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1. 发明授权

US11367928B2 Electrode assembly and method for manufacturing the same 有权
公开(公告)号：US11367928B2
公开(公告)日：2022-06-21
申请号：US16638887
申请日：2019-01-24
申请人： LG CHEM, LTD.
发明人： Mi Jung Yoo , Byung Heon Shin , Woo Yong Lee
IPC分类号： H01M50/463 , H01M10/04
摘要： An electrode assembly including an electrode stack including a plurality of radical units including an electrode and a separator and having a structure in which the plurality of radical units are sequentially stacked, wherein at least a portion of a circumference of the electrode stack is surrounded by the separator, a curved surface having a curvature radius is formed on a top or bottom surface of the electrode stack, and the separator surrounding at least the portion of the circumference of the electrode stack surrounds the curved surface formed on the electrode stack to maintain a relative distance between the radical units adjacent to each other is provided. A method of forming the electrode assembly is also provided.

2. 发明申请

US20200052275A1 ELECTRODE ASSEMBLY AND METHOD FOR MANUFACTURING THE SAME 审中-公开
公开(公告)号：US20200052275A1
公开(公告)日：2020-02-13
申请号：US16340652
申请日：2018-01-29
申请人： LG Chem, Ltd.
发明人： Hyun Tae Kim , Byung Heon Shin , Kieun Sung
IPC分类号： H01M2/16 , H01M10/0585
摘要： The present invention relates to an electrode assembly in which a plurality of electrode stacks are stacked to improve product reliability when manufactured and a method for manufacturing the same.The present invention also relates to a method for manufacturing an electrode assembly, and the method includes a preparation step of preparing a plurality of electrode stacks in which an electrode and a separator are alternately stacked, a stacking step of stacking the plurality of electrode stacks on each other, a packaging step of wrapping and packaging a circumferential potion of the plurality of stacked electrode stacks using a separator member, and a fixing step of heating and pressing the separator member to fix the plurality of stacked electrode stacks.

3. 发明申请

US20190273263A1 Electrode Assembly, Secondary Battery Including the Electrode Assembly, and Method for Manufacturing the Electrode Assembly 审中-公开
公开(公告)号：US20190273263A1
公开(公告)日：2019-09-05
申请号：US16349439
申请日：2018-07-16
申请人： LG Chem, Ltd.
发明人： Byung Heon Shin , Woo Yong Lee , Jong Hwa Park
IPC分类号： H01M4/78 , H01M10/0565 , H01M4/04
摘要： Disclosed are an electrode assembly and a method for manufacturing the electrode assembly.According to the present invention, the electrode assembly may be manufactured in consideration of deformation of the electrode assembly and a secondary battery due to a swelling phenomenon to improve assemblability and storage ability of the secondary battery having a curved surface with respect to electronic devices.According to an aspect of the present invention for achieving the above effects, provided is an electrode assembly having a curved surface, wherein a curvature radius (Re) of each of ends of the curved surface is less than a curvature radius (Re) of a central portion of the curved surface.

4. 发明授权

US11005106B2 Electrode assembly, secondary battery including the electrode assembly, and method for manufacturing the electrode assembly 有权
公开(公告)号：US11005106B2
公开(公告)日：2021-05-11
申请号：US16349439
申请日：2018-07-16
申请人： LG Chem, Ltd.
发明人： Byung Heon Shin , Woo Yong Lee , Jong Hwa Park
IPC分类号： H01M4/78 , H01M4/04 , H01M4/13 , H01M10/04 , H01M10/0565 , H01M10/058 , H01M4/02
摘要： Disclosed are an electrode assembly and a method for manufacturing the electrode assembly.
According to the present invention, the electrode assembly may be manufactured in consideration of deformation of the electrode assembly and a secondary battery due to a swelling phenomenon to improve assemblability and storage ability of the secondary battery having a curved surface with respect to electronic devices.
According to an aspect of the present invention for achieving the above effects, provided is an electrode assembly having a curved surface, wherein a curvature radius (Re) of each of ends of the curved surface is less than a curvature radius (Rc) of a central portion of the curved surface.

5. 发明授权

US11621434B2 Method for manufacturing electrode assembly 有权
公开(公告)号：US11621434B2
公开(公告)日：2023-04-04
申请号：US16761647
申请日：2019-01-24
申请人： LG CHEM, LTD.
发明人： Mi Jung Yoo , Byung Heon Shin , Woo Yong Lee
IPC分类号： H01M10/04 , H01M4/04
摘要： A method for manufacturing the electrode assembly includes: a first step of preparing a plurality of radical units, each of which is manufactured by alternately stacking an electrode and a separator; a second step of stacking the plurality of radical units to manufacture an electrode stack; and a third step of pressing an outer surface of the electrode stack to manufacture an electrode assembly on which a curved surface having a curvature radius is formed on the electrode stack, wherein, when the sum of bonding force remaining after the third step among bonding force between the electrode and the separator as bonding force generated before the third step is defined as F1, the sum of force by which the electrode and the separator are spread again so that shapes of the electrode and the separator return to shapes before the electrode stack is pressed in the third step is defined as R, and the sum of bonding force additionally generated between the electrode and the separator within the electrode assembly by the third step is defined as F2, expression: F1+R≤F2 is satisfied.

6. 发明授权

US11251502B2 Electrode assembly and method for manufacturing the same 有权
公开(公告)号：US11251502B2
公开(公告)日：2022-02-15
申请号：US16340652
申请日：2018-01-29
申请人： LG Chem, Ltd.
发明人： Hyun Tae Kim , Byung Heon Shin , Kieun Sung
IPC分类号： H01M50/46 , H01M10/0585
摘要： The present invention relates to an electrode assembly in which a plurality of electrode stacks are stacked to improve product reliability when manufactured and a method for manufacturing the same. The present invention also relates to a method for manufacturing an electrode assembly and includes a preparation step of preparing a plurality of electrode stacks in which an electrode and a separator are alternately stacked, a stacking step of stacking the plurality of electrode stacks on each other, a packaging step of wrapping and packaging a circumferential potion of the plurality of stacked electrode stacks using a separator member, and a fixing step of heating and pressing the separator member to fix the plurality of stacked electrode stacks.

7. 发明申请

US20190273281A1 Method for Manufacturing Electrode Assembly and Pressing Device for Electrode Assembly 审中-公开
公开(公告)号：US20190273281A1
公开(公告)日：2019-09-05
申请号：US16348960
申请日：2018-07-16
申请人： LG Chem, Ltd.
发明人： Byung Heon Shin , Hyun Tae Kim , Ji Won Jeong
IPC分类号： H01M10/04 , H01M2/16
摘要： Disclosed are a method for manufacturing an electrode assembly and a pressing device for the pressing electrode assembly.According to the present invention, the electrode assembly on which a curved surface having a curvature radius, which conforms to a curvature radius that is originally intended to be formed, is formed may be manufactured.Also, the electrode assembly on which a curved surface having a uniform curvature radius is formed by reducing or eliminating a difference between a curvature radius at a central portion of the electrode assembly and a curvature radius at each of both ends of the electrode assembly may be manufactured.According to an aspect of the present invention for achieving the above object, provided is a method for manufacturing an electrode assembly, the method including: a step of preparing an electrode assembly including an electrode and a separator and a pressing unit pressing the electrode assembly; and a pressing step of pressing a top or bottom surface of the electrode assembly by using the pressing unit to form a curved surface on the electrode assembly, wherein the pressing step includes: pressing a plurality of areas, which are spaced apart from each other, on the top or bottom surface of the electrode assembly through the pressing unit without pressing an area between the plurality of areas.

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