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    BATTERY CELL AND ELECTRIC APPARATUS
    4.
    发明公开
    BATTERY CELL AND ELECTRIC APPARATUS 审中-公开

    公开(公告)号：US20240250376A1

    公开(公告)日：2024-07-25

    申请号：US18621371

    申请日：2024-03-29

    Applicant: Ningde Amperex Technology Limited

    Inventor： Guowen ZHANG

    IPC: H01M50/375 ,  H01M50/342 ,  H01M50/547 ,  H01M50/636

    CPC classification number: H01M50/375 ,  H01M50/342 ,  H01M50/547 ,  H01M50/636 ,  H01M2200/10

    Abstract: A battery cell includes a housing and a pressure relief mechanism. The housing is provided with a first through hole and the pressure relief mechanism covers the first through hole. The pressure relief mechanism includes an adhesive film, and the adhesive film can be heated and melted to form a pressure relief channel connecting the inside and outside of the housing. The pressure relief mechanism has good thermal sensitivity, allowing for highly reliable pressure relief, thus improving the safety of the battery cell. In addition, as compared with the pressure relief mechanism with engraved grooves, no large space needs to be reserved in some embodiments, allowing for a more compacted structure of the electric apparatus and lower preparation costs of the pressure relief mechanism.

    BATTERY PACK
    6.
    发明公开
    BATTERY PACK 审中-公开

    公开(公告)号：US20240234937A9

    公开(公告)日：2024-07-11

    申请号：US18546935

    申请日：2022-02-22

    Applicant: Panasonic Energy Co., Ltd.

    Inventor： KENSAKU TAKEDA ,  TAKEAKI WAKABAYASHI

    IPC: H01M50/367 ,  H01M50/204 ,  H01M50/342 ,  H01M50/383

    CPC classification number: H01M50/367 ,  H01M50/342 ,  H01M50/383 ,  H01M50/204

    Abstract: A flame due to abnormality is prevented from leaking to an outside. A battery pack includes a first inorganic plate disposed at an opening of a housing and spaced apart from a battery holder by a first gap (d1), and a second inorganic plate spaced apart from the first inorganic plate by a second gap (d2). The first inorganic plate has first through-holes opened in a predetermined first pattern. The second inorganic plate has second through-holes opened in a prescribed second pattern. The housing includes an inner rib projecting from an inner surface of the opening of the housing. The inner rib is provided between the first and second inorganic plates to form the second gap (d2). The first and second inorganic plates are positioned such that the second through-holes are deviated from the first through-holes to prevent an inside of the housing from being viewed from an outside of the housing through the second through-holes.

    BATTERY
    9.
    发明公开
    BATTERY 审中-公开

    公开(公告)号：US20240039122A1

    公开(公告)日：2024-02-01

    申请号：US18359872

    申请日：2023-07-27

    Applicant: Prime Planet Energy & Solutions, Inc.

    Inventor： Taisuke ISEDA ,  Akira NISHIDA

    IPC: H01M50/46 ,  H01M50/636 ,  H01M50/342 ,  H01M4/525 ,  H01M4/62

    CPC classification number: H01M50/461 ,  H01M50/636 ,  H01M50/342 ,  H01M4/525 ,  H01M4/621

    Abstract: A battery disclosed herein includes an electrode body including a positive electrode including a positive electrode active material layer, a negative electrode, and a separator. The separator includes an adhesive layer on a surface that faces the positive electrode. The adhesive layer includes a first formation region provided so as to face the positive electrode active material layer, and a second formation region provided so as to protrude outward, in an up-down direction or a long side direction of the battery, relative to one end part of the positive electrode active material layer. The first formation region has smaller weight per area than the second formation region.

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