公开(公告)号：US20140072851A1

公开(公告)日：2014-03-13

申请号：US14080458

申请日：2013-11-14

Applicant: LG CHEM, LTD.

Inventor： Kyung Su OH ,  Cha-Hun KU ,  Sung Jong KIM

IPC: H01M2/26

CPC classification number: H01M2/26 ,  H01M2/0413 ,  H01M2/22 ,  H01M4/662 ,  H01M4/667 ,  H01M10/0431 ,  H01M10/0587

Abstract: Disclosed is a secondary battery having a novel structure in which a jelly-roll type electrode assembly (“jelly-roll”) in which a cathode including a cathode active material coated portion on at least one surface of a cathode current collector, an anode including an anode active material coated portion on at least one surface of an anode current collector, and a separator disposed therebetween are wound and an electrolyte are accommodated in a battery case, and at least one of a cathode lead coupled to a cathode uncoated portion and an anode lead coupled to an anode uncoated portion includes a first metal layer used for coupling with an electrode uncoated portion and/or coupling with a battery case and a second metal layer having a relatively lower resistance than that of the first metal layer, wherein the first and second metal layers are coupled to each other.

Abstract translation: 公开了一种具有新颖结构的二次电池，其中在阴极集电器的至少一个表面上包括阴极活性材料涂覆部分的阴极，包含阴极活性材料涂覆部分的阴极的“胶卷型”电极组件 在阳极集电器的至少一个表面上的阳极活性材料涂覆部分和设置在其间的隔膜被缠绕并且电解质被容纳在电池壳体中，并且阴极引线中的至少一个耦合到阴极未涂覆部分和 耦合到阳极未涂覆部分的阳极引线包括用于与电极未涂覆部分耦合和/或与电池壳体耦合的第一金属层和具有比第一金属层的电阻相对较低的电阻的第二金属层，其中第一 并且第二金属层彼此耦合。

公开(公告)号：US20130280570A1

公开(公告)日：2013-10-24

申请号：US13939650

申请日：2013-07-11

Applicant: LG CHEM, LTD.

Inventor： Sung Jong KIM ,  Byungkyu JUNG ,  Cha-Hun KU

IPC: H01M10/02 ,  C09J7/02 ,  H01M10/04

CPC classification number: C09J7/241 ,  B32B27/285 ,  B32B27/308 ,  B32B27/36 ,  B32B27/38 ,  B32B27/40 ,  B32B37/02 ,  C09J7/22 ,  C09J7/245 ,  C09J7/25 ,  C09J7/26 ,  C09J7/29 ,  C09J133/08 ,  C09J2203/33 ,  C09J2401/006 ,  C09J2433/00 ,  C09J2433/006 ,  C09J2463/00 ,  C09J2463/006 ,  C09J2475/00 ,  C09J2475/006 ,  H01M2/10 ,  H01M4/04 ,  H01M6/005 ,  H01M10/02 ,  H01M10/04 ,  H01M10/0431 ,  H01M10/049 ,  Y10T29/49114 ,  Y10T428/24521 ,  Y10T428/28 ,  Y10T428/2852 ,  Y10T428/287 ,  Y10T428/2891

Abstract: An electrode assembly and a battery are provided. The electrode assembly may be effectively fixed inside a can as a pressure-sensitive adhesive tape attached to an outer circumferential surface of the electrode assembly is formed into a 3D shape by an electrolyte. Thus, the electrode assembly does not move and rotate inside the can due to external vibration or impact and damage of welded regions of a tab or disconnection of inner circuits can be prevented.

Abstract translation: 提供电极组件和电池。 电极组件可以有效地固定在罐内，因为附着在电极组件的外周表面上的压敏粘合带通过电解质形成3D形状。 因此，由于外部振动或冲击，电极组件不会在罐内移动和旋转，并且可以防止突片的焊接区域的损坏或内部电路的断开。

公开(公告)号：US20130230749A1

公开(公告)日：2013-09-05

申请号：US13865227

申请日：2013-04-18

Applicant: LG CHEM, LTD.

Inventor： Yong-Chan KIM ,  Duk-Hyun RYU ,  Cha-Hun KU ,  Nak-Gi SUNG

IPC: H01M10/04

CPC classification number: H01M10/0431 ,  H01M2/1653 ,  H01M10/0587 ,  H01M10/4235

Abstract: A cylindrical secondary battery is disclosed. The cylindrical secondary battery includes a jelly-roll type electrode assembly, a center pin inserted to penetrate the central portion of the jelly-roll type electrode assembly, a can accommodating the electrode assembly and the center pin, a cap assembly coupled to an upper opening of the can to seal the can, and a gasket interposed between the can and the cap assembly. In the jelly-roll type electrode assembly, a first electrode, a second electrode and a separator interposed between the two electrodes are wound together. An electrode tape is attached to at least one surface of an uncoated portion of the first electrode at a core of the jelly-roll type electrode assembly. The electrode tape includes a polymeric resin film having a melting point of at least 130° C.

