BIPOLAR STORAGE BATTERY
    7.
    发明公开

    公开(公告)号:EP4293791A1

    公开(公告)日:2023-12-20

    申请号:EP21925838.1

    申请日:2021-12-20

    Abstract: There is provided a bipolar storage battery that can prevent outward leakage of an electrolytic solution and reduction of mechanical strength by strongly joining plates each holding a cell member, thereby ensuring hermeticity of the inside of a cell and the mechanical strength, and also making the bipolar storage battery compact while reducing the number of components. A bipolar lead-acid battery (1) includes an internal frame unit (11) including a bipolar plate (111) in which a positive pole (120) is provided on one surface and a negative pole (110) is provided on another surface, and an internal rim (112) provided in an outer edge of the bipolar plate (111). A plurality of the internal frame units (11) is stacked and adjacent ones of the internal rims (112) are welded to each other. A ratio of a value of a width L1 of the internal rim (112) to a value indicating a depth of welding between the rims is equal to or higher than 2.7 times and is equal to or lower than 16.0 times.

    BATTERY CONNECTING MEMBER, BATTERY AND BATTERY MANUFACTURING METHOD

    公开(公告)号:EP4293767A1

    公开(公告)日:2023-12-20

    申请号:EP22194052.1

    申请日:2022-09-06

    Applicant: CALB Co., Ltd.

    Abstract: A battery connecting member (60), a battery, and a battery manufacturing method are provided. The battery connecting member (60) is configured to be electrically connected to a cell (20) and a battery casing (10), and the battery connecting member (60) includes first and second connecting portions (61, 62) and a buffering portion (63). The first connecting portion (61) is electrically connected to the cell (20), and the second connecting portion (62) is electrically connected to the battery casing (10). Two ends of the buffering portion (63) are respectively connected to the first and second connecting portions (61, 62). An included angle is provided between the first and second connecting portions (61, 62), such that a surface of the second connecting portion (62) for electrical connection to the battery casing (10) is inclined to a surface of the first connecting portion (61) for electrical connection to the cell (20).

    ELECTRODE FOR ELECTRIC BATTERY, AND STRUCTURE FOR ELECTRODES OR ASSOCIATED BATTERY

    公开(公告)号:EP4195393A1

    公开(公告)日:2023-06-14

    申请号:EP21765962.2

    申请日:2021-08-06

    Abstract: Electrode (2) for electric battery in which upper area a funnel-like conduit is arranged, determining a tilted cover (4), converging in an upward direction, finished off in a kind of chimney (5) through which gases produced in the electrolysis are evacuated, cover (4) that is traversed on one of its sides by the terminal (6) of the electrode (2), with a set of suitably spaced slats (3) parallel to each other and tilted in a convergent way in the upper direction for guiding the gas bubbles generated in the electrolysis towards the chimney (5). According to another object of the invention, a structure (1) for electrodes is described, for application in "lead-acid" electric batteries.

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