公开(公告)号：EP3591736B1

公开(公告)日：2024-10-09

申请号：EP19183789.7

申请日：2019-07-02

IPC分类号： H01M50/446 ,  H01M50/403 ,  H01M50/42 ,  H01M50/431 ,  H01M50/451 ,  H01M50/489

CPC分类号： Y02E60/10 ,  H01M50/446 ,  H01M50/403 ,  H01M50/451 ,  H01M50/431 ,  H01M50/489 ,  H01M50/42

公开(公告)号：EP4425681A2

公开(公告)日：2024-09-04

申请号：EP24153096.3

申请日：2024-01-22

申请人： LG Energy Solution, Ltd.

发明人： KA, Kyung Ryun ,  SUNG, Dong Wook ,  KIM, Min Ji ,  LEE, Seung Hyun ,  HWANG, Seon Woo

IPC分类号： H01M50/446 ,  H01M50/403 ,  H01M50/417 ,  H01M50/42 ,  H01M50/426 ,  H01M50/443 ,  H01M50/449 ,  H01M50/489 ,  H01M10/052

CPC分类号： H01M10/052 ,  H01M50/403 ,  H01M50/446 ,  H01M50/449 ,  H01M50/443 ,  H01M50/417 ,  H01M50/42 ,  H01M50/426 ,  H01M50/489

摘要： The present disclosure relates to a separator for an electrochemical device, an electrochemical device comprising the same, and a method for manufacturing the same, and specifically, to a separator for an electrochemical device, which can improve resistance and maintain porosity after lamination by including a polyvinylidene-based binder containing a low content of hexafluoropropylene and/or a polyolefin-based binder, an electrochemical device comprising the same, and a method for manufacturing the same.

公开(公告)号：EP4366069A3

公开(公告)日：2024-08-07

申请号：EP24163130.8

申请日：2008-03-06

申请人： LG Energy Solution, Ltd. ,  Toray Industries, Inc.

发明人： PARK, Jong-Hyeok ,  LEE, Sang-Young ,  HONG, Jang-Hyuk ,  NAM, Moon-Ja ,  YOO, Jung-A ,  KIM, Sang-Seop ,  HAN, Chang-Hun

IPC分类号： H01M50/443 ,  H01M50/446 ,  H01M50/451 ,  H01M50/457 ,  H01M50/489 ,  H01M50/491 ,  H01M10/052

CPC分类号： H01M10/052 ,  Y02E60/10 ,  H01M50/446 ,  Y02P70/50 ,  H01M50/451 ,  H01M50/457 ,  H01M50/491 ,  H01M50/443 ,  H01M50/489

摘要： An organic/inorganic composite separator includes a porous substrate having a plurality of pores; and a porous coating layer formed on at least one surface of the porous substrate with a plurality of inorganic particles and a binder polymer. The binder polymer is a copolymer including: (a) a first monomer unit having a contact angle to a water drop in the range from o° to 49°; and (b) a second monomer unit having a contact angle to a water drop in the range from 50° to 130°. This organic/inorganic composite separator has excellent thermal stability, so it may restrain an electric short circuit between a cathode and an anode. In addition, the separator may prevent inorganic particles in the porous coating layer from being extracted during an assembling process of an electrochemical device, thereby improving stability of an electrochemical device.

公开(公告)号：EP4358274A3

公开(公告)日：2024-08-07

申请号：EP24154133.3

申请日：2010-08-11

申请人： LG Energy Solution, Ltd. ,  Toray Industries, Inc.

发明人： Lee, Joo-Sung ,  Hong, Jang-Hyuk ,  Kim, Jong-Hun

IPC分类号： H01M10/0525 ,  H01M50/403 ,  H01M50/414 ,  H01M50/417 ,  H01M50/42 ,  H01M50/426 ,  H01M50/429 ,  H01M50/434 ,  H01M50/437 ,  H01M50/443 ,  H01M50/446 ,  H01M50/451 ,  H01M50/457 ,  H01M50/46 ,  H01M50/491

CPC分类号： H01M10/0525 ,  Y10T29/49112 ,  H01M50/461 ,  H01M50/446 ,  H01M50/403 ,  H01M50/414 ,  H01M50/434 ,  H01M50/443 ,  H01M50/451 ,  H01M50/437 ,  H01M50/429 ,  H01M50/417 ,  H01M50/491 ,  H01M50/426 ,  H01M50/42 ,  H01M50/457 ,  Y02E60/10

摘要： Disclosed is a separator for an electrochemical device. The separator has good bondability to electrodes and prevents inorganic particles from detaching during an assembling process of an electrochemical device.

