公开(公告)号：US10074871B2

公开(公告)日：2018-09-11

申请号：US15288494

申请日：2016-10-07

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Hyoung Chul Kim ,  Hun Gi Jung ,  Jong Ho Lee ,  Hae Weon Lee ,  Byung Kook Kim ,  Ji Won Son ,  Wo Dum Jung

IPC: H01M10/0562 ,  H01M10/0525 ,  C01B17/22 ,  H01B1/10

CPC classification number: H01M10/0562 ,  C01B17/22 ,  H01B1/10 ,  H01M10/0525 ,  H01M2300/0068

Abstract: A method for preparing a lithium ion conductive sulfide, which is capable of independently controlling the elemental ratio of lithium (Li), phosphorus (P), sulfur (S), etc, is provided. The method for preparing a lithium ion conductive sulfide can provide a lithium ion conductive sulfide having a crystal structure and an anion cluster distribution distinguished from those of existing ones.

公开(公告)号：US09970118B2

公开(公告)日：2018-05-15

申请号：US15390462

申请日：2016-12-23

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Jong Sup Hong ,  Si Won Kim ,  Man Soo Park ,  Hyoung Chul Kim ,  Kyung Joong Yoon ,  Ji Won Son ,  Jong Ho Lee ,  Hae Weon Lee ,  Byung Kook Kim

IPC: H01M4/04 ,  C25B11/04 ,  B05D1/30 ,  B05D3/10 ,  B05D3/04 ,  B41F15/08 ,  H01M4/88 ,  H01M4/86 ,  H01M4/90

CPC classification number: C25B11/0478 ,  B05D1/30 ,  B05D3/0453 ,  B05D3/108 ,  B41F15/08 ,  C25B1/00 ,  C25B1/04 ,  C25B9/08 ,  H01M4/04 ,  H01M4/8605 ,  H01M4/8842 ,  H01M4/8846 ,  H01M4/885 ,  H01M4/9025 ,  H01M4/905 ,  H01M4/9058

Abstract: A method for uniformly forming a nickel-metal alloy catalyst in a fuel electrode of a solid oxide electrolysis cell is provided.Specifically, before the nickel-metal alloy catalyst is formed, a metal oxide is uniformly distributed on nickel oxide contained in the fuel electrode through infiltration of a metal oxide precursor solution and hydrolysis of urea.

公开(公告)号：US20170170514A1

公开(公告)日：2017-06-15

申请号：US15234234

申请日：2016-08-11

Applicant: Hyundai Motor Company ,  Korea Institute of Science and Technology

Inventor： Yong Jun Jang ,  Ju Young Sung ,  Yong Sung Lee ,  Ho Taek Lee ,  Hyoung Chul Kim ,  Jong Ho Lee ,  Hun Gi Jung ,  Soo Young Cho ,  Yoon Sung Lee

IPC: H01M10/0562 ,  H01M10/0525

CPC classification number: H01M10/0562 ,  C01B17/22 ,  C01B25/14 ,  H01B1/10 ,  H01M10/052 ,  H01M10/0525 ,  H01M2220/20 ,  H01M2300/0068 ,  Y02E60/122 ,  Y02T10/7011

Abstract: Disclosed is a lithium ion-conductive sulfide-based solid electrolyte which includes nickel sulfide and, accordingly, the solid electrolyte can obtain a novel structure and performance.More particularly, the sulfide-based solid electrolyte includes lithium sulfide (Li2S), diphosphorus pentasulfide (P2S5), and nickel sulfide (Ni3S2) in a specific ratio by mol % and exhibits a novel crystal structure due to nickel (Ni). Accordingly, the sulfide-based solid electrolyte has greater lithium ion conductivity than an conventional sulfide-based solid electrolyte and a stable crystal structure.

