BATTERY
    24.
    发明公开
    BATTERY 审中-实审

    公开(公告)号:EP4395020A2

    公开(公告)日:2024-07-03

    申请号:EP23175539.8

    申请日:2023-05-26

    Abstract: Provided is a battery, including: a battery case (10), a terminal post (20), and a rigid sealing member (30). The terminal post (20) is arranged in a terminal post (20) through hole (11) on the battery case (10). A glass transition temperature of the rigid sealing member (30) is 300°C to 600°C. The rigid sealing member (30) is at least partially arranged in the terminal post (20) through hole (11) to seal the terminal post (20) and the battery case (10). A distance a between a first endpoint (12) and a wall of a terminal post (20) through hole (11) along an extending direction of a first connecting line and a distance b between a second endpoint (13) and the wall of the terminal post (20) through hole (11) along an extending direction of a second connecting line satisfies 0.9≤a/b≤1.1.

    BATTERY
    27.
    发明公开
    BATTERY 审中-公开

    公开(公告)号:EP4312302A1

    公开(公告)日:2024-01-31

    申请号:EP23183411.0

    申请日:2023-07-04

    Inventor: OSHIMA, Kazuki

    Abstract: In accordance with a preferable one aspect of a battery herein disclosed, the battery comprising: an electrode body including respective electrodes of positive and negative electrodes; a battery case including an opening, and for accommodating the electrode body; a sealing plate including a terminal mounting hole, and for sealing the opening; a collector terminal electrically joined at one end thereof with any electrode of the positive and negative electrodes inside the battery case, and inserted at another end thereof through the terminal mounting hole to be exposed to an outer side surface of the sealing plate; and an insulating member for establishing an insulation between at least a part of the sealing plate and the collector terminal. A plurality of concave parts are existed at the sealing plate, and the concave part is filled with the insulating member opposed to the concave part.

    CAP ASSEMBLY, METHOD FOR MAKING ITS CONNECTOR, AND BATTERY WITH THIS CAP ASSEMBLY

    公开(公告)号:EP4280366A1

    公开(公告)日:2023-11-22

    申请号:EP23173250.4

    申请日:2023-05-12

    Abstract: The present invention relates to a cap assembly for a battery, comprising: a connector, the connector comprising a central part, a peripheral part, and a transition part between the former two parts, wherein a current interrupt device is disposed on the central part;
    a pressure relief piece, the pressure relief piece being located outside a cell of the battery with respect to the connector and electrically connected to the connector via the current interrupt device, and being able to turn over when the internal pressure of the cell exceeds the overturning gas pressure of the pressure relief piece so as to disconnect the current interrupt device, cutting off the electrical connection between the pressure relief piece and the connector; and an internal insulating washer, the internal insulating washer being disposed on the peripheral part of the connector, wherein an insulating coating is applied to the peripheral part and transition part of the connector on one side facing the pressure relief piece. The insulating coating can prevent reconnection of the connector to the pressure relief piece in the case of an external short circuit and improve the short circuit safety of the battery. The present application further relates to a method for making a connector for the cap assembly and to a battery comprising the cap assembly.

    A BUTTON BATTERY WITH IMPROVED SEALING PROPERTIES

    公开(公告)号:EP4195372A1

    公开(公告)日:2023-06-14

    申请号:EP21213162.7

    申请日:2021-12-08

    Applicant: Renata AG

    Abstract: According to the invention, a button battery (1',1") is provided that includes a sealing assembly, comprising one of the terminals (9) of the battery, an electrically insulating portion (17) and a circumferential wall portion (15). The insulating portion (17) forms a hermetic bond with the terminal (9) and with the wall portion (15), obtainable by methods applied in glass-to-metal type technology. The sealing assembly is receptacle-shaped and one or more components of the battery such as the anode (8), the separator sheet (7) and the cathode (3) may be inserted in said receptacle shape prior to assembling the battery. The wall portion (15) forms a part of the second terminal and is attached to the remainder of said second terminal by an electrically conductive and hermetically closed connection such as a circumferential weld seam (16). A battery according to the invention may be produced by inserting one or more components of the battery into the sealing assembly (9,17,15) and attaching the wall portion (15) of the sealing assembly to the remainder (2,2') of the second terminal, for example by welding.

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