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    Separator for Lithium Secondary Battery and Lithium Secondary Battery Including the Same
    4.
    发明公开
    Separator for Lithium Secondary Battery and Lithium Secondary Battery Including the Same 审中-公开

    公开(公告)号：US20230223659A1

    公开(公告)日：2023-07-13

    申请号：US18008801

    申请日：2022-01-25

    申请人： LG Chem, Ltd.

    发明人： Joo-Sung Lee ,  Bi-Oh Ryu ,  Kil-An Jung

    IPC分类号： H01M50/491 ,  H01M10/0525

    CPC分类号： H01M50/491 ,  H01M10/0525

    摘要： Provided is a separator having excellent safety and a lithium secondary battery including the same. The separator includes: a porous polymer substrate; and an organic/inorganic composite porous layer disposed on at least one surface of the porous polymer substrate and including inorganic particles and a binder polymer, wherein the inorganic particles have a BET specific surface area of 50-150 m2/g, the organic/inorganic composite porous layer has a thickness larger than the thickness of the porous polymer substrate, and the surface of the organic/inorganic composite porous layer has an arithmetic mean roughness of 100-500 nm.

    Separator for Electrochemical Device Comprising A Patterned Electrode Adhesive Layer and a Method for Manufacturing the Separator
    6.
    发明申请
    Separator for Electrochemical Device Comprising A Patterned Electrode Adhesive Layer and a Method for Manufacturing the Separator 有权

    公开(公告)号：US20210242538A1

    公开(公告)日：2021-08-05

    申请号：US17053996

    申请日：2019-06-12

    申请人： LG Chem, Ltd.

    发明人： Joo-Sung Lee ,  A-Young Lee

    IPC分类号： H01M50/46 ,  H01M50/403 ,  H01M50/463 ,  H01M50/414

    摘要： A separator for an electrochemical device is provided. The separator includes a porous polymer substrate, and an electrode adhesive layer formed on at least one surface of the porous polymer substrate, wherein the electrode adhesive layer includes a binder polymer and has at least two electrode adhesive layer units including at least two lines extending from a long side to a short side of the separator, and the units do not cross each other. Herein, a unit merely formed by lines extending from one long side to the other long side of the separator, or a unit merely formed by lines extending from one short side to the other short side of the separator is not included. The separator is effective for reducing a time required for impregnation of an electrode with an electrolyte, while providing excellent electrode-separator adhesion.

    Integrated electrode assembly and electrochemical device comprising same
    8.
    发明授权
    Integrated electrode assembly and electrochemical device comprising same 有权

    公开(公告)号：US10763492B2

    公开(公告)日：2020-09-01

    申请号：US15542341

    申请日：2016-02-19

    申请人： LG Chem, Ltd.

    发明人： Joo-Sung Lee ,  Sun-Mi Jin

    IPC分类号： H01M4/131 ,  H01M2/16 ,  H01M10/04 ,  H01M10/052 ,  H01M2/14 ,  H01M4/04 ,  H01M4/02

    摘要： The present disclosure relates to an integrated electrode assembly, wherein a positive electrode, a first binder polymer layer, an inorganic coating layer comprising a plurality of inorganic layers and a second binder polymer, a third binder polymer layer, and a negative electrode are sequentially stacked and combined, each configurative element forming the electrode assembly is stacked and combined with excellent adhesion, and the durability of the inorganic coating layer preventing the internal short circuit of the electrode is excellent, and thus a lithium secondary battery using the integrated electrode assembly according to the present disclosure may have excellent cycle characteristics.