公开(公告)号：US11631878B2

公开(公告)日：2023-04-18

申请号：US17212261

申请日：2021-03-25

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Ho Il Ji ,  Jong Ho Lee ,  Byung Kook Kim ,  Ji Won Son ,  Kyung Joong Yoon ,  Hyoung Chul Kim ,  Sang Baek Park ,  Sung Eun Yang ,  Jun Seok Kim

IPC: H01M8/1253 ,  H01M4/90 ,  H01M4/88 ,  H01M4/86 ,  H01M8/12

Abstract: Disclosed is a method of manufacturing a solid oxide fuel cell including a multi-layered electrolyte layer using a calendering process. The method for manufacturing a solid oxide fuel cell is a continuous process, thus providing high productivity and maximizing facility investment and processing costs. In addition, the solid oxide fuel cell manufactured by the method includes an anode that is free of interfacial defects and has a uniform packing structure, thereby advantageously greatly improving the production yield and power density. In addition, the solid oxide fuel cell has excellent interfacial bonding strength between respective layers included therein, and includes a multi-layered electrolyte layer in which the secondary phase at the interface is suppressed and which has increased density, thereby advantageously providing excellent output characteristics and long-term stability even at an intermediate operating temperature.

公开(公告)号：US11329314B2

公开(公告)日：2022-05-10

申请号：US16596659

申请日：2019-10-08

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Hyoung chul Kim ,  Byung Kook Kim ,  Hun Gi Jung ,  Kyung Yoon Chung ,  Jong Ho Lee ,  Hae Weon Lee ,  Ji Won Son ,  Eu Deum Jung ,  Ji Su Kim ,  Sung Jun Choi

IPC: H01M4/02 ,  H01M10/0562 ,  H01M10/0525 ,  C01B25/14

Abstract: Disclosed are a sulfide-based solid electrolyte imparted with improved lithium ion conductivity and a method of preparing the same. More particularly, disclosed is a sulfide-based solid electrolyte containing a lithium element (Li), a phosphorus element (P), a sulfur element (S) and a halogen element (X), and including a crystal phase of an argyrodite crystal structure, wherein a molar ratio (X/P) of the halogen element (X) to the phosphorus element (P) is higher than 1.

公开(公告)号：US10483550B2

公开(公告)日：2019-11-19

申请号：US15630471

申请日：2017-06-22

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Kyung Joong Yoon ,  Seung-Hwan Lee ,  Mansoo Park ,  Jongsup Hong ,  Hyoungchul Kim ,  Ji-Won Son ,  Jong Ho Lee ,  Byung Kook Kim ,  Hae-Weon Lee

IPC: H01M4/88 ,  H01M4/90 ,  H01M8/12 ,  H01M8/1253 ,  H01M8/124

Abstract: Provided is a solid oxide cell including a fuel electrode layer, electrolyte layer and an air electrode layer, wherein a diffusion barrier layer is provided between the air electrode layer and the electrolyte layer, the diffusion barrier layer includes: a first diffusion barrier layer formed on the electrolyte layer and including a sintered ceria-based metal oxide containing no sintering aid; and a second diffusion barrier layer formed on the first diffusion barrier layer and including a sintered product of a ceria-based metal oxide mixed with a sintering aid, the first diffusion barrier layer includes a sintered product of nanopowder and macropowder of a ceria-based metal oxide, and the first diffusion barrier layer and the second diffusion barrier layer are sintered at the same time. The diffusion barrier layer is densified, shows high interfacial binding force and prevents formation of a secondary phase derived from chemical reaction with the electrolyte.

公开(公告)号：US10020536B2

公开(公告)日：2018-07-10

申请号：US15404708

申请日：2017-01-12

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Hyoung Chul Kim ,  Sung Jun Choi ,  Jeong Hun Kim ,  Wo Dum Jung ,  Hun Gi Jung ,  Ji Won Son ,  Jong Ho Lee ,  Byung Kook Kim ,  Hae Weon Lee

IPC: H01M10/052 ,  H01M10/0562

CPC classification number: H01M10/0562 ,  C01B17/20 ,  C01B17/22 ,  H01M2300/0068

Abstract: A method for preparing a sulfide-based solid electrolyte which is stable upon exposure to the air is provided. Specifically, a stabilization layer is formed on the surface of a sulfide-based solid electrolyte particle through treatment with a reactive gas.The sulfide-based solid electrolyte with superior air stability can be obtained because oxidation or reduction reactions with water, etc. in the air occur on the stabilization layer rather than on the sulfide-based solid electrolyte particle.

