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公开(公告)号：EP4456184A1
公开(公告)日：2024-10-30
申请号：EP22911712.2
申请日：2022-12-09
申请人： POSCO Holdings Inc. , RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY , Posco Future M Co., Ltd
摘要： A positive active material for a lithium secondary battery according to an exemplary embodiment includes a lithium composite transition metal oxide and a surface layer formed on a particle surface of the lithium composite transition metal oxide, and a content of nickel (Ni) in the lithium composite transition metal oxide. is more than 0.85 mol, the surface layer contains cobalt (Co) and aluminum (Al), and in the surface layer, the distribution of the cobalt (Co) and aluminum (Al) components have different concentration gradients.
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公开(公告)号：EP4456189A1
公开(公告)日：2024-10-30
申请号：EP22911788.2
申请日：2022-12-16
申请人： POSCO Holdings Inc. , RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY , Posco Future M Co., Ltd
发明人： NAM, Sang Cheol , YU, Byong Yong , HONG, Kijoo , PARK, Jong Il , LEE, Sang Hyuk , CHOI, Kwon Young
摘要： The present exemplary embodiments relate to a positive active material for a lithium secondary battery, a positive electrode including the same, and a lithium secondary battery including the same. A positive active material for lithium secondary batteries according to an exemplary embodiment include:
a first metal oxide, which includes nickel, cobalt and manganese, is in single particle form; and a second metal oxide that contains nickel, cobalt, and manganese and is in the form of a secondary particle containing a plurality of primary particles and has an average particle diameter D50 larger than that of the first metal oxide; wherein, a nickel content of the second metal oxide is 0.8 mol or more, based on 1 mole of the total of nickel, cobalt and manganese in the second metal oxide, and a nickel content of the first metal oxide is 0.03 mole to 0.17 mole more than the nickel content of the second metal oxide.-
公开(公告)号：EP4456188A1
公开(公告)日：2024-10-30
申请号：EP22911780.9
申请日：2022-12-16
申请人： POSCO Holdings Inc. , RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY , Posco Future M Co., Ltd
发明人： YU, Byong Yong , HONG, Kijoo , SONG, Jung Hoon , LEE, Sanghyuk , CHOI, Kwon Young , HAN, Chang Joo , NAM, Sang Cheol
摘要： The present exemplary embodiments relate to a positive active material for a lithium secondary battery, a manufacturing method thereof, and a lithium secondary battery including the same. The positive active material for a lithium secondary battery according to an exemplary embodiment includes first lithium metal oxide that contains nickel, cobalt, manganese, and doping elements, is in the form of single particles, and has a unit cell volume of 101.50 Å or more.
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公开(公告)号：EP4266420A1
公开(公告)日：2023-10-25
申请号：EP21906878.0
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： LEE, Sanghyuk , PARK, Jong Il , SONG, Jung Hoon , NAM, Sang Cheol , CHOI, Kwon Young , PARK, Inchul , KWON, Ohmin
IPC分类号： H01M4/525 , H01M4/505 , C01G53/00 , H01M10/052
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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公开(公告)号：EP4333122A1
公开(公告)日：2024-03-06
申请号：EP22796086.1
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： PARK, Inchul , KIM, Hyungsub , LEE, Sanghyuk , SONG, Jung Hoon , KIM, Junghoon , CHOI, Kwon Young , KWON, Ohmin , NAM, Sang Cheol , SONG, Seok Hyun
IPC分类号： H01M4/525 , H01M4/505 , H01M10/052 , C01G53/00
摘要： It is related to a positive active material for a lithium secondary battery, comprising:
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] Li 1+a (Ni b M 1 1-b ) 1-a O 2
in formula 1 above, 0-
6.发明公开
公开(公告)号：EP4318665A1
公开(公告)日：2024-02-07
申请号：EP22781626.1
申请日：2022-03-30
申请人： POSCO Holdings Inc. , RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY , POSCO Chemical Co., Ltd
摘要： The present exemplary embodiments relate to positive electrode active materials. 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, where the metal oxide particle includes nickel, cobalt, manganese, and doping elements, and is composed of single particles, and the doping elements include two or more species selected from the group consisting of Zr, Al, B, P, La, Ta, Ti, W, Mo, Si, Ga, Zn, Nb, Ag, Sn, Bi, Au, Y, Ge, V, Cr, and Fe.
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公开(公告)号：EP4266405A1
公开(公告)日：2023-10-25
申请号：EP21906877.2
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： KWON, Ohmin , NAM, Sang Cheol , CHOI, Kwon Young , SONG, Jung Hoon , LEE, Sanghyuk , PARK, Inchul
摘要： A positive electrode active material for a lithium secondary battery, a manufacturing method thereof, and it is provided a positive electrode active material for a 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, Li 2 CO 3 and Li 2 SO 4 .
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公开(公告)号：EP4398338A1
公开(公告)日：2024-07-10
申请号：EP22865108.9
申请日：2022-09-02
申请人： POSCO Holdings Inc. , RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY , POSCO Chemical Co., Ltd
发明人： CHOI, Kwon Young , SONG, Jung Hoon , LEE, Sanghyuk , PARK, Inchul , KWON, Ohmin , YU, Byong Yong , HONG, Kijoo , NAM, Sang Cheol
摘要： The present exemplary embodiments relate to a positive electrode active material, its manufacturing method, 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 metal oxide particle comprising a central portion and a surface portion located on the surface of the central portion, wherein, the metal oxide particle includes nickel, cobalt, manganese, and doping elements and is composed of a single particle, and the metal oxide particle includes a crystal phase of layered structure belonging to the R-3m space group on the surface, and an average grain size is 1550Å or more.-
公开(公告)号：EP4266423A1
公开(公告)日：2023-10-25
申请号：EP21911452.7
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： SONG, Jung Hoon , NAM, Sang Cheol , LEE, Sanghyuk , CHOI, Kwon Young , PARK, Inchul , KWON, Ohmin
IPC分类号： H01M4/525 , H01M4/505 , H01M10/052
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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10.发明公开
公开(公告)号：EP4266421A1
公开(公告)日：2023-10-25
申请号：EP21911254.7
申请日：2021-11-17
申请人： POSCO Holdings Inc. , RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY , POSCO Chemical Co., Ltd
发明人： PARK, Inchul , KIM, Hyungsub , LEE, Sanghyuk , SONG, Jung Hoon , KIM, Junghoon , NAM, Sang Cheol , CHOI, Kwon Young , KWON, Ohmin , SONG, Seok Hyun
IPC分类号： H01M4/525 , H01M4/505 , H01M10/052 , C01G53/00
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.
[Chemical Formula 1] Li 1+a (Ni b M 1 1-b ) 1-a O 2
In the Chemical Formula 1, 0 1 is at least one element selected from Co, Mn, Al, Mg, Ca, Ti, V, Cr, Zr, Nb, Mo, and W.
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