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    NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, AND METHOD FOR MANUFACTURING POSITIVE ELECTRODE PLATE USED THEREIN
    2.
    发明申请
    NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, AND METHOD FOR MANUFACTURING POSITIVE ELECTRODE PLATE USED THEREIN 有权

    公开(公告)号：US20220140308A1

    公开(公告)日：2022-05-05

    申请号：US17428391

    申请日：2019-11-29

    Applicant: SANYO Electric Co., Ltd.

    Inventor： Akira Nishida ,  Yoshifumi Magari ,  Atsutoshi Ako ,  Daisuke Ikeda

    IPC: H01M4/04 ,  H01M4/525 ,  H01M4/131 ,  H01M4/1391

    Abstract: Disclosed is a method for manufacturing a positive electrode plate, wherein even when a positive electrode mix layer is densely compressed, the positive electrode plate is prevented from being so greatly bent that wrinkles created in non-coated regions during transport, winding, or lamination develop into deep winkles or cracks, thus avoiding the inability to transport or wind the positive electrode plate. This manufacturing method can provide a positive electrode plate having a positive electrode mix layer formed on the surface thereof, wherein the filling density of the positive electrode mix layer is at least 3.4 g/cm3, and the warpage amount h of the positive electrode plate in the width direction perpendicular to the longitudinal direction satisfies 0.0≤h≤3.0 mm per 1 m in the longitudinal direction.

    ELECTRODE PLATE AND METHOD FOR MANUFACTURING SAME, AND SECONDARY BATTERY AND METHOD FOR MANUFACTURING SAME
    4.
    发明申请
    ELECTRODE PLATE AND METHOD FOR MANUFACTURING SAME, AND SECONDARY BATTERY AND METHOD FOR MANUFACTURING SAME 有权

    公开(公告)号：US20220109147A1

    公开(公告)日：2022-04-07

    申请号：US17428558

    申请日：2019-12-24

    Applicant: SANYO Electric Co., Ltd.

    Inventor： Kazuaki Tamura ,  Yoshifumi Magari ,  Atsutoshi Ako ,  Akira Nishida ,  Kentaro Tsukamoto ,  Tomoyuki Yamada

    IPC: H01M4/46

    Abstract: A positive electrode plate that has a positive electrode active material layer formed on a positive electrode core, wherein the positive electrode core has, on an edge side, a thick portion which has a thickness that is greater than the thickness of a portion of the positive electrode core that has the positive electrode active material layer formed on both sides, and the positive electrode plate has a first region that extends into the thick portion from the portion of the positive electrode core that has the positive electrode active material layer formed on both sides and a second region that is positioned outside the first region in the thick portion. The average maximum diameter of the metal crystal grains that compose the first region is smaller than those of the second region.

    NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY
    6.
    发明申请
    NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY 有权

    公开(公告)号：US20230047916A1

    公开(公告)日：2023-02-16

    申请号：US17798461

    申请日：2021-01-29

    Applicant: SANYO Electric Co., Ltd.

    Inventor： Kensuke Watanabe ,  Taiki Nonaka ,  Akira Nishida

    IPC: H01M4/62 ,  H01M50/46 ,  H01M4/13

    Abstract: This non-aqueous electrolyte secondary battery comprises: a separator that has an adhesive on at least one surface thereof; and an electrode that has a core and an electrode mix layer, and that is configured so that the electrode mix layer abuts the adhesive. The electrode mix layer is configured so that the density, in the thickness-direction, of a porous body increases from the core towards the adhesive.

    SECONDARY BATTERY
    8.
    发明申请
    SECONDARY BATTERY 有权

    公开(公告)号：US20220059911A1

    公开(公告)日：2022-02-24

    申请号：US17415139

    申请日：2019-12-17

    Applicant: SANYO Electric Co., Ltd.

