-
1.发明公开
公开(公告)号：EP4350805A2
公开(公告)日：2024-04-10
申请号：EP23193527.1
申请日：2023-08-25
发明人： LEE, Yong Seok , JEUN, Jeong Hoon , KIM, Jae Ram , MIN, Jae Yun , EOM, Ki Joo , LEE, Myung Ro , JANG, Hyun Joong , CHOI, Je Nam
摘要： A cathode for a lithium secondary battery includes a cathode current collector, and a cathode active material layer formed on the cathode current collector. The cathode active material layer includes cathode active material particles. The cathode active material particles includes a lithium metal oxide particle containing nickel and having a mole fraction of cobalt of 0.02 or less among all elements except lithium and oxygen.
-
公开(公告)号：EP4261911A2
公开(公告)日：2023-10-18
申请号：EP23164849.4
申请日：2023-03-28
IPC分类号： H01M4/02 , H01M4/131 , H01M4/525 , H01M10/052 , H01M10/44 , H01M4/1391
摘要： A cathode for a lithium secondary battery according to an embodiment of the present invention includes a cathode current collector, and a cathode active material layer on the cathode current collector. The cathode active material layer includes cathode active material particles. The cathode active material particles include first lithium metal oxide particles having a shape of a secondary particle in which a plurality of primary particles are aggregated, and second lithium metal oxide particles having a shape of a single particle. A closed pore ratio of the cathode active material layer is 5% or less.
-
3.发明公开
公开(公告)号：EP4369433A1
公开(公告)日：2024-05-15
申请号：EP23191885.5
申请日：2023-08-17
发明人： LEE, Yong Seok , JEUN, Jeong Hoon , KIM, Jae Ram , MIN, Jae Yun , EOM, Ki Joo , LEE, Myung Ro , JANG, Hyun Joong , CHOI, Je Nam
CPC分类号： H01M2004/02820130101 , H01M4/0404 , H01M4/043 , H01M4/131 , H01M4/525 , H01M4/505 , H01M4/621 , H01M4/624 , H01M10/0525
摘要： A cathode for a lithium secondary battery according to exemplary embodiments may include a cathode current collector and a cathode active material layer which is formed on the cathode current collector, includes cathode active material particles and satisfies a specific equation. The cathode active material particles may include lithium metal oxide particles which contain nickel and have a mole fraction of cobalt of 0.02 or less of all elements except for lithium and oxygen.
-
4.发明公开
公开(公告)号：EP4397627A1
公开(公告)日：2024-07-10
申请号：EP23220233.3
申请日：2023-12-27
发明人： PARK, Young Uk , KANG, Min Gu , KIM, Seung Hyun , JEUN, Jeong Hoon , CHOI, Jae Young , CHOI, Je Nam
CPC分类号： C01P2002/5420130101 , H01M4/505 , C01G53/006 , C01G53/50 , C01P2004/8020130101 , H01M4/525 , H01M10/052
摘要： A cathode active material for a lithium secondary battery includes a lithium-transition metal oxide particle having a shape of a single particle and having a Mn oxidation number ratio of 0.23 or less. The Mn oxidation number ratio is calculated from a deconvolution of a Mn2p spectrum of the lithium-transition metal oxide particle by an X-ray photoelectron spectroscopy (XPS) analysis.
-
公开(公告)号：EP4261911A3
公开(公告)日：2023-10-25
申请号：EP23164849.4
申请日：2023-03-28
IPC分类号： H01M4/02 , H01M4/131 , H01M4/525 , H01M10/052 , H01M10/44 , H01M4/1391
摘要： A cathode for a lithium secondary battery according to an embodiment of the present invention includes a cathode current collector, and a cathode active material layer on the cathode current collector. The cathode active material layer includes cathode active material particles. The cathode active material particles include first lithium metal oxide particles having a shape of a secondary particle in which a plurality of primary particles are aggregated, and second lithium metal oxide particles having a shape of a single particle. A closed pore ratio of the cathode active material layer is 5% or less.
