公开(公告)号：US20220231303A1

公开(公告)日：2022-07-21

申请号：US17614372

申请日：2020-06-26

Applicant: KOLON INDUSTRIES, INC. ,  KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Jun Young KIM ,  Nak-Won KONG ,  Kah-Young SONG ,  Hee-Tak KIM ,  Dong Wook LEE

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

Abstract: Disclosed are a fuel cell catalyst of which only a portion, which has relatively low catalytic activity and in which the greatest amount of platinum elution occurs and platinum oxide is easily formed, is selectively coated with a protective layer, and thus degradation due to the long-term operation of a fuel cell can be effectively prevented while also minimizing a deterioration in catalytic activity; a manufacturing method therefor; and a membrane-electrode assembly including same. The fuel cell catalyst of the present invention comprises: a nanoparticle containing platinum; and a protective layer which is selectively coated on only a portion of the surface of the nanoparticle and can suppress the oxidation of the platinum through electronic interaction with the nanoparticle.

公开(公告)号：US20210143461A1

公开(公告)日：2021-05-13

申请号：US16626049

申请日：2018-06-29

Applicant: KOLON INDUSTRIES, INC.

Inventor： Jun-Young KIM ,  Kah-Young SONG ,  Nak-Won KONG ,  Jin-Hwa LEE

IPC: H01M8/1004 ,  H01M8/1048 ,  H01M8/1053 ,  H01M8/1086 ,  H01M4/86 ,  H01M4/88

Abstract: A membrane-electrode assembly, a method for manufacturing the membrane-electrode assembly, and a fuel cell including the membrane-electrode assembly are disclosed. The membrane-electrode assembly includes: an ion exchange membrane; catalyst layers disposed on both sides of the ion exchange membrane respectively; and a functional modification layer disposed between the ion exchange membrane and each of the catalyst layers. The membrane-electrode assembly has a low hydrogen permeability without a reduction of hydrogen ion conductivity, has excellent interfacial bonding properties between the catalyst layers and the ion exchange membrane, and has excellent performance and durability under high temperature/low humidity conditions.