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公开(公告)号：US20210075040A1
公开(公告)日：2021-03-11
申请号：US16777492
申请日：2020-01-30
Applicant: KOREA INSTITUTE OF ENERGY RESEARCH
Inventor： Won Yong LEE , Hwan Yeong OH , Min Jin KIM , Seok Hee PARK , Gu Gon PARK , Tae Hyun YANG , Sung Dae YIM , Young Jun SOHN , Byung Chan BAE , Seung Gon KIM , Dong Won SHIN , Seung Hee WOO , So Jeong LEE , Hye Jin LEE , Yoon Young CHOI
IPC: H01M8/04664 , H01M8/04992
Abstract: A hierarchical fault classification method for a fuel cell system, a multi-stage fault diagnosis method therefor, and a fault diagnosis device therefor are disclosed. The fuel cell system is divided into a subsystem, a component, and an element step by step. The multi-stage fault diagnosis method includes detecting a subsystem, a fault of which occurs, in the fuel cell system composed of a plurality of subsystems and detecting an upper-level component, which causes the fault, among upper-level components included in the subsystem, the fault of which occurs, using measurement data and a control signal.
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公开(公告)号：US20230187659A1
公开(公告)日：2023-06-15
申请号：US18080113
申请日：2022-12-13
Applicant: KOREA INSTITUTE OF ENERGY RESEARCH
Inventor： Min Jin KIM , Young Jun SOHN , Hwan Yeong OH , Yoon Young CHOI , Seung Gon KIM , Won Yong LEE , Tae Hyun YANG , Seok Hee PARK , Sung Dae YIM , Seung Hee WOO , Yun Sik KANG , Gu Gon PARK , Eun Jik LEE , So Jeong LEE , Byung Chan BAE , Dong Won SHIN , Hye Jin LEE , Dong Hwan PARK
IPC: H01M8/0258 , H01M8/04298 , H01M8/1004
CPC classification number: H01M8/0258 , H01M8/04305 , H01M8/1004
Abstract: A modeling method for designing a flow field of a fuel cell including a membrane electrode assembly including a catalyst layer and an electrolyte membrane, a gas diffusion layer, a flow field, and a bipolar plate includes modeling using a numerical model derived from a governing equation including a mass conservation equation of species, a fluid momentum in a porous media, and a modified Butler-Volmer's equation and outputting an oxygen diffusion characteristic in a catalyst layer from the modeling result.
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公开(公告)号：US20230420696A1
公开(公告)日：2023-12-28
申请号：US18465471
申请日：2023-09-12
Applicant: KOREA INSTITUTE OF ENERGY RESEARCH
Inventor： Gu-gon PARK , Eun Jik LEE , Kyunghee KIM , Sung-dae YIM , Seok-hee PARK , Min-ji KIM , Young-jun SOHN , Byungchan BAE , Seung-gon KIM , Dongwon SHIN , Hwanyeong OH , Seung Hee WOO , So Jeong LEE , Hyejin LEE , Yoon Young CHOI , Won-yong LEE , Tae-hyun YANG
CPC classification number: H01M4/926 , H01M4/8657 , B01J23/38 , B01J37/00 , B01J35/008 , B01J23/34 , B01J23/28 , B01J23/30
Abstract: The present disclosure relates to a method for manufacturing core-shell particles using carbon monoxide, and more particularly, to a method for manufacturing core-shell particles, the method of which a simple and fast one-pot reaction enables particle manufacturing to reduce process costs, facilitate scale-up, change various types of core and shell metals, and form a multi-layered shell by including the steps of adsorbing carbon monoxide on a transition metal for a core, and reacting carbon monoxide adsorbed on the surface of the transition metal for the core, a metal precursor for a shell, and a solvent to form particles with a core-shell structure having a reduced metal shell layer formed on a transition metal core.
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Patent Agency Ranking
公开(公告)号：US20230402619A1
公开(公告)日：2023-12-14
申请号：US18188740
申请日：2023-03-23
Applicant: KOREA INSTITUTE OF ENERGY RESEARCH
Inventor： Eun Jik LEE , Gu-gon PARK , DongJe LEE , Sung-dae YIM , Seok-hee PARK , Min-jin KIM , Young-jun SOHN , Byungchan BAE , Seung-gon KIM , Dongwon SHIN , Hwanyeong OH , Seung Hee WOO , So Jeong LEE , Hyejin LEE , Yoon Young CHOI , Yun Sik KANG , Won-yong LEE , Tae-hyun YANG
CPC classification number: H01M4/921 , H01M4/9016 , H01M4/8652
Abstract: A method for preparing a platinum alloy catalyst using an oxide coating according to an embodiment of the present disclosure comprises: a first step of preparing a dispersion by mixing a commercial platinum catalyst and a transition metal precursor with a solvent; a second step of preparing a catalyst by putting an ultrasonic tip into the dispersion prepared through the first step and performing an ultrasonic process; a third step of performing a primary heat treatment process on the catalyst prepared through the second step; a fourth step of performing an acid treatment process on the catalyst that has undergone the primary heat treatment process through the third step; and a fifth step of preparing a platinum alloy catalyst by performing a secondary heat treatment process on the catalyst that has undergone the acid treatment process through the fourth step.
