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    METHOD FOR DECOMPOSING PHENOLIC BY-PRODUCT
    2.
    发明公开
    METHOD FOR DECOMPOSING PHENOLIC BY-PRODUCT 审中-公开

    公开(公告)号：EP3715338A1

    公开(公告)日：2020-09-30

    申请号：EP19883331.1

    申请日：2019-10-15

    申请人： LG Chem, Ltd.

    发明人： LEE, Sang Beom ,  KANG, Min Suk ,  SHIN, Joon Ho

    IPC分类号： C07C37/86 ,  C07C37/88 ,  C07C37/72 ,  C07C39/04 ,  C07C39/15 ,  C07C15/46 ,  C07C49/78

    摘要： The present invention relates to a method for decomposing a phenolic by-product, and more particularly, to a method for decomposing a phenolic by-product generated in a phenol preparation process, the method including: a step (S10) of adding a phenolic by-product stream, a decomposition apparatus side discharge stream, and process water to a mixing apparatus and mixing the phenolic by-product stream, the decomposition apparatus side discharge stream, and the process water; a step (S20) of adding a mixing apparatus discharge stream discharged from the mixing apparatus to a phase separation apparatus and phase-separating the mixing apparatus discharge stream into an oil phase and an aqueous phase; a step (S30) of feeding an oil phase stream obtained by the phase-separation in the step (S20) and discharged to a decomposition apparatus and decomposing the oil phase stream; and a step (S40) of circulating the decomposition apparatus side discharge stream obtained by the decomposition in the step (S30) to the mixing apparatus in the step (S10).

    POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, MANUFACTURING METHOD THEREFOR, AND LITHIUM SECONDARY BATTERY COMPRISING SAME
    4.
    发明公开
    POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, MANUFACTURING METHOD THEREFOR, AND LITHIUM SECONDARY BATTERY COMPRISING SAME 审中-公开
    锂二次电池用正极活性物质及其制造方法和包含该二次电池的锂二次电池

    公开(公告)号：EP3203556A1

    公开(公告)日：2017-08-09

    申请号：EP15847484.1

    申请日：2015-10-02

    申请人： LG Chem, Ltd.

    发明人： RYU, Ji Hoon ,  JO, Chi Ho ,  KANG, Min Suk ,  SHIN, Sun Sik ,  JUNG, Wang Mo

    IPC分类号： H01M4/525 ,  H01M4/62 ,  H01M4/02 ,  H01M4/36 ,  H01M10/052

    CPC分类号： H01M4/131 ,  H01M4/362 ,  H01M4/366 ,  H01M4/483 ,  H01M4/502 ,  H01M4/523 ,  H01M4/525 ,  H01M4/62 ,  H01M10/052 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/028 ,  H01M2220/20 ,  Y02E60/122

    摘要： The present invention provides a positive electrode active material for a lithium secondary battery including a core including first lithium cobalt oxide, and a surface modifying layer positioned on a surface of the core. The surface modifying layer includes a lithium compound discontinuously distributed on the surface of the core, and second lithium cobalt oxide distributed while making a contact with or adjacent to the lithium compound, with a Li/Co molar ratio of less than 1. The lithium compound includes at least one lithium reactive element selected from the group consisting of Ti, W, Zr, Mn, Mg, P, Ni, Al, Sn, V, Cr, and Mo. The positive electrode active material according to the present invention forms a lithium deficient structure in the positive electrode active material of lithium cobalt oxide and changes two-dimensional lithium transport path into three-dimensional path. The transport rate of lithium ions may increase when applied to a battery, thereby illustrating improved capacity and rate characteristic without decreasing initial capacity. As a result, the positive electrode active material may be useful as a positive electrode active material of a battery for a high voltage with 4.4 V or more.

    摘要翻译： 本发明提供一种用于锂二次电池的正极活性材料，所述锂二次电池包含：包含第一锂钴氧化物的核和位于所述核的表面上的表面改性层。 表面改性层包括不连续地分布在核表面上的锂化合物和以Li / Co摩尔比小于1的方式与锂化合物接触或邻近地分布的第二锂钴氧化物。锂化合物 包括选自由Ti，W，Zr，Mn，Mg，P，Ni，Al，Sn，V，Cr和Mo组成的组中的至少一种锂反应性元素。根据本发明的正极活性材料形成 锂钴氧化物的正极活性物质中的锂缺乏结构，将二维锂输送路径变为三维路径。 当应用于电池时，锂离子的传输速率可能增加，由此说明改进的容量和速率特性而不降低初始容量。 结果，正极活性材料可用作4.4V或更高的高电压电池的正极活性材料。

    METHOD FOR DECOMPOSING PHENOLIC BY-PRODUCTS
    5.
    发明公开
    METHOD FOR DECOMPOSING PHENOLIC BY-PRODUCTS 审中-公开

    公开(公告)号：EP3896051A1

    公开(公告)日：2021-10-20

    申请号：EP20864475.7

    申请日：2020-08-11

    申请人： LG Chem, Ltd.

    发明人： KANG, Min Suk ,  LEE, Sang Beom ,  JANG, Chi Hyun

    IPC分类号： C07C37/74 ,  C07C39/04 ,  C07C7/04 ,  C07C15/46 ,  C07C15/085

    摘要： The present disclosure provides a method for decomposing a phenolic by-product, the method including: a step S10 of feeding a phenolic by-product stream to a decomposition apparatus and thermally cracking the phenolic by-product stream; a step S20 of recovering an active ingredient from a top discharge stream of the decomposition apparatus and discharging a substance having a high boiling point through a bottom discharge stream of the decomposition apparatus; a step S30 of passing a part of the bottom discharge stream of the decomposition apparatus through a reboiler and then feeding the part of the bottom discharge stream of the decomposition apparatus to the decomposition apparatus and discharging a residual stream of the bottom discharge stream of the decomposition apparatus; and a step S40 of feeding a side discharge stream of the decomposition apparatus to the reboiler.

