POSITIVE ELECTRODE, ELECTRODE GROUP, SECONDARY BATTERY, AND BATTERY PACK

    公开(公告)号:EP4310935A1

    公开(公告)日:2024-01-24

    申请号:EP21931433.3

    申请日:2021-03-15

    摘要: According to one embodiment, a positive electrode is provided. The positive electrode includes a positive electrode current collector, a positive electrode active material-containing layer provided on the positive electrode current collector, and a porous layer provided on at least a part of the positive electrode active material-containing layer and containing inorganic particles. A thickness of the porous layer is 3.0 um or less. A ratio X/Y, between a mode diameter X in a log differential pore volume distribution curve obtained by mercury porosimetry with respect to the positive electrode active material-containing layer and the porous layer, and a mode diameter Y in a log differential pore volume distribution curve obtained by mercury porosimetry with respect to the positive electrode active material-containing layer, satisfies the following Equation 1: 1.0 X/Y 1.5

    ELECTROSPINNING APPARATUS
    3.
    发明公开

    公开(公告)号:EP3550059A1

    公开(公告)日:2019-10-09

    申请号:EP17847719.6

    申请日:2017-09-08

    IPC分类号: D01D5/04

    摘要: An electrospinning apparatus according to an embodiment is configured to deposit a fiber on a collector or a member. The electrospinning apparatus includes a first nozzle head provided on one side of the collector or the member, and a second nozzle head provided on the side opposite to the first nozzle head with the collector or the member interposed.

    SPINNING APPARATUS
    4.
    发明公开
    SPINNING APPARATUS 审中-公开

    公开(公告)号:EP3686324A1

    公开(公告)日:2020-07-29

    申请号:EP18859673.8

    申请日:2018-09-13

    IPC分类号: D01D5/04 D04H1/728

    摘要: According to one embodiment, a spinning apparatus includes a spinning head and a rotational brush. An organic material is filled up inside the spinning head, and the spinning head ejects the organic material on a surface of a base to form a sheet of the organic fiber on the surface of the base. The rotational brush includes a plurality of brush bristles and is rotated while the brush bristles are in contact with the sheet in the surface of the base. The rotational brush strips the organic fiber from a part of the sheet by the rotation.