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公开(公告)号：US11569503B2
公开(公告)日：2023-01-31
申请号：US15654623
申请日：2017-07-19
发明人： Jongmin Kim , Jiyoon Kim , Pilsang Yun , Donggyu Chang , Kwanghwan Cho , Jangsuk Hyun , Jinhwa Kim
IPC分类号： H01M4/525 , C01G53/00 , H01M4/485 , H01M10/052 , H01M4/02
摘要： A nickel-based active material for a lithium secondary battery, a method of preparing the nickel-based active material, and a lithium secondary battery including a positive electrode including the nickel-based active material, the nickel-based active material comprising a secondary particle having an outer portion with a radially arranged structure and an inner portion with an irregular porous structure, wherein the inner portion of the secondary particle has a larger pore size than the outer portion of the secondary particle.
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公开(公告)号：US10957897B2
公开(公告)日：2021-03-23
申请号：US15824829
申请日：2017-11-28
发明人： Yumi Song , Seonyoung Kwon , Kihyun Kim , Soohyeon Kim , Jinhwa Kim , Joongho Moon , Jaeho Lee , Kwanghwan Cho , Soonbong Choi , Mingzi Hong
IPC分类号： H01M4/131 , H01M4/133 , H01M4/36 , H01M4/485 , H01M4/505 , H01M4/525 , H01M4/66 , H01M10/052 , H01M10/0525 , H01M4/02 , C01B32/22
摘要： A composite cathode active material, a cathode including the composite cathode active material, and a lithium battery including the cathode are provided. The composite cathode active material includes a core including a lithium metal oxide and a coating layer on the core, wherein the lithium metal oxide includes two or more transition metals including nickel (Ni), an amount of Ni within one mole of the two or more transition metals included in the lithium metal oxide is about 0.65 mol or greater, the coating layer includes LiF, and a resistance of the composite cathode active material is lower than that of the core.
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公开(公告)号：US11239456B2
公开(公告)日：2022-02-01
申请号：US16663105
申请日：2019-10-24
发明人： Yumi Song , Seonyoung Kwon , Kihyun Kim , Soohyeon Kim , Jinhwa Kim , Joongho Moon , Jaeho Lee , Kwanghwan Cho , Soonbong Choi , Mingzi Hong
IPC分类号： H01M4/131 , H01M4/133 , H01M4/36 , H01M4/485 , H01M4/505 , H01M4/525 , H01M4/66 , H01M10/052 , H01M10/0525 , H01M4/02 , C01B32/22
摘要： A composite cathode active material, a cathode including the composite cathode active material, and a lithium battery including the cathode are provided. The composite cathode active material includes a core including a lithium metal oxide and a coating layer on the core, wherein the lithium metal oxide includes two or more transition metals including nickel (Ni), an amount of Ni within one mole of the two or more transition metals included in the lithium metal oxide is about 0.65 mol or greater, the coating layer includes LiF, and a resistance of the composite cathode active material is lower than that of the core.
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公开(公告)号：US11075367B2
公开(公告)日：2021-07-27
申请号：US15824829
申请日：2017-11-28
发明人： Yumi Song , Seonyoung Kwon , Kihyun Kim , Soohyeon Kim , Jinhwa Kim , Joongho Moon , Jaeho Lee , Kwanghwan Cho , Soonbong Choi , Mingzi Hong
IPC分类号： H01M4/131 , H01M4/133 , H01M4/36 , H01M4/485 , H01M4/505 , H01M4/525 , H01M4/66 , H01M10/052 , H01M10/0525 , H01M4/02 , C01B32/22
摘要： A composite cathode active material, a cathode including the composite cathode active material, and a lithium battery including the cathode are provided. The composite cathode active material includes a core including a lithium metal oxide and a coating layer on the core, wherein the lithium metal oxide includes two or more transition metals including nickel (Ni), an amount of Ni within one mole of the two or more transition metals included in the lithium metal oxide is about 0.65 mol or greater, the coating layer includes LiF, and a resistance of the composite cathode active material is lower than that of the core.
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公开(公告)号：US20240079585A1
公开(公告)日：2024-03-07
申请号：US18505945
申请日：2023-11-09
发明人： Kwanghwan Cho , Moonsu Yoon , Jaephil Cho
IPC分类号： H01M4/525 , C01G53/00 , H01M4/04 , H01M4/505 , H01M10/0525
CPC分类号： H01M4/525 , C01G53/50 , H01M4/04 , H01M4/505 , H01M10/0525 , C01P2002/72 , C01P2002/74 , C01P2004/03 , C01P2004/04 , C01P2004/24 , C01P2004/64 , C01P2004/80 , C01P2006/40 , H01M2004/028
摘要： This application relates to a composite positive electrode active material for a lithium secondary battery. The composite positive electrode active material includes a nickel-based active material and a cobalt-boron compound-containing coating layer formed on a surface of the nickel-based active material. The application also relates to a method of preparation of the composite positive electrode active material. The application further relates to a lithium secondary battery including a positive electrode containing the composite positive electrode active material.
