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11 条记录 (耗时 0.01 秒)

    PROTECTION METHOD AND DEVICE FOR SECONDARY BATTERY, SECONDARY BATTERY, BATTERY MODULE, BATTERY PACK, AND ELECTRIC DEVICE
    4.
    发明公开
    PROTECTION METHOD AND DEVICE FOR SECONDARY BATTERY, SECONDARY BATTERY, BATTERY MODULE, BATTERY PACK, AND ELECTRIC DEVICE 审中-实审

    公开(公告)号：EP4379946A1

    公开(公告)日：2024-06-05

    申请号：EP22946225.4

    申请日：2022-06-16

    申请人： Contemporary Amperex Technology Co., Limited

    发明人： LI, Ting ,  JIN, Haizu ,  NIU, Shaojun ,  TANG, Huaichao ,  PENG, Longqing

    IPC分类号： H01M50/571 ,  H01M50/202 ,  C23C16/40

    CPC分类号： Y02E60/10 ,  H01M50/202 ,  C23C16/40 ,  H01M50/571

    摘要： This application relates to a protection method for a secondary battery, the secondary battery including an injection opening. The method includes: step (1): evacuating the secondary battery through the injection opening to within 100 kPa, optionally to within 100 Pa; step (2): introducing a first reactant into the secondary battery through the injection opening until the pressure rises by more than 1 Pa, optionally more than 1 kPa, and maintaining the pressure for more than 1 ms, optionally for 0.1s-600s; and optionally, step (3): evacuating the secondary battery through the injection opening to within 100 kPa, optionally to within 100 Pa; and step (4): introducing a second reactant into the secondary battery through the injection opening until the pressure rises by more than 1 Pa, optionally more than 1 kPa, and maintaining the pressure for more than 1 ms, optionally for 0.1s-600s, thereby forming a protection layer on internal surface of the secondary battery. This application also relates to a protection device for a secondary battery, a secondary battery, a battery module, a battery pack, and an electric apparatus.

    BATTERY UNIT, BATTERY MODULE, AND VEHICLE
    5.
    发明公开
    BATTERY UNIT, BATTERY MODULE, AND VEHICLE 审中-实审

    公开(公告)号：EP4395047A1

    公开(公告)日：2024-07-03

    申请号：EP22909467.7

    申请日：2022-10-18

    申请人： BYD Company Limited

    发明人： WANG, Xinyue ,  YUAN, Wansong ,  DUAN, Pingan ,  WEN, Aipeng

    IPC分类号： H01M50/531 ,  H01M50/533 ,  H01M50/103 ,  H01M50/571

    CPC分类号： Y02P70/50 ,  Y02E60/10 ,  H01M50/103 ,  H01M50/533 ,  H01M50/531 ,  H01M50/571

    摘要： A battery unit, a battery module, and a vehicle are provided. The battery unit includes a housing, an electrode core, a first electrode terminal, and a second electrode terminal. A chamber is defined in the housing. The electrode core is arranged in the chamber, the electrode core includes a first electrode tab and a second electrode tab, one of the first electrode tab and the second electrode tab is a positive electrode tab, the other one of the first electrode tab and the second electrode tab is a negative electrode tab, and the positive electrode tab is physically and electrically connected to the housing. The first electrode terminal is electrically connected to the first electrode tab. The second electrode terminal is electrically connected to the second electrode tab.

    PARTITION MEMBER, BATTERY MODULE, AND BATTERY PACK
    6.
    发明公开
    PARTITION MEMBER, BATTERY MODULE, AND BATTERY PACK 审中-实审

    公开(公告)号：EP4362194A1

    公开(公告)日：2024-05-01

    申请号：EP22828468.3

    申请日：2022-06-22

    申请人： Mitsubishi Chemical Corporation

    发明人： KAWAI, Tomohiro ,  HASHIMOTO, Kei

    IPC分类号： H01M50/293 ,  H01M50/571 ,  H01M50/588 ,  H01M50/593

    CPC分类号： H01M50/588 ,  H01M50/293 ,  H01M50/571 ,  H01M50/593 ,  Y02E60/10

    摘要： A partition member, which separates objects to be separated from each other, includes a porous sheet, and a water absorbing material provided at least either on a surface of the porous sheet or inside the porous sheet. The partition member that has dimensions of 100 mm × 60 mm and has been stored for 24 hours at a temperature of 25°C, a humidity of 40%, and an atmospheric pressure of 1 atm is used as a sample, and a ratio of a water absorption volume when a portion of 10 mm from an lower end of a 60 mm side of the sample is immersed in water for 2 minutes, to a volume of the sample {the water absorption volume (cm3) divided by a volume (cm3) of the partition member} is in a range of 0.1 to 0.9.

    BATTERY PACK
    7.
    发明公开
    BATTERY PACK 审中-实审

    公开(公告)号：EP4435959A1

    公开(公告)日：2024-09-25

    申请号：EP22892935.2

    申请日：2022-11-15

    申请人： Vehicle Energy Japan Inc.

