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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：US11335906B2
公开(公告)日：2022-05-17
申请号：US16437803
申请日：2019-06-11
发明人： Joongho Moon , Eunji Kang , Yurim Cha , Soonbong Choi
IPC分类号： H01M4/36 , H01M4/583 , H01M10/0525 , H01M4/60 , H01M4/02
摘要： A negative active material for a rechargeable lithium battery includes: a core including crystalline carbon; and a metal alkoxide on a surface of the core. A rechargeable lithium battery includes: a negative electrode including a negative active material including a core including crystalline carbon, and a metal alkoxide on a surface of the core; a positive electrode including a positive active material; and an electrolyte.
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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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