DOUBLE-SIDEDLY COATING A POROUS WEB WITH A DOPE USING A WEB POSITIONING ELEMENT

    公开(公告)号:US20240058835A1

    公开(公告)日:2024-02-22

    申请号:US18270015

    申请日:2021-12-30

    Inventor: Willy DOYEN

    CPC classification number: B05C9/04 B05C5/0254 B05C3/125 B05C11/025 B05C11/04

    Abstract: A coating apparatus for double-sidedly coating a porous web with a dope, includes: (i) a slot-die coating head comprising an upper lip, a lower lip and a slot between the upper lip and the lower lip, (ii) a counter element arranged opposite the lower lip across a reference plane, (iii) a slit defined between the lower lip and the counter element for passing a porous web therebetween, the slot opening up towards the slit, and (iv) a web positioning element. The web positioning element is the upper lip of the slot-die coating head. The upper lip protrudes up to the reference plane so that there is an offset between the upper lip and the lower lip, or a spacing structure on the counter element. The spacing structure protrudes up to the reference plane so that there is an offset between the spacing structure and the counter element.

    ELECTRODE PLATE ROLLING APPARATUS AND ELECTRODE PLATE ROLLING METHOD

    公开(公告)号:US20230411587A1

    公开(公告)日:2023-12-21

    申请号:US18234386

    申请日:2023-08-16

    CPC classification number: H01M4/0435 B05C11/025

    Abstract: This application discloses an electrode plate rolling apparatus and an electrode plate rolling method that are configured to roll an electrode plate. The electrode plate includes a coated region and an uncoated region. The electrode plate rolling apparatus includes a roller group, a heating part, and a cooling part. The heating part is configured to heat the electrode plate, and the cooling part is configured to cool the electrode plate. The heating part further includes an extension assembly, and the extension assembly can extend the uncoated region when the heating part heats the electrode plate. The electrode plate passes through the cooling part after passing through the heating part. The heating part and the cooling part are configured to reduce a difference between an extensibility parameter of the uncoated region and an extensibility parameter of the coated region.

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