    发明人： TADA Akinori ,  WATAHIKI Yoshitaka ,  SUZUKI Takayuki

    IPC分类号： H01M50/522 ,  H01M50/209 ,  H01M50/503 ,  H01M50/505 ,  H01M50/526 ,  H01M50/562 ,  H01M50/571

    CPC分类号： Y02E60/10 ,  H01M50/522 ,  H01M50/562 ,  H01M50/571 ,  H01M50/503 ,  H01M50/526 ,  H01M50/505 ,  H01M50/209

    摘要： To provide a battery pack capable of suppressing heat generation due to current flowing through a bus bar and thus suppressing cell deterioration, and improving battery performance by weight reduction. A battery pack 10 includes first to fourth cells 1 to 4 stacked together, each cell including a positive electrode external terminal 12 and a negative electrode external terminal 13 having higher conductivity, and a bus bar 6 that electrically connects the positive electrode external terminal 12 of the second cell 2 and the negative electrode external terminal 13 of the third cell 3, the second and third cells 2 and 3 being disposed side by side next to each other. The bus bar 6 includes a first conductive part 6a connected to the positive electrode external terminal 12 of the second cell 2, a second conductive part 6b connected to the negative electrode external terminal 13 of the third cell 3 and having higher conductivity and higher specific gravity, and a connecting part 6c that connects the first conductive part 6a and the second conductive part 6b. The connecting part 6c is disposed in a first region facing the second cell 2 or in a second region facing the third cell 3.

    BIPOLAR STORAGE BATTERY
    9.
    发明公开
    BIPOLAR STORAGE BATTERY 审中-实审

    公开(公告)号：EP4411970A1

    公开(公告)日：2024-08-07

    申请号：EP22876390.0

    申请日：2022-09-28

    申请人： The Furukawa Battery Co., Ltd. ,  FURUKAWA ELECTRIC CO., LTD.

    发明人： SHIBATA, Satoshi ,  YOSHIDA, Hideaki ,  HIROTA, Kenji

    IPC分类号： H01M50/533 ,  H01M10/18 ,  H01M50/15 ,  H01M50/176 ,  H01M50/186 ,  H01M50/193 ,  H01M50/474 ,  H01M50/477 ,  H01M50/531 ,  H01M50/571

    CPC分类号： H01M50/477 ,  H01M50/533 ,  H01M50/176 ,  H01M50/474 ,  H01M10/18 ,  H01M50/531 ,  H01M50/15 ,  H01M50/571 ,  H01M50/186 ,  H01M50/193

    摘要： Provided is a bipolar storage battery in which a connection portion of a terminal with a lug portion of a current collector plate is difficult to corrode. The bipolar storage battery includes a lid (150) covering surrounding portions (122a, 132a, 142a) of frame bodies (122, 132, 142) surrounding one of side surfaces of each cell member (110), and a positive electrode terminal component (160) and a negative electrode terminal component (170) including connection surfaces (161a, 171a) exposed to an outer surface of the lid, in which a positive electrode current collector plate (111aa) constituting one of the cell members (110) includes a positive electrode lug portion (11), the positive electrode lug portion is connected with the positive electrode terminal component (160) at a point ahead of a location where the positive electrode lug portion penetrates the surrounding portion (132a) and the lid, a negative electrode current collector plate (112aa) constituting one of the cell members includes a negative electrode lug portion (12), and the negative electrode lug portion is connected with the negative electrode terminal component (170) at a point ahead of a location where the negative electrode lug portion penetrates the surrounding portion (142a) and the lid.

    BATTERY UNIT, BATTERY MODULE, AND VEHICLE
    10.
    发明公开
    BATTERY UNIT, BATTERY MODULE, AND VEHICLE 审中-实审

    公开(公告)号：EP4395046A1

    公开(公告)日：2024-07-03

    申请号：EP22909395.0

    申请日：2022-09-14

    申请人： BYD Company Limited

    发明人： YUAN, Wansong ,  WANG, Xinyue ,  DUAN, Pingan ,  WEN, Aipeng

    IPC分类号： H01M50/531 ,  H01M50/533 ,  H01M50/103

    CPC分类号： Y02P70/50 ,  Y02E60/10 ,  H01M50/103 ,  H01M50/533 ,  H01M50/531 ,  H01M50/571

    摘要： A battery unit, a battery module, and a vehicle are provided. The battery unit includes a housing, an electrode core, a first electrode terminal, and a second electrode terminal. A chamber is defined in the housing. The electrode core is arranged in the chamber, the electrode core includes a first electrode tab and a second electrode tab, one of the first electrode tab and the second electrode tab is a positive electrode tab, the other one of the first electrode tab and the second electrode tab is a negative electrode tab, the positive electrode tab is physically and electrically connected to the housing, and each of an end of the first electrode tab and/or an end of the second electrode tab away from the electrode core includes multiple connection pieces spaced apart. The first electrode terminal is electrically connected to the first electrode tab. The second electrode terminal is electrically connected to the second electrode tab.