公开(公告)号：US11515544B2

公开(公告)日：2022-11-29

申请号：US16815871

申请日：2020-03-11

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Hae-Weon Lee ,  Ho Il Ji ,  Byung Kook Kim ,  Jong Ho Lee ,  Ji-Won Son ,  Kyung Joong Yoon ,  Hyoungchul Kim ,  Sungeun Yang ,  Sangbaek Park ,  Junseok Kim ,  Jisu Shin

IPC: H01M4/88 ,  H01M8/1226 ,  H01M4/90 ,  H01M4/86 ,  H01M8/248 ,  H01M8/1253 ,  H01M8/12

Abstract: Disclosed is a method of manufacturing a solid oxide fuel cell using a calendering process. The method includes preparing a stack including an anode support layer (ASL) and an anode functional layer (AFL), calendering the stack to obtain an anode, stacking an electrolyte layer on the anode to obtain an assembly, calendering the assembly to obtain an electrolyte substrate, sintering the electrolyte substrate, and forming a cathode on the electrolyte layer of the electrolyte substrate.

公开(公告)号：US09893367B1

公开(公告)日：2018-02-13

申请号：US15399066

申请日：2017-01-05

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Ji-Won Son ,  Thieu Cam Anh ,  Jongsup Hong ,  Hyoungchul Kim ,  Kyung Joong Yoon ,  Jong Ho Lee ,  Hae-Weon Lee ,  Byung Kook Kim

IPC: B05D5/12 ,  H01M4/88 ,  C23C14/28 ,  H01M8/1246 ,  H01M4/92 ,  C23C14/34 ,  H01M8/124 ,  B05D7/00

CPC classification number: H01M4/8871 ,  B05D5/12 ,  B05D7/50 ,  C23C14/08 ,  C23C14/185 ,  C23C14/22 ,  C23C14/5806 ,  H01M4/8657 ,  H01M4/8889 ,  H01M4/9025 ,  H01M4/928 ,  H01M2004/8684 ,  H01M2008/1293

Abstract: Provided is an interlayer for a thin electrolyte solid oxide cell, a thin electrolyte solid oxide cell including the same, and a method of forming the same. In various embodiments, functional elements (a fuel electrode, an electrolyte and a cathode) of the solid oxide cell are formed by means of a thin film process, and thus a nanostructure of the catalyst is not seriously lost due to agglomeration, different from a powder process. Thus, it is possible to accomplish catalyst activation according to a high specific surface area.

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：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：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.

公开(公告)号：US10790540B2

公开(公告)日：2020-09-29

申请号：US15994269

申请日：2018-05-31

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Hyoungchul Kim ,  Hae-Weon Lee ,  Byung Kook Kim ,  Jong Ho Lee ,  Ji-Won Son ,  Hun-Gi Jung ,  Eu Deum Jung ,  Sung Jun Choi ,  Bin Na Yoon

IPC: H01M10/0562 ,  C01B17/02 ,  C01B17/22 ,  H01M4/02 ,  H01M10/052

Abstract: The present invention relates to a lithium-ion-conductive sulfide-based solid electrolyte which contains lithium (Li), sulfur (S), phosphorus (P), indium (In) and selenium (Se) and has a crystal structure of InSe and a method for preparing the same.

公开(公告)号：US09276272B2

公开(公告)日：2016-03-01

申请号：US14153250

申请日：2014-01-13

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Sung-Il Lee ,  Ji-Won Son ,  Jong Ho Lee ,  Hae June Je ,  Kyung Joong Yoon ,  Hae-Weon Lee ,  Byung Kook Kim

IPC: H01M8/02

CPC classification number: H01M8/0217 ,  H01M8/021 ,  H01M8/0228 ,  H01M8/18 ,  H01M2008/1293 ,  Y02E60/528

Abstract: Disclosed is a metal separator for a solid oxide regenerative fuel cell coated with a conductive spinel oxide film. In the conductive spinel oxide film, yttrium is added to a manganese-cobalt spinel oxide to suppress growth of an insulating oxide film on the surface of the metal separator and volatilization of metal. In the conductive oxide film coated on the metal separator, yttrium is segregated at the grain boundaries of the spinel so that migration of oxygen through the grain boundaries can be suppressed. Therefore, the surface of the metal separator can be protected from exposure to the atmosphere and water vapor when the solid oxide regenerative fuel cell is operated at high temperature. In addition, poisoning of electrodes by metal volatilization from the surface of the metal separator and growth of an insulating oxide film on the surface of the metal separator can be prevented. Therefore, the stability of the solid oxide regenerative fuel cell stack can be markedly improved.

Abstract translation: 公开了一种涂覆有导电尖晶石氧化物膜的固体氧化物再生燃料电池的金属隔板。 在导电性尖晶石氧化物膜中，将钇添加到锰 - 钴尖晶石氧化物中以抑制金属隔板表面上的绝缘氧化物膜的生长和金属的挥发。 在涂覆在金属隔板上的导电氧化膜中，钇在尖晶石的晶界处分离，从而可以抑制氧通过晶界的迁移。 因此，当固体氧化物再生燃料电池在高温下运行时，可以保护金属隔板的表面不暴露于大气和水蒸汽。 此外，可以防止从金属隔板的表面金属挥发引起的电极中毒和金属隔板表面上的绝缘氧化膜的生长。 因此，可以显着提高固体氧化物再生燃料电池堆的稳定性。