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    Secondary battery
    2.
    发明授权
    Secondary battery 有权

    公开(公告)号：US09876233B2

    公开(公告)日：2018-01-23

    申请号：US14513112

    申请日：2014-10-13

    Applicant: SAMSUNG SDI CO., LTD.

    Inventor： Seungyeol Yoo ,  Jongseok Moon ,  Huijun Lee ,  Junyong Lee

    IPC: H01M4/70 ,  H01M2/26 ,  H01M10/0587

    CPC classification number: H01M4/70 ,  H01M2/26 ,  H01M10/0587

    Abstract: A secondary battery according to embodiments of the present invention can reduce or prevent an uncoated portion and the rest of an electrode assembly from being damaged when the uncoated portion and a collector plate are coupled to each other using laser welding. The secondary battery includes a case having an internal space, an electrode assembly accommodated in the case, the electrode assembly having a coated portion coated with an active material and an uncoated portion without the active material, and a collector plate including a first collector plate and a second collector plate coupled to the uncoated portion, wherein first protrusions of the first collector plate and second protrusions of the second collector plate are engaged with each other with the uncoated portion interposed therebetween, and a boundary surface between the first protrusions and the second protrusions is configured to deviate with respect to a direction in which the collector plate is coupled to the uncoated portion.

    SECONDARY BATTERY
    3.
    发明申请
    SECONDARY BATTERY 有权
    二次电池

    公开(公告)号：US20150214553A1

    公开(公告)日：2015-07-30

    申请号：US14513112

    申请日：2014-10-13

    Applicant: SAMSUNG SDI CO., LTD.

    Inventor： Seungyeol Yoo ,  Jongseok Moon ,  Huijun Lee ,  Junyong Lee

    IPC: H01M4/70

    CPC classification number: H01M4/70 ,  H01M2/26 ,  H01M10/0587

    Abstract: A secondary battery according to embodiments of the present invention can reduce or prevent an uncoated portion and the rest of an electrode assembly from being damaged when the uncoated portion and a collector plate are coupled to each other using laser welding. The secondary battery includes a case having an internal space, an electrode assembly accommodated in the case, the electrode assembly having a coated portion coated with an active material and an uncoated portion without the active material, and a collector plate including a first collector plate and a second collector plate coupled to the uncoated portion, wherein first protrusions of the first collector plate and second protrusions of the second collector plate are engaged with each other with the uncoated portion interposed therebetween, and a boundary surface between the first protrusions and the second protrusions is configured to deviate with respect to a direction in which the collector plate is coupled to the uncoated portion.

    Abstract translation: 根据本发明的实施例的二次电池可以减少或防止未涂覆部分和电极组件的其余部分在未涂覆部分和集电板彼此使用激光焊接而被损坏。 二次电池包括具有内部空间的壳体，容纳在壳体中的电极组件，电极组件具有涂覆有活性材料的涂覆部分和没有活性材料的未涂覆部分，以及集电板，其包括第一集电板和 耦合到未涂覆部分的第二集电板，其中所述第一集电板的第一突起和所述第二集电板的第二突起彼此接合，并且所述第一集电板的第二突起与所述第一突起和所述第二突起之间的边界面相互接合， 被配置为相对于集电板联接到未涂覆部分的方向偏离。

    Secondary battery and manufacturing method thereof
    7.
    发明授权
    Secondary battery and manufacturing method thereof 有权

    公开(公告)号：US09853294B2

    公开(公告)日：2017-12-26

    申请号：US14183311

    申请日：2014-02-18

    Applicant: Samsung SDI Co., Ltd.

    Inventor： Junyong Lee ,  Huijun Lee ,  Seungyeol Yoo

    IPC: H01M4/78 ,  B23K26/30 ,  H01M2/26

    CPC classification number: H01M4/78 ,  H01M2/266 ,  Y10T29/49108

    Abstract: A secondary battery includes an electrode assembly having a relatively large capacity due to reducing a width of an uncoated portion and increasing a width of a coated portion by improving welding strength through a combination of ultrasonic welding and laser welding, and a manufacturing method thereof. The manufacturing method of the secondary battery includes preparing at least one electrode assembly including an uncoated portion, provisionally welding the uncoated portion by ultrasonic welding, coupling a current collector having an elastic property to the provisionally welded uncoated portion, and welding the uncoated portion and the current collector by laser welding.

    SECONDARY BATTERY AND MANUFACTURING METHOD THEREOF
    8.
    发明申请
    SECONDARY BATTERY AND MANUFACTURING METHOD THEREOF 有权
    二次电池及其制造方法

    公开(公告)号：US20150111090A1

    公开(公告)日：2015-04-23

    申请号：US14183311

    申请日：2014-02-18

    Applicant: Samsung SDI Co., Ltd.

    Inventor： Junyong Lee ,  Huijun Lee ,  Seungyeol Yoo

    IPC: H01M4/78 ,  B23K26/30

    CPC classification number: H01M4/78 ,  H01M2/266 ,  Y10T29/49108

    Abstract: A secondary battery includes an electrode assembly having a relatively large capacity due to reducing a width of an uncoated portion and increasing a width of a coated portion by improving welding strength through a combination of ultrasonic welding and laser welding, and a manufacturing method thereof. The manufacturing method of the secondary battery includes preparing at least one electrode assembly including an uncoated portion, provisionally welding the uncoated portion by ultrasonic welding, coupling a current collector having an elastic property to the provisionally welded uncoated portion, and welding the uncoated portion and the current collector by laser welding.

    Abstract translation: 二次电池包括由于通过超声波焊接和激光焊接的组合改善焊接强度而减小未涂覆部分的宽度并增加涂覆部分的宽度而具有较大容量的电极组件及其制造方法。 二次电池的制造方法包括制备至少一个包括未涂覆部分的电极组件，通过超声波焊接临时焊接未涂覆部分，将具有弹性的集电器耦合到临时焊接的未涂覆部分，以及焊接未涂覆部分和 集电极通过激光焊接。

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