公开(公告)号：US11489179B2

公开(公告)日：2022-11-01

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: H01M8/04 ,  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.

公开(公告)号：US12206117B2

公开(公告)日：2025-01-21

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

IPC: H01M4/92 ,  B01J23/28 ,  B01J23/30 ,  B01J23/34 ,  B01J23/38 ,  B01J35/30 ,  B01J37/00 ,  H01M4/86

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.

公开(公告)号：US11791475B2

公开(公告)日：2023-10-17

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

IPC: B01J23/38 ,  B01J37/00 ,  B01J35/00 ,  B01J23/34 ,  B01J23/28 ,  B01J23/30 ,  H01M4/92 ,  H01M4/86

CPC classification number: H01M4/926 ,  B01J23/28 ,  B01J23/30 ,  B01J23/34 ,  B01J23/38 ,  B01J35/008 ,  B01J37/00 ,  H01M4/8657

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.

公开(公告)号：US11376664B2

公开(公告)日：2022-07-05

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

IPC: B22F9/24 ,  B22F9/04 ,  B22F1/07 ,  B22F1/14 ,  B82Y40/00 ,  B82Y30/00

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.