Abstract translation: 公开了一种圆柱形二次电池。 圆筒形二次电池包括胶卷型电极组件，插入以插入胶卷型电极组件的中心部分的中心销，容纳电极组件和中心销的容器，联接到上部开口 罐头可以密封罐子，以及插入罐和盖组件之间的垫圈。 在胶卷式电极组件中，将介于两个电极之间的第一电极，第二电极和隔膜缠绕在一起。 在胶卷式电极组件的芯部，将电极带附接到第一电极的未涂覆部分的至少一个表面。 电极带包括熔点至少为130℃的聚合物树脂膜

公开(公告)号：US20190027777A1

公开(公告)日：2019-01-24

申请号：US16066757

申请日：2017-09-26

Applicant: LG CHEM, LTD.

Inventor： Sang-Kyun LEE ,  Ju-Hyeon CHO ,  Duck-Hoe KIM ,  Cha-Hun KU

IPC: H01M10/04

Abstract: A unit cell for a secondary battery includes a central electrode having a first polarity, a pair of separators respectively laminated on both surfaces the central electrode, and an upper electrode and a lower electrode respectively laminated on the pair of separators and having a second polarity, wherein the separator has a patterned adhesive force.

公开(公告)号：US20130295442A1

公开(公告)日：2013-11-07

申请号：US13932432

申请日：2013-07-01

Applicant: LG CHEM, LTD.

Inventor： Sung-Jong KIM ,  Cha-Hun KU

IPC: H01M10/04

CPC classification number: H01M10/049 ,  H01M2/022 ,  H01M2/0426 ,  Y10T29/49108

Abstract: Disclosed is a method for manufacturing a secondary battery, which may increase a capacity of the secondary battery and effectively prevent movement of an electrode assembly. The method manufactures a secondary battery having no beading portion at a battery can and includes preparing a battery can having an outer protrusion protruding outwards on the outer circumference thereof, inserting an electrode assembly into the battery can, and applying a pressure to the outer protrusion of the battery can toward the inside of the battery can so that an inner protrusion is formed on the inner circumference of the battery can.

Abstract translation: 公开了二次电池的制造方法，其可以增加二次电池的容量并且有效地防止电极组件的移动。 该方法制造在电池壳体上没有凸缘部分的二次电池，并且包括制备具有在其外周向外突出的外部突起的电池壳体，将电极组件插入电池壳体中，并且向外部突出部施加压力 电池可以朝向电池壳体的内部，从而在电池壳体的内周上形成内部突起。

公开(公告)号：US20130273401A1

公开(公告)日：2013-10-17

申请号：US13917708

申请日：2013-06-14

Applicant: LG CHEM, LTD.

Inventor： Je-Jun LEE ,  Sung-Jong KIM ,  Cha-Hun KU

IPC: H01M2/08

CPC classification number: H01M2/08 ,  H01M2/022 ,  H01M2/0413 ,  H01M2/1241 ,  H01M2/345 ,  H01M2/348 ,  H01M2200/106

Abstract: Provided is a cylindrical secondary battery, comprising an electrode assembly having a cathode plate, an anode plate, and a separator interposed therebetween; a case for receiving the electrode assembly; a cap assembly for sealing an open-end of the case; and a gasket interposed between the case and the cap assembly, wherein the gasket is made of a polymer resin having a melting point of 200° C. or higher and a hardness of 100D or less.

Abstract translation: 本发明提供一种圆柱形二次电池，其包括具有阴极板，阳极板和间隔件的电极组件; 用于接收电极组件的壳体; 用于密封壳体的开口端的盖组件; 以及插入在所述壳体和所述盖组件之间的垫圈，其中所述垫圈由熔点为200℃以上且硬度为100D以下的聚合物树脂制成。

公开(公告)号：US20190355951A1

公开(公告)日：2019-11-21

申请号：US16315747

申请日：2017-08-10

Applicant: LG CHEM, LTD.

Inventor： Sang Kyun LEE ,  Ju Hyeon CHO ,  Cha-Hun KU ,  Seok Jin KIM ,  Duck Hoe KIM

IPC: H01M2/16 ,  H01M10/04 ,  B32B37/12 ,  H01M4/62

Abstract: An electrode assembly for a secondary battery having reduced internal resistance while adhesion between a separator and an electrode is maintained and having improved electrolyte impregnation the electrode assembly including a separator having a processed area having undergone a corona discharging process and a non-processed area.

