-
1.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：EP4362157A1
公开(公告)日：2024-05-01
申请号：EP23199020.1
申请日：2023-09-22
申请人： SK On Co., Ltd.
发明人： PARK, Young Uk , CHO, In Haeng , KIM, Seung Hyun , PARK, Ki Sung , PARK, Min Woo , PARK, Seon Yeong , CHO, Yong Hyun
IPC分类号： H01M10/0525 , H01M4/58 , H01M10/0568 , H01M10/0569 , H01M4/525
CPC分类号： H01M4/525 , H01M10/0525 , H01M10/0569 , H01M10/0568
摘要： A lithium secondary battery includes a cathode including a cathode active material that contains lithium metal oxide particles, an anode facing the cathode, and a non-aqueous electrolyte solution including a non-aqueous organic solvent that contains a fluorine-based organic solvent and a lithium salt. A ratio of the number of moles of lithium contained in each of the lithium metal oxide particles to the total number of moles of metals excluding lithium contained in each of the lithium metal oxide particles is 1.05 or more. A content of the fluorine-based organic solvent is in a range from 5 vol% to 60 vol% based on a total volume of the non-aqueous organic solvent.
-
3.发明公开
公开(公告)号：EP4368580A1
公开(公告)日：2024-05-15
申请号：EP23197866.9
申请日：2023-09-18
申请人： SK On Co., Ltd.
发明人： KIM, Hong Ki , KANG, Min Gu , KIM, Seung Hyun , DO, Young Hoon , PARK, Young Uk , LEE, Yoon Ji , CHO, Yong Hyun
摘要： A cathode active material for a lithium secondary battery according to an embodiment includes lithium metal oxide particles containing lithium and nickel, and containing a small amount of cobalt or no cobalt. An average particle diameter, a modulus and a hardness of the lithium metal oxide particles are adjusted to satisfy a desired relation. A lithium secondary battery has improved high-temperature storage properties, structural stability and high power properties.
-
公开(公告)号：EP4074659A3
公开(公告)日：2022-11-09
申请号：EP22168041.6
申请日：2022-04-12
申请人： SK On Co., Ltd.
发明人： LEE, Sang Wook , DO, Young Hoon , PARK, Young Uk , CHO, Yong Hyun , LEE, Seung Ok , LEE, Ji Sun
摘要： A cathode active material for a lithium secondary battery according to an embodiment of the present invention includes a lithium metal oxide particle containing nickel, and a coating material formed on at least a portion of a surface of the lithium metal oxide particle. The coating material includes a metalloid element or a metal element. A surface coating level of the cathode active material is 0.3 or more.
-
公开(公告)号：EP4074659A2
公开(公告)日：2022-10-19
申请号：EP22168041.6
申请日：2022-04-12
申请人： SK On Co., Ltd.
发明人： LEE, Sang Wook , DO, Young Hoon , PARK, Young Uk , CHO, Yong Hyun , LEE, Seung Ok , LEE, Ji Sun
摘要： A cathode active material for a lithium secondary battery according to an embodiment of the present invention includes a lithium metal oxide particle containing nickel, and a coating material formed on at least a portion of a surface of the lithium metal oxide particle. The coating material includes a metalloid element or a metal element. A surface coating level of the cathode active material is 0.3 or more.
-
-
-
-
搜索结果
5 条记录 (耗时 0.011 秒)
