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1.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：US20240136515A1
公开(公告)日：2024-04-25
申请号：US18268033
申请日：2021-11-15
申请人： POSCO Holdings Inc. , RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY , POSCO CHEMICAL CO., LTD
发明人： Sanghyuk LEE , Jong II PARK , Jung Hoon SONG , Sang Cheol NAM , Kwon Young CHOI , Inchul PARK , Ohmin KWON
CPC分类号： H01M4/525 , H01M4/364 , H01M4/485 , H01M4/505 , H01M4/8885 , H01M10/052 , H01M2004/028
摘要： A positive electrode active material for a lithium secondary battery, a manufacturing method thereof, and a lithium secondary battery including the same, wherein the positive electrode active material is a lithium nickel-based compound particle having a Ni content of 75 mol % or more, and a difference in concentration of Al between the center and the surface in the lithium nickel-based compound particle is less than 1 mol %.
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3.发明公开公开(公告)号：US20240006594A1
公开(公告)日：2024-01-04
申请号：US18268046
申请日：2021-11-15
发明人： Ohmin KWON , Sang Cheol NAM , Kwon Young CHOI , Jung Hoon SONG , Sanghyuk LEE , Inchul PARK
CPC分类号： H01M4/366 , H01M4/525 , H01M4/505 , H01M10/052 , H01M4/5825 , H01M4/38 , C01G53/006 , C01G53/50 , C01P2004/03 , C01P2006/40
摘要： It relates to a positive electrode active material for a lithium secondary battery and a lithium secondary battery including the same, wherein the positive electrode active material for lithium secondary battery, comprising: a core containing a lithium nickel-based compound having a Ni content of 80 mol % or more; and a coating material positioned on at least a portion of the core surface; wherein, the coating material includes a first coating material containing at least one of group 5 elements and group 6 elements; and S; and a second coating material including B, LiOH, Li2CO3 and Li2SO4, and the second coating material is a needle-like material.
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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：US20240222619A1
公开(公告)日：2024-07-04
申请号：US18288691
申请日：2022-04-26
申请人： POSCO Holdings Inc. , RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY , POSCO CHEMICAL CO., LTD
发明人： Inchul PARK , Hyungsub KIM , Sanghyuk LEE , Jung Hoon SONG , Junghoon KIM , Kwon Young CHOI , Ohmin KWON , Sang Cheol NAM , Seok Hyun SONG
IPC分类号： H01M4/525 , C01G53/00 , H01M4/505 , H01M10/0525
CPC分类号： H01M4/525 , C01G53/50 , H01M4/505 , H01M10/0525 , C01P2002/72 , C01P2006/40 , C01P2006/80
摘要： Provided is a positive active material for a lithium secondary battery including a compound represented by the following formula 1, wherein, a molar content of lithium present in a structure of the positive active material, measured through neutron diffraction analysis, is 1.02 to 1.15 per mole of the positive active material, and a c-axis lattice constant variation ratio of the R-3m structure is less than 2.3% for charge and discharge in the 2.5 V to 4.25 V range, [Chemical Formula 1] Li1+a(NibM11-b)1-aO2 in formula 1 above, 0
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公开(公告)号：US20240047669A1
公开(公告)日：2024-02-08
申请号：US18268791
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： Jung Hoon SONG , Sang Cheol NAM , Sanghyuk LEE , Kwon Young CHOI , Inchul PARK , Ohmin KWON
IPC分类号： H01M4/525 , H01M4/505 , H01M10/052 , C01G53/00
CPC分类号： H01M4/525 , H01M4/505 , H01M10/052 , C01G53/50 , 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 two types of doping elements doped on the metal oxide particle is provided.
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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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公开(公告)号：US20240282950A1
公开(公告)日：2024-08-22
申请号：US18268756
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： Jung Hoon SONG , Sang Cheol NAM , Sanghyuk LEE , Kwon Young CHOI , Inchul PARK , Ohmin KWON
IPC分类号： H01M4/525 , C01G53/00 , H01M4/02 , H01M4/131 , H01M10/0525
CPC分类号： H01M4/525 , C01G53/50 , H01M4/131 , H01M10/0525 , C01P2002/52 , C01P2002/74 , C01P2004/62 , C01P2006/40 , 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 and manganese, and five types of doping elements doped on the metal oxide particles is provided.
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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)-
10.发明申请公开(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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