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：US11569523B2

公开(公告)日：2023-01-31

申请号：US16859712

申请日：2020-04-27

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： So Young Lee ,  Seung Ju Lee ,  Min Jae Lee ,  Hyun Seo Park ,  Jong Hyun Jang ,  Hyoung-Juhn Kim ,  Suk Woo Nam ,  Young Suk Jo ,  Yeong Cheon Kim

IPC: H01M8/1051 ,  H01M8/103 ,  H01M8/1072 ,  H01M8/1081 ,  H01M8/1048 ,  H01M8/1088 ,  H01M8/1011 ,  H01M8/10 ,  H01M8/1009

Abstract: The present disclosure relates to a polymer electrolyte membrane for medium and high temperature, a preparation method thereof and a high-temperature polymer electrolyte membrane fuel cell including the same, more particularly to a technology of preparing a composite membrane including an inorganic phosphate nanofiber incorporated into a phosphoric acid-doped polybenzimidazole (PBI) polymer membrane by adding an inorganic precursor capable of forming a nanofiber in a phosphoric acid solution when preparing phosphoric acid-doped polybenzimidazole and using the same as a high-temperature polymer electrolyte membrane which is thermally stable even at high temperatures of 200-300° C. without degradation of phosphoric acid and has high ion conductivity.

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：US10777834B2

公开(公告)日：2020-09-15

申请号：US15675233

申请日：2017-08-11

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Sung Pil Yoon ,  Jonghee Han ,  Hyung Chul Ham ,  Chang Won Yoon ,  Sun-Hee Choi ,  Hyun Seo Park ,  Yeong Cheon Kim ,  Chang-Whan Lee ,  Hyoung-Juhn Kim ,  Tae Hoon Lim ,  Suk Woo Nam ,  Seong Cheol Jang

IPC: H01M8/14 ,  C01D7/00 ,  C25B1/04 ,  H01M8/04276 ,  C25B1/14 ,  C01D3/12 ,  C01D15/04

Abstract: Disclosed are a method for supplying molten carbonate fuel cell with electrolyte and a molten carbonate fuel cell using the same, wherein a molten carbonate electrolyte is generated from a molten carbonate electrolyte precursor compound in a molten carbonate fuel cell and is supplied to the molten carbonate fuel cell.

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.