公开(公告)号：US20230207975A1

公开(公告)日：2023-06-29

申请号：US18097374

申请日：2023-01-16

申请人： SK ON CO., LTD.

发明人： Jong Hyuk LEE ,  Hee Gyoung KANG ,  Dock Young YOON

IPC分类号： H01M50/531 ,  H01M10/04 ,  H01M50/105 ,  H01M50/548 ,  H01M50/553 ,  H01M50/178 ,  H01M50/184 ,  H01M50/186 ,  H01M50/183 ,  H01M50/172 ,  H01M50/10

CPC分类号： H01M50/531 ,  H01M10/049 ,  H01M50/10 ,  H01M50/105 ,  H01M50/172 ,  H01M50/178 ,  H01M50/183 ,  H01M50/184 ,  H01M50/186 ,  H01M50/548 ,  H01M50/553

摘要： The present invention provide a pouch type secondary battery and a method for manufacturing the same. More particularly, the present invention provides a pouch type secondary battery and a method for manufacturing the same, in which a pouch case is formed in a folding manner without being subjected to a forming process (press process), such that there is no limit in a length, and a thickness of an inner space of the pouch case is not limited.

公开(公告)号：US20220200112A1

公开(公告)日：2022-06-23

申请号：US17559188

申请日：2021-12-22

申请人： SK On Co., Ltd.

发明人： Jong Hyuk LEE ,  Hee Gyoung KANG

IPC分类号： H01M50/636

摘要： A battery cell includes a case, accommodating an electrode assembly therein, and a connection unit formed to have a tube shape and having one end bonded to an external surface of the case. The case includes a projection formed to protrude outwardly, and the projection is disposed in an internal surface of the connection unit.

公开(公告)号：US20220328829A1

公开(公告)日：2022-10-13

申请号：US17708888

申请日：2022-03-30

申请人： SK ON CO., LTD.

发明人： So Hyun PARK ,  Chan Young JEON ,  Hee Gyoung KANG ,  Hae Suk HWANG

IPC分类号： H01M4/583 ,  H01M4/04 ,  H01M4/36 ,  H01M4/133 ,  H01M10/052

摘要： An anode for a lithium secondary battery according to exemplary embodiments may include an anode current collector and an active material layer formed on at least one surface of the anode current collector and having a value of pore resistance to density within a predetermined range. Accordingly, it is possible to secure both high-capacity characteristics and high speed charging stability, thus to further improve capacity and efficiency of the lithium secondary battery.

公开(公告)号：US20220302564A1

公开(公告)日：2022-09-22

申请号：US17697675

申请日：2022-03-17

申请人： SK On Co., Ltd.

发明人： Jae Sik SHIN ,  Hee Gyoung KANG ,  Joo Wan KIM ,  Tae Il KIM

IPC分类号： H01M50/586 ,  H01M4/52 ,  H01M10/42 ,  H01M50/46

摘要： An exemplary embodiment in the present disclosure relates to an electrode assembly capable of suppressing the occurrence of a short of a battery including an insulation film, a secondary battery including the electrode assembly, a battery module, and a battery pack. The electrode assembly includes an electrode laminate in which a cathode and an anode are alternately stacked with a separator as a boundary, a porous insulation film surrounding four or more sides of the electrode laminate, in which two of both ends of the insulation film are adhered on a side surface of the electrode laminate.

公开(公告)号：US20220359864A1

公开(公告)日：2022-11-10

申请号：US17737222

申请日：2022-05-05

申请人： SK ON CO., LTD.

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

IPC分类号： H01M4/36 ,  H01M4/62 ,  H01M4/133 ,  H01M4/134 ,  H01M4/38 ,  H01M4/587

摘要： An anode active material for a secondary battery according to an embodiment of the present invention includes a core particle, a polymer coating formed on a surface of the core particle, and conductive particles formed on the polymer coating. The conductive particles have an average particle diameter greater than a thickness of the polymer coating. The anode active material and a secondary battery having improved stability and reduced resistance are provided using the polymer coating and the conductive particles.

公开(公告)号：US20220285672A1

公开(公告)日：2022-09-08

申请号：US17683806

申请日：2022-03-01

申请人： SK ON CO., LTD.

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

IPC分类号： H01M4/36 ,  H01M4/62

摘要： An anode active material for a secondary battery according to an embodiment of the present invention includes a core particle, a polymer coating formed on a surface of the core particle, and conductive particles formed on the polymer coating. The conductive particles have an average particle diameter greater than a thickness of the polymer coating. The anode active material and a secondary battery having improved stability and reduced resistance are provided using the polymer coating and the conductive particles.

公开(公告)号：US20230063421A1

公开(公告)日：2023-03-02

申请号：US17887410

申请日：2022-08-12

申请人： SK ON CO., LTD.

发明人： So Hyun PARK ,  Hee Gyoung KANG ,  Chan Young JEON ,  Hae Suk HWANG

IPC分类号： H01M4/583 ,  H01M10/052 ,  H01M4/36

摘要： Secondary batteries including the anode and having improved capacity properties and stability are disclosed. In an aspect, an anode for a secondary battery includes first anode active material particles, each of the first anode active material particles having a single particle structure that includes a core particle and a coating layer formed on a surface of the core particle, and second anode active material particles including a carbon-based material, wherein each of the second anode active material particles includes an assembly of a plurality of sub-particles.

公开(公告)号：US20220320502A1

公开(公告)日：2022-10-06

申请号：US17710448

申请日：2022-03-31

申请人： SK On Co., Ltd.

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

IPC分类号： H01M4/36 ,  H01M4/04

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：US20240332511A1

公开(公告)日：2024-10-03

申请号：US18738082

申请日：2024-06-10

申请人： SK ON CO., LTD.

发明人： So Hyun PARK ,  Hee Gyoung KANG ,  Hae Suk HWANG ,  Chan Young JEON

IPC分类号： H01M4/36 ,  H01M4/02 ,  H01M10/0525

CPC分类号： H01M4/366 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/027

摘要： An anode for a lithium secondary battery includes an anode current collector, and an anode active material layer formed on the anode current collector. The anode active material layer including a lower anode active material layer formed on the anode current collector and an upper anode active material layer formed on the lower anode active material layer. Each of the lower anode active material layer and the upper anode active material layer includes a first anode active material and a second anode active material having a hardness less than that of the first anode active material. A total intrusion amount of mercury to pores having a diameter of 3 nm to 10 μm in the anode active material layer measured by a mercury porosimeter is 0.27 ml/g or more.

公开(公告)号：US20230068138A1

公开(公告)日：2023-03-02

申请号：US17887403

申请日：2022-08-12

申请人： SK ON CO., LTD.

发明人： Chan Young JEON ,  Hee Gyoung KANG ,  So Hyun PARK ,  Hae Suk HWANG

IPC分类号： H01M4/36 ,  H01M10/052 ,  H01M4/583 ,  H01M4/485

摘要： Secondary batteries including an anode and having improved capacity properties and stability are disclosed. In an aspect, an anode for a secondary battery includes first anode active material particles, each of the first anode active material particles having a single particle structure that includes a core particle and a coating layer formed on a surface of the core particle, and second anode active material particles having an average particle diameter greater than that of the first anode active material particles. A ratio of a weight of the first anode active material particles to a total weight of the first anode active material particles and the second anode active material particles is in a range from 50 wt % to 100 wt %.