    Inventor： Kazuaki Tamura ,  Yoshifumi Magari ,  Atsutoshi Ako ,  Akira Nishida ,  Kentaro Tsukamoto ,  Tomoyuki Yamada

    IPC: H01M50/54 ,  H01M10/0587 ,  H01M10/04 ,  H01M4/70 ,  H01M50/533 ,  B23K26/21 ,  H01M4/46

    Abstract: A secondary battery provided with: a belt-like positive electrode plate having a plurality of positive electrode tabs; and a positive electrode current collector which is connected so that the plurality of positive electrode tabs are stacked, wherein the positive electrode plate has a positive electrode core body and a positive electrode active material layer formed on the positive electrode core bodies. At one edge side of the positive electrode plate where the plurality of positive electrode tabs are provided, one surface of the positive electrode core body has formed thereon a first protrusion that protrudes from said surface of the positive electrode core body in the thickness direction of the positive electrode core body, whereas the other surface of the positive electrode core body has no protrusion formed to protrude from said other surface of the positive electrode core body in the thickness direction of the positive electrode core body.

    NON-AQUEOUS ELECTROLYTE SECONDARY CELL AND METHOD FOR MANUFACTURING NON-AQUEOUS ELECTROLYTE SECONDARY CELL
    9.
    发明申请
    NON-AQUEOUS ELECTROLYTE SECONDARY CELL AND METHOD FOR MANUFACTURING NON-AQUEOUS ELECTROLYTE SECONDARY CELL 有权

    公开(公告)号：US20220399601A1

    公开(公告)日：2022-12-15

    申请号：US17779309

    申请日：2020-11-12

    Applicant: SANYO Electric Co., Ltd.

    Inventor： Akira Nishida

    IPC: H01M50/147 ,  H01M10/0585

    Abstract: A non-aqueous electrolyte secondary cell according to the present invention comprises: an electrode body constituted by a plurality of positive electrodes and a plurality of negative electrodes alternately layered one by one with separators interposed therebetween; a non-aqueous electrolyte solution; and a case that houses the electrode body and the non-aqueous electrolyte solution. A solution injection port for injecting the electrolyte solution is provided in the case. The density of a first region separated from the solution injection port is less than the density of a second region, which is near the solution injection port, in positive electrode compound layers of the positive electrodes and/or negative electrode compound layers of the negative electrodes constituting the electrode body.

    CYLINDRICAL BATTERY
    10.
    发明申请
    CYLINDRICAL BATTERY 审中-公开
    圆柱电池

    公开(公告)号：US20150180083A1

    公开(公告)日：2015-06-25

    申请号：US14571486

    申请日：2014-12-16

    Applicant: SANYO Electric Co., Ltd.

    Inventor： Akira Nishida ,  Yasuyuki Harada ,  Akira Hayamizu ,  Toshiyuki Ikegawa ,  Kazuhiro Kitaoka

    IPC: H01M10/04

    CPC classification number: H01M10/0422 ,  H01M2/26 ,  H01M4/32 ,  H01M4/801 ,  H01M10/286

    Abstract: A cylindrical battery comprises a spiral electrode assembly having a positive electrode plate being provided with a porous nickel sintered substrate using a nickel coated steel plate as a conductive core substrate, and containing a positive electrode active material mainly including a nickel hydroxide, a negative electrode plate, and a separator, and the positive electrode plate and the negative electrode plate are wound into a spiral form interposing the separator therebetween, and the positive electrode plate has a positive core substrate tab portion in which the conductive core substrate is exposed without the porous nickel sintered substrate at one end portion in the height direction, and in in a finally wound end portion of the spiral electrode assembly, a corner tip portion of the positive core substrate tab portion is bent in a direction toward an axis of the spiral electrode assembly.

    Abstract translation: 圆柱形电池包括具有正极板的螺旋电极组件，该正极板设有使用镀镍钢板作为导电芯基板的多孔镍烧结基板，并且包含主要包括氢氧化镍的正极活性材料，负极板 和隔膜，并且将正极板和负极板缠绕成螺旋形状，将隔板插入其间，正极板具有正芯基板突片部分，导电芯基板暴露于无芯镍 烧结基板在高度方向的一端部处，在螺旋状电极组件的最终卷绕端部中，正芯基板凸片部的角部前端部朝向螺旋状电极组件的轴线弯曲。

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