-
1.发明公开公开(公告)号：US20240154112A1
公开(公告)日：2024-05-09
申请号：US18492778
申请日：2023-10-24
申请人： SK ON CO., LTD.
发明人： Hong Ki KIM , Min Gu KANG , Seung Hyun KIM , Young Hoon DO , Young Uk PARK , Yoon Ji LEE , Yong Hyun CHO
IPC分类号： H01M4/525 , H01M4/485 , H01M4/505 , H01M10/052
CPC分类号： H01M4/525 , H01M4/485 , H01M4/505 , H01M10/052 , H01M2004/028
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.
-
2.发明公开公开(公告)号：US20240105938A1
公开(公告)日：2024-03-28
申请号：US18189220
申请日：2023-03-24
申请人： SK ON CO., LTD.
发明人： Min Suk KANG , Ji Yae DO , Min Cheol BEAK , Sang Wook LEE , Yong Hyun CHO
IPC分类号： H01M4/58 , H01M4/36 , H01M4/62 , H01M10/052
CPC分类号： H01M4/5825 , H01M4/364 , H01M4/625 , H01M10/052 , H01M2004/028
摘要： A cathode active material for a lithium secondary battery according to an embodiment of the present disclosure includes first lithium metal phosphate particles, each first lithium metal phosphate particle having a secondary particle shape formed by aggregation of primary particles and having an average particle diameter (D50) in a range from 5 μm to 10 μm, second lithium metal phosphate particles, each having a single particle and having an average particle diameter in a range from 1 μm to 3 μm, and third lithium metal phosphate particles, each having a single particle shape and having an average particle diameter less than 1 μm.
-
3.发明公开公开(公告)号：US20230317929A1
公开(公告)日：2023-10-05
申请号：US18186259
申请日：2023-03-20
申请人： SK On Co., Ltd.
发明人： Yoon Ji LEE , Sang Wook LEE , Yong Hyun CHO
摘要： A cathode active material for a lithium secondary battery according to an embodiment of the present invention includes active material particles containing a lithium-nickel metal oxide, and a tungsten-containing coating formed on at least portion of the active material particles. A content of tungsten measured by an ICP (inductively coupled plasma) is in a range from 100 ppm to 5,000 ppm, and a content of carbon measured by a CS (Carbon-Sulfur) analyzer is 500 ppm or less.
-
公开(公告)号：US20230327099A1
公开(公告)日：2023-10-12
申请号：US18299643
申请日：2023-04-12
发明人： Young Hoon DO , Byoung Beom LIM , Jeong Hoon JEUN , Yong Hyun CHO
IPC分类号： H01M4/505 , H01M4/131 , H01M10/058 , H01M4/525 , H01M10/44
CPC分类号： H01M4/505 , H01M4/131 , H01M10/058 , H01M4/525 , H01M10/446 , H01M2004/021
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：US20220344642A1
公开(公告)日：2022-10-27
申请号：US17718946
申请日：2022-04-12
申请人： SK ON CO., LTD.
发明人： Sang Wook LEE , Young Hoon DO , Young Uk PARK , Yong Hyun CHO , Seung Ok LEE , Ji Sun LEE
IPC分类号： H01M4/36 , H01M4/525 , H01M4/505 , H01M10/0525
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：US20240162478A1
公开(公告)日：2024-05-16
申请号：US18470423
申请日：2023-09-20
申请人： SK ON CO., LTD.
发明人： Young Uk PARK , In Haeng CHO , Seung Hyun KIM , Ki Sung PARK , Min Woo PARK , Seon Yeong PARK , Yong Hyun CHO
IPC分类号： H01M10/0525 , H01M4/505 , H01M4/525 , H01M10/0569
CPC分类号： H01M10/0525 , H01M4/505 , H01M4/525 , H01M10/0569 , H01M2300/0034
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.
-
7.发明公开公开(公告)号：US20230361291A1
公开(公告)日：2023-11-09
申请号：US18306241
申请日：2023-04-25
发明人： Ji Yae DO , Jeong Bae YOON , Min Suk KANG , Hee Jun KWEON , Sang Bok KIM , Yong Hyun CHO , Dong Wook HA
IPC分类号： H01M4/505 , H01M4/525 , H01M10/052 , H01M4/131 , C01G53/00
CPC分类号： H01M4/505 , H01M4/525 , H01M10/052 , H01M4/131 , C01G53/50 , H01M2004/028
摘要： A cathode active material for a lithium secondary battery according to an embodiment of the present invention includes a lithium-transition metal oxide particle. The lithium-transition metal oxide particle has a FWHM ratio measured by an in-situ X-ray Diffraction spectroscopy (XRD) and defined by Equation 1 of 400% or less. Life-span properties of a lithium secondary battery can be improved by preventing deformation of a lattice structure and/or a crystal structure in the lithium-transition metal composite oxide particles.
-
公开(公告)号：US20220384792A1
公开(公告)日：2022-12-01
申请号：US17828534
申请日：2022-05-31
申请人： SK ON CO., LTD.
发明人： Yong Hyun CHO , Ji Yae DO , Yoon Ji LEE , Min Suk KANG
IPC分类号： H01M4/36 , H01M10/052 , H01M4/525 , H01M4/505 , C01G53/00
摘要： A cathode active material for a lithium secondary battery includes a core portion comprising a lithium metal oxide particle, and a coating layer at least partially covering a surface of the core portion and including a lithium boron composite oxide. The lithium boron composite oxide is included in an amount from 100 ppm to 1,500 ppm based on a total weight of the cathode active material. A lithium secondary battery having improved structural stability and electrical property is provided using the cathode active material.
-
-
-
-
-
-
-
搜索结果
8 条记录 (耗时 0.02 秒)
