公开(公告)号：US20220021015A1

公开(公告)日：2022-01-20

申请号：US17013918

申请日：2020-09-08

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： So Young LEE ,  Seung Ju LEE ,  Hyun Seo PARK ,  Jin Young KIM ,  Sung Jong YOO ,  Jong Hyun JANG ,  Hyoung-Juhn KIM ,  Hee-Young PARK

IPC: H01M8/1051 ,  H01M8/1039 ,  C08K3/32 ,  C08K7/08 ,  C08F14/18

Abstract: Disclosed is an antioxidant for a polymer electrolyte membrane of a fuel cell including cerium hydrogen phosphate (CeHPO4). The presence of cerium hydrogen phosphate in the antioxidant enhances the dissolution stability of cerium and improves the ability to capture water, leading to an increase in proton conductivity. In addition, the cerium hydrogen phosphate has a crystal structure composed of smaller cerium particles. This crystal structure greatly improves the ability of the antioxidant to prevent oxidation of the electrolyte membrane. Also disclosed are an electrolyte membrane including the antioxidant, a fuel cell including the electrolyte membrane, a method for preparing the antioxidant, a method for producing the electrolyte membrane, and a method for fabricating the fuel cell.

公开(公告)号：US20210159512A1

公开(公告)日：2021-05-27

申请号：US16802206

申请日：2020-02-26

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY ,  GLOBAL FRONTIER CENTER FOR MULTISCALE ENERGY SYSTEMS

Inventor： Sung Jong YOO ,  Injoon JANG ,  Hee-Young PARK ,  So Young LEE ,  Hyun Seo PARK ,  Jin Young KIM ,  Jong Hyun JANG ,  Hyoung-Juhn KIM

IPC: H01M4/92 ,  H01M4/88

Abstract: The present disclosure relates to a method for preparing a metal single-atom catalyst for a fuel cell. The method for preparing a metal single-atom catalyst uses a relatively lower amount of chemical substances as compared to the conventional methods and thus is eco-friendly, uses no liquid through the whole process and avoids a need for additional steps for separating and/or washing the catalyst after its synthesis, thereby allowing simplification of the process, and can produce a single-atom catalyst at low cost. In addition, unlike the conventional methods having a limitation in metallic materials, the method can be applied in common regardless of types of metals, and thus is significantly advantageous in that it can be applied widely to obtain various types of metal single-atom catalysts. Further, in the method for preparing a metal single-atom catalyst, metal atoms totally participate in the reaction. Thus, the method can minimize the usage of metal to provide high cost-efficiency.

公开(公告)号：US20200230589A1

公开(公告)日：2020-07-23

申请号：US16534216

申请日：2019-08-07

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY ,  GLOBAL FRONTIER CENTER FOR MULTISCALE ENERGY SYSTEMS

Inventor： Sung Jong YOO ,  Injoon JANG ,  Hee-Young PARK ,  So Young LEE ,  Hyun Seo PARK ,  Jin Young KIM ,  Jong Hyun JANG ,  Hyoung-Juhn KIM

IPC: B01J37/34 ,  B01J23/50 ,  B01J23/52 ,  B01J37/02

Abstract: Disclosed are a metal single-atom catalyst and a method for preparing the same. The method uses a minimal amount of chemicals and is thus environmentally friendly compared to conventional chemical and/or physical methods. In addition, the method enables the preparation of a single-atom catalyst in a simple and economical manner without the need for further treatment such as acid treatment or heat treatment. Furthermore, the method is universally applicable to the preparation of single-atom catalysts irrespective of the kinds of metals and supports, unlike conventional methods that suffer from very limited choices of metal materials and supports. Therefore, the method can be widely utilized to prepare various types of metal single-atom catalysts. All metal atoms in the metal single-atom catalyst can participate in catalytic reactions. This optimal atom utilization achieves maximum reactivity per unit mass and can minimize the amount of the metal used, which is very economical.

