Electrode unit and method for manufacturing the same

    公开(公告)号:US10971716B2

    公开(公告)日:2021-04-06

    申请号:US16066538

    申请日:2017-08-08

    Applicant: LG Chem, Ltd.

    Abstract: Provided are an electrode unit and a method for manufacturing the electrode unit. According to the present invention, after the electrode unit is manufactured by using heat, bending of the electrode unit occurring by cooling the electrode unit may be eliminated or minimized. To achieve the aforementioned object, in the method for manufacturing the electrode unit according to an embodiment of the present invention, stress applied to the inside of each of the positive electrode collector and the negative electrode collector is calculated to reflect the calculated results, thereby selecting the positive electrode collector and the negative electrode collector.

    Lamination apparatus for secondary battery

    公开(公告)号:US11251469B2

    公开(公告)日:2022-02-15

    申请号:US16348297

    申请日:2018-03-27

    Applicant: LG Chem, Ltd.

    Abstract: A lamination apparatus for a secondary battery comprises a roller part comprising a separator supply roller that supplies a separator sheet and an electrode supply roller that supplies an electrode sheet, a cutting part that cuts the electrode sheet supplied by the electrode supply roller to manufacture a plurality of electrode plates, a first transfer part that transfers the electrode plates cut by the cutting part at a same interval, an inspection part that inspects whether the electrode plates transferred by the first transfer part are defective, a second transfer part that transfers a normal electrode plate, which is determined as the normal electrode plate by the inspection part, among the electrode plates, and a lamination part that thermally bonds the normal electrode plate transferred by the second transfer part to the separator sheet supplied by the separator supply roller.

    Apparatus and method for manufacturing secondary battery

    公开(公告)号:US11978861B2

    公开(公告)日:2024-05-07

    申请号:US16619751

    申请日:2019-02-18

    Applicant: LG CHEM, LTD.

    CPC classification number: H01M10/0585 G01B11/26 H01M10/04 H01M10/0404

    Abstract: An apparatus for manufacturing the secondary battery includes a first measurement part photographing unit cells, which are continuously transferred, to measure a position of a first electrode having a relatively large size of the first electrode and a second electrode, which are provided in the unit cells and have polarities opposite to each other, from an image of each of the photographed unit cells; and a first arrangement part disposing the unit cell passing through the first measurement part at a preset position of the separation sheet to adjust an interval between the unit cells disposed on the separation sheet on the basis of the position of the first electrode, which is measured by the first measurement part.

    Notching apparatus and method for secondary battery

    公开(公告)号:US11179862B2

    公开(公告)日:2021-11-23

    申请号:US16629866

    申请日:2019-04-01

    Applicant: LG CHEM, LTD.

    Abstract: Discussed is a notching apparatus for a secondary battery that includes: a lower mechanism comprising a die and a die holder to which the die is fixed, the die engaging an electrode provided with a coating portion and a non-coating portion; a stripper including a first stripper pressing the coating portion and a pair of second strippers pressing and fixing the non-coating portion; an upper mechanism including a punch provided between the pair of second strippers and provided with a cutting blade cutting the non-coating portion disposed between the pair of second strippers and a punch holder allowing the punch to move in a direction of the lower mechanism; and a pressing member pressing the non-coating portion disposed between the pair of second strippers to increase in tension force when the non-coating portion is cut by the punch.

    LAMINATION APPARATUS FOR SECONDARY BATTERY
    5.
    发明申请

    公开(公告)号:US20200235433A1

    公开(公告)日:2020-07-23

    申请号:US16348297

    申请日:2018-03-27

    Applicant: LG Chem, Ltd.

    Abstract: A lamination apparatus for a secondary battery comprises a roller part comprising a separator supply roller that supplies a separator sheet and an electrode supply roller that supplies an electrode sheet, a cutting part that cuts the electrode sheet supplied by the electrode supply roller to manufacture a plurality of electrode plates, a first transfer part that transfers the electrode plates cut by the cutting part at a same interval, an inspection part that inspects whether the electrode plates transferred by the first transfer part are defective, a second transfer part that transfers a normal electrode plate, which is determined as the normal electrode plate by the inspection part, among the electrode plates, and a lamination part that thermally bonds the normal electrode plate transferred by the second transfer part to the separator sheet supplied by the separator supply roller.

    ELECTRODE UNIT AND METHOD FOR MANUFACTURING THE SAME

    公开(公告)号:US20190386289A1

    公开(公告)日:2019-12-19

    申请号:US16066538

    申请日:2017-08-08

    Applicant: LG Chem, Ltd.

    Abstract: Provided are an electrode unit and a method for manufacturing the electrode unit. According to the present invention, after the electrode unit is manufactured by using heat, bending of the electrode unit occurring by cooling the electrode unit may be eliminated or minimized. To achieve the aforementioned object, in the method for manufacturing the electrode unit according to an embodiment of the present invention, stress applied to the inside of each of the positive electrode collector and the negative electrode collector is calculated to reflect the calculated results, thereby selecting the positive electrode collector and the negative electrode collector.

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