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公开(公告)号：US20240297305A1
公开(公告)日：2024-09-05
申请号：US18268831
申请日：2021-12-13
申请人： POSCO Holdings Inc. , RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY , POSCO CHEMICAL CO., LTD
发明人： Jung Hoon SONG , Sang Cheol NAM , Sang Hyuk LEE , Kwon Young CHOI , Inchul PARK , Ohmin KWON
IPC分类号： H01M4/525 , H01M4/02 , H01M4/36 , H01M10/052
CPC分类号： H01M4/525 , H01M4/364 , H01M10/052 , H01M2004/021 , H01M2004/028
摘要： The present exemplary embodiments relate to a positive electrode active material and a lithium secondary battery including the same. According to an exemplary embodiment, a positive electrode active material for a lithium secondary battery including a metal oxide particle including nickel, cobalt, manganese and aluminum, and three types of doping elements doped on the metal oxide particle is provided.
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2.发明公开公开(公告)号：US20240270600A1
公开(公告)日：2024-08-15
申请号：US18268805
申请日：2021-12-20
申请人： POSCO Holdings Inc. , RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY , POSCO CHEMICAL CO., LTD
发明人： Ohmin KWON , Kwon Young CHOI , Sang Hyuk LEE , Jung Hoon SONG , Jong II PARK , Sang Cheol NAM , Inchul PARK , Geun HWANGBO
IPC分类号： C01G53/00 , H01M10/052
CPC分类号： C01G53/50 , H01M10/052 , C01P2002/01 , C01P2002/82 , C01P2002/85 , C01P2004/84
摘要： The present invention provides a positive electrode active material, its manufacturing method and a lithium secondary battery containing the same. The positive electrode active material for a lithium secondary battery of the present invention is a positive electrode active material for lithium secondary battery, comprising: a lithium metal oxide particle; and a coating layer positioned on at least part of the lithium metal oxide particle surface; wherein, the coating layer includes any one or more of group 5 elements and group 6 elements, B, LiOH, Li2CO3 and Li2SO4.
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公开(公告)号：US20230041710A1
公开(公告)日：2023-02-09
申请号：US17787191
申请日：2020-12-18
发明人： Kwon Young CHOI , Sang Cheol NAM , Sang Hyuk LEE , Inchul PARK , Jong Il PARK , Jung Hoon SONG , Ohmin KWON
摘要： Embodiments of the present invention relate to a cathode active material, a method for manufacturing the same, and a lithium secondary battery including the same.
According to an embodiment, a cathode active material can be provided, the cathode active material comprising: a lithium metal oxide including a core and a shell disposed on a surface of the core; and a coating layer disposed on a surface of the lithium metal oxide, wherein a c value that satisfies Equation 1 and is in a range of 0.3 to 0.7, and the core and the shell have a layered crystalline structure. c=b/a [Equation 1] (in Equation 1, a is a peak at 530 to 533 eV and b is a peak at 528 to 531 eV in an XPS spectrum of the coating layer)-
公开(公告)号：US20240313214A1
公开(公告)日：2024-09-19
申请号：US18268515
申请日：2021-11-17
发明人： Inchul PARK , Hyungsub KIM , Sang Hyuk LEE , Jung Hoon SONG , Junghoon KIM , Sang Cheol NAM , Kwon Young CHOI , Ohmin KWON , Seok Hyun SONG
IPC分类号： H01M4/525 , C01G53/00 , H01M4/02 , H01M4/131 , H01M10/052
CPC分类号： H01M4/525 , C01G53/006 , C01G53/50 , H01M4/131 , H01M10/052 , C01P2002/50 , C01P2002/72 , C01P2006/40 , H01M2004/028
摘要： It is related to a positive electrode active material for lithium secondary battery, comprising: a compound represented by Chemical Formula 1, wherein a molar content of lithium present in the structure of the positive electrode active material, measured through neutron diffraction analysis, is 1.01 to 1.15 for 1 mole of the positive electrode active material, a method of preparing it, and a lithium secondary battery including the same.
Li1+a(NibM11-b)1-aO2 [Chemical Formula 1]
In the Chemical Formula 1, 0-
公开(公告)号：US20240063385A1
公开(公告)日：2024-02-22
申请号：US18268764
申请日：2021-12-13
发明人： Sang Cheol NAM , Kwon Young CHOI , Jung Hoon SONG , Sang Hyuk LEE
CPC分类号： H01M4/525 , C01G53/04 , C01G53/42 , C01P2002/52 , C01P2006/12 , C01P2004/80 , C01P2006/40 , C01P2004/03 , C01P2004/04 , C01P2002/02 , C01P2002/60 , H01M2004/021
摘要： The present exemplary embodiments provide a positive electrode active material, a manufacturing method thereof, and a lithium secondary battery including the same. The positive electrode active material according to an exemplary embodiment is a metal oxide particle including a center and a surface portion positioned on the surface of the center, but the metal oxide particle is composed of a single particle, and the surface portion includes a film in which no peak is observed during XRD measurement.
