-
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：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.
-
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.-
5.发明公开
公开(公告)号：EP4266404A1
公开(公告)日：2023-10-25
申请号：EP21906876.4
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
IPC分类号： H01M4/36 , H01M4/525 , H01M4/505 , H01M4/62 , H01M10/052
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, Li 2 CO 3 and Li 2 SO 4 , and the second coating material is a needle-like material.
-
6.发明公开
公开(公告)号：EP3890071A1
公开(公告)日：2021-10-06
申请号：EP19889609.4
申请日：2019-11-29
IPC分类号： H01M4/525 , H01M4/505 , H01M10/052
摘要： A positive active material for a lithium secondary battery and a lithium secondary battery including the same are provided, wherein the positive active material includes lithium, nickel, cobalt, manganese, and a doping element, and the doping element may include Zr, Al, and Ti.
-
7.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 .
-
8.发明公开
公开(公告)号：EP4037024A2
公开(公告)日：2022-08-03
申请号：EP20868827.5
申请日：2020-09-23
发明人： CHOI, Kwon Young , PARK, Inchul , PARK, Jong Il , PARK, Jung Woo , KIM, Young Sang , NAM, Sang Cheol
IPC分类号： H01M4/36 , H01M4/62 , H01M4/525 , H01M4/505 , 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.
According to an exemplary embodiment, it is possible to provide a positive electrode active material containing: a lithium metal oxide, and a coating layer positioned on the surface of the lithium metal oxide, and the coating layer comprises a first compound having a peak observed in the range of 1580 cm -1 to 1600 cm -1 when measured by FT-IR and an average transmittance of the peak in the 0.990 to 0.998 range.-
9.发明公开
公开(公告)号：EP4020630A1
公开(公告)日：2022-06-29
申请号：EP20854029.4
申请日：2020-08-13
发明人： NAM, Sang Cheol , CHOI, Kwon Young
摘要： The present exemplary embodiments relate to a cathode active material, a manufacturing method thereof, and a lithium secondary battery including the same. A cathode active material according to an exemplary embodiment is a lithium metal oxide particle in the form of a secondary particle including a primary particle, a coating layer including a boron compound is positioned on at least a portion of a surface of the primary particle, and the boron compound includes an amorphous structure.
-
10.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.
-
-
-
-
-
-
-
-
-
搜索结果
20 条记录 (耗时 0.026 秒)
