Kolon Industries, Inc.

Gachon University of Industry-academic Cooperation Foundation

Gil Medical Center

Lg Innotek Co., Ltd.

Samsung Medison Co., Ltd.

Ham, Yun Rock

Kim, Jung Ho

Kim, Nagyon

Jung Ho Kim

Jong Min Lee

Kah-Young Song

Jusung Lee

Jun Young Kim

Ji Hwan Jeon

Jeung Ook Park

Sang Hun An

Kang Sik Kim

Jin Hee Lee

Kyung Mi An

Da Hae Hong

Kyoungsik Nam

Nakwon Kong

Chanmi Park

Jae Eui Shin

Min Whan Chang

Sung Wook Kwon

Ji Hye Choi

Myong Jae Lee

Kang Hee Han

Eun Hye Jang

Jin Ah Jeong

Yun Rock Ham

Woo Jin Jeon

Nagyon Kim

Te-Ik Sohn

Jeong-Geun Kim

Changmok Oh

Jaeho Heo

In-Gyu Je

Yearin Jun

Yeongran Yoo

Gunhee Kim

Yang Mo Yoo

Kyeojin Kim

Changhee Hong

A-Rang Im

Jung-Eun Park

Jin Bum Kang

A membrane-electrode assembly, a manufacturing method therefor, and a fuel cell comprising same are disclosed. The method for preparing a membrane-electrode assembly, of the present invention, comprises the steps of: forming a first electrode on a first surface of an electrolyte membrane; forming a first sub-gasket on the first surface of the electrolyte membrane by applying a first liquid material; forming a second electrode on a second surface of the electrolyte membrane; and forming a second sub-gasket on the second surface of the electrolyte membrane.

Membrane-electrode assembly, manufacturing method therefor, and fuel cell comprising same

Disclosed are a carbon-based carrier that is capable of increasing catalyst activity as much as that of a porous type while having excellent durability unique to that of a solid type, a catalyst comprising same, a membrane-electrode assembly comprising same, and a method for preparing same. The carbon-based carrier for a fuel cell catalyst of the present invention is a solid-type carrier, and has an outer surface area of 100-450 m/g, a mesopore volume of 0.25-0.65 cm/g, and a micropore volume of 0.01-0.05 cm/g.

Carbon-based carrier for fuel cell catalyst, catalyst comprising same, membrane-electrode assembly comprising same, and method for preparing same

Disclosed are: a membrane-electrode assembly having enhanced adhesion and interfacial durability between a polymer electrolyte membrane and electrodes; and a method for manufacturing a membrane-electrode assembly, in which, in forming electrodes by directly coating a catalyst slurry on a polymer electrolyte membrane, adhesion and interfacial durability between the polymer electrolyte membrane and the electrodes can be enhanced without a separate additional step, thus improving both the durability and the productivity of the membrane-electrode assembly. The method comprises the steps of: dispersing a catalyst and an ion conductor in a dispersion medium to obtain a catalyst slurry; applying the catalyst slurry onto a polymer electrolyte membrane; and drying the catalyst slurry applied onto the polymer electrolyte membrane to form an electrode. The dispersion medium is a solvent capable of forming a plurality of grooves on a surface of the polymer electrolyte membrane, and, when the electrode is formed through the drying step, at least some of the grooves are filled with the catalyst, the ion conductor, or a mixture thereof.

Membrane-electrode assembly and method for manufacturing same

The present invention provides a digestive organ endoscope system which allows a user to perceive whether or not the tip of an endoscope instrument inserted along a channel approaches the tip of an endoscope channel portion within a certain distance, thereby being capable of quickly inserting the endoscope instrument up to a position close to the tip of the endoscope channel portion, and thus, it is possible to reduce a procedure time and to prevent a digestive organ from being damaged due to instantaneous protrusion of the tip of the endoscope instrument occurring when the endoscope instrument is quickly inserted.

Digestive organ endoscope system

Growing community of inventors

Seoul, South Korea

Jung Ho Kim