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    RECTANGULAR SECONDARY BATTERY AND METHOD OF MANUFACTURING THE SAME
    11.
    发明申请
    RECTANGULAR SECONDARY BATTERY AND METHOD OF MANUFACTURING THE SAME 有权

    公开(公告)号：US20250096278A1

    公开(公告)日：2025-03-20

    申请号：US18968284

    申请日：2024-12-04

    Applicant: SANYO Electric Co., Ltd.

    Inventor： Ryoichi Wakimoto ,  Hiroyuki Yamada

    IPC: H01M4/66 ,  H01M50/16 ,  H01M50/176 ,  H01M50/184 ,  H01M50/186 ,  H01M50/191 ,  H01M50/536 ,  H01M50/54 ,  H01M50/55 ,  H01M50/553 ,  H01M50/562 ,  H01M50/566

    Abstract: A rectangular secondary battery includes a rectangular casing that contains an electrode body, a sealing plate that seals an opening of the rectangular casing, a first positive electrode tab group that is composed of a plurality of positive electrode tabs, a positive electrode terminal that is attached to the sealing plate, a second positive electrode current collector that constitutes a positive electrode current collector member that is electrically connected to the first positive electrode tab group and the positive electrode terminal, and a second insulator. The second insulator includes a base portion that is disposed between the sealing plate and the second positive electrode current collector. The first positive electrode tab group is bent and connected to the second positive electrode current collector, the region being disposed along the sealing plate. A first wall portion is disposed between the first positive electrode tab group and the rectangular casing.

    Rectangular secondary battery and method of manufacturing the same
    12.
    发明授权
    Rectangular secondary battery and method of manufacturing the same 有权

    公开(公告)号：US12191499B2

    公开(公告)日：2025-01-07

    申请号：US16488370

    申请日：2018-02-22

    Applicant: SANYO Electric Co., Ltd.

    Inventor： Ryoichi Wakimoto ,  Hiroyuki Yamada

    IPC: H01M50/186 ,  H01M4/66 ,  H01M50/16 ,  H01M50/176 ,  H01M50/184 ,  H01M50/191 ,  H01M50/536 ,  H01M50/54 ,  H01M50/55 ,  H01M50/553 ,  H01M50/562 ,  H01M50/566

    Abstract: A rectangular secondary battery includes a rectangular casing that contains an electrode body, a sealing plate that seals an opening of the rectangular casing, a first positive electrode tab group that is composed of a plurality of positive electrode tabs, a positive electrode terminal that is attached to the sealing plate, a second positive electrode current collector that constitutes a positive electrode current collector member that is electrically connected to the first positive electrode tab group and the positive electrode terminal, and a second insulator. The second insulator includes a base portion that is disposed between the sealing plate and the second positive electrode current collector. The first positive electrode tab group is bent and connected to the second positive electrode current collector, the region being disposed along the sealing plate. A first wall portion is disposed between the first positive electrode tab group and the rectangular casing.

    ELECTRICITY STORAGE DEVICE
    14.
    发明申请
    ELECTRICITY STORAGE DEVICE 审中-公开

    公开(公告)号：US20190237742A1

    公开(公告)日：2019-08-01

    申请号：US16255461

    申请日：2019-01-23

    Applicant: SANYO Electric Co., Ltd.

    Inventor： Hiroshi Takabayashi ,  Hiroyuki Yamada

    IPC: H01M2/36 ,  H01M2/06

    CPC classification number: H01M2/362 ,  H01M2/06 ,  H01M2220/20

    Abstract: Provided is an electricity storage device having a high volumetric energy density and high reliability. The electricity storage device includes: an electrode assembly including first and second electrode plates and a separator interposed therebetween; an exterior housing that houses the electrode assembly; a lid that covers an opening of the exterior housing; and electrode terminals that are electrically connected to the electrode assembly and partially protrude from the lid to the outside. The lid has a liquid injection hole for injecting an electrolytic solution into the exterior housing. A tubular member extending from the lid toward the electrode assembly is provided between the outer surface of the lid and the electrode assembly so as to surround an opening of the liquid injection hole. A covering member connected to the tubular member and interposed between the liquid injection hole and the electrode assembly is provided.

    SECONDARY BATTERY
    15.
    发明申请
    SECONDARY BATTERY 审中-公开

    公开(公告)号：US20190237728A1

    公开(公告)日：2019-08-01

    申请号：US16312395

    申请日：2017-06-27

    Applicant: SANYO Electric Co., Ltd.

