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公开(公告)号：US20250019847A1
公开(公告)日：2025-01-16
申请号：US18700216
申请日：2022-09-15
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Jin Young KIM , Youngjoon LIM , Taehyun KWON , Byeong-jo MIN , Bora SEO , Hee-Young PARK , So Young LEE , Hyun Seo PARK , Sung Jong YOO , Hyoung-Juhn KIM , Jong Hyun JANG
Abstract: The present disclosure relates to a multilayer reinforced composite electrolyte membrane and a method for manufacturing the same. The multilayer reinforced composite electrolyte membrane according to the present disclosure has sufficient mechanical properties and improved membrane resistance at the same time since a porous support is impregnated in an ionomer and it is stacked in a multilayer structure. Furthermore, since the composite electrolyte membrane has no wrinkles and cracks due to excellent dimensional stability, it can improve the electrochemical properties of batteries.
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公开(公告)号：US20210273240A1
公开(公告)日：2021-09-02
申请号：US16934893
申请日：2020-07-21
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
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.
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3.发明申请公开(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
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.
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4.发明公开公开(公告)号：US20230163317A1
公开(公告)日：2023-05-25
申请号：US17855068
申请日：2022-06-30
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Sung Jong YOO , Myeong-Geun KIM , Bora SEO , Hee-Young PARK , So Young LEE , Hyun Seo PARK , Jin Young KIM , Hyoung-Juhn KIM , Jong Hyun JANG
CPC classification number: H01M4/923 , H01M4/9083
Abstract: The present disclosure relates to a method for preparing a catalyst for a fuel cell, a catalyst for a fuel cell and a fuel cell including the same. More specifically, the catalyst for a fuel cell according to the present disclosure, wherein ruthenium chalcogenide including the 1T phase exists as single-walled nanotubes, can reduce manufacturing cost by exhibiting superior catalytic activity so as to replace the existing platinum catalyst and can significantly improve stability.
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公开(公告)号：US20210320303A1
公开(公告)日：2021-10-14
申请号：US16901127
申请日：2020-06-15
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Hyoung-Juhn KIM , Ji Eon CHAE , So Young LEE , Hee-Young PARK , Jin Young KIM , Jong Hyun JANG , Hyun Seo PARK , Sung Jong YOO
IPC: H01M4/86 , H01M4/88 , C08F212/14
Abstract: The present disclosure relates to a styrene-based copolymer for an electrode binder of a solid alkaline fuel cell, represented by the following Chemical Formula 1, an electrode binder including the same, and a membrane electrode assembly including the electrode binder. The electrode binder for a solid alkaline fuel cell is obtained by dispersing the styrene-based copolymer for an electrode binder in a mixed solvent of alcohol with water. Thus, even when coating electrode catalyst slurry including the electrode binder directly on an electrolyte membrane, the electrolyte membrane is not damaged so that the quality of a solid alkaline fuel cell using the same may be improved. wherein x is an integer of 2-10, and each of m and n represents the number of repeating units.
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Patent Agency Ranking
公开(公告)号：US20200152996A1
公开(公告)日：2020-05-14
申请号：US16386395
申请日：2019-04-17
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Hyoung-Juhn KIM , Min Jae LEE , Ju Sung LEE , Katie Heeyum LIM , So Young LEE , Hee-Young PARK , Hyun Seo PARK , Jin Young KIM , Sung Jong YOO , Jong Hyun JANG
IPC: H01M4/88 , H01M8/1004 , H01M4/86 , H01M4/92 , H01M8/103
Abstract: Disclosed is a method for producing an electrode for a high temperature polymer electrolyte membrane fuel cell. According to the method, a catalyst slurry containing a uniformly dispersed binder is used to produce an electrode. Also disclosed are a membrane electrode assembly using the electrode and a high temperature polymer electrolyte membrane fuel cell including the membrane electrode assembly. Uniform distribution of the binder leads to improvements in the performance and reproducibility of the fuel cell.
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7.发明申请公开(公告)号：US20190341624A1
公开(公告)日：2019-11-07
申请号：US16268856
申请日：2019-02-06
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Jong Hyun JANG , Hee-Young PARK , Jea-woo JUNG , Hyoung-Juhn KIM , Dirk HENKENSMEIER , Sung Jong YOO , Jin Young KIM , So Young LEE , Hyun Seo PARK
IPC: H01M4/92
Abstract: The present disclosure relates to a method for preparing a carbon-supported platinum-transition metal alloy nanoparticle catalyst. More particularly, the present disclosure provides a method for preparing a carbon-supported platinum-transition metal alloy nanoparticle catalyst using a stabilizer, the method including the steps of: (a) mixing a platinum precursor, a transition metal precursor, carbon, stabilizer and a reducing agent solution, and carrying out washing and drying to obtain carbon-supported platinum-transition metal alloy nanoparticles; (b) mixing the carbon-supported platinum-transition metal alloy nanoparticles with an acetic acid solution, and carrying out washing and drying to obtain acetic acid-treated nanoparticles; and (c) heat treating the acetic acid-treated nanoparticles. Thus, it is possible to obtain a carbon-supported platinum-transition metal alloy nanoparticle catalyst through a more simple and eco-friendly process as compared to the related art, and to apply the catalyst to a high-performance and high-durability fuel cell catalyst.
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8.发明公开公开(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.
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公开(公告)号：US20220243345A1
公开(公告)日：2022-08-04
申请号：US17589466
申请日：2022-01-31
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Hyoung-Juhn KIM , Taekyung LEE , So Young LEE , Hee-Young PARK , Bora SEO , Hyun Seo PARK , Jong Hyun JANG , Tae Hoon LIM
Abstract: The present disclosure relates to a polybenzimidazole-based electrolyte membrane for alkaline water electrolysis, which includes a polybenzimidazole-based polymer, wherein the polybenzimidazole-based polymer is a biaxially oriented film. The polybenzimidazole-based electrolyte membrane for alkaline water electrolysis can reduce the concentration of an alkaline solution by improving the crystallinity of a polybenzimidazole-based polymer to increase the resistance against base, significantly improving the long-term stability of alkaline water electrolysis using a polybenzimidazole-based electrolyte membrane through the improved resistance against base, and by increasing the operation temperature to enhance the catalyst activity.
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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.
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