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.

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.

公开(公告)号：EP4203086A1

公开(公告)日：2023-06-28

申请号：EP22213493.4

申请日：2022-12-14

申请人： SK On Co., Ltd.

发明人： MOON, Gi Hyeon ,  LEE, Jong Hyuk ,  LEE, Mi Ryeong ,  KANG, Hee Gyoung ,  KIM, Hyeon A

IPC分类号： H01M4/04 ,  H01M4/131 ,  H01M4/133 ,  H01M4/1393 ,  H01M4/62 ,  H01M10/0525

摘要： An electrode for a lithium secondary battery according to exemplary embodiments includes: an electrode current collector; an electrode active material layer which is formed on at least one surface of the electrode current collector, and includes electrode active material; and a polymer coating which is formed on the electrode active material or the electrode active material layer, and includes polyvinyl alcohol. The polyvinyl alcohol may have an IR spectral peak intensity ratio within a predetermined range. Accordingly, a secondary battery, in which a side reaction between the active material and the electrolyte may be prevented, and structural stability and cycle characteristics are improved, is provided.

公开(公告)号：EP4068415A1

公开(公告)日：2022-10-05

申请号：EP22165786.9

申请日：2022-03-31

申请人： SK On Co., Ltd.

发明人： LEE, Jong Hyuk ,  KANG, Hee Gyoung ,  LEE, Mi Ryeong

IPC分类号： H01M4/04 ,  H01M4/36 ,  H01M4/02 ,  H01M4/131 ,  H01M4/133 ,  H01M4/134 ,  H01M10/0525

摘要： An electrode and a method of manufacturing the electrode are provided. The electrode includes an electrode current collector and an electrode active material layer on at least one surface of the electrode current collector. The electrode active material layer has a thickness of 200 µm or more, and when the electrode active material layer is divided into three portions of a surface layer portion, a middle layer portion, and a lower layer portion in a thickness direction, a difference in porosity between the surface layer portion and the lower layer portion by XRM analysis is 10% or less.

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

申请人： SK On Co., Ltd. ,  SK Innovation Co., Ltd.

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.

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.

公开(公告)号：EP4411872A1

公开(公告)日：2024-08-07

申请号：EP24153902.2

申请日：2024-01-25

申请人： SK On Co., Ltd.

发明人： PARK, Yang Kyu ,  KIM, Seon Ah ,  LEE, Jong Hyuk

IPC分类号： H01M4/134 ,  H01M4/36 ,  H01M4/38 ,  H01M10/0525

CPC分类号： H01M4/134 ,  H01M4/386 ,  H01M4/366 ,  H01M10/0525 ,  H01M4/625 ,  H01M4/587

摘要： An anode active material for a lithium secondary battery includes a silicon-based active material that includes a core particle and a carbon coating formed over or on the core particle. The anode active material satisfies specific relation within a specific range. A lithium secondary battery includes an anode including the anode active material, and a cathode facing the anode.

公开(公告)号：EP4411871A1

公开(公告)日：2024-08-07

申请号：EP24153899.0

申请日：2024-01-25

申请人： SK On Co., Ltd.

发明人： KIM, Seon Ah ,  PARK, Yang Kyu ,  LEE, Jong Hyuk

IPC分类号： H01M4/134 ,  H01M4/36 ,  H01M4/38 ,  H01M10/0525

CPC分类号： H01M4/134 ,  H01M4/366 ,  H01M4/386 ,  H01M10/0525 ,  H01M4/587 ,  H01M4/625

摘要： An anode active material for a lithium secondary battery includes a silicon-based active material that includes a core particle and a carbon coating formed on or over the core particle. The anode active material satisfies a specific relation within a specific range. A lithium secondary battery includes an anode including the anode active material, and a cathode facing the anode.

公开(公告)号：EP4376126A1

公开(公告)日：2024-05-29

申请号：EP23178733.4

申请日：2023-06-12

申请人： SK On Co., Ltd.

发明人： MOON, Gi Hyeon ,  LEE, Jong Hyuk ,  LEE, Mi Ryeong ,  KANG, Hee Gyoung

IPC分类号： H01M4/36 ,  H01M4/62

CPC分类号： H01M4/366 ,  H01M2004/02120130101 ,  H01M10/052 ,  H01M4/62

摘要： An electrode for a lithium secondary battery includes an electrode current collector, an electrode active material layer formed on at least one surface of the electrode current collector and including electrode active material particles, and a lithium salt-containing coating formed on at least portions of surfaces of the electrode active material particles or at least a portion of the surface of the electrode active material layer. The electrode for a lithium secondary battery may have a predetermined surface roughness.

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.