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公开(公告)号：US20230042412A1
公开(公告)日：2023-02-09
申请号：US17787225
申请日：2020-12-18
发明人： Kwon Young CHOI , Sang Cheol AM , Jung Hoon SONG , Jong II PARK , Sang Hyuk LEE , Ohmin KWON , Inchul PARK
IPC分类号： H01M4/485 , H01M4/36 , H01M4/04 , H01M10/052
摘要： The present exemplary embodiments relate to a positive electrode active material, a manufacturing method thereof, and a lithium secondary battery including the same. A positive active material for a lithium secondary battery according to an exemplary embodiment is a lithium metal oxide particle in the form of secondary particles including a plurality of primary particles: a first coating layer positioned on at least a part of the surface of the primary particle, and a second coating layer positioned over at least a portion of the secondary particle surface, the first coating layer comprising a first niobium compound, the second coating layer comprising the first niobium compound and a second niobium compound having a composition different from the first niobium compound.
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公开(公告)号：US20210184213A1
公开(公告)日：2021-06-17
申请号：US16767699
申请日：2018-11-20
发明人： Jung Hoon SONG , Geun HWANGBO , Sang Cheol NAM , Sang Hyuk LEE , Do Hyeong KIM , Hye Won PARK
IPC分类号： H01M4/525 , H01M4/505 , H01M10/0525 , C01G53/00
摘要： The present disclosure relates to a positive active material for a lithium rechargeable battery, a manufacturing method thereof, and a lithium rechargeable battery including the positive active material, and it provides a positive active material which is a lithium composite metal oxide including nickel, cobalt, and manganese, and either has orientation in a direction of [001] with respect to an ND axis that is equal to or greater than 29% or has orientation in a direction of [120]+[210] with respect to an RD axis that is equal to or greater than 82% in the case of an EBSD analysis with a misorientation angle (Δg) that is equal to or less than 30 degrees.
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公开(公告)号：US20200099048A1
公开(公告)日：2020-03-26
申请号：US16473036
申请日：2017-12-22
发明人： Young Sang KIM , Do Hyeong KIM , Jung Hoon SONG , Junghoon KIM , Sang Cheol NAM , Sang Hyuk LEE , Jung Woo PARK
IPC分类号： H01M4/36 , H01M4/505 , H01M4/525 , H01M10/0525 , H01M4/485 , B01F9/08 , B01F15/02 , B05D1/02 , B05D3/02 , B05C5/02 , B05C9/10
摘要： A positive active material manufacturing method according to an exemplary embodiment of the present invention includes: a step of preparing a lithium-containing compound; a step of manufacturing a coating liquid including at least one coating element; a step of mixing the lithium-containing compound and the coating liquid to form a coating mixture of a clay or slurry state; and a step of agitating the coating mixture. Further, a manufacturing apparatus of a positive active material according to an exemplary embodiment includes a rotation container, a cover, a nozzle, and an agitation wing.
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公开(公告)号：US20230039543A1
公开(公告)日：2023-02-09
申请号：US17786888
申请日：2020-12-18
发明人： Ohmin KWON , Kwon Young CHOI , Sang Hyuk LEE , Jung Hoon SONG , Jong Il PARK , Sang Cheol NAM , Inchul PARK , Geun HWANGBO
摘要： Provided are a positive electrode active material for a lithium secondary battery, a method of preparing the same, and a lithium secondary battery including the same.
According to an exemplary embodiment, a positive electrode active material for a lithium secondary battery which includes lithium metal oxide particles and a coating layer placed on at least a part of a surface of the lithium metal oxide particles may be provided, wherein the coating layer includes B, LiOH, Li2CO3, and Li2SO4.-
公开(公告)号：US20230039367A1
公开(公告)日：2023-02-09
申请号：US17787006
申请日：2020-12-18
发明人： Sang Cheol NAM , Sang Hyuk LEE , Kwon Young CHOI , Jung Hoon SONG
IPC分类号： H01M4/505 , H01M4/525 , H01M10/052
摘要： The present exemplary embodiments relate to a positive electrode active material and a lithium secondary battery including the same. The positive active material for a lithium secondary battery according to an exemplary embodiment includes lithium metal oxide particles including lithium, nickel, cobalt, manganese and doping elements, and includes a first domain and a second domain inside the lithium metal oxide particles.
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