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.

公开(公告)号：US11936052B2

公开(公告)日：2024-03-19

申请号：US16850750

申请日：2020-04-16

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Jin Young Kim ,  Jong Min Kim ,  Hee-Young Park ,  So Young Lee ,  Hyun Seo Park ,  Sung Jong Yoo ,  Jong Hyun Jang ,  Hyoung-Juhn Kim ,  Chang Won Yoon ,  Jonghee Han

IPC: H01M4/92 ,  C01G19/02 ,  D01D5/00 ,  D01F9/08 ,  H01M4/86

CPC classification number: H01M4/925 ,  C01G19/02 ,  D01F9/08 ,  H01M4/8673 ,  C01P2002/54 ,  C01P2004/13 ,  D01D5/0007

Abstract: Provided is a fluorine-doped tin oxide support, a platinum catalyst for a fuel cell having the same, and a method for producing the same. Also described is a high electrical conductivity and electrochemical durability by doping fluorine to the tin oxide-based support through an electrospinning process. Thus, while resolving a degradation issue of the carbon support in the conventional commercially available platinum/carbon (Pt/C) catalyst, what is designed is to minimize an electrochemical elution of dopant or tin, which is a limitation of the tin oxide support itself and has excellent performance as a catalyst for a fuel cell.

公开(公告)号：US20240018675A1

公开(公告)日：2024-01-18

申请号：US18080463

申请日：2022-12-13

Applicant: Hyundai Motor Company ,  Kia Corporation ,  Korea Institute of Science and Technology

Inventor： Dae Yong Son ,  Jong Kil Oh ,  Sung Jong Yoo ,  Ha Neul Jin

IPC: C25B11/093

CPC classification number: C25B11/093

Abstract: Disclosed are a catalyst including a nickel-based intermetallic compound and a method of preparing the same. The catalyst includes a support and a metal component loaded on the support, wherein the metal component includes an intermetallic compound of nickel (Ni) and a noble metal.

公开(公告)号：US11799093B2

公开(公告)日：2023-10-24

申请号：US17677723

申请日：2022-02-22

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Jong Hyun Jang ,  Hyun Seo Park ,  Hee-Young Park ,  Katie Heeyum Lim ,  Oh Sub Kim ,  Hyoung-Juhn Kim ,  Jin Young Kim ,  Sung Jong Yoo ,  Dirk Henkensmeir ,  So Young Lee

IPC: H01M4/92 ,  H01M4/86 ,  H01M4/88 ,  H01M4/90

CPC classification number: H01M4/926 ,  H01M4/8652 ,  H01M4/8828 ,  H01M4/8892 ,  H01M4/9016

Abstract: Disclosed are a catalyst electrode for a fuel cell, a method for fabricating the catalyst electrode, and a fuel cell including the catalyst electrode. The presence of an ionomer-ionomer support composite in the catalyst electrode prevents the porous structure of the catalyst electrode from collapsing due to oxidation of a carbon support to avoid an increase in resistance to gas diffusion and can stably secure proton channels. The presence of carbon materials with high conductivity is effective in preventing the electrical conductivity of the electrode from deterioration resulting from the use of a metal oxide in the ionomer-ionomer support composite and is also effective in suppressing collapse of the porous structure of the electrode to prevent an increase in resistance to gas diffusion in the electrode. Based on these effects, the fuel cell exhibits excellent performance characteristics and prevents its performance from deteriorating during continuous operation.

公开(公告)号：US11649551B2

公开(公告)日：2023-05-16

申请号：US17038331

申请日：2020-09-30

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： So Young Lee ,  Hyoung-Juhn Kim ,  Sae Yane Baek ,  Taekyung Lee ,  Sung Jong Yoo ,  Jong Hyun Jang ,  Hee-Young Park ,  Jin Young Kim ,  Hyun S. Park

