PRECURSOR FOR PREPARATION OF LITHIUM COMPOSITE TRANSITION METAL OXIDE, METHOD FOR PREPARING THE SAME AND LITHIUM COMPOSITE TRANSITION METAL OXIDE OBTAINED FROM THE SAME
    62.
    发明申请
    PRECURSOR FOR PREPARATION OF LITHIUM COMPOSITE TRANSITION METAL OXIDE, METHOD FOR PREPARING THE SAME AND LITHIUM COMPOSITE TRANSITION METAL OXIDE OBTAINED FROM THE SAME 审中-公开
    用于制备锂复合材料过渡金属氧化物的前体,其制备方法和从其获得的锂复合材料过渡金属氧化物

    公开(公告)号:US20160164087A1

    公开(公告)日:2016-06-09

    申请号:US14906488

    申请日:2014-08-18

    Applicant: LG CHEM, LTD.

    Abstract: Disclosed are a precursor for preparation of a lithium composite transition metal oxide, a method for preparing the same and a lithium composite transition metal oxide obtained from the same. More particularly, the transition metal precursor which has a composition represented by Formula 1 below and is prepared in an aqueous transition metal solution, mixed with a transition metal-containing salt, including an alkaline material, the method for preparing the same and the lithium composite transition metal oxide obtained from the same are disclosed. MnaMb(OH1-x)2-yAy   (1) wherein M is at least one selected form the group consisting of Ni, Ti, Co, Al, Cu, Fe, Mg, B, Cr, Zr, Zn and Period II transition metals; A is at least one selected form the group consisting of anions of PO4, BO3, CO3, F and NO3, and 0.5≦a≦1.0; 0≦b≦0.5; a+b=1; 0

    Abstract translation: 公开了锂复合过渡金属氧化物的制备前体,其制备方法以及由其制备的锂复合过渡金属氧化物。 更具体地说,具有下述式1所示的组成的过渡金属前体,其与含有过渡金属的盐(包括碱性物质)混合的过渡金属水溶液,其制备方法和锂复合物 公开了从其获得的过渡金属氧化物。 MnaMb(OH1-x)2-yAy(1)其中M是选自Ni,Ti,Co,Al,Cu,Fe,Mg,B,Cr,Zr,Zn和II族过渡金属中的至少一种 ; A是至少一种选自PO4,BO3,CO3,F和NO3的阴离子的组,以及0.5和nlE; a≦̸ 1.0; 0≦̸ b≦̸ 0.5; a + b = 1; 0

    STOICHIOMETRIC LITHIUM COBALT OXIDE AND METHOD FOR PREPARATION OF THE SAME
    64.
    发明申请
    STOICHIOMETRIC LITHIUM COBALT OXIDE AND METHOD FOR PREPARATION OF THE SAME 有权
    硅铝酸锂氧化物及其制备方法

    公开(公告)号:US20140353548A1

    公开(公告)日:2014-12-04

    申请号:US14463804

    申请日:2014-08-20

    Applicant: LG Chem, Ltd.

    Abstract: 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 LiCoO2 electrode 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.

    Abstract translation: 本发明提供一种含有LiCoO 2的粉末,其包含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,以在其间形成锂化学势的平衡; 用作Li受体或Li供体以除去或补充Li-过量或Li-缺乏的锂缓冲材料,与化学计量的锂金属氧化物共存; 以及制备含有LiCoO 2的粉末的方法。 此外,提供了包含上述含有LiCoO 2的粉末作为活性材料的电极和包含相同电极的可再充电电池。 本发明能够生产具有改善的高温储存性能和高电压循环性能的LiCoO 2电极活性材料,并且在生产过程中的组成波动中是稳定的。 因此,本发明提供了在电极活性物质的批量生产中减少质量控制和工艺管理所需的时间和劳动力以及降低LiCoO2的生产成本的优点。

    COMPOSITION FOR GEL POLYMER ELECTROLYTE AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME
    65.
    发明申请
    COMPOSITION FOR GEL POLYMER ELECTROLYTE AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME 有权
    用于凝胶聚合物电解质和锂二次电池的组合物,包括它们

    公开(公告)号:US20140220427A1

    公开(公告)日:2014-08-07

    申请号:US14248448

    申请日:2014-04-09

    Applicant: LG Chem, Ltd.