公开(公告)号：US20190161868A1

公开(公告)日：2019-05-30

申请号：US16198286

申请日：2018-11-21

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Jong Hyun JANG ,  Seunghoe CHOE ,  Youngseung NA ,  Hye Jin LEE ,  Ahyoun LIM ,  Hyoung-Juhn KIM ,  Dirk HENKENSMEIER ,  Sung Jong YOO ,  Jin Young KIM ,  So Young LEE ,  Hyun Seo PARK

IPC: C25B1/10 ,  C25B11/03 ,  C25B11/04 ,  C25D9/04

Abstract: The present disclosure relates to an IrO2 electrodeposited porous titanium composite layer of a polymer electrolyte membrane water electrolysis apparatus serving as both a diffusion layer and an oxygen electrode, the apparatus including: a porous titanium (Ti) layer; and an electrodeposited iridium oxide (IrO2) layer on the porous Ti layer. The IrO2 layer may be uniformly deposited on a porous Ti layer through an electrolysis process, and the electrodeposited IrO2 layer may play multiple roles as not only a catalyst layer toward oxygen evolution reaction (OER) on the surface of the Ti layer, but also a corrosion-protection layer which prevents an inner Ti layer from corrosion.

公开(公告)号：US20180102562A1

公开(公告)日：2018-04-12

申请号：US15719557

申请日：2017-09-29

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Jin Young KIM ,  Sunhee JO ,  So Young LEE ,  Sung Jong YOO ,  Jong Hyun JANG ,  Hyoung-Juhn KIM ,  Jonghee HAN ,  Suk Woo NAM ,  Tae Hoon LIM

IPC: H01M8/106 ,  H01M8/1039 ,  H01M8/1069

CPC classification number: H01M8/106 ,  H01M8/1039 ,  H01M8/1053 ,  H01M8/1069 ,  H01M2008/1095 ,  Y02P70/56

Abstract: Provided is a composite polymer electrolyte membrane for a fuel cell, including: a porous fluorinated polymer support; and a perfluorinated sulfonic acid polymer resin membrane which fills the inside of pores of the porous perfluorinated polymer support and covers an external surface of the porous fluorinated polymer support.

公开(公告)号：US20160293872A1

公开(公告)日：2016-10-06

申请号：US15084309

申请日：2016-03-29

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Min Jae KO ,  Hae Jung SON ,  Jin Young KIM ,  Doh-Kwon LEE ,  Hee Suk JUNG ,  Bonkee KOO

IPC: H01L51/42

CPC classification number: H01L51/0032 ,  H01L51/0077 ,  H01L51/4226 ,  H01L2251/306 ,  Y02E10/549

Abstract: Disclosed are inorganic nanomaterial-based hydrophobic charge carriers and an organic-inorganic hybrid perovskite solar cell using the charge carriers. In the solar cell, the charge carriers are used as materials for a charge transport layer. The solar cell has high photoelectric efficiency for its price. In addition, the solar cell is prevented from being degraded by moisture. Therefore, the solar cell can be operated stably for a long time despite long-term exposure to a humid environment.

Abstract translation: 公开了使用无机纳米材料的疏水电荷载体和使用电荷载体的有机 - 无机杂化钙钛矿太阳能电池。 在太阳能电池中，电荷载体用作电荷传输层的材料。 太阳能电池的价格高，光电效率高。 此外，防止太阳能电池被水分劣化。 因此，尽管长期暴露于潮湿环境下，太阳能电池可以长时间稳定地操作。

公开(公告)号：US20160225999A1

公开(公告)日：2016-08-04

申请号：US14816877

申请日：2015-08-03

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Hae Jung SON ,  Min Jae KO ,  Hong Gon KIM ,  Doh-Kwon LEE ,  Bong Soo KIM ,  Jin Young KIM ,  Sungmin PARK ,  Hyun Soo CHO

IPC: H01L51/00 ,  H01L51/42

CPC classification number: H01L51/0059 ,  H01L51/005 ,  H01L51/0052 ,  H01L51/4213 ,  Y02E10/549

Abstract: Provided is an organic-inorganic hybrid photoelectric conversion device including a novel conductive organic semiconductor compound including paracyclophene and an organic-inorganic perovskite compound. A hole transport layer containing the conductive organic semiconductor compound including paracyclophene and a light absorbing layer are bound well organically with each other. Thus, it is possible to accomplish high photoelectric conversion efficiency. In addition, the organic-inorganic hybrid photoelectric conversion device is formed of a solid phase and has high stability, uses inexpensive materials, is obtained by a simple and easy process at low processing cost, and thus allows mass production with high cost efficiency, resulting in high commercial viability.