公开(公告)号：US09966624B2

公开(公告)日：2018-05-08

申请号：US15346105

申请日：2016-11-08

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Kyung Joong Yoon ,  Seung-Hwan Lee ,  Mansoo Park ,  Jongsup Hong ,  Hyoungchul Kim ,  Ji-Won Son ,  Jong Ho Lee ,  Byung Kook Kim ,  Hae-Weon Lee

IPC: H01M8/12 ,  H01M8/1253 ,  H01M8/126 ,  H01M8/124

CPC classification number: H01M8/1253 ,  C01F17/0018 ,  C01G51/006 ,  C01P2002/72 ,  C01P2004/03 ,  C01P2004/04 ,  C04B35/50 ,  C04B35/6281 ,  C04B35/62815 ,  C04B35/62823 ,  C04B35/62886 ,  C04B35/62892 ,  C04B2235/3203 ,  C04B2235/3208 ,  C04B2235/3224 ,  C04B2235/3225 ,  C04B2235/3227 ,  C04B2235/3229 ,  C04B2235/3262 ,  C04B2235/3272 ,  C04B2235/3275 ,  C04B2235/3281 ,  C04B2235/3284 ,  C04B2235/443 ,  C04B2235/5436 ,  C04B2235/5445 ,  C04B2235/5454 ,  C04B2235/785 ,  C04B2235/786 ,  C04B2235/9615 ,  H01M8/126 ,  H01M2008/1293 ,  H01M2300/0074 ,  H01M2300/0077

Abstract: Provided is a method for manufacturing a sintered body for an electrolyte and an electrolyte for a fuel cell using the same. More particularly, the following disclosure relates to a method for preparing an electrolyte having a firm thin film layer by using a sintered body having controlled sintering characteristics, and application of the electrolyte to a solid oxide fuel cell. It is possible to control the sintering characteristics of a sintered body through a simple method, such as controlling the amounts of crude particles and nanoparticles. In addition, an electrode using the obtained sintered body having controlled sintering characteristics is effective for forming a firm thin film layer. Further, such an electrolyte having a firm thin film layer formed thereon inhibits combustion of fuel with oxygen when it is applied to a fuel cell, and thus shows significantly effective for improving the quality of a cell.

公开(公告)号：US11050066B2

公开(公告)日：2021-06-29

申请号：US16556007

申请日：2019-08-29

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY ,  INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY

Inventor： Jong Ho Lee ,  Kyung Joong Yoon ,  Sang Hyeok Lee ,  Dong Hwan Kim ,  Jong Sup Hong ,  Yong Gyun Bae

IPC: H01M8/0267 ,  H01M8/0263 ,  H01M8/2485 ,  H01M8/04014 ,  H01M8/124 ,  H01M8/12

Abstract: Disclosed is a fuel cell with improved thermal distribution in a stack including two more unit cells stacked therein. The fuel cell includes a stack including the two more unit cells and separators each having manifolds formed through four sides thereof, a first chamber having an internal space so as to receive air and fuel from the outside and to transfer the air and fuel to a second chamber and so as to receive the air and fuel discharged from the stack and to discharge the air and fuel to the outside, a second chamber having an internal space so as to receive the air and fuel from the first chamber and to transfer the air and fuel to the stack, and a connecting part connecting the first chamber to the second chamber so as to allow the air and fuel to flow to the second chamber from the first chamber.

公开(公告)号：US10923733B2

公开(公告)日：2021-02-16

申请号：US16256905

申请日：2019-01-24

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY ,  INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY

Inventor： Kyung Joong Yoon ,  Yun Jung Lee ,  Ji-su Shin ,  Mansoo Park ,  Ho Il Ji ,  Hyoungchul Kim ,  Ji-Won Son ,  Jong Ho Lee ,  Byung Kook Kim ,  Hae-Weon Lee

IPC: H01M4/00 ,  H01M4/90 ,  H01M8/1246 ,  H01M4/86 ,  H01M8/124

Abstract: The present disclosure relates to a nanocatalyst for an anode of a solid oxide fuel cell and a method for preparing the same. More particularly, the present disclosure relates to a nanocatalyst for an anode of a solid oxide fuel cell obtained by forming a ceramic nanocatalyst including a noble metal dispersed therein in an atomic unit and contained in an ionic state having an oxidation number other than 0 through an in situ infiltration process in the internal pores of a porous electrode, and to application of the nanocatalyst to a solid oxide fuel cell having significantly higher electrochemical characteristics as compared to the solid oxide fuel cells including the conventional nickel-based anode and oxide anode, and particularly showing excellent characteristics at an intermediate or low temperature of 600° C. or less.