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公开(公告)号：EP4280303A1
公开(公告)日：2023-11-22
申请号：EP23173885.7
申请日：2023-05-17
发明人： LEE, Sang Han , LEE, Ju Wook , LEE, Jong Hyuk , KIM, Jung Hwan , PARK, Soo Min , CHO, In Haeng , HA, Dong Wook
IPC分类号： H01M4/505 , H01M4/525 , H01M10/0525 , H01M10/0565
摘要： A cathode (100) for a lithium secondary battery includes a cathode current collector, and a cathode active material layer (110) satisfying a specific formula formed on the cathode current collector (105). The cathode active material layer (110) includes lithium metal oxide particles that have a single-particle shape, and a single-crystalline structure or a poly-crystalline structure including two or more single crystals. A lithium secondary battery including the cathode (100), and a method of preparing a cathode active material are also provided.
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2.发明公开
公开(公告)号：EP4250420A1
公开(公告)日：2023-09-27
申请号：EP23162747.2
申请日：2023-03-17
申请人： SK On Co., Ltd.
发明人： LEE, Jong Hyuk , LEE, Sang Han , KIM, Jung Hwan , CHO, In Haeng , HA, Dong Wook
IPC分类号： H01M10/052 , H01M10/056 , H01M4/04 , H01M4/1391 , H01M4/131 , H01M4/505 , H01M4/52 , H01M4/62 , H01M4/02
摘要： A cathode composition for a lithium secondary battery is provided. The cathode composition for a lithium secondary battery according to embodiments of the present invention includes a cathode active material including cathode active material particles having a single particle shape, flake graphite, and a conductive material including an amorphous carbon-based conductive material. Thereby, energy density and life-span properties of the lithium secondary battery may be improved.
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公开(公告)号：EP4210131A2
公开(公告)日：2023-07-12
申请号：EP22216969.0
申请日：2022-12-28
申请人： SK On Co., Ltd.
发明人： CHO, In Haeng , KIM, Jung Hwan , LEE, Sang Han , LEE, Jong Hyuk , HA, Dong Wook
IPC分类号： H01M4/525 , H01M10/0525 , H01M10/0567 , H01M10/0568 , H01M10/0569
摘要： A lithium secondary battery includes a cathode including a cathode current collector and a cathode active material layer disposed on at least one surface of the cathode current collector, the cathode active material layer including a cathode active material including first cathode active material particles, each of which has a single particle shape; an anode facing the cathode; and a non-aqueous electrolyte including a non-aqueous organic solvent that contains a fluorine-based organic solvent, a lithium salt and an additive.
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4.发明公开
公开(公告)号：EP4102598A1
公开(公告)日：2022-12-14
申请号：EP22178516.5
申请日：2022-06-10
申请人： SK On Co., Ltd.
发明人： LEE, Yong Seok , KIM, Jae Ram , KIM, Jung Hwan , MIN, Jae Yun , BAE, Sang Won , LEE, Myung Ro , LEE, Jae Yeong , JANG, Hyun Joong
摘要： A cathode composition for a lithium secondary battery includes a cathode active material that includes first cathode active material particles respectively having a secondary particle shape and second cathode active material particles respectively having a single particle shape, and a conductive material including a linear-type conductive material. A lithium secondary battery having enhanced life-span and resistance properties is provided.
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5.发明公开
公开(公告)号：EP4318643A1
公开(公告)日：2024-02-07
申请号：EP23188000.6
申请日：2023-07-27
申请人： SK On Co., Ltd.
发明人： LEE, Sang Han , KIM, Jung Hwan , LEE, Jong Hyuk , CHO, In Haeng , HA, Dong Wook
IPC分类号： H01M4/131 , H01M4/1391 , H01M4/525 , C01G53/00 , H01M10/0525 , H01M10/0585 , H01M4/02
摘要： A cathode for a lithium secondary battery includes a cathode current collector, and a cathode active material layer on the cathode current collector. The cathode active material layer includes a plurality of a lithium-metal oxide particle that has a shape of a single particle. An activation energy (Ea) of the cathode is in a range from 50 kJ/mol to 80 kJ/mol.
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公开(公告)号：EP4210131A3
公开(公告)日：2023-09-13
申请号：EP22216969.0
申请日：2022-12-28
申请人： SK On Co., Ltd.