Abstract translation: 本发明提供一种有机 - 无机混合光电转换装置，其包括新型的包含对二氯苯和有机 - 无机钙钛矿化合物的导电有机半导体化合物。 包含对二酰基苯和光吸收层的导电有机半导体化合物的空穴传输层彼此良好地结合。 因此，可以实现高的光电转换效率。 另外，有机 - 无机混合型光电转换元件由固相形成，稳定性高，使用便宜的材料，通过简单易行的加工成本得到，能够以高成本效率进行批量生产，结果 在高商业可行性。

公开(公告)号：US20230163318A1

公开(公告)日：2023-05-25

申请号：US17862644

申请日：2022-07-12

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Sung Jong YOO ,  Dong Wook LEE ,  Bora SEO ,  So Young LEE ,  Hee-Young PARK ,  Hyun Seo PARK ,  Jin Young KIM ,  Hyoung-Juhn KIM ,  Jong Hyun JANG ,  Daeil CHOI

IPC: H01M4/92

CPC classification number: H01M4/926

Abstract: The present disclosure relates to a catalyst for a fuel cell, a fuel cell including the same and a method for preparing the catalyst for a fuel cell. More specifically, the catalyst for a fuel cell according to the present disclosure can exhibit superior catalytic activity as compared to the existing catalyst even when the catalyst metal is used at a very low content because some metal of the metal nanoparticles distributed on a carbon support is replaced with catalyst metal single atoms.

公开(公告)号：US20210020954A1

公开(公告)日：2021-01-21

申请号：US16841371

申请日：2020-04-06

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Hee-Young PARK ,  Jong Hyun JANG ,  Hyean-Yeol PARK ,  Jea-Woo JUNG ,  Katie Heeyum LIM ,  Hyoung-Juhn KIM ,  Dirk HENKENSMEIR ,  Sung Jong YOO ,  Jin Young KIM ,  Hyun Seo PARK ,  So Young LEE

IPC: H01M4/92 ,  H01M4/88 ,  H01M8/1004

Abstract: The present disclosure relates to a fuel cell catalyst and a manufacturing method thereof. The fuel cell catalyst of the present disclosure can be used to manufacture a membrane electrode assembly having a catalyst layer of high density and high dispersion by solving the problem of aggregation of catalyst particles occurring during the formation of the catalyst layer, by using a catalyst including a polydopamine-coated support.
In addition, the method for manufacturing a fuel cell catalyst of the present disclosure does not require a solvent because the catalyst including the polydopamine-coated support and the halide in solid phase are simply heat-treated by solid-to-solid dry synthesis and allows manufacturing of a fuel cell catalyst in short time because a washing process using a solvent and an extraction process for sampling are unnecessary after the synthesis.

公开(公告)号：US20200335800A1

公开(公告)日：2020-10-22

申请号：US16850750

申请日：2020-04-16

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Jin Young KIM ,  Jong Min KIM ,  Hee-Young PARK ,  So Young LEE ,  Hyun Seo PARK ,  Sung Jong YOO ,  Jong Hyun JANG ,  Hyoung-Juhn KIM ,  Chang Won YOON ,  Jonghee HAN

IPC: H01M4/92 ,  H01M4/86

Abstract: The present disclosure relates to a fluorine-doped tin oxide support, a platinum catalyst for a fuel cell comprising the same, and a method for producing the same. The present disclosure has a high electrical conductivity and electrochemical durability by doping fluorine to the tin oxide-based support through an electrospinning process. Thus, while resolving a degradation issue of the carbon support in the conventional commercially available platinum/carbon (Pt/C) catalyst, the present disclosure is designed to minimize an electrochemical elution of dopant or tin, which is a limitation of the tin oxide support itself and has excellent performance as a catalyst for a fuel cell.