    METHOD FOR DECOMPOSING PHENOLIC BYPRODUCTS
    7.
    发明公开
    METHOD FOR DECOMPOSING PHENOLIC BYPRODUCTS 审中-公开

    公开(公告)号：EP3988535A1

    公开(公告)日：2022-04-27

    申请号：EP21840413.5

    申请日：2021-06-15

    申请人： LG Chem, Ltd.

    发明人： KANG, Min Suk ,  LEE, Sang Beom ,  SON, Ji Hyang ,  JANG, Chi Hyun

    IPC分类号： C07C37/74 ,  C07C39/16 ,  C07C39/04 ,  C07C7/04 ,  C07C15/46 ,  C07C15/085

    摘要： Provided is a method of decomposing phenolic by-products, and more particularly, a method of decomposing phenolic by-products including: supplying a phenolic by-product stream to a decomposition device to perform thermal decomposition; separating an upper discharge stream including effective components and a lower discharge stream including materials having a high boiling point in the decomposition device; supplying the lower discharge stream from the decomposition device, a side discharge stream from the decomposition device, and a process water stream to a mixing device and mixing these streams; and supplying a discharge stream from the mixing device to a layer separation device to separate the dischrage stream from the mixing device into an oil phase and an aqueous phase.

    METHOD FOR DECOMPOSING PHENOLIC BY-PRODUCT
    8.
    发明公开
    METHOD FOR DECOMPOSING PHENOLIC BY-PRODUCT 审中-公开

    公开(公告)号：EP3957623A1

    公开(公告)日：2022-02-23

    申请号：EP20931694.2

    申请日：2020-11-23

    申请人： LG CHEM, LTD.

    发明人： KANG, Min Suk ,  LEE, Sang Beom ,  JANG, Chi Hyun

    IPC分类号： C07C37/70 ,  C07C37/68 ,  B01D3/32

    摘要： The present invention relates to a method of decomposing a phenolic by-product, and more particularly, to a method of decomposing a phenolic by-product, the method including: a step of feeding and thermally cracking a phenolic by-product stream to and in a decomposition apparatus, recovering an active ingredient from a top discharge stream, and discharging a high-boiling substance through a bottom discharge stream; a step of pressurizing each of a side discharge stream of the decomposition apparatus and a bottom discharge stream of the decomposition apparatus; a step of mixing the pressurized side discharge stream of the decomposition apparatus and the pressurized bottom discharge stream of the decomposition apparatus with each other to form a mixed stream; and a step of passing a part of the mixed stream through a reboiler, circulating the part of the mixed stream to the decomposition apparatus, and discharging a residual mixed stream.

    POSITIVE ELECTRODE MATERIAL COMPRISING LITHIUM MANGANESE POSITIVE ELECTRODE ACTIVE MATERIAL HAVING SPINEL STRUCTURE, POSITIVE ELECTRODE AND LITHIUM SECONDARY BATTERY
    10.
    发明公开
    POSITIVE ELECTRODE MATERIAL COMPRISING LITHIUM MANGANESE POSITIVE ELECTRODE ACTIVE MATERIAL HAVING SPINEL STRUCTURE, POSITIVE ELECTRODE AND LITHIUM SECONDARY BATTERY 审中-公开

    公开(公告)号：EP3609003A1

    公开(公告)日：2020-02-12

    申请号：EP18874163.1

    申请日：2018-11-06

    申请人： LG Chem, Ltd.

    发明人： BAEK, So Ra ,  JUNG, Wang Mo ,  KANG, Min Suk ,  LEE, Sang Wook ,  LHO, Eun Sol ,  WANG, Wen Xiu

    IPC分类号： H01M4/36 ,  H01M4/505 ,  H01M4/62 ,  H01M4/525 ,  H01M4/131 ,  H01M10/0525

    摘要： The present invention relates to a positive electrode material including a spinel-structured lithium manganese-based first positive electrode active material and a lithium nickel-manganese-cobalt-based second positive electrode active material, wherein the first positive electrode active material includes a lithium manganese oxide represented by Formula 1 and a coating layer which is disposed on a surface of the lithium manganese oxide and includes at least one element selected from the group consisting of Al, Ti, W, B, F, P, Mg, Ni, Co, Fe, Cr, V, Cu, Ca, Zn, Zr, Nb, Mo, Sr, Sb, Bi, Si, and S, the second positive electrode active material is represented by Formula 2, and an average particle diameter of the second positive electrode active material is greater than an average particle diameter of the first positive electrode active material, and a positive electrode and a lithium secondary battery which include the positive electrode material.

            [Formula 1]     Li 1+a Mn 2-b M 1 b O 4-c A c


    In Formula 1, M 1 is at least one element selected from the group consisting of Al, Li, Mg, Zn, B, W, Ni, Co, Fe, Cr, V, Ru, Cu, Cd, Ag, Y, Sc, Ga, In, As, Sb, Pt, Au, and Si, A is at least one element selected from the group consisting of F, Cl, Br, I, At, and S, 0≤a≤0.2, 0

            [Formula 2]      Li 1+x [Ni y Co z Mn w M 2 v ]O 2-p B p


    In Formula 2, M 2 is at least one element selected from the group consisting of W, Cu, Fe, V, Cr, Ti, Zr, Zn, Al, In, Ta, Y, La, Sr, Ga, Sc, Gd, Sm, Ca, Ce, Nb, Mg, B, and Mo, B is at least one element selected from the group consisting of F, Cl, Br, I, At, and S, 0≤x≤0.3, 0.50≤y