-
公开(公告)号：EP4207362A2
公开(公告)日：2023-07-05
申请号：EP22215571.5
申请日：2022-12-21
申请人： SK On Co., Ltd.
发明人： CHUNG, Ju Ho , JEUN, Jeong Hoon , PARK, Gwi Ok , PARK, Eun Jun , HA, Dong Wook
摘要： Provided is a negative electrode for a secondary battery satisfying the following Relation 1: V 1 − V 2 / V 1 * 100 ≥ 45 % wherein V 1 is a volume fraction (vol%) of silicon-based active material particles having a gray scale value of 30,000 or more in an XRM measurement on a negative electrode in a fully discharged state after formation, and V 2 is a volume fraction (vol%) of silicon-based active material particles having a gray scale value of 30,000 or more in an XRM measurement on a negative electrode in a fully charged state after 500 cycles of charging and discharging.
-
7.发明公开
公开(公告)号：EP4350805A3
公开(公告)日：2024-06-19
申请号：EP23193527.1
申请日：2023-08-25
发明人： LEE, Yong Seok , JEUN, Jeong Hoon , KIM, Jae Ram , MIN, Jae Yun , EOM, Ki Joo , LEE, Myung Ro , JANG, Hyun Joong , CHOI, Je Nam
CPC分类号： H01M2004/02120130101 , H01M2004/02820130101 , H01M4/131 , H01M4/364 , H01M4/525 , H01M4/625 , Y02E60/10 , H01M4/505 , H01M10/052
摘要： A cathode for a lithium secondary battery includes a cathode current collector, and a cathode active material layer formed on the cathode current collector. The cathode active material layer includes cathode active material particles. The cathode active material particles includes a lithium metal oxide particle containing nickel and having a mole fraction of cobalt of 0.02 or less among all elements except lithium and oxygen.
-
公开(公告)号：EP4227269A1
公开(公告)日：2023-08-16
申请号：EP23151178.3
申请日：2023-01-11
发明人： CHOI, Ji Hoon , KWEON, Hee Jun , KIM, Sang Bok , PARK, Sang Min , LEE, Ji Sun , JEUN, Jeong Hoon , CHOI, Je Nam
IPC分类号： C01G53/00
摘要： A cathode active material precursor for a lithium secondary battery is provided according to embodiments of the present invention. The cathode active material precursor for a lithium secondary battery includes a core including a first transition metal composite hydroxide, and a shell which is formed on the core and includes a second transition metal composite hydroxide in which the first transition metal composite hydroxide is doped with a doping metal including at least one of Group 4 to Group 12 metals, wherein the cathode active material precursor has a particle size distribution degree of 0.8 to 1.6 defined by Equation 1. Thereby, it is possible to suppress capacity degradation of the secondary battery due to doping while improving the structural stability of the cathode active material precursor.
-
公开(公告)号：EP4207362A3
公开(公告)日：2023-07-19
申请号：EP22215571.5
申请日：2022-12-21
申请人： SK On Co., Ltd.
发明人： CHUNG, Ju Ho , JEUN, Jeong Hoon , PARK, Gwi Ok , PARK, Eun Jun , HA, Dong Wook
摘要： Provided is a negative electrode for a secondary battery satisfying the following Relation 1: V 1 − V 2 / V 1 * 100 ≥ 45 % wherein V 1 is a volume fraction (vol%) of silicon-based active material particles having a gray scale value of 30,000 or more in an XRM measurement on a negative electrode in a fully discharged state after formation, and V 2 is a volume fraction (vol%) of silicon-based active material particles having a gray scale value of 30,000 or more in an XRM measurement on a negative electrode in a fully charged state after 500 cycles of charging and discharging.
-
-
-
-
-
-
-
-
搜索结果
9 条记录 (耗时 0.012 秒)
