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1.发明公开公开(公告)号：US20240322120A1
公开(公告)日：2024-09-26
申请号：US18518034
申请日：2023-11-22
发明人： Jinhyon Lee , Ilkyong Kwon , Hyun Nam , Donggeun Lee , Ahram Pyun , Yeonhee Yoon , Youmin Bang , Seunguk Kwon , Jongsup Choi , Seongdae Kim
IPC分类号： H01M4/139 , H01M4/134 , H01M10/0525 , H01M10/14
CPC分类号： H01M4/139 , H01M4/134 , H01M10/0525 , H01M10/14
摘要： A method of preparing a dry electrode, a device for manufacturing a dry electrode, a dry electrode, and a lithium battery are provided. The method includes supplying a metal layer at a first speed, supplying a dry electrode film at a second speed while supplying the dry electrode film intermittently at a third speed less than the second speed, and forming a dry electrode active material layer by intermittently disposing the dry electrode film on at least one side (e.g., one side or both opposite sides) of the metal layer, wherein the dry electrode film is disposed on the metal layer while the dry electrode film is being supplied at the second speed, and the dry electrode film is not disposed on the metal layer while the dry electrode film is being supplied at the third speed.
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公开(公告)号：US20240322112A1
公开(公告)日：2024-09-26
申请号：US18485162
申请日：2023-10-11
发明人： Hyun Nam , Jinhyon Lee , Ahram Pyun , Ilkyong Kwon , Yeonhee Yoon , Donggeun Lee , Seongdae Kim , Seunguk Kwon , Youmin Bang , Jongsup Choi
IPC分类号： H01M4/04 , H01M4/131 , H01M4/1391 , H01M4/62 , H01M4/66 , H01M10/0525
CPC分类号： H01M4/0435 , H01M4/131 , H01M4/1391 , H01M4/623 , H01M4/661 , H01M4/663 , H01M4/667 , H01M10/0525
摘要： A method of preparing a dry electrode film, the dry electrode film, a dry electrode including the dry electrode film, and a lithium battery including the dry electrode film is provided. The method includes providing frozen first dry binder particles, pulverizing the frozen first dry binder particles to prepare second dry binder particles, mixing a dry electrode active material and the second dry binder particles to prepare a dry electrode mixture, and processing the dry electrode mixture into a dry electrode film including a dry binder through a rolling device including a calender roll. A second particle diameter of the second dry binder particles is less than a first particle diameter of the frozen first dry binder particles.
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公开(公告)号：US20240322398A1
公开(公告)日：2024-09-26
申请号：US18614259
申请日：2024-03-22
发明人： Seunguk Kwon , Jinhyon Lee , Ahram Pyun , Hyun Nam , Yeonhee Yoon , Jongsup Choi , Youmin Bang , Seongdae Kim , Donggeun Lee , Ilkyong Kwon
IPC分类号： H01M50/531 , H01M4/62 , H01M10/052
CPC分类号： H01M50/531 , H01M4/621 , H01M4/625 , H01M10/052
摘要： Provided herein are an electrode and a lithium battery including the same. The electrode includes an electrode current collector, a metal lead including a first region provided on the electrode current collector and a second region protruding outward from the electrode current collector, and an electrode active material layer provided on the electrode current collector. The electrode active material layer covers at least a portion of a side surface A of the first region of the metal lead.
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公开(公告)号：US20240322136A1
公开(公告)日：2024-09-26
申请号：US18614480
申请日：2024-03-22
发明人： Donggeun Lee , Yeonhee Yoon , Seongdae Kim , Jinhyon Lee , Ilkyong Kwon , Hyun Nam , Ahram Pyun
IPC分类号： H01M4/36 , H01M4/62 , H01M4/66 , H01M10/052
CPC分类号： H01M4/366 , H01M4/621 , H01M4/625 , H01M4/661 , H01M10/052
摘要： A dry electrode film, and a dry electrode and a lithium battery that includes the dry electrode film, wherein the dry electrode film includes a first dry electrode active material layer including a first dry electrode active material and a first dry binder fibrillized in a first direction, and a second dry electrode active material layer disposed on a surface of the first dry electrode active material layer and including a second dry electrode active material and a second dry binder fibrillized in a second direction that is different from the first direction, wherein the dry electrode film is a self-standing film.
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公开(公告)号：US20240304796A1
公开(公告)日：2024-09-12
申请号：US18484880
申请日：2023-10-11
发明人： Yeonhee Yoon , Jinhyon Lee , Hyun Nam , Ahram Pyun , Ilkyong Kwon , Donggeun Lee , Seongdae Kim
CPC分类号： H01M4/366 , H01M4/139 , H01M4/623 , H01M4/625 , H01M2004/021
摘要： A method of preparing a dry electrode includes arranging at least one interlayer on at least one surface an electrode current collector to prepare a first stack, arranging a dry electrode film, which has an area larger than an area of the interlayer, on the first stack to prepare a second stack, wherein the dry electrode film includes a first region on the interlayer and a second region extending from the first region beyond an outer periphery of the interlayer, and pulling at least a portion of the second region of the dry electrode film to separate the second region from the first region and provide a dry electrode, wherein the dry electrode film has anisotropic tensile strength, and the dry electrode includes a dry electrode active material layer on the interlayer, but the dry electrode active material layer disposed directly on the electrode current collector is absent.
