公开(公告)号：US10396383B2

公开(公告)日：2019-08-27

申请号：US15679562

申请日：2017-08-17

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Hyoung-Juhn Kim ,  So Young Lee ,  Jieon Chae ,  Jong Hyun Jang ,  Sung Jong Yoo ,  Jin Young Kim ,  Hyun Seo Park ,  Dirk Henkensmeier

IPC: H01M8/1004 ,  H01M8/1016 ,  H01M8/04089 ,  H01M8/04291

Abstract: A membrane electrode assembly includes a cation exchange membrane electrode assembly and an anion exchange membrane electrode assembly. The cation exchange membrane includes a cation exchange membrane, a first cathode electrode disposed on the cation exchange membrane, and a first anode electrode disposed under the cation exchange membrane. The anion exchange membrane electrode assembly includes an anion exchange membrane, a second cathode electrode disposed on the anion exchange membrane, and a second anode electrode disposed under the anion exchange membrane. The cation exchange membrane and the anion exchange membrane partially contact each other, and the first cathode electrode, the first anode electrode, the second cathode electrode, and the second anode electrode do not contact one another.

公开(公告)号：US10367206B2

公开(公告)日：2019-07-30

申请号：US15910290

申请日：2018-03-02

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Sung Jong Yoo ,  Dong Wook Lee ,  So Young Lee ,  Jin Young Kim ,  Jong Hyun Jang ,  Hyoung-Juhn Kim ,  Hyun Seo Park ,  Gil-Pyo Kim

IPC: H01M4/90 ,  H01M8/1018 ,  H01M4/92

Abstract: A method for preparing a metal catalyst supported on a porous carbon support using a plant, including: (a) a step of preparing a plant; (b) a step of preparing a metal precursor-absorbed plant by absorbing a metal precursor into the plant; (c) a step of preparing a catalyst precursor by drying the metal precursor-absorbed plant; (d) a step of preparing a char by charring the catalyst precursor; and (e) a step of preparing a metal catalyst supported on a porous carbon support by treating the char with an acid. The method for preparing a metal catalyst supported on a porous carbon support of the present disclosure, whereby a plant itself is charred, is environment-friendly and allows for convenient large-scale synthesis. The metal catalyst supported on a porous carbon support prepared thereby can be used as electrode materials of various energy devices, particularly as an electrode catalyst of a fuel cell.

公开(公告)号：US10305131B2

公开(公告)日：2019-05-28

申请号：US15200060

申请日：2016-07-01

Applicant: YOULCHON CHEMICAL CO., LTD. ,  KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Hyoung-Juhn Kim ,  Jong Hyun Jang ,  So Young Lee ,  Bohyun Kim ,  Sun-Hee Choi ,  Jonghee Han ,  Jin Ho Kim ,  Jong Hyub Park

IPC: H01M8/1027 ,  H01M8/1044 ,  H01M8/1081 ,  C08J5/22 ,  H01M8/1004 ,  H01M8/1018

Abstract: Disclosed is an electrolyte membrane for a fuel cell including a polymer blend of a sulfonated polyethersulfone copolymer, hydroxyl group-containing polyethersulfone copolymer and a hydroxyl group-containing sulfonated polyethersulfone copolymer.

公开(公告)号：US20180202970A1

公开(公告)日：2018-07-19

申请号：US15861998

申请日：2018-01-04

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： So Young LEE ,  Hyoung-Juhn Kim ,  Young Seung Na ,  Jin Young Kim ,  Sung Jong Yoo ,  Jong Hyun Jang ,  Jonghee Han ,  Suk Woo Nam

IPC: G01N27/62 ,  G01R27/26 ,  G01K13/00

Abstract: An ionic conductivity measurement device of an electrolytic membrane includes a humidification chamber configured to accommodate an ion-conductive electrolytic membrane and having concave grooves respectively formed at both sides thereof which face the electrolytic membrane to form a measurement space for measuring ionic conductivity of the electrolytic membrane; a plurality of channels formed at a bottom surface of each of the concave grooves; a gas distribution unit detachably coupled to each of the concave grooves with the electrolytic membrane being interposed therebetween; and a plurality of electrodes provided in contact with one side of the electrolytic membrane and supported by the gas distribution unit, the plurality of electrodes being disposed side by side to measure an impedance of the electrolytic membrane.

公开(公告)号：US09793552B2

公开(公告)日：2017-10-17

申请号：US14193083

申请日：2014-02-28

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Jong Hyun Jang ,  Yung-Eun Sung ,  Hee-young Park ,  Hyoung-Juhn Kim ,  Dirk Henkensmeier ,  Suk Woo Nam ,  Hyung Chul Ham ,  Tae-Hoon Lim ,  Sung Jong Yoo ,  Eun Ae Cho ,  Kug-Seung Lee

IPC: B01J23/58 ,  H01M4/92

CPC classification number: H01M4/926 ,  H01M4/921

Abstract: The present disclosure relates to a PtAu nanoparticle catalyst heat-treated in the presence of carbon monoxide (CO) and a method for preparing same. Since the PtxAuy nanoparticle catalyst heat-treated under CO atmosphere has high Pt surface area and superior oxygen reduction reaction (ORR) activity, a high-efficiency, high-quality fuel cell can be achieved by applying the catalyst to a fuel cell.

公开(公告)号：US09751078B2

公开(公告)日：2017-09-05

申请号：US14921567

申请日：2015-10-23

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Sung Jong Yoo ,  Jaeyune Ryu ,  Jong Hyun Jang ,  Jin Young Kim ,  Hyoung-Juhn Kim ,  Sung Pil Yoon ,  Jonghee Han ,  Suk Woo Nam ,  Tae Hoon Lim

IPC: B01J27/185 ,  B01J35/06 ,  C25B11/03 ,  C25B11/04 ,  C25B1/02 ,  B82Y30/00

CPC classification number: B01J27/1853 ,  B01J23/75 ,  B01J35/06 ,  B82Y30/00 ,  C25B1/02 ,  C25B11/035 ,  C25B11/0405 ,  C25B11/0415 ,  C25B11/0447

Abstract: Disclosed is a non-precious metal based water electrolysis catalyst represented by CoX/C (X is at least one selected from the group consisting of P, O, B, S and N) for evolution of hydrogen and oxygen at a cathode and anode, respectively, at the same time, the catalyst including a cobalt-containing compound fixed to a carbon carrier.