公开(公告)号：US11228029B2

公开(公告)日：2022-01-18

申请号：US16604930

申请日：2018-09-06

申请人： LG CHEM, LTD.

发明人： Sangkyun Lee ,  Baeck Boem Choi ,  Cha Hun Ku ,  Minwook Kim

IPC分类号： H01M4/66 ,  H01M4/38 ,  H01M4/1395 ,  H01M10/052 ,  H01M10/058 ,  H01M4/02 ,  H01M10/0525

摘要： A method for producing a lithium metal negative electrode structure including the steps of: (a) forming a lithium metal layer on a portion of one side or both sides of a current collector, wherein a non-coated portion of the current collector, on which a tab will be formed, is included on one side of the current collector, and wherein a stepped part is present between the non-coated portion of the current collector and the coated portion of the lithium metal layer; (b) coating and curing a photocurable material, or attaching an insulating tape, onto the stepped part between the non-coated portion of the current collector and the coated portion of the lithium metal layer; and (c) punching the result of step (b) into a unit electrode to produce the lithium metal negative electrode structure.

公开(公告)号：US11171354B2

公开(公告)日：2021-11-09

申请号：US15759618

申请日：2017-07-07

申请人： LG CHEM, LTD.

发明人： Sang Kyun Lee ,  Jung Kwan Pyo ,  Cha Hun Ku

IPC分类号： H01M10/04 ,  H01M50/46 ,  H01M50/403 ,  H01M50/463

摘要： The present invention relates to an electrode assembly and a method for manufacturing the same, and more particularly, to an electrode assembly in which a degree of alignment of cells is improved and a method for manufacturing the same. An electrode assembly according to the present invention comprises a separator sheet folded in a zigzag shape and a unit cell having a structure in which an electrode and a separator are alternately stacked, wherein the unit cell is repeatedly disposed between the separator sheet that is folded in a zigzag shape, and at least a portion of the unit cell and at least a portion of the separator sheet are bonded to each other.

公开(公告)号：US10971716B2

公开(公告)日：2021-04-06

申请号：US16066538

申请日：2017-08-08

申请人： LG Chem, Ltd.

发明人： Jung Kwan Pyo ,  Sung Jong Kim ,  Cha Hun Ku ,  Tae Kyu Kim ,  Won Nyeon Kim ,  Gyung Soo Kang

IPC分类号： H01M4/66 ,  H01M4/04

摘要： Provided are an electrode unit and a method for manufacturing the electrode unit. According to the present invention, after the electrode unit is manufactured by using heat, bending of the electrode unit occurring by cooling the electrode unit may be eliminated or minimized. To achieve the aforementioned object, in the method for manufacturing the electrode unit according to an embodiment of the present invention, stress applied to the inside of each of the positive electrode collector and the negative electrode collector is calculated to reflect the calculated results, thereby selecting the positive electrode collector and the negative electrode collector.

公开(公告)号：US10854924B2

公开(公告)日：2020-12-01

申请号：US16072401

申请日：2017-09-04

申请人： LG Chem, Ltd.

发明人： Jung Kwan Pyo ,  Sung Jong Kim ,  Sang Hyun Koo ,  Soo Ryoung Kim ,  Cha Hun Ku ,  Sung Min Hwang

IPC分类号： H01M10/0583 ,  H01M2/16 ,  H01M10/04

摘要： The present invention relates to an electrode assembly and a method for manufacturing the same, and more particularly, to an electrode assembly which is capable of improving an alignment of a secondary battery, realizing a high-capacity battery, and simplifying manufacturing processes of the secondary battery, and a method for manufacturing the same.The electrode assembly includes an electrode stack in which a plurality of first electrodes spaced apart from each other are disposed between two separators and second electrodes attached to both outer surfaces of the electrode stack at alternate positions of a plurality of positions on which the first electrodes are disposed, wherein, in the electrode stack, an area between the first electrode and the adjacent first electrode is folded.

公开(公告)号：US20200075909A1

公开(公告)日：2020-03-05

申请号：US16678462

申请日：2019-11-08

申请人： LG Chem, Ltd.

发明人： Sang Kyun Lee ,  Cha Hun Ku ,  Sang Hun Kim ,  Tae Kyu Kim ,  Min Cheol Choi

IPC分类号： H01M2/16 ,  H01M2/14 ,  H01M10/04

摘要： The present invention relates to an electrode assembly. The electrode assembly comprises: a first separator sheet; and first and second electrode sheets respectively adhering to both sides of the first separator sheet, wherein both the surfaces of the first separator sheet have adhesion different from each other, the first electrode sheet adheres to a first surface, which has relatively high adhesion, of both the surfaces, and the second electrode sheet adheres to a second surface, which has relatively low adhesion, of both the surfaces.

公开(公告)号：US20150270524A1

公开(公告)日：2015-09-24

申请号：US14435779

申请日：2013-11-18

申请人： LG CHEM, LTD.