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公开(公告)号：US20230163298A1
公开(公告)日：2023-05-25
申请号：US18158274
申请日：2023-01-23
发明人： Jongmin Kim , Jiyoon Kim , Pilsang Yun , Donggyu Chang , Kwanghwan Cho , Jangsuk Hyun , Jinhwa Kim
IPC分类号： H01M4/525 , C01G53/00 , H01M4/485 , H01M10/052
CPC分类号： H01M4/525 , C01G53/50 , H01M4/485 , H01M10/052 , C01P2002/72 , C01P2004/50 , C01P2006/12 , C01P2006/40 , C01P2006/16 , C01P2002/85 , C01P2004/03 , C01P2004/90 , H01M2004/021
摘要： A nickel-based active material for a lithium secondary battery, a method of preparing the nickel-based active material, and a lithium secondary battery including a positive electrode including the nickel-based active material, the nickel-based active material comprising a secondary particle having an outer portion with a radially arranged structure and an inner portion with an irregular porous structure, wherein the inner portion of the secondary particle has a larger pore size than the outer portion of the secondary particle.
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公开(公告)号：US10707485B2
公开(公告)日：2020-07-07
申请号：US15654648
申请日：2017-07-19
发明人： Jongmin Kim , Jiyoon Kim , Pilsang Yun , Donggyu Chang , Kwanghwan Cho , Jangsuk Hyun , Jinhwa Kim
摘要： Provided are a nickel-based active material, a method of preparing the same, and a lithium secondary battery including a positive electrode including the nickel-based active material. The nickel-based active material includes at least one secondary particle including an aggregate of two or more primary particles, wherein at least a portion of the secondary particle has a radial array structure, and a hetero-element compound is positioned between the primary particles.
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公开(公告)号：US12107268B2
公开(公告)日：2024-10-01
申请号：US17192711
申请日：2021-03-04
发明人： Kwanghwan Cho , Moonsu Yoon , Jaephil Cho
CPC分类号： H01M4/525 , C01G53/50 , H01M4/04 , H01M4/505 , H01M10/0525 , C01P2002/72 , C01P2002/74 , C01P2004/03 , C01P2004/04 , C01P2004/24 , C01P2004/64 , C01P2004/80 , C01P2006/40 , H01M2004/028
摘要： This application relates to a composite positive electrode active material for a lithium secondary battery. The composite positive electrode active material includes a nickel-based active material and a cobalt-boron compound-containing coating layer formed on a surface of the nickel-based active material. The application also relates to a method of preparation of the composite positive electrode active material. The application further relates to a lithium secondary battery including a positive electrode containing the composite positive electrode active material.
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公开(公告)号：US20230282825A1
公开(公告)日：2023-09-07
申请号：US18316175
申请日：2023-05-11
发明人： Jongmin Kim , Jiyoon Kim , Pilsang Yun , Donggyu Chang , Kwanghwan Cho , Jangsuk Hyun , Jinhwa Kim
IPC分类号： H01M4/525 , C01G53/00 , H01M4/485 , H01M10/052
CPC分类号： H01M4/525 , C01G53/50 , H01M4/485 , H01M10/052 , C01P2002/72 , C01P2002/85 , C01P2004/03 , C01P2004/50 , C01P2004/90 , C01P2006/12 , C01P2006/16 , C01P2006/40 , H01M2004/021
摘要： A nickel-based active material for a lithium secondary battery, a method of preparing the nickel-based active material, and a lithium secondary battery including a positive electrode including the nickel-based active material, the nickel-based active material comprising a secondary particle having an outer portion with a radially arranged structure and an inner portion with an irregular porous structure, wherein the inner portion of the secondary particle has a larger pore size than the outer portion of the secondary particle.
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公开(公告)号：US10283770B2
公开(公告)日：2019-05-07
申请号：US14972216
申请日：2015-12-17
发明人： Kwanghwan Cho , Jaephil Cho , Hyejung Kim
IPC分类号： H01M4/525 , H01M4/36 , C01G53/00 , H01M10/052
摘要： A composite cathode active material, including a nickel-based lithium transition metal oxide secondary particle, the nickel-based lithium transition metal oxide secondary particle including a coating layer containing lithium and cobalt on a surface of a primary particle of the secondary particle.
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