公开(公告)号：US20230411633A1

公开(公告)日：2023-12-21

申请号：US18250841

申请日：2021-12-03

Applicant: KOLON INDUSTRIES, INC.

Inventor： Jung Ho KIM ,  Jun Young KIM ,  Gyong Bum KO ,  Sang II LEE ,  Kah Young SONG ,  Dong Jun CHO ,  Nak Won KONG ,  Hyeong Su KIM ,  Kyoung Sik NAM ,  Ju Sung LEE ,  Chan Mi PARK ,  Sun Young JEONG

IPC: H01M4/88 ,  H01M8/1004 ,  H01M4/92

CPC classification number: H01M4/8828 ,  H01M8/1004 ,  H01M4/926 ,  H01M4/8892

Abstract: The present invention relates to a catalyst layer for a fuel cell, a method for producing the catalyst layer, and a membrane-electrode assembly and a fuel cell including the catalyst layer. More particularly, the invention relates to a catalyst layer for a fuel cell, the catalyst layer including a catalyst, a heat dissipation material, and an ionomer and having an effect that the heat generated by an exothermic reaction in the catalyst layer can be efficiently discharged to the outside and a phenomenon of deterioration of a membrane-electrode assembly caused by temperature increase in the catalyst layer can be suppressed; a method for producing the catalyst layer; and a membrane-electrode assembly and a fuel cell, both including the catalyst layer.

公开(公告)号：US20180269491A1

公开(公告)日：2018-09-20

申请号：US15760287

申请日：2016-09-23

Applicant: KOLON INDUSTRIES, INC.

Inventor： Dong Jun CHO

IPC: H01M4/88 ,  H01M8/04298 ,  H01M8/1004 ,  H01M8/1018 ,  H01M4/86 ,  H01M4/92

CPC classification number: H01M4/881 ,  H01M4/8605 ,  H01M4/8642 ,  H01M4/8663 ,  H01M4/8668 ,  H01M4/8803 ,  H01M4/8828 ,  H01M4/92 ,  H01M8/0239 ,  H01M8/04298 ,  H01M8/1004 ,  H01M8/1007 ,  H01M8/1018 ,  H01M2008/1095 ,  Y02P70/56

Abstract: Disclosed are a membrane-electrode assembly for fuel cells, a method of manufacturing the same and a fuel cell system containing the same. The membrane-electrode assembly for fuel cells includes an anode and a cathode facing each other, and a polymer electrolyte membrane interposed between the anode and the cathode, wherein at least one of the anode and the cathode further includes a porous support and a catalyst layer for fuel cells disposed on one surface of the porous support. The electrode of the membrane-electrode assembly is a free-standing electrode, and the electrode has excellent adhesivity to the polymer electrolyte membrane and thus can prevent performance deterioration resulting from detachment of the electrode from the polymer electrolyte membrane during operation of fuel cells, and in particular, can secure high durability since the electrode is not readily detached even under harsh operation environments.

公开(公告)号：US20250046832A1

公开(公告)日：2025-02-06

申请号：US18714683

申请日：2022-12-01

Applicant: KOLON INDUSTRIES, INC.

Inventor： Dong Jun CHO

IPC: H01M8/0282 ,  H01M8/0202 ,  H01M8/10 ,  H01M8/1004 ,  H01M8/1018

Abstract: The present invention relates to a membrane-electrode assembly and a fuel cell comprising the same and, more specifically, to a membrane-electrode assembly and a fuel cell comprising the same, the membrane-electrode assembly comprising: a polymer electrolyte membrane; a sub-gasket formed to cover the circumferential portion of the polymer electrolyte membrane; and electrode layer formed on the central portion of the polymer electrolyte membrane while being spaced apart from the sub-gasket; an adhesive part formed between the sub-gasket and the electrode layer and on the polymer electrolyte membrane; and a gas diffusion layer formed on the electrode layer and the adhesive part, whereby the durability and catalyst usage rate of the membrane-electrode assembly are improved.

公开(公告)号：US20240030460A1

公开(公告)日：2024-01-25

申请号：US18258337

申请日：2021-11-30

Applicant: KOLON INDUSTRIES, INC.

Inventor： Jung Ho KIM ,  Gyong Bum KO ,  Jun Young KIM ,  Sang ll LEE ,  Kah Young SONG ,  Dong Jun CHO ,  Nak Won KONG ,  Hyeong Su KIM ,  Kyoung Sik NAM ,  Ju Sung LEE ,  Chan Mi PARK ,  Sun Young JEONG

IPC: H01M4/86 ,  H01M8/1004 ,  H01M4/92 ,  H01M4/88

CPC classification number: H01M4/8668 ,  H01M8/1004 ,  H01M4/926 ,  H01M4/8657 ,  H01M4/88 ,  H01M2008/1095

Abstract: Provided is a membrane-electrode assembly having improved binding strength between a polymer electrolyte membrane and a catalyst layer and improved durability of the catalyst layer. An embodiment of the present invention provides a membrane-electrode assembly including a polymer electrolyte membrane and a catalyst layer disposed on at least one surface of the polymer electrolyte membrane, wherein the catalyst layer contains a first composite and a second composite; the first composite contains a first catalyst containing a support and first metal particles supported on the support, and a first ionomer coated on the surface of the first catalyst; the second composite contains a second catalyst that contains second metal particles and is not supported on a support, and a second ionomer that is not coated on the surface of the second catalyst; and the first ionomer and the second ionomer are identical with or different from each other.

公开(公告)号：US20220278345A1

公开(公告)日：2022-09-01

申请号：US17637842

申请日：2020-10-30

Applicant: KOLON INDUSTRIES, INC.

Inventor： Dong Jun CHO

IPC: H01M8/1004 ,  H01M8/0273 ,  H01M8/0286

Abstract: According to a method and an apparatus for manufacturing a membrane-electrode assembly of the present invention, positioning holes are formed through a multi-layered lamination of an electrolyte membrane, electrodes, and sub-gasket films, in an area which is not included in a final product, and manifold holes of the membrane-electrode assembly are then quickly and accurately formed on the basis of the positioning holes. Therefore, the present invention can increase the productivity while lowering the defect rate of the membrane-electrode assembly.