发明人： Ji Young Hwang ,  Byung Kyu Jung ,  Yoon Tae Hwang ,  Se Woo Yang ,  Suk Ky Chang ,  Sung Jong Kim ,  Min Soo Park ,  Cha Hun Ku

IPC分类号： H01M2/16 ,  H01M6/02 ,  H01M2/14 ,  H01M10/0587 ,  H01M10/04 ,  H01M6/16 ,  H01M10/0569

CPC分类号： H01M2/1686 ,  C09J7/22 ,  C09J7/38 ,  C09J7/401 ,  C09J2201/606 ,  C09J2201/622 ,  C09J2203/33 ,  C09J2433/00 ,  H01M2/14 ,  H01M2/145 ,  H01M2/1653 ,  H01M6/02 ,  H01M6/164 ,  H01M10/0431 ,  H01M10/0569 ,  H01M10/0587 ,  H01M2300/0028

摘要： The present application relates to a swelling tape and a method of filling a gap. The swelling tape is, for example, applied in gaps in which a fluid is present and deformed into a three-dimensional shape to fill the gaps and fix in place objects separated by gaps as needed.

摘要翻译： 本申请涉及膨胀带和填充间隙的方法。 膨胀带例如应用在存在流体的间隙中，并且变形为三维形状以填充间隙，并且根据需要将由间隙分离的物体固定在适当位置。

公开(公告)号：US11355818B2

公开(公告)日：2022-06-07

申请号：US16466144

申请日：2018-04-17

申请人： LG Chem, Ltd.

发明人： Tae Kyu Kim ,  Cha Hun Ku ,  Jung Kwan Pyo

IPC分类号： H01M4/04 ,  H01M50/46 ,  H01M4/62

摘要： The present invention relates to an apparatus and method for manufacturing an electrode assembly. The method for manufacturing the electrode assembly comprises a melting induction process of inducing melting on an outer surface of a separator by a melting induction solvent to increase an adhesion force of an interface between an electrode and the separator and a lamination process of alternately combining and laminating the electrode and the separator, wherein the melting induction process comprises a vaporization process of vaporizing the melting induction solvent to form a space that is humidified by vapor, and the electrode and the separator are disposed in the space that is humidified by the vapor to induce the uniform melting on the outer surface of the separator.

公开(公告)号：US11342576B2

公开(公告)日：2022-05-24

申请号：US16612908

申请日：2018-11-16

申请人： LG Chem, Ltd.

发明人： Jung Kwan Pyo ,  Cha Hun Ku ,  Su Taek Jung ,  Seok Jin Kim ,  Tai Jin Jung

IPC分类号： H01M10/04 ,  H01M50/46 ,  H01M50/403

摘要： The present invention provides a method for manufacturing an electrode assembly, comprising: interposing a plurality of first electrodes one by one, which are spaced apart from each other, between two separators; stacking a second electrode on each of outer surfaces of the separators on each of both sides of the first electrode at positions that are skipped by one of the plurality of positions on which the first electrodes are disposed to alternately continuously form a bi-cell, in which the second electrode/the separator/the first electrode/the separator/the second electrode are sequentially stacked, and a half-cell, in which the separator/the first electrode/the separator are sequentially stacked; cutting the stack into a unit cell in which one bi-cell and one half-cell are connected to each other; folding the unit cell so that the bi-cell and the half-cell are stacked; and stacking a plurality of folded unit cells to manufacture the electrode assembly.

公开(公告)号：US11038242B2

公开(公告)日：2021-06-15

申请号：US16678462

申请日：2019-11-08

申请人： LG Chem, Ltd.

发明人： Sang Kyun Lee ,  Cha Hun Ku ,  Sang Hun Kim ,  Tae Kyu Kim ,  Min Cheol Choi

IPC分类号： H01M50/46 ,  H01M10/04 ,  H01M50/403

摘要： The present invention relates to an electrode assembly. The electrode assembly comprises: a first separator sheet; and first and second electrode sheets respectively adhering to both sides of the first separator sheet, wherein both the surfaces of the first separator sheet have adhesion different from each other, the first electrode sheet adheres to a first surface, which has relatively high adhesion, of both the surfaces, and the second electrode sheet adheres to a second surface, which has relatively low adhesion, of both the surfaces.

公开(公告)号：US20200127334A1

公开(公告)日：2020-04-23

申请号：US16072401

申请日：2017-09-04

申请人： LG Chem, Ltd.

发明人： Jung Kwan Pyo ,  Sung Jong Kim ,  Sang Hyun Koo ,  Soo Ryoung Kim ,  Cha Hun Ku ,  Sung Min Hwang

IPC分类号： H01M10/0583 ,  H01M10/04 ,  H01M2/16

摘要： The present invention relates to an electrode assembly and a method for manufacturing the same, and more particularly, to an electrode assembly which is capable of improving an alignment of a secondary battery, realizing a high-capacity battery, and simplifying manufacturing processes of the secondary battery, and a method for manufacturing the same.The electrode assembly includes an electrode stack in which a plurality of first electrodes spaced apart from each other are disposed between two separators and second electrodes attached to both outer surfaces of the electrode stack at alternate positions of a plurality of positions on which the first electrodes are disposed, wherein, in the electrode stack, an area between the first electrode and the adjacent first electrode is folded.