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1819 条记录 (耗时 0.026 秒)

    NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
    1.
    发明公开
    NONAQUEOUS ELECTROLYTE SECONDARY BATTERY 审中-公开

    公开(公告)号：US20240291043A1

    公开(公告)日：2024-08-29

    申请号：US18439767

    申请日：2024-02-13

    申请人： Prime Planet Energy & Solutions, Inc.

    发明人： Takuya ASARI

    IPC分类号： H01M10/0587 ,  H01M10/0525 ,  H01M10/42

    CPC分类号： H01M10/0587 ,  H01M10/42 ,  H01M10/0525 ,  H01M2010/4292

    摘要： In a nonaqueous electrolyte secondary battery disclosed herein, a length of a negative electrode active material layer in a winding axis direction of a wound electrode body is 200 mm or more, an infiltration speed of a nonaqueous electrolytic solution in the negative electrode active material layer is 0.02 μL/s to 0.05 μL/s, a distance between an end portion of a positive electrode active material layer and an end portion of the negative electrode active material layer is more than 0 mm and 5 mm or less in the winding axis direction, and, in a fully charged state, a ratio of the nonaqueous electrolytic solution to a total void volume of the positive electrode active layer and the negative electrode active layer in the wound electrode body is 130% or less.

    BATTERY AND CONNECTION APPARATUS
    7.
    发明公开
    BATTERY AND CONNECTION APPARATUS 有权

    公开(公告)号：US20240021937A9

    公开(公告)日：2024-01-18

    申请号：US17158581

    申请日：2021-01-26

    申请人： Sony Corporation

    发明人： Shigeki Motoyama ,  Atsushi Mitani ,  Atsuhiro Kumagai ,  Yukio Tsuchiya ,  Nobutaka Saitoh

    IPC分类号： H01M50/213 ,  H01M10/42 ,  H01M50/543

    CPC分类号： H01M50/213 ,  H01M10/42 ,  H01M10/4221 ,  H01M50/543 ,  Y02E60/10 ,  H01M2220/30

    摘要： Disclosed is a battery including a casing including cells housed therein and a terminal part including a connection terminal connected to an electrode terminal of a connection apparatus, in which in the casing, a functional groove having a predetermined function in which a longitudinal direction coincides with a connection direction of the connection terminal and the electrode terminal is formed, and the functional groove includes a plurality of functional units having different lengths which are continuously formed. Accordingly, since there is no part that divides a functional unit between a plurality of functional units having different lengths, a size of the functional groove in a direction in which the functional units are continuous is a sum of sizes of a plurality of functional units, and thus it is possible to reduce the size of the battery while securing high functionality.

    Secondary battery
    10.
    发明授权
    Secondary battery 有权

    公开(公告)号：US11728466B2

    公开(公告)日：2023-08-15

    申请号：US17512227

    申请日：2021-10-27

    申请人： LG Chem, Ltd.

    发明人： Su Hyun Yun ,  Kyoung Won Kang ,  Ki Woong Kim ,  Jung Shik Oh

    IPC分类号： H01M4/02 ,  H01M10/04 ,  H01M10/0583 ,  H01M10/42 ,  H01M4/66 ,  H01M50/572 ,  H01M50/105

    CPC分类号： H01M4/02 ,  H01M4/66 ,  H01M10/04 ,  H01M10/0459 ,  H01M10/0583 ,  H01M10/42 ,  H01M50/572 ,  H01M50/105

    摘要： A secondary battery comprises an electrode assembly comprising radical units in which first and second electrodes are alternately laminated with a separator therebetween and a separation film surrounding the radical units to be repeatedly laminated, wherein the electrode assembly comprises a protection unit laminated on an outermost separation film disposed on the uppermost end or lowermost end of the separation film, the protection unit has a structure comprising a second protection electrode, a separator, and a first protection electrode which are successively laminated from the outermost separation film disposed on the uppermost end or lowermost end of the electrode assembly, the second protection electrode has a cross-sectional coating structure comprising a second collector and a second electrode active material portion coated with a second electrode active material on an inner surface of the second collector, and the inner surface is a surface facing a center of the electrode assembly.