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    LITHIUM SECONDARY BATTERY
    1.
    发明公开
    LITHIUM SECONDARY BATTERY 审中-公开

    公开(公告)号：US20230420658A1

    公开(公告)日：2023-12-28

    申请号：US18335604

    申请日：2023-06-15

    申请人： SK ON CO., LTD.

    发明人： Ji Hyung KIM ,  Young Ha KIM ,  Sang Bin LEE ,  Ho Jin HWANG

    IPC分类号： H01M4/36 ,  H01M10/0525 ,  H01M4/525

    CPC分类号： H01M4/366 ,  H01M10/0525 ,  H01M4/525 ,  H01M2004/021

    摘要： A lithium secondary battery includes a cathode including a cathode current collector and a cathode active material layer formed on the cathode current collector, and an anode including an anode current collector and an anode active material layer formed on the anode current collector. The anode active material layer has an area larger than that of the cathode active material layer. The cathode active material layer includes a central portion and an outer portion surrounding the central portion, and the outer portion has a specific capacity less than that of the central portion.

    RECHARGEABLE-BATTERY CELL
    4.
    发明公开
    RECHARGEABLE-BATTERY CELL 审中-公开

    公开(公告)号：US20230299398A1

    公开(公告)日：2023-09-21

    申请号：US18098111

    申请日：2023-01-18

    申请人： SK On Co., Ltd.

    发明人： Young Ha KIM ,  Ji Hyung KIM ,  Sang Bin LEE ,  Ho Jin HWANG

    IPC分类号： H01M50/184 ,  H01M50/186 ,  H01M50/30

    CPC分类号： H01M50/184 ,  H01M50/186 ,  H01M50/30

    摘要： A rechargeable-battery cell includes: an electrode assembly including a first electrode plate, a separator, and a second electrode plate; an electrode lead portion connected to a first or second uncoated electrode portion extending from the first or second electrode plate of the electrode assembly; a sealing member through which the electrode lead portion passes; and an exterior material from which portions of the sealing member and the electrode lead portion are externally exposed and in which the electrode structure is disposed, wherein the sealing member has the same thickness as or a thickness smaller than that of the electrode assembly.

    LITHIUM SECONDARY BATTERY
    6.
    发明公开
    LITHIUM SECONDARY BATTERY 审中-公开

    公开(公告)号：US20240088361A1

    公开(公告)日：2024-03-14

    申请号：US18513638

    申请日：2023-11-20

    申请人： SK ON CO., LTD.

    发明人： Ji Hyung KIM ,  Young Ha KIM ,  Sang Bin LEE ,  Ho Jin HWANG

    IPC分类号： H01M4/36 ,  H01M4/525 ,  H01M10/0525

    CPC分类号： H01M4/366 ,  H01M4/525 ,  H01M10/0525 ,  H01M2004/021

    摘要： A lithium secondary battery includes a cathode including a cathode current collector and a cathode active material layer formed on the cathode current collector, and an anode including an anode current collector and an anode active material layer formed on the anode current collector. The anode active material layer has an area larger than that of the cathode active material layer. The cathode active material layer includes a central portion and an outer portion surrounding the central portion, and the outer portion has a specific capacity less than that of the central portion.

    SECONDARY BATTERY
    7.
    发明公开
    SECONDARY BATTERY 审中-公开

    公开(公告)号：US20230231282A1

    公开(公告)日：2023-07-20

    申请号：US17988467

    申请日：2022-11-16

    申请人： SK ON CO., LTD.

    发明人： Ji Hyung KIM ,  Young Ha KIM ,  Sang Bin LEE ,  Ho Jin HWANG

    IPC分类号： H01M50/533 ,  H01M50/46 ,  H01M50/536 ,  H01M50/244 ,  H01M50/102

    CPC分类号： H01M50/533 ,  H01M50/46 ,  H01M50/536 ,  H01M50/244 ,  H01M50/102

    摘要： A secondary battery includes an electrode assembly including a first electrode plate, a separator, and a second electrode plate, a lower case in which the electrode assembly is accommodated and electrode tabs are provided on sidewalls opposing each other, an upper case coupled to the lower case, and an outer casing disposed to surround the lower case and the upper case. The electrode assembly is provided with a first uncoated electrode portion extending from the first electrode plate and a second uncoated electrode portion extending from the second electrode plate, and the first and second uncoated electrode portions are bent and connected to the electrode tab of the lower case.

    SECONDARY BATTERY
    9.
    发明公开
    SECONDARY BATTERY 审中-公开

    公开(公告)号：US20230187739A1

    公开(公告)日：2023-06-15

    申请号：US17994111

    申请日：2022-11-25

    申请人： SK On Co., Ltd.

    发明人： Young Ha KIM ,  Ji Hyung KIM ,  Sang Bin LEE ,  Ho Jin HWANG

    IPC分类号： H01M50/105 ,  H01M50/46 ,  H01M50/178 ,  H01M50/54

    CPC分类号： H01M50/105 ,  H01M50/46 ,  H01M50/178 ,  H01M50/54

    摘要： A secondary battery includes: a plurality of electrode assemblies, each of the plurality of electrode assemblies comprising a positive electrode, a negative electrode, and a separator; a plurality of electrode tabs formed to be extended from the electrode assemblies; a plurality of electrode leads electrically connected to the plurality of electrode tabs; and a pouch accommodating the plurality of electrode assemblies. In the plurality of electrode assemblies, the electrode tabs of the same electrodes are electrically connected to each other, and the plurality of electrode leads comprises three or more electrode leads.

    POUCH TYPE RECHARGEABLE-BATTERY
    10.
    发明申请
    POUCH TYPE RECHARGEABLE-BATTERY 有权

    公开(公告)号：US20230099793A1

    公开(公告)日：2023-03-30

    申请号：US17829782

    申请日：2022-06-01

    申请人： SK On Co., Ltd.

    发明人： Ho Jin HWANG ,  Young Ha KIM ,  Ji Hyung KIM ,  Sang Bin LEE

    IPC分类号： H01M50/178 ,  H01M50/105 ,  H01M50/186 ,  H01M10/0525

    摘要： A pouch-type secondary battery includes an electrode assembly including a first electrode plate, a separator, and a second electrode plate; and a pouch film in which the electrode assembly is accommodated, wherein the pouch film includes an accommodation portion in which the electrode assembly is accommodated, and a terrace portion extending from the accommodation portion to an outside of the accommodation portion, the terrace portion includes a first side portion through and from which a negative electrode lead connected to the electrode assembly passes and protrudes, a second side portion through and from which a positive electrode lead connected to the electrode assembly passes and protrudes, and an upper end portion having both end portions connected to the first and second side portions, and folding portions folded toward the upper end portion are provided on ends of the first and second side portions.