公开(公告)号：US20190221811A1

公开(公告)日：2019-07-18

申请号：US16319072

申请日：2017-11-09

Applicant: LG CHEM, LTD.

Inventor： Tae-Kyu KIM ,  Cha-Hun KU ,  Won-Nyeon KIM

IPC: H01M2/16 ,  H01M10/058 ,  H01M10/0565 ,  H01M2/14 ,  H01M10/052

CPC classification number: H01M2/1673 ,  B32B37/0046 ,  H01M2/145 ,  H01M2/166 ,  H01M2/1686 ,  H01M10/052 ,  H01M10/0565 ,  H01M10/058

Abstract: The present disclosure provides a method for manufacturing a unit cell including the steps of: preparing an electrode and a separator individually, wherein the separator includes a porous polymer substrate and a porous coating layer disposed on at least one surface of the porous polymer substrate and including a mixture of inorganic particles with a binder polymer; applying a lamination solvent to the surface of the separator to be bound with the electrode; and carrying out lamination of the electrode with the separator before the lamination solvent is dried. The method according to the present disclosure can solve the problem of shrinking of a separator occurring in the conventional lamination process.

公开(公告)号：US20190131666A1

公开(公告)日：2019-05-02

申请号：US16095882

申请日：2017-12-11

Applicant: LG CHEM, LTD.

Inventor： Byeong-Kyu LEE ,  Kyung-Jae LEE ,  Su-Taek JUNG ,  Min-Cheol CHOI ,  Cha-Hun KU

IPC: H01M10/42 ,  H01M2/02 ,  H01M2/36 ,  H01M10/052

Abstract: The present disclosure relates to a method for injecting an electrolyte to a pouch secondary battery which includes the steps of: interposing an electrode assembly between a first metal laminate film and a second metal laminate film forming a pouch casing, and sealing the edges of each of the films with an electrolyte inlet left therein, thereby providing a pouch secondary battery; mounting the pouch secondary battery between a first jig and a second jig, which are installed in a jig stand so as to have a controllable interval and form a gap space, with the electrolyte inlet facing up, and injecting an electrolyte through the electrolyte inlet; loading the jig stand to a vacuum chamber; increasing the width of the gap space by moving the first and the second jigs so that the area occupied by the electrolyte may be localized in the lower part of the pouch casing, and then forming vacuum atmosphere; and moving the first and the second jigs while maintaining the vacuum atmosphere so that the width of the gap space may be reduced gradually and the liquid surface of the electrolyte may be lifted gradually to a position higher than the top of the electrode assembly.

公开(公告)号：US20130216870A1

公开(公告)日：2013-08-22

申请号：US13859071

申请日：2013-04-09

Applicant: LG CHEM, LTD.

Inventor： Sung-Jong KIM ,  Cha-Hun KU ,  Je-Jun LEE

IPC: H01M2/08 ,  H01M2/34 ,  H01M2/12

CPC classification number: H01M2/08 ,  H01M2/0217 ,  H01M2/022 ,  H01M2/024 ,  H01M2/0413 ,  H01M2/0426 ,  H01M2/046 ,  H01M2/0473 ,  H01M2/12 ,  H01M2/1241 ,  H01M2/34 ,  H01M2/348 ,  H01M10/0422 ,  H01M2200/106

Abstract: Cap assembly, coupled to an open end of a battery can free from a beading portion, includes a top cap at an uppermost portion in a protrusive form forming a cathode terminal, a safety element below the top cap contacting the top cap, a safety vent contacting the safety element, a gasket surrounding outer circumferences of top cap, the safety element and vent, a cover surrounding the gasket so the top cap, safety element and vent adhere to each other, and a welding member at an upper portion of the cover having an outer end protruding more outwards than the outer end of the cover placed on the open end of the battery can, the welding member having a first notch at an upper surface thereof, protruding more than the outer end of the cover, and welded to the open end of the battery can where first notch is formed.

Abstract translation: 盖子组件耦合到电池的开口端可以免于卷边部分，在最上部形成顶盖，形成阴极端子的突出形式，位于顶盖下方的安全元件接触顶盖，安全孔 接触安全元件，围绕顶盖的外周的垫圈，安全元件和通风口，围绕垫圈的盖，使得顶盖，安全元件和通风口彼此粘合，以及在盖的上部处的焊接构件 具有比放置在电池罐的开口端上的盖的外端更向外突出的外端，焊接构件在其上表面具有比罩的外端突出的第一凹口，并且焊接到 电池的开口端可以形成第一凹口。