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    Method of preparing secondary battery including high capacity electrode
    3.
    发明授权
    Method of preparing secondary battery including high capacity electrode 有权

    公开(公告)号：US10818907B2

    公开(公告)日：2020-10-27

    申请号：US15770699

    申请日：2017-09-01

    Applicant: LG CHEM, LTD.

    Inventor： Ji Hee Ahn ,  Eun Ju Lee ,  Myung Ki Lee ,  Joo Yong Song ,  Hee Seok Jeong

    IPC: H01M4/04 ,  H01M4/139 ,  H01M10/0525

    Abstract: A method of preparing an electrode for a secondary battery including: (a) a process of partially coating an electrode slurry containing an electrode mixture and a solvent on an electrode sheet so that coated portions are positioned with an uncoated portion interposed therebetween; (b) a process of drying the coated portions to remove the solvent; and (c) a process of rolling the dried coated portions, wherein a thickness of the coated portion is decreased and the electrode mixture moves to the uncoated portions, resulting in the coated portions disappearing, in the process (c).

    Electrode coating apparatus
    7.
    发明授权
    Electrode coating apparatus 有权

    公开(公告)号：US11024834B2

    公开(公告)日：2021-06-01

    申请号：US15771907

    申请日：2017-09-04

    Applicant: LG CHEM, LTD.

    Inventor： Hee Seok Jeong ,  Myung Ki Lee ,  Jooyong Song ,  Ji Hee Ahn

    IPC: B05C5/00 ,  H01M4/04 ,  H01M10/04 ,  B05C11/10 ,  H01M4/88

    Abstract: The present invention relates to an electrode coating apparatus that is capable of adjusting a temperature of electrode slurry. Also, the electrode coating apparatus for applying electrode slurry to an electrode collector includes a storage part storing the electrode slurry, a discharge part discharging the electrode slurry stored in the storage part to the electrode collector, and a heating part heating the discharge part.

    Lithium ion secondary battery
    8.
    发明授权
    Lithium ion secondary battery 有权

    公开(公告)号：US10991973B2

    公开(公告)日：2021-04-27

    申请号：US16304450

    申请日：2017-12-21

    Applicant: LG CHEM, LTD.

    Inventor： Myung Ki Lee ,  Jooyong Song ,  Hee Seok Jeong ,  Ji Hee Ahn

    IPC: H01M10/0525 ,  H01M10/0585 ,  H01M4/36 ,  H01M2/20 ,  H01M4/02 ,  H01M2/26

    Abstract: A lithium ion secondary battery including a plurality of electrode laminates, each electrode laminate including a positive electrode, a separator, and a negative electrode being alternatively laminated, each positive electrode and negative electrode having respective positive and negative electrode tabs protruding from a respective line segment, the positive electrode tabs of adjacent electrode laminates face each other and are connected to each other to provide a positive electrode tab bundle and the negative electrode tabs of the adjacent electrode laminates face each other and are connected to each other to provide a negative electrode tab bundle.

    Secondary battery electrode manufacturing device including electrode mixture layer forming mold
    9.
    发明授权
    Secondary battery electrode manufacturing device including electrode mixture layer forming mold 有权

    公开(公告)号：US10964969B2

    公开(公告)日：2021-03-30

    申请号：US15737980

    申请日：2016-07-21

    Applicant: LG Chem, Ltd.

    Inventor： Myung Ki Lee

    IPC: H01M10/04 ,  H01M4/04 ,  H01M10/052 ,  H01M4/13 ,  H01M4/62

    Abstract: Disclosed herein is a secondary battery electrode manufacturing device including a slurry supply unit for supplying a secondary battery electrode mixture slurry, an electrode mixture layer forming mold configured to have a hollow structure having a first open surface and a second open surface, the first open surface and the second open surface being opposite each other, the electrode mixture slurry supplied from the slurry supply unit being injected into a hollow region of the electrode mixture layer forming mold, a drying unit for drying the electrode mixture slurry injected into the hollow region of the electrode mixture layer forming mold, a press for pressing the dried electrode mixture slurry to form an electrode mixture layer sheet, and a mold support unit for supporting the electrode mixture layer forming mold in the state in which the top surface of the mold support unit faces the first open surface of the electrode mixture layer forming mold.

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