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42 条记录 (耗时 0.016 秒)

    CATHODE ACTIVE MATERIAL, LITHIUM SECONDARY BATTERY COMPRISING SAME, AND METHOD FOR PREPARING SAME
    12.
    发明公开
    CATHODE ACTIVE MATERIAL, LITHIUM SECONDARY BATTERY COMPRISING SAME, AND METHOD FOR PREPARING SAME 审中-公开
    维多利亚州立大学维多利亚州立大学

    公开(公告)号：EP3012890A1

    公开(公告)日：2016-04-27

    申请号：EP14837821.9

    申请日：2014-08-06

    申请人： LG Chem, Ltd.

    发明人： JIN, Joo Hong ,  LEE, Dae Jin ,  SHIN, Sun Sik ,  KONG, Woo Yeon ,  JUNG, Wang Mo

    IPC分类号： H01M4/525 ,  H01M4/58 ,  H01M10/052

    CPC分类号： H01M4/131 ,  H01M4/0402 ,  H01M4/043 ,  H01M4/0471 ,  H01M4/1391 ,  H01M4/366 ,  H01M4/505 ,  H01M4/525 ,  H01M4/62 ,  H01M4/628 ,  H01M10/0525 ,  H01M2004/028 ,  H01M2220/10 ,  H01M2220/20

    摘要： Disclosed are a cathode active material and a lithium secondary battery including the same, and a method of manufacturing the cathode active material, the method including:
    (a) manufacturing a lithium metal oxide according to formula 1 below:

            Li 1+z Ni a Mn b Co 1-(a+b) O2     (1)

    wherein 0≤z≤0.1, 0.1≤a≤0.8, 0.1≤b≤0.8 and a+b
    (b) dry mixing the lithium metal oxide, and a precursor including zirconium and fluorine; and
    (c) changing the precursor including zirconium and fluorine into ZrO 2 and substituting some of oxygen (O) anions with F by heat-treatment after dry mixing of step (b),
    wherein the cathode active material is coated with ZrO 2 and F.

    摘要翻译： 公开了一种正极活性物质和包含该正极活性物质的锂二次电池及其制造方法，所述方法包括：（a）制备下式1的锂金属氧化物：€ƒ€ƒ€ ƒ€ƒ€ƒ€ƒ€ƒLi1 + z Ni a Mn b Co 1-（a + b）O2€ƒ€ƒ€ƒ€ƒ（1）其中0‰¤‰¤0.1,0.1‰¤ a‰¤0.8，0.1‰¤b‰¤0.8和a + b <1; （b）将锂金属氧化物和包含锆和氟的前体干混; 和（c）通过步骤（b）的干混后，通过热处理将包含锆和氟的前体改变成ZrO 2并用F代替一些氧（O）阴离子，其中正极活性材料涂覆有ZrO 2和F 。

    STOICHIOMETRIC LITHIUM COBALT OXIDE AND METHOD FOR PREPARATION OF THE SAME
    14.
    发明公开
    STOICHIOMETRIC LITHIUM COBALT OXIDE AND METHOD FOR PREPARATION OF THE SAME 有权
    超声波清洗机

    公开(公告)号：EP1994587A1

    公开(公告)日：2008-11-26

    申请号：EP07715683.4

    申请日：2007-03-16

    申请人： LG Chem, Ltd.

    发明人： PAULSEN, Jens, M. ,  SHIN, Sun Sik ,  PARK, Hong-Kyu

    IPC分类号： H01M4/52 ,  H01M4/48 ,  H01M4/58

    CPC分类号： H01M4/525 ,  C01G51/42 ,  C01G51/50 ,  C01G53/50 ,  C01P2002/77 ,  C01P2004/03 ,  C01P2006/40 ,  H01M4/04 ,  H01M4/131 ,  H01M4/366 ,  H01M4/483 ,  H01M4/505 ,  H01M4/523 ,  H01M10/0525 ,  Y02E60/122 ,  Y02P70/54

    摘要： The present invention provides a LiCoO2-containing powder comprising LiCoO2 having a stoichiometric composition via heat treatment of a lithium cobalt oxide and a lithium buffer material to make equilibrium of a lithium chemical potential therebetween; a lithium buffer material which acts as a Li acceptor or a Li donor to remove or supplement Li-excess or Li-deficiency, coexisting with a stoichiometric lithium metal oxide; and a method for preparing a LiCoO2-containing powder. Further, provided is an electrode comprising the above-mentioned LiCoO2-containing powder as an active material, and a rechargeable battery comprising the same electrode. The present invention enables production of a LiCoO2electrode active material which has improved high-temperature storage properties and high-voltage cycling properties, and is robust in composition fluctuation in the production process. Therefore, the present invention provides advantages such as reduction of time and labor required for quality control and process management in the mass-production of the electrode active material, and decreased production costs of LiCoO2.

    摘要翻译： 含有LiCoO2的粉末。 以及含有LiCoO 2的粉末的制造方法，包括通过锂钴氧化物和锂缓冲材料的热处理而具有化学计量组成的LiCoO 2，以使其间具有锂化学势的平衡。 用作Li受体或Li给体以除去或补充Li-过量或Li-缺乏的锂缓冲材料，锂缓冲材料与化学计量的锂金属氧化物共存。 此外，电极包括含有LiCoO 2的粉末作为活性材料，并且可再充电电池包括电极。

    POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, MANUFACTURING METHOD THEREFOR, AND LITHIUM SECONDARY BATTERY COMPRISING SAME
    20.
    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。