    Inventor： Ryoichi Wakimoto ,  Hiroyuki Yamada

    IPC: H01M2/12 ,  H01M2/34

    Abstract: A secondary battery includes: an electrode assembly including a positive electrode plate and a negative electrode plate; an exterior housing that has an opening and houses the electrode assembly; and a sealing plate (2) that seals the opening. The exterior housing and the sealing plate (2) form a battery case. A deformable member (19) that deforms when the pressure inside the battery case reaches a prescribed value or higher and a gas release valve (18) that breaks when the pressure inside the battery case reaches a prescribed value or higher to release gas inside the battery case to the outside of the battery case are provided in the sealing plate (2). A metallic reinforcing member (30) is connected to the inner surface of the sealing plate (2).

    Secondary battery with pressing projection
    16.
    发明授权
    Secondary battery with pressing projection 有权

    公开(公告)号：US12230843B2

    公开(公告)日：2025-02-18

    申请号：US17341594

    申请日：2021-06-08

    Applicant: SANYO Electric Co., Ltd.

    Inventor： Ryoichi Wakimoto ,  Hiroyuki Yamada

    IPC: H01M50/553 ,  H01M50/147 ,  H01M50/176 ,  H01M50/531 ,  H01M50/55 ,  H01M50/562 ,  H01M50/578 ,  H01M50/574

    Abstract: A conductive member (61) is disposed near a side of the sealing plate (2) facing the inside of a battery with a first insulating member (10) disposed therebetween. The conductive member (61) has a conductive-member opening portion (61f) at a side facing the electrode assembly. An inserting portion (7b) of a positive electrode terminal (7) is inserted through a third terminal-receiving hole (61c) in the conductive member (61) and connected to the conductive member (61). The conductive-member opening portion (61f) of the conductive member (61) is sealed by a deformation plate (62), and the deformation plate (62) is connected to a first positive-electrode current collector (6a), which is electrically connected to positive electrode plates. The conductive member (61) includes a pressing projection (61e) that projects toward the first insulating member (10) from a portion thereof that faces the first insulating member (10).

    Secondary battery and method for manufacturing the same
    18.
    发明授权
    Secondary battery and method for manufacturing the same 有权

    公开(公告)号：US11699825B2

    公开(公告)日：2023-07-11

    申请号：US16479744

    申请日：2018-01-23

    Applicant: SANYO Electric Co., Ltd.

    Inventor： Ryoichi Wakimoto ,  Hirofumi Furukawa ,  Hiroyuki Yamada

    IPC: H01M50/183 ,  H01M50/30 ,  H01M50/578 ,  H01M50/593 ,  H01M10/04 ,  H01M50/536

    CPC classification number: H01M50/183 ,  H01M10/0413 ,  H01M10/0436 ,  H01M50/30 ,  H01M50/578 ,  H01M50/593 ,  H01M50/536

    Abstract: A conductive member is disposed on a side of the sealing plate adjacent to an electrode assembly with a first insulating member disposed therebetween. The conductive member has a conductive-member opening portion. The conductive-member opening portion of the conductive member is sealed by a deformation plate. The deformation plate is connected to a first positive-electrode current collector, which is electrically connected to positive electrode plates. A second insulating member is disposed between the deformation plate and the first positive-electrode current collector. Fixing projections and displacement prevention projections are provided on a surface of the second insulating member. The second insulating member is fixed to the first positive-electrode current collector such that the fixing projections are disposed in fixing holes in the first positive-electrode current collector. The displacement prevention projections on the second insulating member are disposed in displacement prevention holes in the first positive-electrode current collector.

    Square secondary battery and method of manufacturing same
    20.
    发明授权
    Square secondary battery and method of manufacturing same 有权

    公开(公告)号：US11289780B2

    公开(公告)日：2022-03-29

    申请号：US16335857

    申请日：2017-09-28

    Applicant: SANYO Electric Co., Ltd.

    Inventor： Ryoichi Wakimoto ,  Hiroyuki Yamada

    IPC: H01M2/26 ,  H01M2/02 ,  H01M2/06 ,  H01M10/04 ,  H01M50/531 ,  H01M50/172 ,  H01M50/543 ,  H01M50/572

    Abstract: To provide a square secondary battery with a high reliability.
    A square secondary battery (20) including an electrode body (3) having a positive electrode plate and a negative electrode plate, a square outer package (1) that includes an opening and that houses the electrode body (3), and a sealing plate (2) that seals the opening of the square outer package (1), in which an inner side insulating member (12) serving as a first insulating member is disposed between the sealing plate (2) and a negative electrode collector member (8) and is fixed to the sealing plate (2), and in which a second insulating member (80) disposed between the sealing plate (2) and the electrode body (3) is connected to the inner side insulating member (12) serving as the first insulating member.

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