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    CYLINDRICAL LITHIUM PRIMARY BATTERY
    1.
    发明公开
    CYLINDRICAL LITHIUM PRIMARY BATTERY 审中-公开

    公开(公告)号：US20240339648A1

    公开(公告)日：2024-10-10

    申请号：US18293941

    申请日：2022-08-02

    申请人： Maxell, Ltd.

    发明人： Kyoji Tsuji ,  Keisuke Kawabe ,  Genyo Kaneko ,  Yuki Suwada

    IPC分类号： H01M10/04 ,  H01M4/02 ,  H01M4/06 ,  H01M4/38 ,  H01M4/50 ,  H01M6/16 ,  H01M50/107

    CPC分类号： H01M10/0431 ,  H01M4/06 ,  H01M4/382 ,  H01M4/502 ,  H01M6/16 ,  H01M50/107 ,  H01M2004/027

    摘要： A cylindrical lithium primary battery includes an electrode body that is configured such that a positive electrode and a negative electrode are spirally wound with a separator interposed therebetween. The positive electrode includes a positive electrode current collector and positive electrode mixture layers that are disposed on both surfaces of the positive electrode current collector and contain manganese dioxide as a positive electrode active material. The negative electrode includes a negative electrode current collector and two lithium layers that are disposed on one surface of the negative electrode current collector and spaced 6 to 12 mm apart in the longitudinal direction. The negative electrode is wound in such a manner that the negative electrode is folded back so that the folded negative electrode current collector overlaps itself, and the inner peripheral ends of the two lithium layers are respectively located outside the winding center.

    Secondary Battery
    5.
    发明公开
    Secondary Battery 审中-公开

    公开(公告)号：US20240136577A1

    公开(公告)日：2024-04-25

    申请号：US18010817

    申请日：2022-11-16

    申请人： SHENZHEN CAPCHEM TECHNOLOGY CO., LTD.

    发明人： Yonghong Deng ,  Yunxian Qian ,  Shiguang Hu ,  Xionggui Lin ,  Hongmei Li

    IPC分类号： H01M10/0567 ,  H01M4/50 ,  H01M10/42

    CPC分类号： H01M10/0567 ,  H01M4/502 ,  H01M10/4235 ,  H01M10/0525

    摘要： In order to solve the problem that the existing manganese-based positive electrode material battery has insufficient high-temperature cycle and high-temperature storage performances due to the dissolution of manganese ions, the present application provides a secondary battery, comprising a positive electrode, a negative electrode and a non-aqueous electrolyte, the positive electrode comprises a positive electrode material layer containing a positive electrode active material, the positive electrode active material comprises a manganese-based material, and the non-aqueous electrolyte comprises a solvent, an electrolyte salt and an additive, and the additive comprises a compound represented by structural formula 1:




    the secondary battery meets the following requirements:


    0.05≤100×W×u/(q×s)≤5;



    and 2.0 g/Ah≤W≤4.5 g/Ah, 0.05%≤u≤3.5%, 5%≤q≤65%, 10 mg/cm2≤s≤30 mg/cm2.

    The secondary battery has a high capacity retention rate in the cycle and high-temperature storage processes, and has good cycle and storage performances.

    Alkaline battery
    9.
    发明授权
    Alkaline battery 有权

    公开(公告)号：US11888163B2

    公开(公告)日：2024-01-30

    申请号：US17372523

    申请日：2021-07-12

    申请人： FDK CORPORATION

    发明人： Takuro Manabe ,  Yuya Suzuki ,  Toshiaki Nakano

    IPC分类号： H01M50/00 ,  H01M4/62 ,  H01M50/469 ,  H01M4/42 ,  H01M4/50 ,  H01M6/08

    CPC分类号： H01M4/623 ,  H01M4/42 ,  H01M4/50 ,  H01M6/08 ,  H01M50/469

    摘要： An alkaline battery includes a bottomed tubular battery can made of metal, serving as a positive electrode current collector; a positive electrode mixture sealed in the battery can and formed in a cylindrical shape, the positive electrode mixture containing manganese dioxide as a positive electrode active material and containing a binder including fluorine resin such that a ratio of the binder to the positive electrode active material is 0.2 wt % or more and 0.8 wt % or less; a bottomed tubular separator sealed in the battery can and arranged on an inner peripheral side of the positive electrode mixture; a gel-form negative electrode mixture sealed in the battery can, arranged inside the separator, containing zinc powder as a negative electrode active material; and an electrolyte that includes an alkaline aqueous solution, sealed in the battery can.