公开(公告)号：US12027736B2

公开(公告)日：2024-07-02

申请号：US17774147

申请日：2020-12-23

Applicant: KOLON INDUSTRIES, INC.

Inventor： Nak Won Kong ,  Kyoung Sik Nam ,  Kah Young Song ,  Jun Young Kim

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

CPC classification number: H01M8/1004 ,  H01M4/926 ,  H01M2004/8684

Abstract: Disclosed is a membrane-electrode assembly which can prevent the corrosion of a carbon-based carrier caused by reducing and/or stopping the supply of hydrogen gas, as well as platinum loss caused by such corrosion, without degrading the performance of a fuel cell, and thus can improve the reverse voltage durability of the fuel cell. Also disclosed are a method for manufacturing the membrane-electrode assembly, and a fuel cell including the membrane-electrode assembly. The membrane-electrode assembly according to the present invention includes: an electrolyte membrane having a first surface and a second surface opposite the first surface; an anode on the first surface; an OER catalyst layer on the first surface; and a cathode on the second surface, wherein the OER catalyst layer includes a catalyst for an oxygen-generating reaction, and at least a portion of the OER catalyst layer is disposed on the same layer as the anode.

公开(公告)号：US12148963B2

公开(公告)日：2024-11-19

申请号：US17775268

申请日：2020-12-23

Applicant: KOLON INDUSTRIES, INC.

Inventor： Nak Won Kong ,  Kyoung Sik Nam ,  Kah Young Song ,  Jun Young Kim ,  Ju Sung Lee

IPC: H01M8/1006 ,  H01M4/88 ,  H01M8/10 ,  H01M8/1018

Abstract: Disclosed is a membrane-electrode assembly having increased active area, improved fluid management capability, and decreased gas transfer resistance due to electrodes having patterned structures on both sides. Also disclosed are a method for manufacturing same, and a fuel cell comprising same. A membrane-electrode assembly according to the present invention comprises: a first electrode; a second electrode; and a polymer electrolyte membrane between the first and second electrodes, wherein the first electrode has a first surface facing the polymer electrolyte membrane and a second surface opposite the first surface, the first surface having a first patterned structure, and the second surface having a second patterned structure.