-
1.发明公开
公开(公告)号：EP3974391A1
公开(公告)日：2022-03-30
申请号：EP21196694.0
申请日：2021-09-14
发明人： KIM, Sang Bok , KIM, Jik Soo , YOON, Jeong Bae , LEE, Seung Ok , CHOI, Ji Hoon
摘要： A method of manufacturing a cathode active material for a lithium secondary battery according to embodiments of the present invention includes performing a first heat treatment on a first mixture of a transition metal precursor and a lithium precursor at a first calcination temperature to obtain a preliminary lithium-transition metal composite oxide particle; and performing a second heat treatment on a second mixture obtained by adding the lithium precursor to the preliminary lithium-transition metal composite oxide particle at a second calcination temperature which is lower than the first calcination temperature to form a lithium-transition metal composite oxide particle.
-
2.发明公开
公开(公告)号：EP3926708A1
公开(公告)日：2021-12-22
申请号：EP21170256.8
申请日：2021-04-23
发明人： CHOI, Ji Hoon , KIM, Sang Bok , KIM, Jik Soo , KWEON, Jee Jun , PARK, Sung Soon
摘要： A cathode active material for a lithium secondary battery of embodiments of the present invention includes a lithium composite oxide, a first coating part formed on a surface of the lithium composite oxide and containing aluminum, and a second coating part formed on the first coating part and containing boron. Thereby, stability and electrical characteristics of the secondary battery may be improved.
-
公开(公告)号：EP4194407A1
公开(公告)日：2023-06-14
申请号：EP22211747.5
申请日：2022-12-06
发明人： NOH, Mi Jung , YOON, Jeong Bae , CHOI, Je Nam , KIM, Sang Bok , CHOI, Jae Ho , HA, Dong Wook
摘要： A cathode active material precursor for a lithium secondary battery has a structure of a nickel composite hydroxide. A first peak intensity ratio represented by Equation 1 is 0.5 or more, and a second peak intensity ratio represented by Equation 2 is 0.7 or more. A cathode active material and a lithium secondary battery having a stabilized crystal structure are provided using the cathode active material precursor.
-
4.发明公开
公开(公告)号：EP4276074A1
公开(公告)日：2023-11-15
申请号：EP23172166.3
申请日：2023-05-08
发明人： DO, Ji Yae , YOON, Jeong Bae , KANG, Min Suk , KWEON, Hee Jun , KIM, Sang Bok , CHO, Yong Hyun , HA, Dong Wook
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.
-
5.发明公开
公开(公告)号：EP4170751A1
公开(公告)日：2023-04-26
申请号：EP22202624.7
申请日：2022-10-19
发明人： KIM, Sang Bok , PARK, Sang Min , CHOI, Ji Hoon , SUNG, Jung Moon , SHIN, Sang Hye , LEE, Ji Sun , CHOI, Jae Young
IPC分类号： H01M4/36 , H01M4/46 , H01M4/485 , H01M4/505 , H01M4/525 , H01M4/62 , H01M10/0525 , H01M50/105 , H01M4/02
摘要： Embodiments of the present invention provide a cathode active material for a lithium secondary battery. The cathode active material for a lithium secondary battery includes lithium-transition metal composite oxide particles, and a coating formed on each of the lithium-transition metal composite oxide particles. The coating includes a lithium-sulfur compound and a metal hydroxide. A residual lithium on a surface of the cathode active material is sufficiently removed to improve an ionic conductivity and low-resistance.
-
6.发明公开
公开(公告)号：EP4057382A1
公开(公告)日：2022-09-14
申请号：EP22160613.0
申请日：2022-03-07
发明人： PARK, Sang Min , LEE, Tae Kyoung , KIM, Sang Bok , KIM, Jik Soo , SHIN, Sang Hye , SHIM, Yu Na , YOON, Jeong Bae
摘要： The cathode active material for a lithium secondary battery according to embodiments of the present invention includes lithium-transition metal composite oxide particles including a plurality of primary particles, and the lithium-transition metal composite oxide particles have a lithium-potassium-containing portion formed between the primary particles. Thereby, it is possible to improve life-span properties and capacity properties by preventing the layer structure deformation of the primary particles and removing residual lithium.
-
7.发明公开
公开(公告)号：EP4026805A2
公开(公告)日：2022-07-13
申请号：EP22150394.9
申请日：2022-01-05
发明人： KIM, Sang Bok , LEE, Tae Kyoung , NOH, Mi Jung , CHOI, Ji Hoon , HA, Dong Wook
摘要： The cathode active material for a lithium secondary battery is provided. According to embodiments of the present invention includes a lithium-transition metal composite oxide particle including a plurality of primary particles, and the lithium-transition metal composite oxide particle has a lithium-boron-containing portion formed between the primary particles. Thereby, it is possible to improve life-span properties and capacity properties by removing residual lithium.
-
8.发明公开
公开(公告)号：EP3806232A3
公开(公告)日：2021-04-28
申请号：EP20201086.4
申请日：2020-10-09
发明人： KIM, Sang Bok , KIM, Jik Soo , MOON, Se Rah , SEO, Jin Seok , NOH, Mi Jung , HWANG, Duck Chul
IPC分类号： H01M50/00
摘要： A cathode active material for a lithium secondary battery includes a lithium metal oxide particle and a thiosulfate anion (S 2 O 3 2- ) combined on at least a portion of a surface of the lithium metal oxide particle. A content of the thiosulfate anion of the lithium metal oxide particle measured by an ion chromatography analysis is in a range from 100 ppb to 8,000 ppb. Chemical stability and electrical property of the lithium metal oxide particle can be enhanced by the thiosulfate anion
-
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：EP4181234A1
公开(公告)日：2023-05-17
申请号：EP22207356.1
申请日：2022-11-14
IPC分类号： H01M4/36 , H01M4/505 , H01M4/525 , H01M10/0525 , H01M10/0562 , H01M4/02 , H01M4/38
摘要： A cathode active material for a sulfide-based all-solid-state battery according to embodiments of the present invention includes a first lithium-transition metal composite oxide particle having a secondary particle structure that includes a plurality of primary particles therein. The first lithium-transition metal composite oxide particle includes a lithium-sulfur-containing portion formed between the primary particles.
-
-
-
-
-
-
-
-
-
搜索结果
13 条记录 (耗时 0.016 秒)