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公开(公告)号：US20240253026A1
公开(公告)日：2024-08-01
申请号：US18412426
申请日：2024-01-12
Applicant: KOREA INSTITUTE OF ENERGY RESEARCH
Inventor： Gu-Gon PARK , Eunjik LEE , Sung-Dae YIM , Seok-Hee PARK , Minjin KIM , Young-Jun SOHN , Byungchan BAE , Seung-Gon KIM , Dongwon SHIN , Seung Wook CHOI , Hwangyeong OH , Seung Hee WOO , So Jeong LEE , Hyejin LEE , Yoon Young CHOI , Yun Sik KANG , Won-Yong LEE , Tae-Hyun YANG
CPC classification number: B01J37/0221 , B01J35/19 , B01J37/08 , B01J37/16 , B01J37/343
Abstract: Provided are a core-shell catalyst with improved durability and a manufacturing method thereof including irradiating ultrasonic waves to a solution containing a reducing solvent, a noble metal precursor, a transition metal precursor, and a carbon support to form a cavity due to the irradiation of the ultra-waves and forming transition metal precursor core and noble metal precursor shell particles due to a difference in vapor pressure; and nitriding the transition metal precursor core and noble metal precursor shell particles at a temperature of 450 to 550° C. and a pressure condition of 60 to 100 bar under a gaseous nitrogen source, in which the transition metal may be any one selected from the group consisting of Y, La, Ce, Zn, and Mn or combinations thereof.
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6.发明公开公开(公告)号：US20230378480A1
公开(公告)日：2023-11-23
申请号：US18161941
申请日：2023-01-31
Applicant: KOREA INSTITUTE OF ENERGY RESEARCH
Inventor： Gu-gon PARK , Eunjik LEE , Ik Sung LIM , Sung-Dae YIM , Seok-Hee PARK , Minjin KIM , Young-Jun SOHN , Byungchan BAE , Seung-gon KIM , Dongwon SHIN , Hwanyeong OH , Seung Hee WOO , So Jeong LEE , Hyejin LEE , Yoon Young CHOI , Yun Sik KANG , Won-yong LEE , Tae-hyun YANG
CPC classification number: H01M4/8882 , H01M4/8657 , H01M4/9058
Abstract: The manufacturing method of a palladium transition metal core-based core-shell electrode catalyst according to an exemplary embodiment of the present disclosure includes a first step of preparing a slurry by irradiating ultrasonic wave to a dispersion solution including a solvent, a platinum precursor, a palladium precursor, a carbon support, and a transition metal precursor, a second step of preparing a solid material by filtering, washing, and drying the slurry prepared in the first step, and a third step of preparing a core-shell electrode catalyst by thermally treating the solid prepared in the second step in a specific gas atmosphere.
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公开(公告)号：US20220077471A1
公开(公告)日：2022-03-10
申请号：US17466453
申请日：2021-09-03
Applicant: KOREA INSTITUTE OF ENERGY RESEARCH
Inventor： Gu-gon PARK , Eun Jik LEE , Kyunghee KIM , Sung-dae YIM , Seok-hee PARK , Min-ji KIM , Young-jun SOHN , Byungchan BAE , Seung-gon KIM , Dongwon SHIN , Hwanyeong OH , Seung Hee WOO , So Jeong LEE , Hyejin LEE , Yoon Young CHOI , Won-yong LEE , Tae-hyun YANG
Abstract: The present disclosure relates to a method for manufacturing core-shell particles using carbon monoxide, and more particularly, to a method for manufacturing core-shell particles, the method of which a simple and fast one-pot reaction enables particle manufacturing to reduce process costs, facilitate scale-up, change various types of core and shell metals, and form a multi-layered shell by including the steps of adsorbing carbon monoxide on a transition metal for a core, and reacting carbon monoxide adsorbed on the surface of the transition metal for the core, a metal precursor for a shell, and a solvent to form particles with a core-shell structure having a reduced metal shell layer formed on a transition metal core.
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公开(公告)号：US20210170488A1
公开(公告)日：2021-06-10
申请号：US16916974
申请日：2020-06-30
Applicant: KOREA INSTITUTE OF ENERGY RESEARCH
Inventor： Gu-gon PARK , Hyun-uk PARK , Won-yong LEE , Sung-dae YIM , Min-jin KIM , Young-jun SOHN , Byungchan BAE , Seung-gon KIM , Dongwon SHIN , Hwanyeong OH , Seung Hee WOO , So Jeong LEE , Hyejin LEE , Yoon Young CHOI , Seok-hee PARK , Tae-hyun YANG
Abstract: The present disclosure is related to a method to control sizes of core-shell nanoparticles comprising the steps of: manufacturing slurry by irradiating ultrasonic waves to a dispersion solution containing a reducing solvent, a carbon support, a transition metal precursor and a precious metal precursor; manufacturing a solid by filtering the manufactured slurry, followed by washing and drying; and manufacturing a nanoparticle of a transition metal core and a platinum shell by heat-treating the dried solid at a temperature of 450 to 900° C. and a pressure of 1 to 90 bar for 0.5 to 10 hours under N2 atmosphere.
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