Secondary battery
    1.
    发明授权

    公开(公告)号:US11728466B2

    公开(公告)日:2023-08-15

    申请号:US17512227

    申请日:2021-10-27

    申请人: LG Chem, Ltd.

    摘要: A secondary battery comprises an electrode assembly comprising radical units in which first and second electrodes are alternately laminated with a separator therebetween and a separation film surrounding the radical units to be repeatedly laminated, wherein the electrode assembly comprises a protection unit laminated on an outermost separation film disposed on the uppermost end or lowermost end of the separation film, the protection unit has a structure comprising a second protection electrode, a separator, and a first protection electrode which are successively laminated from the outermost separation film disposed on the uppermost end or lowermost end of the electrode assembly, the second protection electrode has a cross-sectional coating structure comprising a second collector and a second electrode active material portion coated with a second electrode active material on an inner surface of the second collector, and the inner surface is a surface facing a center of the electrode assembly.

    JELLY-ROLL TYPE ELECTRODE ASSEMBLY PATTERN-COATED WITH ACTIVE MATERIAL AND SECONDARY BATTERY INCLUDING THE SAME
    6.
    发明申请
    JELLY-ROLL TYPE ELECTRODE ASSEMBLY PATTERN-COATED WITH ACTIVE MATERIAL AND SECONDARY BATTERY INCLUDING THE SAME 有权
    带有活性材料的JELLY-ROLL TYPE ELECTRODE ASSEMBY PATTERN-COATED AND SECONDARY BATTERY INCLUDING THE SAME

    公开(公告)号:US20140004399A1

    公开(公告)日:2014-01-02

    申请号:US13966645

    申请日:2013-08-14

    申请人: LG Chem, Ltd.

    IPC分类号: H01M10/0587

    摘要: Provided is a jelly-roll type electrode assembly pattern-coated with active materials manufactured by winding and compressing a separator and an anode and a cathode arranged on both sides of the separator. The anode includes anode flat coated portion coated with an anode active material and anode curved uncoated portion not coated with the anode active material, which are alternately formed. The cathode includes a cathode flat coated portion coated with a cathode active material and a cathode curved uncoated portion not coated with the cathode active material, which are alternately formed.

    摘要翻译: 提供了一种胶卷式电极组件图案,其涂覆有通过缠绕和压缩分隔件和布置在隔板两侧的阳极和阴极制造的活性材料。 阳极包括阳极平坦涂覆部分,其涂覆有阳极活性材料和阳极弯曲的未涂覆有阳极活性材料的未涂覆部分,其交替地形成。 阴极包括涂覆有阴极活性材料的阴极平坦涂覆部分和未涂覆阴极活性材料的阴极弯曲未涂覆部分,其被交替地形成。

    Secondary battery
    7.
    发明授权

    公开(公告)号:US11177519B2

    公开(公告)日:2021-11-16

    申请号:US16332978

    申请日:2018-05-04

    申请人: LG Chem, Ltd.

    摘要: A secondary battery comprises an electrode assembly comprising radical units in which first and second electrodes are alternately laminated with a separator therebetween and a separation film surrounding the radical units to be repeatedly laminated, wherein the electrode assembly comprises a protection unit laminated on an outermost separation film disposed on the uppermost end or lowermost end of the separation film, the protection unit has a structure comprising a second protection electrode, a separator, and a first protection electrode which are successively laminated from the outermost separation film disposed on the uppermost end or lowermost end of the electrode assembly, the second protection electrode has a cross-sectional coating structure comprising a second collector and a second electrode active material portion coated with a second electrode active material on an inner surface of the second collector, and the inner surface is a surface facing a center of the electrode assembly.

    Electrode assembly
    8.
    发明授权

    公开(公告)号:US10665847B2

    公开(公告)日:2020-05-26

    申请号:US15741359

    申请日:2017-02-20

    申请人: LG CHEM, LTD.

    IPC分类号: H01M2/26 H01M2/16 H01M10/04

    摘要: The electrode assembly comprises a first electrode unit in which an electrode and a separator are alternately stacked and a second electrode unit in which an electrode and a separator are alternately stacked, the second electrode unit having a size less than that of the first electrode unit and being stacked on the first electrode unit, wherein a tab bonding body manufactured by connecting an electrode tab provided in the first electrode unit to an electrode tab provided in the second electrode unit is disposed within a range of a width of the second electrode unit, and a leading electrode tab to which an electrode lead is connected is disposed on a portion of the first electrode unit.

    Secondary Battery
    9.
    发明申请
    Secondary Battery 审中-公开

    公开(公告)号:US20190273224A1

    公开(公告)日:2019-09-05

    申请号:US16332978

    申请日:2018-05-04

    申请人: LG Chem, Ltd.

    摘要: A secondary battery comprises an electrode assembly comprising radical units in which first and second electrodes are alternately laminated with a separator therebetween and a separation film surrounding the radical units to be repeatedly laminated, wherein the electrode assembly comprises a protection unit laminated on an outermost separation film disposed on the uppermost end or lowermost end of the separation film, the protection unit has a structure comprising a second protection electrode, a separator, and a first protection electrode which are successively laminated from the outermost separation film disposed on the uppermost end or lowermost end of the electrode assembly, the second protection electrode has a cross-sectional coating structure comprising a second collector and a second electrode active material portion coated with a second electrode active material on an inner surface of the second collector, and the inner surface is a surface facing a center of the electrode assembly.