-
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%.
-
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-
3.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.
-
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 .
-
公开(公告)号：EP3734716A1
公开(公告)日：2020-11-04
申请号：EP18897184.0
申请日：2018-12-18
发明人： MIN, Sung Hwan , KIM, Jeong Han , SONG, Jung Hoon
摘要： The present invention relates to a positive active material for lithium secondary battery, its manufacturing method, and lithium secondary battery including the same, and it provides that a positive active material for lithium secondary battery, comprising: a core and a coating layer, wherein, the core is lithium metal oxide, the coating layer comprises boron, the boron compound in the coating layer comprises a lithium boron oxide and a boron oxide, the lithium boron oxide is included 70 wt% or more and 99 wt% in the entire coating layer, the lithium boron oxide comprises Li 2 B 4 O 7 , with respect to the lithium boron oxide 100wt%, the content of Li 2 B 4 O 7 is 55 wt% or more and 99 wt% or less.
-
6.发明公开
公开(公告)号：EP4266410A1
公开(公告)日：2023-10-25
申请号：EP21911455.0
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： KWON, Ohmin , CHOI, Kwon Young , LEE, Sanghyuk , SONG, Jung Hoon , PARK, Jong Il , NAM, Sang Cheol , PARK, Inchul , HWANGBO, Geun
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, Li 2 CO 3 and Li 2 SO 4 .
-
7.发明公开
公开(公告)号：EP3852173A1
公开(公告)日：2021-07-21
申请号：EP19859256.0
申请日：2019-09-16
IPC分类号： H01M4/36 , H01M4/525 , H01M4/505 , H01M10/052 , C01G53/00
摘要： A positive active material, a manufacturing method thereof, and a lithium secondary battery including the same are disclosed, and a positive active material including lithium metal oxide particles in a secondary particle form including primary particles, wherein the secondary particle surface includes planar primary particles with a narrow angle of 70 to 90° from among angles between a c axis of the primary particles and a straight line connecting a virtual point of a center of the primary particle and a center point of the secondary particle may be provided.
-
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.
-
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.
-
-
-
-
-
-
-
-
-
搜索结果
24 条记录 (耗时 0.017 秒)
