公开(公告)号：US20190245232A1

公开(公告)日：2019-08-08

申请号：US16343522

申请日：2017-12-22

Applicant: KOLON INDUSTRIES, INC.

Inventor： Jung Ho KIM ,  Hyeong Su KIM

IPC: H01M8/1004 ,  C01B32/18 ,  C01B32/194 ,  C04B41/48 ,  C09C1/56 ,  C09C3/10 ,  H01M4/88 ,  C01B32/168

CPC classification number: H01M8/1004 ,  C01B32/168 ,  C01B32/18 ,  C01B32/194 ,  C04B41/48 ,  C04B41/4892 ,  C09C1/56 ,  C09C3/10 ,  H01M4/86 ,  H01M4/88 ,  H01M4/8803 ,  Y02E60/523 ,  Y02P70/56

Abstract: Disclosed are a method for manufacturing an electrode, an electrode manufactured thereby, a membrane-electrode assembly including the electrode, and a fuel cell containing the membrane-electrode assembly. The method includes the steps of: preparing an electrode forming composition by mixing a catalyst with an ionomer; applying a low-frequency acoustic energy to the electrode forming composition to perform resonant vibratory mixing so as to coat the ionomer on the surface of the catalyst; and coating the electrode forming composition to manufacture an electrode.

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：US20240304829A1

公开(公告)日：2024-09-12

申请号：US18260400

申请日：2022-08-05

Applicant: KOLON INDUSTRIES, INC.

Inventor： Hyeong Su KIM ,  Jun Young KIM ,  Nak Won KONG ,  Jung Ho KIM ,  Ju Sung LEE ,  Chan Mi PARK

IPC: H01M4/90 ,  H01M4/86 ,  H01M4/88 ,  H01M4/96

CPC classification number: H01M4/9041 ,  H01M4/8657 ,  H01M4/881 ,  H01M4/8882 ,  H01M4/8892 ,  H01M4/9008 ,  H01M4/9083 ,  H01M4/96 ,  H01M2004/8689

Abstract: The present invention relates to an electrode for a fuel cell, comprising a non-platinum catalyst and a graphene layered structure, and a membrane-electrode assembly comprising the same and, more specifically, to a membrane-electrode assembly for a fuel cell and a fuel cell comprising the same, which implement excellent electrode efficiency through relatively inexpensive transition metals while not using platinum, by stacking alternately with a graphene layer, a catalyst layer comprising both a non-platinum catalyst complex including a carbon support, nitrogen, and non-platinum transition metal, and a conductive polymer.

公开(公告)号：US20220158208A1

公开(公告)日：2022-05-19

申请号：US17592595

申请日：2022-02-04

Applicant: KOLON INDUSTRIES, INC.

Inventor： Jung Ho KIM ,  Hyeong Su KIM

IPC: H01M8/1004 ,  C01B32/18 ,  C01B32/194 ,  C01B32/168 ,  C09C1/56 ,  C09C3/10 ,  H01M4/88 ,  C04B41/48 ,  H01M4/86

Abstract: Disclosed are a method for manufacturing an electrode, an electrode manufactured thereby, a membrane-electrode assembly including the electrode, and a fuel cell containing the membrane-electrode assembly. The method includes the steps of: preparing an electrode forming composition by mixing a catalyst with an ionomer; applying a low-frequency acoustic energy to the electrode forming composition to perform resonant vibratory mixing so as to coat the ionomer on the surface of the catalyst; and coating the electrode forming composition to manufacture an electrode.

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：US20200335799A1

公开(公告)日：2020-10-22

申请号：US16079815

申请日：2017-03-27

Applicant: KOLON INDUSTRIES, INC.

Inventor： Jung Ho KIM ,  Han Moon CHO ,  Hyeong Su KIM ,  Gyong Bum KO

IPC: H01M4/90 ,  H01M4/88 ,  H01M4/86 ,  H01M8/1018

Abstract: A nanostructured electrode for a polymer electrolyte fuel cell, a manufacturing method thereof, and a fuel cell including the nanostructured electrode are provided. The nanostructured electrode includes: a three-dimensional nanostructure including a nanoporous aerogel and an ionomer surrounding the surface of the aerogel; and a catalyst dispersed in the three-dimensional nanostructure. The electrode can obtain excellent current density and power density even with a relatively small amount of catalyst by having improved catalyst performance due to nanostructuring of an ionomer, uniform catalyst dispersion and increased catalyst utilization ratio, can also obtain a price reduction effect through a decrease in the amount of catalyst used, and is excellent in the mass transfer efficiency and low humidification performance.

公开(公告)号：US20250015308A1

公开(公告)日：2025-01-09

申请号：US18708674

申请日：2022-11-23

Applicant: KOLON INDUSTRIES, INC.

Inventor： Jung Ho KIM ,  Jun Young KIM ,  Kah Young SONG ,  Nak Won KONG ,  Eun Su LEE ,  Hyeong Su KIM ,  Ju Sung LEE ,  Kyoung Sik NAM ,  Chan Mi PARK

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

Abstract: A catalyst for a fuel cell with improved durability is provided. A catalyst for a fuel cell according to the present disclosure comprises a second composite in which a plurality of first composites comprising a support and metal catalyst particles supported on the support, are aggregated and a nitrogen-containing protective layer coated on the surface of the second composite.

公开(公告)号：US20250006965A1

公开(公告)日：2025-01-02

申请号：US18709558

申请日：2022-11-23

Applicant: KOLON INDUSTRIES, INC.

Inventor： Jung Ho KIM ,  Jun Young KIM ,  Kah Young SONG ,  Nak Won KONG ,  Eun Su LEE ,  Hyeong Su KIM ,  Ju Sung LEE ,  Kyoung Sik NAM ,  Chan Mi PARK

IPC: H01M8/1004 ,  H01M8/10 ,  H01M8/1032

Abstract: A membrane-electrode assembly with improved durability is provided. An embodiment of the present invention provides a membrane-electrode assembly comprising: a polymer electrolyte membrane having concavo-convex portions on at least one surface thereof and a catalyst layer disposed on the polymer electrolyte membrane, wherein the catalyst layer includes a first catalyst layer loaded into the inside of the concavo-convex portion and a second catalyst layer disposed on the polymer electrolyte membrane, the first catalyst layer being interposed between the polymer electrolyte membrane and the second catalyst layer.