Electrode Assembly Manufacturing Apparatus Including Ultrasonic Cutter and Method Using the Same

    公开(公告)号:US20230330885A1

    公开(公告)日:2023-10-19

    申请号:US18005015

    申请日:2021-09-13

    IPC分类号: H01M10/04 B26D7/08

    摘要: An electrode assembly manufacturing apparatus includes an electrode sheet supply unit for supplying an electrode sheet on which electrode mixture coating and non-coating portions are formed, a cutting unit at the rear of the supply unit for forming an electrode tab at the electrode sheet, and a lamination unit at the rear of the supply unit and configured to laminate positive and negative electrodes stacked with a separator between them. A cutting unit die supports the electrode sheet and an ultrasonic cutter spaced from the die forms the tab. A cutting line of a cutting edge of the cutter corresponds to a periphery of a unit electrode in a tab forming direction. The cutting and lamination units are on the same line in a continuous process to reduce a necessary space for electrode assembly manufacture and prevent electrode sheet foil deformation and electrode mixture layer damage in the cut section.

    Cell Preparation Apparatus and Method
    7.
    发明公开

    公开(公告)号:US20230142362A1

    公开(公告)日:2023-05-11

    申请号:US17912324

    申请日:2021-03-25

    IPC分类号: H01M10/04 B65H35/00

    CPC分类号: H01M10/0404 B65H35/0006

    摘要: An apparatus for preparing a cell is provided. The apparatus includes an electrode reel from which an electrode sheet is unwound, wherein the electrode sheet is configured to form a plurality of electrodes, a separator reel from which a separator sheet is unwound, wherein the separator sheet is configured to stack with the electrode while covering the electrode by being folded when the electrode is stably placed, a table having an upper surface on which the electrode and the separator sheet are stably placed, and a nozzle configured to apply an adhesive to at least a portion of a region of the separator sheet stably placed on the table.

    Unit Cell Preparation Apparatus and Method
    8.
    发明公开

    公开(公告)号:US20230369630A1

    公开(公告)日:2023-11-16

    申请号:US17913044

    申请日:2021-03-25

    IPC分类号: H01M10/04 H01M50/46

    CPC分类号: H01M10/0404 H01M50/461

    摘要: An apparatus for preparing a unit cell is provided. The apparatus includes a center electrode reel from which a center electrode sheet is unwound, wherein the center electrode sheet is configured to form a plurality of center electrodes, separator reels from which separator sheets to be stacked with the center electrodes are unwound, a laminator configured to laminate a stack which is formed by stacking the plurality of center electrodes with the separator sheets while the plurality of center electrodes are spaced apart from each other and disposed in a row in a longitudinal direction of the separator sheets, a first nozzle configured to apply an adhesive to an upper surface of the separator sheet disposed on an uppermost layer of the laminated stack, and an upper electrode reel from which an upper electrode sheet is unwound.

    Secondary Battery Sealing Process and Secondary Battery Manufacturing Method Comprising the Same

    公开(公告)号:US20230173606A1

    公开(公告)日:2023-06-08

    申请号:US17924235

    申请日:2021-08-11

    IPC分类号: B23K20/10 H01M50/183

    CPC分类号: B23K20/10 H01M50/183

    摘要: The present invention provides a sealing process for a secondary battery of the present invention, which thermally fuses and seals a sealing portion that extends along an edge surface of a battery case, the sealing process comprising: an arrangement operation of disposing the sealing portion of the battery case between an anvil and a horn; a first region-fixing operation of pressing and fixing a first region of the sealing portion through the anvil and the horn; and a first region-primary sealing operation of applying an ultrasonic wave to the first region of the sealing portion through the horn at a set frequency and a set amplitude for a set time, thereby thermally fusing the first region of the sealing portion.