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6.发明公开公开(公告)号：US20230187637A1
公开(公告)日：2023-06-15
申请号：US18065892
申请日：2022-12-14
发明人： Ilkyong Kwon , Hyun Nam , Yeonhee Yoon , Donggeun Lee , Jinhyon Lee , Ahram Pyun
CPC分类号： H01M4/583 , H01M4/0435 , H01M4/133 , H01M4/1393 , H01M4/623 , H01M4/661
摘要： An electrode, a lithium battery including the same, and a method of manufacturing the electrode. The electrode includes an electrode current collector, and an electrode active material layer on at least one surface of the electrode current collector, wherein the electrode active material layer includes a first electrode active material, a second electrode active material, and a binder, the electrode active material layer includes a first cluster, and the first cluster is an agglomerate including a plurality of first electrode active materials, one surface of the electrode active material layer includes a first domain including the first cluster, and an area of the first domain is about 15% to about 60% of the total area of the one surface of the electrode active material layer.
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公开(公告)号：US20240322118A1
公开(公告)日：2024-09-26
申请号：US18614549
申请日：2024-03-22
发明人： Ahram Pyun , Jinhyon Lee , Hyun Nam , Seunguk Kwon , Ilkyong Kwon , Yeonhee Yoon , Donggeun Lee , Youmin Bang , Seongdae Kim , Jongsup Choi
IPC分类号： H01M4/13 , H01M4/74 , H01M10/0525 , H01M50/531
CPC分类号： H01M4/13 , H01M4/74 , H01M10/0525 , H01M50/531
摘要： A dry electrode and a lithium battery including the same are provided. The dry electrode includes a first dry electrode film, a second dry electrode film opposite to the first dry electrode film, and a metal substrate between the first dry electrode film and the second dry electrode film, wherein the metal substrate includes a mesh area including a plurality of through-areas.
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公开(公告)号：US20240322113A1
公开(公告)日：2024-09-26
申请号：US18607235
申请日：2024-03-15
发明人： Seongdae Kim , Jinhyon Lee , Hyun Nam , Ahram Pyun , Ilkyong Kwon , Donggeun Lee , Yeonhee Yoon
CPC分类号： H01M4/0435 , H01M4/48 , H01M4/625 , H01M4/661 , H01M4/667 , H01M2004/021
摘要： A method of preparing a dry electrode film, a dry electrode, and a lithium battery are provided. The method includes providing a dry mixture including a dry electrode active material and a dry binder, and processing the dry mixture into a dry electrode film by utilizing a rolling device including a first calender roll and a second calender roll, where the first calender roll has a first rotational speed, and the second calender roll has a second rotational speed, a ratio of the first rotational speed to the second rotational speed is in a range of 1: greater than 1 to about 1:6, the dry electrode active material includes a first electrode active material and a second electrode active material, and a particle diameter of the first electrode active material is different from a particle diameter of the second electrode active material.
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公开(公告)号：US20230246202A1
公开(公告)日：2023-08-03
申请号：US18105096
申请日：2023-02-02
发明人： Jinhyon Lee , Ilkyong Kwon , Hyun Nam , Donggeun Lee , Ahram Pyun
IPC分类号： H01M4/88 , H01M4/62 , H01M4/66 , H01M4/04 , H01M10/0525
CPC分类号： H01M4/8875 , H01M4/623 , H01M4/663 , H01M4/0435 , H01M10/0525
摘要： An electrode, a lithium secondary battery including the same, and a method of preparing the electrode are provided. The electrode includes an electrode active material layer including an electrode active material and a binder, and having a plurality of through-holes; an electrode current collector on one surface of the electrode active material layer or between two surfaces of the electrode active material layer; and an interlayer between the electrode active material layer and the electrode current collector, wherein the electrode active material layer is a self-standing film and the plurality of through-holes included in the electrode active material layer extend to the interlayer.
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10.发明公开公开(公告)号：US20240322168A1
公开(公告)日：2024-09-26
申请号：US18615928
申请日：2024-03-25
发明人： Jinhyon Lee , Yeonhee Yoon , Seongdae Kim , Ilkyong Kwon , Hyun Nam , Donggeun Lee , Ahram Pyun
CPC分类号： H01M4/583 , H01M4/364 , H01M4/505 , H01M4/525 , H01M4/623 , H01M4/625 , H01M10/052 , H01M2004/021
摘要： A dry electrode film, a dry electrode including the same, and a lithium battery including the dry electrode are provided. The dry electrode film includes a dry electrode active material, a dry binder, and a nitrogen-containing anion, a nitrile group-containing compound, or a combination thereof, wherein the dry electrode active material includes a core and a shell conforming to a surface of the core, the shell includes at least one first metal oxide and a first carbonaceous material, the first metal oxide is in a matrix of the first carbonaceous material, and the first metal oxide is represented by MaOb (0
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