IPC: C25B9/23 ,  C25B13/02 ,  C25B13/08 ,  B01D67/00 ,  B01D71/06 ,  C25B11/04 ,  C25B1/04 ,  C25B9/73

CPC classification number: C25B9/23 ,  B01D67/0011 ,  B01D67/0013 ,  B01D71/06 ,  C25B1/04 ,  C25B9/73 ,  C25B11/04 ,  C25B13/02 ,  C25B13/08 ,  B01D2325/023 ,  B01D2325/42

Abstract: The present disclosure discloses an asymmetric electrolyte membrane, a membrane electrode assembly including the same, a water electrolysis apparatus including the same and a method for manufacturing the same. More particularly, it discloses an asymmetric electrolyte membrane having a porous layer and a dense layer at the same time, a membrane electrode assembly including the same, a water electrolysis apparatus including the same and a method for manufacturing the same.

公开(公告)号：US11326264B2

公开(公告)日：2022-05-10

申请号：US16122640

申请日：2018-09-05

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Jong Hyun Jang ,  Seunghoe Choe ,  Youngseung Na ,  Hye Jin Lee ,  Hyoung-Juhn Kim ,  Dirk Henkensmeier ,  Sung Jong Yoo ,  Jin Young Kim ,  So Young Lee ,  Hyun Seo Park

IPC: C25B11/051 ,  C25B1/04 ,  C25B9/19 ,  C25B9/23 ,  C25B9/73 ,  C25B11/069

Abstract: Provided is a membrane electrode assembly for a proton exchange membrane water electrolyzer, including: an oxygen electrode including an iridium oxide (IrO2) layer which is an electrodeposited oxygen electrode catalyst layer on a titanium (Ti) layer which is a diffusion layer; a hydrogen electrode in which a hydrogen electrode catalyst layer is formed on a diffusion layer; and an electrolyte membrane placed between the oxygen electrode catalyst layer and the hydrogen electrode catalyst layer, in which a portion of the pores of the Ti diffusion layer are filled with an electrolyte of the electrolyte membrane.

公开(公告)号：US11127967B2

公开(公告)日：2021-09-21

申请号：US16814619

申请日：2020-03-10

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Hyun Seo Park ,  Ahyoun Lim ,  Ju Sung Lee ,  Hee-Young Park ,  So Young Lee ,  Jin Young Kim ,  Sung Jong Yoo ,  Dirk Henkensmeier ,  Jong Hyun Jang ,  Hyoung-Juhn Kim

IPC: H01M8/18 ,  H01M8/1004 ,  H01M8/1231 ,  H01M4/92 ,  H01M4/86 ,  H01M4/90 ,  H01M8/1018

Abstract: Disclosed is a high temperature-type unitized regenerative fuel cell using water vapor, which exhibits high hydrogen (H2) production efficiency and superior power generation ability.

公开(公告)号：US10818950B2

公开(公告)日：2020-10-27

申请号：US15885814

申请日：2018-02-01

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY ,  GLOBAL FRONTIER CENTER FOR MULTISCALE ENERGY SYSTEMS

Inventor： Jin Young Kim ,  Kyung-jin Lee ,  Kyungah Lee ,  Nayoung Kim ,  So Young Lee ,  Sung Jong Yoo ,  Jong Hyun Jang ,  Hyoung-Juhn Kim ,  Jonghee Han ,  Suk Woo Nam ,  Tae Hoon Lim

IPC: H01M8/10 ,  B01D69/10 ,  B01D69/02 ,  B01D71/36 ,  B01D67/00 ,  B01J35/00 ,  H01M8/1081 ,  H01M8/1023 ,  H01M8/1039 ,  H01M8/1053 ,  H01M8/1067 ,  H01M8/106 ,  H01M8/1018

Abstract: A composite polymer electrolyte membrane for a fuel cell may be manufactured by the following method: partially or totally filling the inside of a pore of a porous support with a hydrogen ion conductive polymer electrolyte solution by performing a solution impregnation process; and drying the hydrogen ion conductive polymer electrolyte solution while completely filling the inside of the pore with the hydrogen ion conductive polymer electrolyte solution by performing a spin dry process on the porous support of which the inside of the pore is partially or totally filled with the hydrogen ion conductive polymer electrolyte solution.