公开(公告)号：EP4407775A1

公开(公告)日：2024-07-31

申请号：EP22881355.6

申请日：2022-10-12

申请人： LG Energy Solution, Ltd.

发明人： LEE, So-Yeong ,  PARK, So-Jung ,  BAE, Won-Sik ,  LEE, Jong-Yoon ,  JEONG, So-Mi

IPC分类号： H01M50/451 ,  H01M50/446 ,  H01M50/463 ,  H01M50/489 ,  H01M50/417 ,  H01M10/04 ,  H01M10/058 ,  H01M50/531

CPC分类号： Y02E60/10 ,  H01M50/489 ,  H01M50/446 ,  H01M50/451 ,  H01M50/463 ,  H01M10/04 ,  H01M10/058 ,  H01M50/531 ,  H01M50/417

摘要： Disclosed is a separator including a separator substrate and an inorganic coating layer disposed on at least one surface of the substrate, wherein a concave pattern portion having a concave pattern is applied merely at the outer circumferential end of the separator substrate. The separator may show excellent resistance characteristics, while ensuring high binding force between the separator substate and the inorganic coating layer by virtue of such a structural feature. In addition, in the electrochemical device including the separator, the concave pattern portion at the outer circumferential end of the separator is disposed in such a manner that it may be overlapped with the tab portion of an electrode, when the separator is applied to an electrode assembly. In this manner, it is possible to prevent lithium plating.

公开(公告)号：EP4404367A2

公开(公告)日：2024-07-24

申请号：EP24181073.8

申请日：2019-06-21

申请人： LG Energy Solution, Ltd.

发明人： Park, Su-Jin ,  Kim, Chan-Jong ,  Lee, Sang-Joon

IPC分类号： H01M50/443

CPC分类号： H01M10/052 ,  H01G11/52 ,  Y02E60/10 ,  H01M50/403 ,  H01M50/417 ,  H01M50/446 ,  H01M50/451 ,  H01M50/457 ,  H01M50/489 ,  H01M50/491 ,  H01G9/02 ,  H01M50/409 ,  H01M50/443

摘要： Provided is a separator for an electrochemical device. The separator includes a porous substrate made of a porous polymer film having an excellent compressibility and permanent strain, wherein the porous substrate has excellent physical strength and durability and ensures a high breakdown voltage while using a heat resistant layer having a small thickness, and thus shows a low possibility of short-circuit generation. In addition, the separator may further include a heat resistant layer including inorganic particles, on the surface of the porous substrate. Herein, it is possible to further improve the compressibility, maximum compressibility and permanent strain characteristics depending on types of inorganic particles.

公开(公告)号：EP3792993B1

公开(公告)日：2024-07-24

申请号：EP20159774.7

申请日：2020-02-27

IPC分类号： B01D69/12 ,  B01D69/14 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  B01D69/02 ,  H01M50/20 ,  H01M50/446 ,  H01M50/449

CPC分类号： H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M2220/2020130101 ,  H01M2220/1020130101 ,  B60L50/64 ,  H01M2300/000220130101 ,  B01D69/12 ,  B01D69/02 ,  B01D69/148 ,  H01M50/446 ,  H01M50/403 ,  H01M50/449 ,  H01M50/20 ,  Y02E60/10

公开(公告)号：EP4386969A1

公开(公告)日：2024-06-19

申请号：EP22881435.6

申请日：2022-10-17

申请人： LG Energy Solution, Ltd.

