公开(公告)号：US20240396162A1

公开(公告)日：2024-11-28

申请号：US18624375

申请日：2024-04-02

Applicant: LG ENERGY SOLUTION, LTD.

Inventor： Ji Su LEE ,  Kyung Ryun KA ,  Hye Won KIM ,  Dong Wook SUNG

IPC: H01M50/414 ,  H01M50/443 ,  H01M50/491

Abstract: A separator for an electrochemical device includes a porous polymer substrate; a coating layer provided on at least one surface of the porous polymer substrate and including a first polymer binder and inorganic particles; and an adhesive layer provided on the coating layer and including a second polymer binder, in which the first polymer binder is a solution type binder, and a content of the first polymer binder included in a portion of the coating layer adjacent to the porous polymer substrate is greater than a content of the first polymer binder included in another portion facing away from the porous polymer substrate.

公开(公告)号：US20230411597A1

公开(公告)日：2023-12-21

申请号：US18035626

申请日：2022-10-13

Applicant: LG ENERGY SOLUTION, LTD.

Inventor： Ji Su LEE ,  Kyung Ryun KA ,  In Hyouk SUNG

IPC: H01M4/36 ,  H01M10/052 ,  H01M50/46 ,  H01M50/403 ,  H01M10/42 ,  H01M50/538 ,  H01M4/04

CPC classification number: H01M4/364 ,  H01M10/052 ,  H01M50/461 ,  H01M4/0404 ,  H01M10/4235 ,  H01M50/538 ,  H01M50/403

Abstract: An electrode for a lithium secondary battery may include an electrode mixture layer and an electrode current collector. The electrode mixture layer may be disposed on at least one of a first surface and a second surface of the electrode current collector. The electrode current collector may include an electrode tab extending from an outer periphery of the electrode mixture layer as a portion other than a portion at which the electrode mixture layer is formed. An adhesive coating portion may be disposed at at least a portion of an upper surface of the electrode tab, at at least a portion of an upper surface of the electrode mixture layer, or at both of the foregoing. The electrode may be coupled to a separator via the adhesive coating portion.

公开(公告)号：US20240216946A1

公开(公告)日：2024-07-04

申请号：US17924535

申请日：2021-12-14

Applicant: LG ENERGY SOLUTION, LTD.

Inventor： In Hyouk SUNG ,  Kyung Ryun KA ,  Ji Su LEE

IPC: B05D1/20 ,  B05C3/12 ,  B05C9/14 ,  B05D3/02 ,  B05D7/00

CPC classification number: B05D1/20 ,  B05C3/125 ,  B05C9/14 ,  B05D3/0254 ,  B05D7/586

Abstract: A coating apparatus for continuously forming a coating layer on each surface of a substrate film includes a water tank located on a movement path of the substrate film, a water tank partition vertically located in the water tank, the water tank partition being configured to partition an inner space of the water tank into two zones, including a first water tank portion and a second water tank portion, a roller unit configured to continuously transfer the substrate film, and a heating unit located outside the water tank. The water tank partition is located spaced apart from an inner bottom surface of the water tank by a predetermined distance.

公开(公告)号：US20250158067A1

公开(公告)日：2025-05-15

申请号：US18832293

申请日：2023-10-18

Applicant: LG ENERGY SOLUTION, LTD.

Inventor： In Hyouk SUNG ,  Dong Wook SUNG ,  Kyung Ryun KA ,  Min Ji KIM ,  Ji Su LEE

IPC: H01M4/62 ,  H01M4/02 ,  H01M4/04 ,  H01M10/04 ,  H01M50/449 ,  H01M50/609

Abstract: Disclosed is a secondary battery that can increase the adhesive force between the anode and the separator on an electrolyte. The secondary battery includes an anode, a cathode, a separator which is between the anode and the cathode and includes a porous substrate and a coating layer on at least one surface of the porous substrate, and an electrolyte, The anode contains a binder polymer including a first repeating unit, the coating layer includes a second repeating unit, and the first repeating unit and the second repeating unit are bonded to each other.

公开(公告)号：US20240039123A1

公开(公告)日：2024-02-01

申请号：US18021746

申请日：2022-06-22

Applicant: LG ENERGY SOLUTION, LTD.

Inventor： Kyung Ryun KA ,  In Hyouk SUNG ,  Ji Su LEE ,  Dong Wook SUNG

IPC: H01M50/491 ,  H01M50/417 ,  H01M50/451 ,  H01M50/431 ,  H01M50/107

CPC classification number: H01M50/491 ,  H01M50/417 ,  H01M50/451 ,  H01M50/431 ,  H01M50/107

Abstract: A separator including a separator substrate including a porous material and an inorganic layer on at least one surface of the separator substrate. Each of the separator substrate and the inorganic layer has porosity related to permeability of the separator: (10×porosity of separator substrate)−(4×porosity of inorganic layer)≤permeability of separator.

公开(公告)号：US20230387547A1

公开(公告)日：2023-11-30

申请号：US18032713

申请日：2022-09-15

Applicant: LG ENERGY SOLUTION, LTD.

Inventor： Ji Su LEE ,  In Hyouk SUNG ,  Kyung Ryun KA

IPC: H01M50/446 ,  H01M50/403 ,  H01M50/449 ,  H01M50/431

CPC classification number: H01M50/446 ,  H01M50/403 ,  H01M50/449 ,  H01M50/431 ,  H01M10/052

Abstract: A separator including a separator substrate having a porous structure and a coating layer on at least one surface of the separator substrate. The coating layer includes a surface-modified inorganic material, wherein the surface-modified inorganic material includes particles having a core-shell structure wherein a polymer is bonded to a surface of an inorganic particle.