    Abstract: Provided are a composition for a gel polymer electrolyte including i) an electrolyte solution solvent, ii) an ionizable lithium salt, iii) a polymerization initiator, and iv) a monomer having a functional group bondable to metal ions, and a lithium secondary battery including the composition for a gel polymer electrolyte.In a case where the composition for a gel polymer electrolyte of the present invention is used in a lithium secondary battery, since the movement of metal ions dissolved from a cathode to an anode may be prevented or the precipitation of metal on the anode may be reduced, the lifetime of the battery may not only be improved but capacity characteristics of the battery may also be excellent even in the case in which the battery is charged at a high voltage as well as normal voltage

    Abstract translation: 提供一种凝胶聚合物电解质组合物,其包括i)电解质溶液,ii)可电离锂盐,iii)聚合引发剂,和iv)具有可与金属离子键合的官能团的单体,以及锂二次电池,包括 用于凝胶聚合物电解质的组合物。 在本发明的凝胶聚合物电解质组合物用于锂二次电池的情况下,由于可以防止从阴极溶解到阳极的金属离子的移动或金属在阳极上的沉淀可能降低 ,电池的寿命不仅可以改善,而且即使在电池在高电压以及正常电压下被充电的情况下,电池的容量特性也可以是优异的

    MATERIAL FOR LITHIUM SECONDARY BATTERY OF HIGH PERFORMANCE
    66.
    发明申请
    MATERIAL FOR LITHIUM SECONDARY BATTERY OF HIGH PERFORMANCE 有权
    锂二次电池性能优良的材料

    公开(公告)号:US20130196232A1

    公开(公告)日:2013-08-01

    申请号:US13798901

    申请日:2013-03-13

    Applicant: LG Chem, Ltd.

    Abstract: Provided is a lithium mixed transition metal oxide having a composition represented by Formula I of LixMyO2 (M, x and y are as defined in the specification) having mixed transition metal oxide layers (“MO layers”) comprising Ni ions and lithium ions, wherein lithium ions intercalate into and deintercalate from the MO layers and a portion of MO layer-derived Ni ions are inserted into intercalation/deintercalation layers of lithium ions (“reversible lithium layers”) thereby resulting in the interconnection between the MO layers. The lithium mixed transition metal oxide of the present invention has a stable layered structure and therefore exhibits improved stability of the crystal structure upon charge/discharge. In addition, a battery comprising such a cathode active material can exhibit a high capacity and a high cycle stability. Further, such a lithium mixed transition metal oxide is substantially free of water-soluble bases, and thereby can provide excellent storage stability, decreased gas evolution and consequently superior high-temperature stability with the feasibility of low-cost mass production.

    Abstract translation: 本发明提供具有由Ni x离子和锂离子组成的混合过渡金属氧化物层(“MO层”)的LixMyO2(M,x和y如说明书中所定义)的式I所示组成的锂混合过渡金属氧化物,其中 锂离子从MO层插入和脱嵌,并且将一部分MO层衍生的Ni离子插入到锂离子(“可逆锂层”)的嵌入/脱嵌层中,从而导致MO层之间的互连。 本发明的锂混合过渡金属氧化物具有稳定的层状结构,因此在充放电时显示出晶体结构的稳定性提高。 此外,包含这种阴极活性材料的电池可以表现出高容量和高循环稳定性。 此外,这种锂混合过渡金属氧化物基本上不含水溶性碱,从而可以提供优异的储存稳定性,降低的气体逸出性以及因此优异的高温稳定性以及低成本批量生产的可行性。

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