发明人： LEE, Myung-An ,  RYU, Duk-Hyun ,  WOO, Jae-Young

IPC分类号： H01M50/533 ,  H01M50/538 ,  H01M10/04 ,  H01M50/449 ,  H01M50/446 ,  H01M50/107 ,  H01M50/167 ,  H01M50/213

CPC分类号： Y02P70/50 ,  Y02E60/10 ,  H01M2220/2020130101 ,  H01M50/538 ,  H01M50/107 ,  H01M10/0431 ,  H01M10/0525 ,  H01M50/446 ,  H01M4/13 ,  H01M10/04 ,  H01M10/0587

摘要： An electrode assembly having a first electrode, a second electrode, and a separator positioned between the first electrode and the second electrode. The first electrode, the second electrode, and the separator are together wound about an axis in a winding direction resulting in a plurality of winding turns. Each of the first electrode and the second electrode has a first side and a second side opposite the first side in the direction of the axis, as well as a first, electrode active material portion, coated with an electrode active material, extending from the second side in the direction of the first side, and a second, uncoated portion extending from the first side in the direction of the second side to the active material of the first portion. Additionally, the first side of the first electrode and the first side of the second electrode are divided into a plurality of segments by a cut groove, and each of the segments has a first end corresponding to the first side of either the first or the second electrode. One or more of the segments are bent in a radial direction relative to the axis, at a point below the first end of each bent segment, and the separator has a side that is positioned between the bending point of each bent segment and a boundary between the first and the second portions.

公开(公告)号：EP4379943A2

公开(公告)日：2024-06-05

申请号：EP24170980.7

申请日：2008-02-05

申请人： LG Energy Solution, Ltd. ,  Toray Industries, Inc.

发明人： KIM, Seok-Koo ,  Sohn, Joon-Yong ,  PARK, Jong-Hyeok ,  JANG, Hyun-Min ,  SHIN, Byoung-Jin ,  LEE, Sang-Young ,  HONG, Jang-Hyuk

IPC分类号： H01M50/491

CPC分类号： H01M10/052 ,  H01M10/056 ,  H01M10/0562 ,  H01M2300/006820130101 ,  Y02E60/10 ,  H01M50/403 ,  H01M50/446 ,  H01M50/451 ,  H01M50/491

摘要： An organic/inorganic composite separator includes (a) a polyolefin porous substrate having pores; and (b) a porous active layer containing a mixture of inorganic particles and a binder polymer, with which at least one surface of the polyolefin porous substrate is coated, wherein the porous active layer has a peeling force of 5 gf/cm or above, and a thermal shrinkage of the separator after being left alone at 150°C. for 1 hour is 50% or below in a machine direction (MD) or in a transverse direction (TD). This organic/inorganic composite separator solves the problem that inorganic particles in the porous active layer formed on the porous substrate are extracted during an assembly process of an electrochemical device, and also it may prevent an electric short circuit between cathode and anode even when the electrochemical device is overheated.

公开(公告)号：EP4379895A1

公开(公告)日：2024-06-05

申请号：EP22849084.3

申请日：2022-06-23

申请人： Panasonic Energy Co., Ltd.

发明人： SUGII, Noriko ,  TANIGAWA, Kei

IPC分类号： H01M10/0587 ,  H01M10/0566 ,  H01M50/443 ,  H01M50/446 ,  H01M50/451 ,  H01M50/46 ,  H01M50/548

CPC分类号： Y02P70/50 ,  Y02E60/10 ,  H01M10/0587 ,  H01M10/0566 ,  H01M50/446 ,  H01M50/451 ,  H01M50/443 ,  H01M50/548 ,  H01M50/46

摘要： Provided is a non-aqueous electrolyte secondary battery that has improved cycle characteristics. A non-aqueous electrolyte secondary battery, which is one aspect of the present disclosure, comprises: a wound electrode body in which a positive electrode and a negative electrode are wound, with a first separator that is disposed on the winding inner side of the positive electrode and a second separator that is disposed on the winding outer side of the positive electrode being interposed therebetween; an electrolytic solution; and an exterior body which accommodates the electrode body and the electrolytic solution, wherein the first separator has a first base material layer and a first coating layer that is formed on the surface of the first base material layer which faces the positive electrode, the second separator has a second base material layer and a second coating layer that is formed on the surface of the second base material layer which faces the positive electrode, the first coating layer and the second coating layer each include a filler and an organic material, and the content of the filler in the first coating layer is higher than the content of the filler in the second coating layer.