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    Cathode active material for lithium secondary battery and lithium secondary battery including the same
    2.
    发明授权
    Cathode active material for lithium secondary battery and lithium secondary battery including the same 有权
    用于锂二次电池的阴极活性材料和包括其的锂二次电池

    公开(公告)号：US09595710B2

    公开(公告)日：2017-03-14

    申请号：US14494714

    申请日：2014-09-24

    申请人： LG Chem, Ltd.

    发明人： Hyeokmoo Lee ,  Song Taek Oh ,  Su Rim Lee ,  JungSeok Choi ,  Ji Hye Park

    IPC分类号： H01M4/36 ,  H01M4/505 ,  H01M4/525 ,  H01M4/131

    CPC分类号： H01M4/364 ,  H01M4/131 ,  H01M4/505 ,  H01M4/525 ,  Y02E60/122

    摘要： Disclosed are a cathode active material for lithium secondary batteries and a lithium secondary battery including the same and, more particularly, the present invention relates to a cathode active material for lithium secondary batteries that includes a mixture of an overlithiated transition metal oxide represented by Formula 1 below and a lithium composite transition metal oxide represented by Formula 2 below: Li1+aNibMncCo1-(a+b+c+d)MdO2-sAs  (1) LiNixMnyCo1-(x+y+z)M′zO2-tA′t  (2) wherein 0.1≦a≦0.2, 0.1≦b≦0.4, 0.3≦c≦0.7, 0≦d≦0.1, 0.5≦x≦0.8, 0.1≦y≦0.4, 0≦z≦0.1, 0≦s

    摘要翻译： 公开了一种锂二次电池用正极活性物质和包含该二次电池的锂二次电池，更具体地说，本发明涉及一种锂二次电池用正极活性物质，其包含由式1表示的重叠过渡金属氧化物 Li1 + aNibMncCo1-（a + b + c + d）MdO2-sAs（1）LiNixMnyCo1-（x + y + z）M'zO2-tA't（1）表示的锂复合过渡金属氧化物 2）其中0.1和nlE; a＆nlE; 0.2,0.1和nlE; b＆nlE; 0.4,0.3＆amp; nlE; c＆nlE; 0.7,0和nlE; d＆nlE; 0.1,0.5＆amp; nlE; x和nlE; 0.8,0.1＆ 0＆nlE; s＆nlE; 0.2和0＆nlE; t＆nlE; 0.2; M和M'各自独立地为至少一种二价或三价金属; A和A'各自独立地为至少一个一价或二价阴离子。

    Electrode assembly and method for manufacturing the same
    4.
    发明授权
    Electrode assembly and method for manufacturing the same 有权

    公开(公告)号：US11552376B2

    公开(公告)日：2023-01-10

    申请号：US16646273

    申请日：2019-07-11

    申请人： LG Chem, Ltd.

    发明人： Soon Hyung Choi ,  Su Rim Lee ,  Seok Koo Kim

    IPC分类号： H01M50/54 ,  H01M10/0585 ,  H01M50/531 ,  H01M50/543 ,  H01M50/548 ,  H01M50/553 ,  H01M50/536

    摘要： The present invention provides a single electrode assembly, in which a plurality of negative electrodes and positive electrodes are stacked alternately and repeatedly, and separators are disposed between the plurality of negative electrodes and positive electrodes, the electrode assembly including: a negative electrode tab part formed on one end of the electrode assembly and extending from the plurality of negative electrodes; a positive electrode bus bar spaced apart from the negative electrode tab part on the one end of the electrode assembly and electrically connecting the plurality of the positive electrodes; a positive electrode tab part formed on the other end of the electrode assembly opposite to the one end and extending from the plurality of positive electrodes; and a negative electrode bus bar spaced apart from the positive electrode tab part on the other end of the electrode assembly and electrically connecting the plurality of the negative electrodes.

    Secondary battery
    5.
    发明授权
    Secondary battery 有权

    公开(公告)号：US10741881B2

    公开(公告)日：2020-08-11

    申请号：US16078436

    申请日：2017-09-18

    申请人： LG Chem, Ltd.

    发明人： Soon Hyung Choi ,  Su Rim Lee ,  Song Taek Oh

    IPC分类号： H01M10/42 ,  H01M10/0525 ,  H01M2/02 ,  H01M2/32

    摘要： The secondary battery includes a case in which a positive electrode lead and a negative electrode lead are provided, wherein the case includes an external layer exposed to the outside, an insulation layer disposed in the case and insulated, a conductive layer stacked between the external layer and the insulation layer, made of a conductive material, and having one side coming into contact with the positive electrode lead and the other side coming into contact with the negative electrode lead, and a safety member disposed at a center of the conductive layer to prevent electricity from flowing through the conductive layer at a predetermined temperature or less and melted at the predetermined temperature or more to allow the electricity to flow through the conductive layer.

    CATHODE ACTIVE MATERIAL FOR HIGH VOLTAGE LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME
    7.
    发明申请
    CATHODE ACTIVE MATERIAL FOR HIGH VOLTAGE LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME 有权
    用于高电压锂二次电池的阴极活性材料和包括其的锂二次电池

    公开(公告)号：US20150090925A1

    公开(公告)日：2015-04-02

    申请号：US14495015

    申请日：2014-09-24

    申请人： LG Chem, Ltd.

