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.