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：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：US20170187042A1

公开(公告)日：2017-06-29

申请号：US15360034

申请日：2016-11-23

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Jong Hyun JANG ,  Byungseok LEE ,  Hee-Young PARK ,  Hyoung-Juhn KIM ,  Dirk HENKENSMEIER ,  Sung Jong YOO ,  Jin Young KIM ,  So Young LEE ,  Jaeyune RYU ,  Sung Pil YOON ,  Jonghee HAN ,  Suk Woo NAM

IPC: H01M4/86 ,  H01M4/92 ,  H01M8/18 ,  H01M4/88

CPC classification number: H01M4/8657 ,  H01M4/8615 ,  H01M4/8807 ,  H01M4/8853 ,  H01M4/886 ,  H01M4/926 ,  H01M8/186 ,  Y02E60/528

Abstract: Disclosed are a reversible fuel cell oxygen electrode in which IrO2 is electrodeposited and formed on a porous carbon material and platinum is applied thereon to form a porous platinum layer, a reversible fuel cell including the same, and a method for preparing the same. According to the corresponding reversible fuel cell oxygen electrode, as the loading amounts of IrO2 and platinum used in the reversible fuel cell oxygen electrode can be lowered, it is possible to exhibit excellent reversible fuel cell performances (excellent fuel cell performance and water electrolysis performance) by improving the mass transport of water and oxygen while being capable of reducing the loading amounts of IrO2 and platinum. Further, it is possible to exhibit a good activity of a catalyst when the present disclosure is applied to a reversible fuel cell oxygen electrode and to reduce corrosion of carbon.

公开(公告)号：US20170005342A1

公开(公告)日：2017-01-05

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

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.

Abstract translation: 公开了一种用于支撑金属的燃料电池催化剂的碳载体。 碳载体包括导电碳载体和掺杂到导电碳载体中的氮原子。 还公开了一种制备碳载体的方法。 还公开了包括碳载体的催化剂。 与用于燃料电池的常规催化剂相比，催化剂具有显着改善的降解性能。 此外，即使施加到单个电池，催化剂也基本上不劣化。

公开(公告)号：US20160199821A1

公开(公告)日：2016-07-14

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 ,  C25B11/04 ,  C25B1/02 ,  C25B11/03

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.

Abstract translation: 公开了一种用于在阴极和阳极放出氢和氧的由CoX / C（X是选自P，O，B，S和N的至少一种）表示的非贵金属基水电解催化剂， 同时，催化剂包括固定在碳载体上的含钴化合物。

公开(公告)号：US20140329169A1

公开(公告)日：2014-11-06

申请号：US14262953

申请日：2014-04-28

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Hyoung-Juhn KIM ,  Yeon Hye KWON ,  Jun Young HAN ,  Hyung Chul HAM ,  Jong Hyun JANG ,  Suk Woo NAM ,  Eun Ae CHO ,  Sung Jong YOO ,  Chang Won YOON

IPC: H01M8/10

CPC classification number: H01M8/1027 ,  C08G75/00 ,  C08G75/23 ,  C08J5/22 ,  C08J2371/10 ,  C08L81/06 ,  H01B1/122 ,  H01M8/1072 ,  H01M2008/1095 ,  H01M2300/0082 ,  Y02P70/56

Abstract: Provided are a hydroxyl group-containing sulfonated polyethersulfone copolymer, a method for preparing the same, a polymer electrolyte membrane for fuel cell, and a membrane electrode assembly including the same. More particularly, provided are a hydroxyl group-containing sulfonated polyethersulfone electrolyte membrane and a membrane electrode assembly including the same, which are applied to a fuel cell to provide significantly higher ion conductivity as compared to the sulfonated polymer electrolyte membranes according to the related art. The hydroxyl group-containing sulfonated polyethersulfone copolymer electrolyte membrane shows significantly higher ion conductivity under various temperature and humidity conditions as compared to the sulfonated polymer electrolyte membranes according to the related art. Therefore, it is expected that the hydroxyl group-containing sulfonated polyethersulfone copolymer substitutes for expensive fluoropolymer electrolyte membranes such as Nafion.

