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2 条记录 (耗时 0.007 秒)

    SECONDARY BATTERY
    1.
    发明公开
    SECONDARY BATTERY 审中-公开

    公开(公告)号：EP3503279A1

    公开(公告)日：2019-06-26

    申请号：EP18828206.5

    申请日：2018-05-04

    申请人： LG Chem, Ltd.

    发明人： YUN, Su Hyun ,  KANG, Kyoung Won ,  KIM, Ki Woong ,  OH, Jung Shik

    IPC分类号： H01M10/04 ,  H01M10/0583 ,  H01M10/42 ,  H01M4/66 ,  H01M2/02

    摘要： The present invention relates to a secondary battery. The secondary battery comprises an electrode assembly comprising a plurality of radical units in which a first electrode and a second electrode are alternately laminated with a separator therebetween and a separation film surrounding the plurality of 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 a second protection electrode, a separator, a first protection electrode 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.