    发明人： Hyeokmoo Lee ,  Jae Hyun Lee ,  Su Rim Lee ,  Song Taek Oh ,  JungSeok Choi ,  Ji Hye Park

    IPC分类号： H01M4/131 ,  H01M4/505 ,  H01M4/525 ,  H01M4/1315

    CPC分类号： H01M4/131 ,  H01M4/1315 ,  H01M4/505 ,  H01M4/525 ,  H01M2004/028

    摘要： Disclosed are a cathode active material for high voltage lithium secondary batteries and a lithium secondary battery including the same and, more particularly, the present invention relates to a cathode active material for lithium secondary batteries that includes a lithium transition metal oxide having a lithium molar fraction of greater than 1, containing a relative excess of nickel, and having a composition represented by Formula 1 below, wherein the lithium transition metal oxide has a Li2MnO3-like structure phase: Li1+aNibCocMn1−(a+b+c+d)MdO2-tAt   (1) wherein 0.05≦a≦0.2, 0.4≦b≦0.7, 0.1≦c≦0.4, 0≦d≦0.1, and 0≦t

    摘要翻译： 公开了一种用于高压锂二次电池的正极活性材料和包含该二次电池的锂二次电池，更具体地说，本发明涉及一种锂二次电池用正极活性物质，其包含具有锂摩尔分数的锂过渡金属氧化物 大于1，含有相对过量的镍，并且具有下述式1所示的组成，其中锂过渡金属氧化物具有Li 2 MnO 3样结构相：Li1 + aNibCocMn1-（a + b + c + d）MdO2 -tAt（1）其中0.05＆lt; 1; a＆nlE; 0.2,0.4＆amp; nlE; b＆nlE; 0.7,0.1和nlE; c＆nlE; 0.4,0＆amp; nlE; d＆nlE; 0.1,0和nlE; t <0.2; M是至少一种二价或三价金属; 并且A是至少一个一价或二价阴离子。

    Electrode Assembly and Method for Manufacturing the Same
    9.
    发明申请
    Electrode Assembly and Method for Manufacturing the Same 审中-公开

    公开(公告)号：US20200287196A1

    公开(公告)日：2020-09-10

    申请号：US16646273

    申请日：2019-07-11

    申请人： LG Chem, Ltd.

    发明人： Soon Hyung Choi ,  Su Rim Lee ,  Seok Koo Kim

    IPC分类号： H01M2/26 ,  H01M10/0585

    摘要： The present invention provides a single electrode assembly, in which a plurality of negative electrodes and positive electrodes are stacked alternately and repeatedly, and separators are disposed between the plurality of negative electrodes and positive electrodes, the electrode assembly including: a negative electrode tab part formed on one end of the electrode assembly and extending from the plurality of negative electrodes; a positive electrode bus bar spaced apart from the negative electrode tab part on the one end of the electrode assembly and electrically connecting the plurality of the positive electrodes; a positive electrode tab part formed on the other end of the electrode assembly opposite to the one end and extending from the plurality of positive electrodes; and a negative electrode bus bar spaced apart from the positive electrode tab part on the other end of the electrode assembly and electrically connecting the plurality of the negative electrodes.

    MIXED CATHODE ACTIVE MATERIAL HAVING IMPROVED POWER CHARACTERISTICS AND SAFETY, AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME
    10.
    发明申请
    MIXED CATHODE ACTIVE MATERIAL HAVING IMPROVED POWER CHARACTERISTICS AND SAFETY, AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME 有权
    具有改进的功率特性和安全性的混合阴极活性材料和包括其的锂二次电池

    公开(公告)号：US20140291588A1

    公开(公告)日：2014-10-02

    申请号：US14307606

    申请日：2014-06-18

    申请人： LG Chem, Ltd.

    发明人： Song Taek Oh ,  Sang Uck Lee ,  Su Rim Lee ,  Geun Chang Chung ,  Jae Kook Kim ,  Jin Sub Lim

    IPC分类号： H01M4/505 ,  H01M4/58 ,  H01M4/525 ,  H01M4/131 ,  H01M10/052

    CPC分类号： H01M4/505 ,  H01M4/131 ,  H01M4/364 ,  H01M4/525 ,  H01M4/5825 ,  H01M4/625 ,  H01M10/052

    摘要： Provided are a mixed cathode active material having improved power characteristics and safety, and a lithium secondary battery including the same. More particularly, the present invention relates to a mixed cathode active material which may assist power in a low SOC range to widen an available state of charge (SOC) range and may simultaneously provide improved safety by blending substituted LFP, in which operating voltage is adjusted by substituting a portion of iron (Fe) with other elements such as titanium (Ti), in order to prevent a rapid increase in resistance of manganese (Mn)-rich having high capacity but low operating voltage in a low SOC range (e.g., a SOC range of 10% to 40%), and a lithium secondary battery including the mixed cathode active material.

    摘要翻译： 提供了具有改善的功率特性和安全性的混合阴极活性材料，以及包含该混合阴极活性材料的锂二次电池。 更具体地说，本发明涉及一种混合阴极活性物质，其可以辅助低SOC范围内的功率以扩大可用的充电状态（SOC）范围，并且可以通过混合取代的LFP同时提供改进的安全性，其中调整工作电压 通过用其他元素如钛（Ti）代替一部分铁（Fe），以防止在低SOC范围内具有高容量但低工作电压的锰（Mn）富集性的电阻快速增加（例如， SOC范围为10％〜40％）和包含该混合阴极活性物质的锂二次电池。