ELECTRODE ASSEMBLY AND SECONDARY BATTERY COMPRISING THE SAME

    公开(公告)号:US20190252732A1

    公开(公告)日:2019-08-15

    申请号:US16275146

    申请日:2019-02-13

    摘要: An electrode assembly and a secondary battery are provided. In an exemplary embodiment, an electrode assembly includes: a first electrode plate having a first electrode tab attached thereto; a second electrode plate having at least one second electrode tab attached thereto; and a separator between the first electrode plate and the second electrode plate, the electrode assembly wound in a state in which the first electrode plate, the separator, and the second electrode plate are stacked, and the first electrode plate includes coating portions formed by coating an active material on first and second surfaces thereof, and a half-coating portion formed by coating the active material on only one of the first and second surfaces at a region corresponding to a leading edge, on the basis of a winding direction, where an active material of the second electrode plate begins.

    SECONDARY BATTERY
    3.
    发明申请
    SECONDARY BATTERY 审中-公开

    公开(公告)号:US20190123313A1

    公开(公告)日:2019-04-25

    申请号:US16221959

    申请日:2018-12-17

    摘要: The secondary battery of the present invention includes: a top cover, a first electrode terminal, a second electrode terminal, an electrode-tab pad-plate, an electrode assembly, a first electrode-tab and a second electrode-tab; the first and second electrode terminal are arranged on the top cover, the electrode-tab pad-plate is a strip-plate shaped structure, and is located between the top cover and electrode assembly, the first electrode-tab includes a connecting part, a folding part and a welding part, the connecting part is beneath the electrode tab pad plate, the welding part is above the electrode tab pad plate, and the connecting part is connected with the electrode assembly, the welding part is connected with the first electrode terminal, the folding part is connected with the connecting part and welding part bypassing the electrode-tab pad-plate; the second electrode terminal is connected with the electrode assembly through the second electrode-tab.

    ELECTRIC VEHICLE BATTERY CURRENT COLLECTOR
    4.
    发明申请

    公开(公告)号:US20190081308A1

    公开(公告)日:2019-03-14

    申请号:US16118359

    申请日:2018-08-30

    申请人: SF Motors, Inc.

    摘要: Systems and methods for a battery pack to power an electric vehicle are provided. The battery pack can include a plurality of battery modules having a plurality of battery blocks. The battery blocks can include a plurality of cylindrical battery cells. A first current collector can include a conductive layer to couple the first current collector with positive terminals of the plurality of cylindrical battery cells. A second current collector can include a conductive layer to couple the second current collector with negative terminals of the plurality of cylindrical battery cells. The first current collector, second current collector, and an isolation layer can include a plurality of apertures to expose the positive terminals of the plurality of cylindrical battery cells. The positive terminals can extend through the plurality of apertures to couple with the conductive layer of the first current collector.

    ELECTRODE ASSEMBLY AND SECONDARY BATTERY INCLUDING THE SAME

    公开(公告)号:US20180241024A1

    公开(公告)日:2018-08-23

    申请号:US15955976

    申请日:2018-04-18

    摘要: An electrode assembly includes an electrode jelly-roll, which includes a winding including a first electrode plate, a second electrode plate, and a separator disposed between the first and second electrode plates; an outer surface parallel to a winding axis of the prismatic electrode jelly-roll, side surfaces perpendicular to the winding axis; a first electrode tab, which is electrically connected to the first electrode plate and extends in a winding axis direction of the prismatic electrode jelly-roll; a second electrode tab, which is electrically connected to the second electrode plate and extends in a winding axis direction of the electrode jelly-roll, wherein an end portion of at least one of the first electrode tab and the second electrode tab is bent in a direction opposite to the direction in which the corresponding electrode tab extends and faces an outer surface of the prismatic electrode jelly-roll.