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：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.