公开(公告)号：US11978883B2

公开(公告)日：2024-05-07

申请号：US17551886

申请日：2021-12-15

申请人： SK On Co., Ltd.

发明人： Jong Hyuk Lee ,  Mi Ryeong Lee ,  Hee Gyoung Kang

IPC分类号： H01M4/04 ,  H01M4/62

CPC分类号： H01M4/0416 ,  H01M4/0404 ,  H01M4/621

摘要： Provided is a fabrication method of an electrode for a secondary battery including coating an electrode slurry containing an electrode active material and a binder on a current collector; drying the current collector on which the electrode slurry is coated to form an electrode active material layer; and surface-treating the electrode active material layer formed on the current collector to remove a binder layer on a surface of the electrode active material layer.

公开(公告)号：US12034146B2

公开(公告)日：2024-07-09

申请号：US18351183

申请日：2023-07-12

申请人： SK ON CO., LTD.

发明人： Gi Hyeon Moon ,  Jong Hyuk Lee ,  Mi Ryeong Lee ,  Hee Gyoung Kang

IPC分类号： H01M4/131 ,  H01M4/64 ,  H01M10/05 ,  H01M10/052 ,  H01M4/02

CPC分类号： H01M4/131 ,  H01M4/64 ,  H01M10/05 ,  H01M10/052 ,  H01M2004/021

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：US20240347710A1

公开(公告)日：2024-10-17

申请号：US18751715

申请日：2024-06-24

申请人： SK On Co., Ltd

发明人： Gi Hyeon Moon ,  Jong Hyuk Lee ,  Mi Ryeong Lee ,  Hee Gyoung Kang

IPC分类号： H01M4/36 ,  H01M4/02 ,  H01M4/133 ,  H01M4/583 ,  H01M4/62 ,  H01M10/052

CPC分类号： H01M4/366 ,  H01M4/133 ,  H01M4/583 ,  H01M4/62 ,  H01M10/052 ,  H01M2004/021 ,  H01M2004/027 ,  H01M2004/028

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：US20240170642A1

公开(公告)日：2024-05-23

申请号：US18351183

申请日：2023-07-12

申请人： SK ON CO., LTD.

发明人： Gi Hyeon Moon ,  Jong Hyuk Lee ,  Mi Ryeong Lee ,  Hee Gyoung Kang

IPC分类号： H01M4/131 ,  H01M10/052

CPC分类号： H01M4/131 ,  H01M10/052 ,  H01M2004/021

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：US20230197936A1

公开(公告)日：2023-06-22

申请号：US18078242

申请日：2022-12-09

申请人： SK ON CO., LTD.

发明人： Gi Hyeon MOON ,  Jong Hyuk Lee ,  Mi Ryeong Lee ,  Hee Gyoung Kang ,  Hyeon A Kim

IPC分类号： H01M4/36 ,  H01M4/13 ,  H01M4/62 ,  C08F216/06

CPC分类号： H01M4/366 ,  C08F216/06 ,  H01M4/13 ,  H01M4/62 ,  H01M2004/021

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：US20220336810A1

公开(公告)日：2022-10-20

申请号：US17723796

申请日：2022-04-19

申请人： SK ON CO., LTD.

发明人： Hae Suk Hwang ,  Mi Ryeong Lee ,  Hee Gyoung Kang ,  Jong Hyuk Lee

IPC分类号： H01M4/587 ,  H01M10/0525 ,  H01M4/485 ,  H01M4/04 ,  H01M4/1393 ,  H01M4/36

摘要： An anode for a lithium secondary battery according to an embodiment of the present invention includes a current collector, and an anode active material layer coated on the current collector. The anode active material layer includes an anode active material that includes natural graphite particles, and has an electrode density of 1.50 g/cc or more. An XRD orientation index defined as I(004)/I(110) is 8 or less, I(004) is a peak intensity corresponding to a (004) plane of the anode active material obtained by an XRD measurement from the anode active material layer, and I(110) is a peak intensity corresponding to a (110) plane of the anode active material obtained by the XRD measurement from the anode active material layer.