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13 条记录 (耗时 0.013 秒)

    SEPARATOR AND ELECTROCHEMICAL DEVICE COMPRISING SAME
    2.
    发明公开
    SEPARATOR AND ELECTROCHEMICAL DEVICE COMPRISING SAME 审中-公开

    公开(公告)号：EP4142036A1

    公开(公告)日：2023-03-01

    申请号：EP21856304.7

    申请日：2021-08-13

    申请人： LG Energy Solution, Ltd.

    发明人： LEE, So-Yeong ,  KIM, Ji-Eun ,  PARK, So-Jung ,  SUNG, Dong-Wook

    IPC分类号： H01M50/449 ,  H01M50/431 ,  H01M50/446 ,  H01M10/052 ,  H01G11/52

    摘要： Disclosed is a separator including: a porous polymer substrate provided with a core portion substrate having a plurality of pores, and skin portion substrates disposed on both surfaces of the core portion substrate and having a plurality of pores, wherein both the core portion substrate and the skin portion substrate include first inorganic particles, or only the core portion substrate includes first inorganic particles, and when both the core portion substrate and the skin portion substrate include the first inorganic particles, the core portion substrate includes the first inorganic particles at a higher weight percentage (wt%) as compared to the skin portion substrate; and a porous coating layer disposed on at least one surface of the porous polymer substrate, and including a plurality of second inorganic particles and a binder polymer disposed partially or totally on the surfaces of the second inorganic particles so that the second inorganic particles may be interconnected and fixed, wherein the first inorganic particles have a higher Mohs hardness than the Mohs hardness of the second inorganic particles. An electrochemical device including the separator is also disclosed.

    SEPARATOR FOR ELECTROCHEMICAL DEVICE, AND ELECTROCHEMICAL DEVICE COMPRISING SAME
    4.
    发明公开
    SEPARATOR FOR ELECTROCHEMICAL DEVICE, AND ELECTROCHEMICAL DEVICE COMPRISING SAME 审中-公开

    公开(公告)号：EP4050721A1

    公开(公告)日：2022-08-31

    申请号：EP20889718.1

    申请日：2020-11-17

    申请人： LG Energy Solution, Ltd.

    发明人： SUNG, Dong-Wook ,  KWON, Hye-Jin ,  SHIN, Sun-Yong ,  LEE, Jong-Yoon

    IPC分类号： H01M50/409 ,  H01M50/40 ,  H01M10/052

    摘要： Disclosed is a separator for an electrochemical device having a low content of secondary particles formed by aggregation of an inorganic particles in the inorganic coating layer. Particularly, the separator has a low content of secondary particles protruding from the separator surface to a predetermined height or more. Since the inorganic particles are not aggregated but are distributed homogeneously in the inorganic coating layer, the separator allows uniform dispersion of pressure over the whole surface of the separator, when it is applied to a battery and pressure is generated in the battery due to the charge/discharge of the battery. In this manner, it is possible to minimize deformation of the separator. Meanwhile, when using a porous film made of a polymer material as a separator substrate, there is a low tendency for intensive application of pressure from the secondary particles to a local site of the separator substrate, and thus the separator substrate is less damaged and a possibility of short-circuit generation is reduced.

    METHOD AND APPARATUS FOR MANUFACTURING UNIT CELL
    5.
    发明公开
    METHOD AND APPARATUS FOR MANUFACTURING UNIT CELL 审中-公开

    公开(公告)号：EP4243136A1

    公开(公告)日：2023-09-13

    申请号：EP22861666.0

    申请日：2022-08-22

    申请人： LG Energy Solution, Ltd.

    发明人： BAE, Won-Sik ,  SUNG, Dong-Wook ,  PARK, So-Jung ,  LEE, Jong-Yoon ,  JEONG, So-Mi

    IPC分类号： H01M10/04 ,  B23K26/382 ,  B26D7/08 ,  B26F1/14 ,  B26D1/04

    摘要： The present disclosure relates to a method and apparatus for manufacturing unit cells. The method for manufacturing unit cells includes the steps of: A) preparing a pre-cell including a first separator sheet and a plurality of first electrodes disposed on the first separator sheet while being spaced apart from one another; B) forming a cutting guide line including a plurality of though-holes spaced apart from one another on the pre-cell; and C) cutting the pre-cell along the cutting guide line to form a plurality of unit cells. In addition, the apparatus for manufacturing unit cells includes: a hole-forming unit configured to form a cutting guide line including a plurality of though-holes spaced apart from one another, on a pre-cell including a separator sheet and electrodes disposed on the separator sheet; and a cutting unit configured to cut the pre-cell along the cutting guide line to form a plurality of unit cells.

    SEPARATOR AND ELECTROCHEMICAL DEVICE COMPRISING SAME
    8.
    发明公开
    SEPARATOR AND ELECTROCHEMICAL DEVICE COMPRISING SAME 审中-公开

    公开(公告)号：EP4277005A1

    公开(公告)日：2023-11-15

    申请号：EP22881391.1

    申请日：2022-10-14

    申请人： LG Energy Solution, Ltd.

    发明人： KA, Kyung-Ryun ,  KIM, Min-Ji ,  LEE, Seung-Hyun ,  KIM, Hye-Won ,  SUNG, Dong-Wook

    IPC分类号： H01M50/449 ,  H01M50/446 ,  H01M50/403 ,  H01M10/052 ,  H01G11/52

    摘要： Disclosed are a separator and an electrochemical device comprising same, the separator comprising: a porous polymer substrate having a plurality of pores; a first porous coating layer disposed on one surface of the porous polymer substrate and containing a plurality of first inorganic particles and first binder particles disposed on a part or all of the surface of the first inorganic particles to connect and fix the first inorganic particles; and a second porous coating layer disposed on the other surface of the porous polymer substrate and containing a plurality of second inorganic particles and second binder particles disposed on a part or all of the surface of the second inorganic particles to connect and fix the second inorganic particles, wherein the average diameter of the second binder particles is at least 10-fold larger than the average particle diameter of the first binder particles.