发明人： CHO, In Haeng , KIM, Jung Hwan , LEE, Sang Han , LEE, Jong Hyuk , HA, Dong Wook
IPC分类号： H01M4/525 , H01M10/0525 , H01M10/0567 , H01M10/0568 , H01M10/0569
摘要： A lithium secondary battery includes a cathode including a cathode current collector and a cathode active material layer disposed on at least one surface of the cathode current collector, the cathode active material layer including a cathode active material including first cathode active material particles, each of which has a single particle shape; an anode facing the cathode; and a non-aqueous electrolyte including a non-aqueous organic solvent that contains a fluorine-based organic solvent, a lithium salt and an additive.
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7.发明公开
公开(公告)号：EP4216297A1
公开(公告)日：2023-07-26
申请号：EP22217277.7
申请日：2022-12-30
申请人： SK On Co., Ltd.
发明人： KIM, Jung Hwan , HA, Dong Wook , PARK, Soo Min , LEE, Sang Han , LEE, Jong Hyuk , CHO, In Haeng
IPC分类号： H01M4/02 , H01M4/131 , H01M4/1391 , H01M4/36 , H01M10/052
摘要： A cathode for a lithium secondary battery according to embodiments of the present invention includes a cathode current collector, and a cathode active material layer formed on the cathode current collector. The cathode active material layer includes first lithium metal oxide particles each having a secondary particle shape in which primary particles are aggregated and second lithium metal oxide particles each having a single particle shape. A cross-section of the cathode active material layer from an SEM satisfies Equations 1 and 2.
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8.发明公开
公开(公告)号：EP4057380A2
公开(公告)日：2022-09-14
申请号：EP22160615.5
申请日：2022-03-07
发明人： LEE, Yong Seok , KIM, Jae Ram , KIM, Jung Hwan , MIN, Jae Yun , BAE, Sang Won , BAE, Ji Hee , LEE, Myung Ro , LEE, Jae Yeong
IPC分类号： H01M4/13 , H01M4/62 , H01M10/052 , H01M4/02
摘要： Provided is a positive electrode for a lithium secondary battery including: a current collector; and a positive electrode active material layer including a positive electrode active material and carbon nanotubes, placed on the current collector, wherein the carbon nanotubes have I D /I G of 0.10 or less, the I D /I G being a ratio of a peak intensity of a D band divided by a peak intensity of a G band in a Raman spectrum.
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公开(公告)号：EP3739674A1
公开(公告)日：2020-11-18
申请号：EP20174996.7
申请日：2020-05-15
发明人： LEE, Yong Seok , KIM, Jung Hwan , LEE, Myung Ro , BAE, Sang Won , BAE, Ji Hee
IPC分类号： H01M4/133 , H01M4/134 , H01M4/36 , H01M4/62 , H01M10/0525 , H01M4/38 , H01M4/48 , H01M4/587 , H01M4/02
摘要： According to the present inventive concept, a lithium secondary battery includes a cathode, a separator, and an anode including an anode current collector and an anode active material layer formed on the anode current collector and facing the cathode with the separator interposed therebetween. The anode active material layer includes a first anode active material layer formed on the anode current collector and including a first anode active material and a first anode binder containing a styrenebutadiene-based rubber (SBR) binder and a second anode active material layer formed on the first anode active material layer and including a second anode active material and a second anode binder containing a acryl-based binder. Each of the first anode active material and the second anode active material includes a silicon-based active material and a graphite-based material and contains 2 to 9.5 parts by weight of silicon with respect to the 100 part by weight of the graphite-based active material.
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10.发明公开
公开(公告)号：EP4057380A3
公开(公告)日：2022-10-19
申请号：EP22160615.5
申请日：2022-03-07
发明人： LEE, Yong Seok , KIM, Jae Ram , KIM, Jung Hwan , MIN, Jae Yun , BAE, Sang Won , BAE, Ji Hee , LEE, Myung Ro , LEE, Jae Yeong
IPC分类号： H01M4/13 , H01M4/62 , H01M10/052 , H01M4/02
摘要： Provided is a positive electrode for a lithium secondary battery including: a current collector; and a positive electrode active material layer including a positive electrode active material and carbon nanotubes, placed on the current collector, wherein the carbon nanotubes have I D /I G of 0.10 or less, the I D /I G being a ratio of a peak intensity of a D band divided by a peak intensity of a G band in a Raman spectrum.
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