公开(公告)号：US11056693B2

公开(公告)日：2021-07-06

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 ,  H01M4/88

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：US20180212264A1

公开(公告)日：2018-07-26

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

CPC classification number: H01M8/1004 ,  H01M8/04089 ,  H01M8/04291 ,  H01M8/1016 ,  H01M2300/0088

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：US09954240B2

公开(公告)日：2018-04-24

申请号：US15132011

申请日：2016-04-18

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY ,  Jagiellonian University

Inventor： Dirk Henkensmeier ,  Jong Hyun Jang ,  Hyoung-Juhn Kim ,  Jin Young Kim ,  Sung Pil Yoon ,  Jonghee Han ,  Suk Woo Nam ,  Ngoc My Hanh Duong ,  Artur Michalak ,  Karol Dyduch ,  Mateusz Brela

IPC: H01M8/103 ,  H01M8/1004 ,  H01M8/12 ,  H01M8/1027 ,  C08G65/40 ,  C08G65/48 ,  C08G65/00 ,  H01M8/1018

CPC classification number: C08G65/40 ,  C08G65/007 ,  C08G65/4037 ,  C08G65/48 ,  H01M8/1004 ,  H01M8/1025 ,  H01M8/1027 ,  H01M8/103 ,  H01M8/12 ,  H01M2008/1095 ,  Y02P70/56

Abstract: Disclosed are a 5-(2,6-dioxyphenyl)tetrazole-containing polymer, a method for preparing the same, a membrane containing the same and an electrochemical device, particularly a high temperature polymer electrolyte membrane fuel cell, including the membrane. The membrane containing the 5-(2,6-dioxyphenyl)tetrazole-containing polymer is capable of providing high proton conductivity and exhibiting good mechanical properties, thereby capable of providing superior fuel cell performance. Accordingly, the membrane may be usefully used in an electrochemical device, particularly a fuel cell, more particularly a high temperature polymer electrolyte membrane fuel cell.

公开(公告)号：US20180050984A1

公开(公告)日：2018-02-22

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 ,  C07C309/24 ,  C07C303/32

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：US09799904B2

公开(公告)日：2017-10-24

申请号：US14016687

申请日：2013-09-03

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Jong Hyun Jang ,  Hee-young Park ,  Hyoung-Juhn Kim ,  Dirk Henkensmeier ,  Sung Pil Yoon ,  Suk Woo Nam ,  Hyung Chul Ham ,  Tae-Hoon Lim ,  Jonghee Han ,  Sung Jong Yoo ,  Eun Ae Cho

IPC: H01M8/10 ,  H01M8/1004 ,  H01M4/92

CPC classification number: H01M8/1004 ,  H01M4/921 ,  H01M4/923 ,  H01M4/926 ,  Y02P70/56

Abstract: A polymer electrolyte membrane fuel cell is provided. The polymer electrolyte membrane fuel cell includes a phosphoric acid-doped polyimidazole electrolyte membrane and a complex catalyst. In the complex catalyst, an alloy or mixture of a metal and a chalcogen element is supported on a carbon carrier. The polymer electrolyte membrane fuel cell exhibits further improved long-term operation, power generation efficiency, and operational stability at high temperature. The complex catalyst can be produced by a simple method.

公开(公告)号：US20160308229A1

公开(公告)日：2016-10-20

申请号：US15132011

申请日：2016-04-18

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY ,  Jagiellonian University

Inventor： Dirk Henkensmeier ,  Jong Hyun JANG ,  Hyoung-Juhn KIM ,  Jin Young KIM ,  Sung Pil YOON ,  Jonghee HAN ,  Suk Woo NAM ,  Ngoc My Hanh Duong ,  Artur Michalak ,  Karol Dyduch ,  Mateusz Brela

IPC: H01M8/103 ,  H01M8/1004 ,  H01M8/1027 ,  C08G65/40 ,  H01M8/12

CPC classification number: C08G65/40 ,  C08G65/007 ,  C08G65/4037 ,  C08G65/48 ,  H01M8/1004 ,  H01M8/1025 ,  H01M8/1027 ,  H01M8/103 ,  H01M8/12 ,  H01M2008/1095 ,  Y02P70/56

Abstract: Disclosed are a 5-(2,6-dioxyphenyl)tetrazole-containing polymer, a method for preparing the same, a membrane containing the same and an electrochemical device, particularly a high temperature polymer electrolyte membrane fuel cell, including the membrane. The membrane containing the 5-(2,6-dioxyphenyl)tetrazole-containing polymer is capable of providing high proton conductivity and exhibiting good mechanical properties, thereby capable of providing superior fuel cell performance. Accordingly, the membrane may be usefully used in an electrochemical device, particularly a fuel cell, more particularly a high temperature polymer electrolyte membrane fuel cell.

Abstract translation: 公开了含有5-（2,6-二氧代苯基）四唑的聚合物，其制备方法，含有该聚合物的膜和包含该膜的电化学装置，特别是高温高分子电解质膜燃料电池。 含有5-（2,6-二氧代苯基）四唑的聚合物的膜能够提供高质子传导性并表现出良好的机械性能，从而能够提供优异的燃料电池性能。 因此，膜可以有用地用于电化学装置，特别是燃料电池，特别是高温聚合物电解质膜燃料电池中。