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    SEALED BATTERY
    2.
    发明申请
    SEALED BATTERY 审中-公开

    公开(公告)号：US20170237049A1

    公开(公告)日：2017-08-17

    申请号：US15432040

    申请日：2017-02-14

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Koshiro YONEDA

    IPC: H01M2/06 ,  H01M2/10 ,  H01M10/0525

    Abstract: Provided is a sealed battery, which includes an insulating member arranged between a lid member and a collector terminal member. The insulating member includes a cylindrical portion that is positioned between a through hole and a connecting portion and surrounds the connecting portion, and a flat plate portion positioned between the lid member and the flange portion, and the flat plate portion has a first projecting portion projecting towards the lid member side, and a second projecting portion projecting towards the flange portion side. In a sectional view taken along a virtual plane including a central axis of the connecting portion, a peak of the first projecting portion is provided at a position closer to the central axis than a peak position of the second projecting portion.

    SECONDARY BATTERY
    3.
    发明申请
    SECONDARY BATTERY 有权
    二次电池

    公开(公告)号：US20160336548A1

    公开(公告)日：2016-11-17

    申请号：US15152910

    申请日：2016-05-12

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Keiichiro KOBAYASHI ,  Koshiro YONEDA

    IPC: H01M2/02

    CPC classification number: H01M2/0257 ,  H01M2/028 ,  H01M10/0431 ,  H01M10/0525 ,  H01M10/0587 ,  H01M2002/0297

    Abstract: A thermal expansion coefficient of a battery case may be lower than those of an insulating film and a separator. Portions of the insulating film, which are held in contact with the electrode body and the battery case, may be adhered to the separator, which is positioned on the outermost surface of the electrode body, and the battery case, respectively. A first 90 degree peeling strength of an adhesion portion between the insulating film and the battery case is higher than a second 90 degree peeling strength of an adhesion portion between the insulating film and the separator. The first 90 degree peeling strength may be 15 mN/cm or higher, and the second 90 degree peeling strength may be 5 mN/cm or higher.

    Abstract translation: 电池壳体的热膨胀系数可以低于绝缘膜和隔膜的热膨胀系数。 与电极体和电池壳体保持接触的绝缘膜的部分可以分别粘附到位于电极体的最外表面上的隔膜和电池壳体。 绝缘膜和电池壳体之间的粘合部分的第一90度剥离强度高于绝缘膜和隔膜之间的粘合部分的第二90度剥离强度。 第一90度剥离强度可以为15mN / cm以上，第二90度剥离强度可以为5mN / cm以上。

    SECONDARY BATTERY
    4.
    发明申请
    SECONDARY BATTERY 有权

    公开(公告)号：US20210218068A1

    公开(公告)日：2021-07-15

    申请号：US17106263

    申请日：2020-11-30

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Koshiro YONEDA ,  Fumihiko ISHIGURO

    IPC: H01M10/0587 ,  H01M4/66

    Abstract: A secondary battery has a flat-shaped wound electrode body and a rectangular battery case housing the wound electrode body. In the wound electrode body, in at least any one of a positive electrode current collection foil laminated part and a negative electrode current collection foil laminated part, a positive electrode current collection foil exposed portion or a negative electrode current collection foil exposed portion is foil-bundled at a foil-bundling position and joined to a positive electrode current collection terminal or a negative electrode current collection terminal. At the foil-bundling position, the thickness A of the wound electrode body in the lamination direction and the shortest distance B to the foil-bundling position from the vertex of the R portion closest to the foil-bundling position among R portions of the wound electrode body satisfy, B≤(1/2) A.

    NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY
    5.
    发明申请
    NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY 有权

    公开(公告)号：US20220021047A1

    公开(公告)日：2022-01-20

    申请号：US17354697

    申请日：2021-06-22

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Kensaku MIYAZAWA ,  Masaki KATO ,  Akira KIYAMA ,  Sho ANDO ,  Kunimitsu YAMAMOTO ,  Koshiro YONEDA

    IPC: H01M10/6551 ,  H01M10/613 ,  H01M10/647 ,  H01M4/485 ,  H01M4/58

    Abstract: A cell that is a non-aqueous electrolyte secondary battery includes an electrode body in which a sheet-shaped positive electrode and a sheet-shaped negative electrode are stacked via a separator, and a battery case that accommodates the electrode body and an electrolytic solution. The electrode body includes a predetermined number of outer layers including an outermost layer made up of the separator and the negative electrode disposed on an outermost side of the electrode body, and an inner layer disposed on an inner side than the outer layer. The outer layer includes a negative electrode mixture layer configured to suppress heat generation of the electrode body caused by a short circuit of the electrode body as a heat generation suppressing member. The inner layer does not include the heat generation suppressing member.

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