particles, wherein the carbon introduced to the precursor particles is volatilized by the sintering of the third step to form cavities in the positive electrode active material particles, and a cavity ratio of the positive electrode active material is 5% to 20%.

    PRECURSOR FOR PREPARATION OF LITHIUM COMPOSITE TRANSITION METAL OXIDE AND METHOD OF PREPARING THE SAME
    10.
    发明公开
    PRECURSOR FOR PREPARATION OF LITHIUM COMPOSITE TRANSITION METAL OXIDE AND METHOD OF PREPARING THE SAME 审中-公开
    制备锂复合过渡金属氧化物的前体及其制备方法

    公开(公告)号：EP3291339A1

    公开(公告)日：2018-03-07

    申请号：EP17194994.4

    申请日：2013-04-30

    申请人： LG CHEM, LTD.

    发明人： PARK, Byung Chun ,  SHIN, Sun Sik ,  PARK, Sang Min ,  SHIN, Ho Suk ,  JEON, Hye Lim ,  LEE, Bo Ram

    IPC分类号： H01M4/1391 ,  H01M4/505 ,  H01M4/13 ,  H01M10/052 ,  C01G45/02

    CPC分类号： H01M4/505 ,  C01G45/00 ,  C01G45/02 ,  C01G53/006 ,  C01G53/44 ,  C01P2004/03 ,  H01M4/131 ,  H01M4/362 ,  H01M4/525

    摘要： Disclosed are a transition metal precursor for preparation of a lithium composite transition metal oxide, the transition metal precursor including a composite transition metal compound represented by Formula 1 below and a hydrocarbon compound, and a method of preparing the same:

             Mn a M b (OH 1-x ) 2      (1)

    wherein M is at least two selected from the group consisting of Ni, Co, Mn, Al, Cu, Fe, Mg, B, Cr, and second period transition metals; 0.4≤a≤1; 0≤b≤0.6; a+b≤1; and 0
    The transition metal precursor includes a particular composite transition metal compound and a hydrocarbon compound, and thus, when a lithium composite transition metal oxide is prepared using the same, carbon may be present in lithium transition metal oxide particles and/or on surfaces thereof, whereby a secondary battery including the lithium composite transition metal oxide exhibits excellent rate characteristics and long lifespan.

    摘要翻译： 公开了用于制备锂复合过渡金属氧化物的过渡金属前体，所述过渡金属前体包含由下式1表示的复合过渡金属化合物和烃化合物及其制备方法：MnaMb（OH 1-x） 2 ...（1）其中M为选自由Ni，Co，Mn，Al，Cu，Fe，Mg，B，Cr和第二周期过渡金属组成的组中的至少两种; 0.4≤a≤1; 0≤b≤0.6; 一个+b≤1; 并且0