Abstract translation: 本发明提供含有羟基的磺化聚醚砜共聚物，其制备方法，燃料电池用高分子电解质膜和包含该羟基的膜电极组合物。 更具体地说，与根据现有技术的磺化聚合物电解质膜相比，提供了含有羟基的磺化聚醚砜电解质膜和包含该羟基的磺化聚醚砜电解质膜的膜电极组合物，其被应用于燃料电池以提供显着更高的离子传导性。 与根据现有技术的磺化聚合物电解质膜相比，含羟基的磺化聚醚砜共聚物电解质膜在各种温度和湿度条件下显示出显着更高的离子传导性。 因此，预期含羟基的磺化聚醚砜共聚物代替昂贵的含氟聚合物电解质膜如Nafion。

公开(公告)号：US20140221192A1

公开(公告)日：2014-08-07

申请号：US14171906

申请日：2014-02-04

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Sung Jong YOO ,  Hee-young PARK ,  Jong Hyun JANG ,  Hyoung-Juhn KIM ,  Tae-Hoon LIM ,  Sang Young LEE ,  Sang Hyun AHN ,  Namgee JUNG ,  Suk Woo NAM ,  Eun Ae CHO

IPC: H01M4/88 ,  H01M4/90

CPC classification number: H01M4/9083 ,  H01M4/9041 ,  H01M4/921 ,  H01M4/926 ,  Y02E60/50

Abstract: The present disclosure relates to a method and an apparatus for preparing nanosized metal or alloy nanoparticles by depositing metal or alloy nanoparticles with superior size uniformity on the surface of a powder as a base material by vacuum deposition and then dissolving or melting the base material using a solvent or heat. The method solves the problems of the existing expensive multi-step synthesis method based on chemical reduction and allows effective synthesis of metal or alloy nanoparticles with very uniform size and metal or alloy catalyst nanoparticles supported on carbon at low cost.

Abstract translation: 本公开内容涉及一种通过在真空沉积作为基材的粉末表面上沉积具有优异尺寸均匀性的金属或合金纳米颗粒来制备纳米尺寸金属或合金纳米颗粒的方法和装置，然后使用 溶剂或热量。 该方法解决了基于化学还原的现有昂贵的多步合成方法的问题，并且能够有效合成具有非常均匀尺寸的金属或合金纳米颗粒，并以低成本负载在碳上的金属或合金催化剂纳米颗粒。

公开(公告)号：US20240254636A1

公开(公告)日：2024-08-01

申请号：US18390703

申请日：2023-12-20

Applicant: Korea University Research and Business Foundation ,  KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY ,  Seoul National University R&DB Foundation

Inventor： Young Keun KIM ,  Yoo Sang JEON ,  Eunjin JEONG ,  Sung Jong YOO ,  Ki Tae NAM ,  Sang Won IM

IPC: C25B3/13

CPC classification number: C25B3/13

Abstract: Disclosed herein is a technique for synthesizing chiral magnetic nanocoils using an electrodeposition technique, which can be used to fabricate magnetic nanosensors capable of generating an electric field by strongly reacting to an external magnetic field, such as Faraday's law of electromagnetic induction at the nanoscale, depending on the coil shape of the nanostructure. In accordance with one embodiment, a method of synthesizing a chiral magnetic nanocoil may include generating a primary particle composed of metal ions by applying an external electric field, binding a chiral molecule to a surface of the generated primary particle, and controlling an assembly direction of a next primary particle by the bound chiral molecule.

公开(公告)号：US20230006216A1

公开(公告)日：2023-01-05

申请号：US17571662

申请日：2022-01-10

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： So Young LEE ,  Seung Ju LEE ,  Jin Hyeon CHOI ,  Jeawoo JUNG ,  Hyoung-Juhn KIM ,  Sung Jong YOO ,  Hee-Young PARK ,  Bora SEO ,  Jin Young KIM ,  Jong Hyun JANG

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

Abstract: The present disclosure relates to antioxidant for a polymer electrolyte membrane fuel cell electrode catalyst, which includes cerium hydrogen phosphate (HCe2(PO4)3(H2O)) in the form of a nanofiber, and an electrode and a membrane-electrode assembly including the same. The electrode for a polymer electrolyte membrane fuel cell of the present disclosure, wherein the antioxidant is dispersed, can improve the mechanical strength of an electrode catalyst layer and can minimize deterioration of chemical durability even after long-term operation. And, a fuel cell including the same can exhibit high output performance and can operate stably even after long-term operation.

公开(公告)号：US20220181646A1

公开(公告)日：2022-06-09

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

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.