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.

公开(公告)号：US10483554B2

公开(公告)日：2019-11-19

申请号：US14979877

申请日：2015-12-28

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Jin Young Kim ,  Sung Jong Yoo ,  Dirk Henkensmeier ,  Jong Hyun Jang ,  Hyoung-Juhn Kim ,  Yeon Hun Jeong ,  Nayoung Kim ,  Chang Won Yoon ,  Jonghee Han ,  Suk Woo Nam ,  Tae Hoon Lim

IPC: H01M4/88 ,  H01M4/90 ,  H01M4/92 ,  B01J27/24

Abstract: Disclosed is a carbon support for a fuel cell catalyst that supports a metal. The carbon support includes a conductive carbon support and nitrogen atoms doped into the conductive carbon support. Also disclosed is a method for preparing the carbon support. Also disclosed is a catalyst including the carbon support. The catalyst has greatly improved degradation resistance compared to conventional catalysts for fuel cells. In addition, the catalyst is not substantially degraded even when applied to a single cell.

公开(公告)号：US20190074523A1

公开(公告)日：2019-03-07

申请号：US15879237

申请日：2018-01-24

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

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

IPC: H01M4/90

Abstract: An aryne-grafted carbon-supported catalyst and a method of preparing the same, and particularly to a carbon-supported catalyst having an organic anchor formed on the surface of a carbon support through aryne cycloaddition in order to improve the durability of a fuel cell catalyst, and a method of preparing the same. It is possible to form a covalent bonding selectively to a carbon support of a fuel cell catalyst in a solution by using 2-(trimethylsilyl)phenyl triflate or the like. In addition, the formed anchor prevents adhesion of metal catalyst particles of a fuel cell, and thus improves the durability of a fuel cell catalyst.

公开(公告)号：US20180258544A1

公开(公告)日：2018-09-13

申请号：US15910270

申请日：2018-03-02

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Sung Jong Yoo ,  Injoon Jang ,  So Young Lee ,  Jin Young Kim ,  Jong Hyun Jang ,  Hyoung-Juhn Kim ,  Jonghee Han ,  Hyun Seo Park

IPC: C25B11/04 ,  C25B1/04

CPC classification number: C25B11/0447 ,  B01J35/0033 ,  C25B1/04 ,  Y02E60/366

Abstract: Provided are a cathode catalyst for water electrolysis devices and a method for preparing the same. More specifically, provided are a cathode catalyst for water electrolysis devices that exhibits both high activity and high electrical conductivity, compared to conventional transition metal phosphide catalysts, and a method for preparing the same.

公开(公告)号：US20180254491A1

公开(公告)日：2018-09-06

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

CPC classification number: H01M4/9083 ,  H01M4/9041 ,  H01M4/926 ,  H01M8/1018 ,  H01M2008/1095

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：US09926266B2

公开(公告)日：2018-03-27

申请号：US15292106

申请日：2016-10-12

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Hyoung-Juhn Kim ,  Eun Ki Kim ,  So Young Lee ,  Jong Hyun Jang ,  Jin Young Kim ,  Sung Jong Yoo ,  Dirk Henkensmeier ,  Dae Ki Choi ,  Jonghee Han ,  Suk Woo Nam

IPC: C07C303/44 ,  C07C303/32 ,  C07C309/24

CPC classification number: C07C303/44 ,  C07C303/32 ,  C07C309/24

Abstract: Disclosed are a method for preparing a pure isophthalaldehyde bisulfite adduct free from impurities through a specific purification process, and use thereof as a starting material for polymerizing polybenzimidazole under a mild condition. According to the present disclosure, it is possible to obtain a pure isophthalaldehyde bisulfite adduct free from impurities, such as unreacted materials or byproducts. In addition, it is possible to accomplish industrial mass production of a high-molecular weight polybenzimidazole by using the adduct as a starting material for polymerizing polybenzimidazole under a mild condition in an organic solvent.

公开(公告)号：US09735365B2

公开(公告)日：2017-08-15

申请号：US14578948

申请日：2014-12-22

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Bong Soo Kim ,  Hyo Sang Lee ,  Hong Gon Kim ,  Min Jae Ko ,  Doh-Kwon Lee ,  Jin Young Kim ,  Hae Jung Son

IPC: H01B1/12 ,  H01L51/00 ,  H01L51/42 ,  H01L31/0256

CPC classification number: H01L51/0036 ,  H01B1/124 ,  H01L51/0037 ,  H01L51/0043 ,  H01L51/0047 ,  H01L51/4253 ,  H01L2031/0344 ,  Y02E10/549

Abstract: The present disclosure relates to a novel polymer compound and a method for preparing the same. More particularly, the present disclosure relates to a novel conductive low band gap electron donor polymer compound having high photon absorptivity and improved hole mobility, a method for preparing the same and an organic photovoltaic cell containing the same. Since the conductive polymer compound as a low band gap electron donor exhibits high photon absorptivity and superior hole mobility, it can be usefully used as a material for an organic optoelectronic device such as an organic photodiode (OPD), an organic thin-film transistor (OTFT), an organic light-emitting diode (OLED), an organic photovoltaic cell, etc. as well as in the development of a n-type material.

公开(公告)号：US11289711B2

公开(公告)日：2022-03-29

申请号：US16934893

申请日：2020-07-21

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

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.