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公开(公告)号：US20180151876A1
公开(公告)日：2018-05-31
申请号：US15825767
申请日：2017-11-29
发明人： Jiyoon KIM , Jongmin KIM , Jaehyun SHIM , Donggyu CHANG
IPC分类号： H01M4/38 , H01M10/052 , H01M4/04
CPC分类号： H01M4/38 , H01M4/0471 , H01M4/131 , H01M4/1391 , H01M4/485 , H01M4/505 , H01M4/525 , H01M10/052 , H01M10/0525 , H01M2004/021 , H01M2004/028
摘要： Provided are 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 may include a secondary particle including an agglomerate of at least two plate primary particles, wherein at least a part of the secondary particle has a structure in which the plate primary particles are arranged radially, and a porosity of an exterior portion of the secondary particle is greater than that of an interior portion of the secondary particle.
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公开(公告)号：US20180026267A1
公开(公告)日：2018-01-25
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 , H01M4/485 , H01M10/052
CPC分类号： H01M4/525 , C01G53/50 , C01P2002/72 , C01P2002/85 , C01P2004/03 , C01P2004/50 , C01P2004/90 , C01P2006/12 , C01P2006/16 , C01P2006/40 , H01M4/485 , H01M10/052 , H01M2004/021 , H01M2004/028
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：US20210265628A1
公开(公告)日：2021-08-26
申请号：US17308940
申请日：2021-05-05
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：US20190173076A1
公开(公告)日：2019-06-06
申请号：US16209659
申请日：2018-12-04
发明人： Jongmin KIM , Jiyoon KIM , Jinhwa KIM
IPC分类号： H01M4/131 , H01M4/525 , H01M10/0525 , H01M4/1391 , H01M4/04 , H01M4/505
摘要： A positive active material for a rechargeable lithium battery includes a first positive active material including a secondary particle including at least two agglomerated primary particles, where at least one part of the primary particles has a radial arrangement structure, as well as a second positive active material having a monolith structure. The first and second positive active materials may both include nickel-based positive active materials. A method of preparing the positive active material, and a rechargeable lithium battery including a positive electrode including the positive active material are also provided.
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公开(公告)号：US20180026268A1
公开(公告)日：2018-01-25
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
IPC分类号： H01M4/525 , H01M4/485 , H01M10/052
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：US20210043920A1
公开(公告)日：2021-02-11
申请号：US17073124
申请日：2020-10-16
发明人： Jongmin KIM , Jiyoon KIM , Jinhwa KIM
IPC分类号： H01M4/131 , H01M4/525 , H01M10/0525 , H01M4/04 , H01M4/505 , H01M4/1391 , H01M4/36
摘要： A positive active material for a rechargeable lithium battery includes a first positive active material including a secondary particle including at least two agglomerated primary particles, where at least one part of the primary particles has a radial arrangement structure, as well as a second positive active material having a monolith structure. The first and second positive active materials may both include nickel-based positive active materials. A method of preparing the positive active material, and a rechargeable lithium battery including a positive electrode including the positive active material are also provided.
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